• Live Feeds
    • Press Releases
    • Insider Trading
    • FDA Approvals
    • Analyst Ratings
    • Insider Trading
    • SEC filings
    • Market insights
  • Analyst Ratings
  • Alerts
  • Subscriptions
  • Settings
  • RSS Feeds
Quantisnow Logo
  • Live Feeds
    • Press Releases
    • Insider Trading
    • FDA Approvals
    • Analyst Ratings
    • Insider Trading
    • SEC filings
    • Market insights
  • Analyst Ratings
  • Alerts
  • Subscriptions
  • Settings
  • RSS Feeds
PublishGo to App
    Quantisnow Logo

    © 2026 quantisnow.com
    Democratizing insights since 2022

    Services
    Live news feedsRSS FeedsAlertsPublish with Us
    Company
    AboutQuantisnow PlusContactJobsAI superconnector for talent & startupsNEWLLM Arena
    Legal
    Terms of usePrivacy policyCookie policy

    SEC Form S-3 filed by SAB Biotherapeutics Inc.

    12/30/25 10:08:40 AM ET
    $SABS
    Biotechnology: Biological Products (No Diagnostic Substances)
    Health Care
    Get the next $SABS alert in real time by email
    S-3 1 sabs-20251229.htm S-3 S-3

     

    As filed with the U.S. Securities and Exchange Commission on December 29, 2025

    Registration No. 333-

     

     

     

    UNITED STATES

    SECURITIES AND EXCHANGE COMMISSION

    Washington, D.C. 20549

     

     

    FORM S-3

    REGISTRATION STATEMENT

    UNDER

    THE SECURITIES ACT OF 1933

     

    SAB BIOTHERAPEUTICS, INC.

    (Exact Name Of Registrant As Specified In Its Charter)

     

     

     

     

     

     

     

     

    Delaware

     

    85-3899721

     

     

    (State or other jurisdiction of

    incorporation or organization)

     

    (I.R.S. Employer

    Identification No.)

     


    777 W 41st St.; Suite 401

    Miami Beach, FL 33140

    Telephone: (305)-845-2813

    (Address, including zip code, and telephone number, including area code, of registrant’s principal executive offices)

     

     

     

    Samuel J. Reich
    Chief Executive Officer
    SAB Biotherapeutics, Inc.
    777 W 41
    st St., Suite 401
    Miami Beach, Florida 33140

    (305)-845-2813

    (Name, address, including zip code, and telephone number, including area code, of agent for service)

     

     

    Copies to:

    Brian Lee, Esq.

    Ilan Katz, Esq.

    Dentons US LLP

    1221 Avenue of the Americas

    New York, NY 10020

    (212) 768-6700

     


     

     

     

     

    Approximate date of commencement of proposed sale to the public: From time to time or at one time after this registration statement becomes effective in light of market conditions and other factors.

    If the only securities being registered on this Form are being offered pursuant to dividend or interest reinvestment plans, please check the following box. ☐

    If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933, as amended (the “Securities Act”), other than securities offered only in connection with dividend or interest reinvestment plans, check the following box. ☒

    If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration number of the earlier effective registration statement for the same offering. ☐

    If this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

    If this Form is a registration statement pursuant to General Instruction I.D. or a post-effective amendment thereto that shall become effective upon filing with the Commission pursuant to Rule 462(e) under the Securities Act, check the following box. ☐

    If this Form is a post-effective amendment to a registration statement filed pursuant to General Instruction I.D. filed to register additional securities or additional classes of securities pursuant to Rule 413(b) under the Securities Act, check the following box. ☐

    Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer,” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

    Large accelerated filer

    ☐

    Accelerated filer

    ☐

     

     

     

     

    Non-accelerated filer

    ☒

    Smaller reporting company

    ☒

     

     

     

     

     

     

    Emerging growth company

    ☒

    If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. ☐

     

     

    The registrant hereby amends this registration statement on such date or dates as may be necessary to delay its effective date until the registrant shall file a further amendment which specifically states that this registration statement shall thereafter become effective in accordance with Section 8(a) of the Securities Act of 1933 or until the registration statement shall become effective on such date as the Commission, acting pursuant to said Section 8(a), may determine.

    Pursuant to Rule 415(a)(6), the securities being registered hereunder include $50,000,000 of unsold securities which remain unsold as of the date hereof (the Unsold Securities) previously registered by the registrant’s registration on Form S-3 (File No. 333-271768) which was initially filed with the Securities and Exchange Commission on May 9, 2023 and declared effective on May 17, 2023 (the Prior Registration Statement). The aggregate filing fee paid in connection with such Unsold Securities was $5,510. Pursuant to Rule 415(a)(6) under the Securities Act, (i) the registration fee applicable to the Unsold Securities is being carried forward to this registration statement and will continue to be applied to the Unsold Securities and (ii) the offering of the Unsold Securities registered on the Prior Registration Statement will be deemed terminated as of the date of effectiveness of this registration statement. If, after the filing date hereof and prior to the effectiveness of this Registration Statement, the registrant sells any Unsold Securities pursuant to the Prior Registration Statement, the registrant will identify in a pre-effective amendment to this registration statement the updated amount of Unsold Securities from the Prior Registration Statement to be included in this registration statement pursuant to Rule 415(a)(6), and the updated amount of new securities to be registered on this Registration Statement.

     

     

     

     

     


     

     

    EXPLANATORY NOTE

    This registration statement contains two prospectuses:

    •
    a base prospectus (the “Base Prospectus”), which covers the offering, issuance and sale by us of up to a maximum aggregate offering price of $300,000,000 of shares of our common stock and preferred stock, various series of debt securities and/or warrants to purchase any of such securities. We may also issue units comprised of one or more shares of common stock, shares of preferred stock, debt securities, warrants and/or rights in any combination. We may also offer common stock or preferred stock upon conversion of debt securities, common stock upon conversion of preferred stock, or common stock, preferred stock or debt securities upon the exercise of warrants; and
    •
    a prospectus (the “ATM Prospectus”) for an “at the market offering” by us of up to $75,000,000 of our common stock that may be offered and sold under a sales agreement (the “Sales Agreement”) between us and UBS Securities LLC as agent. The common stock that may be offered and sold by us under the ATM Prospectus is included in the $300,000,000 of securities that may be offered and sold by us under the Base Prospectus. Upon termination of the “at the market offering,” any portion of the $75,000,000 included in the ATM Prospectus that is not sold pursuant thereto will be available for sale in other offerings pursuant to the Base Prospectus.

    The Base Prospectus immediately follows this explanatory note. The ATM Prospectus immediately follows the Base Prospectus.

     


     

     

     

    The information in this prospectus is not complete and may be changed. The Registrant may not sell these securities until the registration statement filed with the Securities and Exchange Commission is effective. This prospectus is not an offer to sell these securities and it is not soliciting an offer to buy these securities in any state where an offer or sale is not permitted.

    SUBJECT TO COMPLETION, DATED DECEMBER 29, 2025

    PROSPECTUS

    $300,000,000

     

    img32523786_0.jpg

    Common Stock

    Preferred Stock

    Debt Securities

    Warrants

    Rights

    Units

     

    From time to time, we may offer and sell up to an aggregate of $300,000,000 of any combination of the securities described in this prospectus, either individually or in combination. We may also offer common stock or preferred stock upon conversion of debt securities, common stock upon conversion of preferred stock, or common stock, preferred stock or debt securities upon the exercise of warrants. We may also issue units comprised of one or more shares of common stock, shares of preferred stock, debt securities, warrants and/or rights in any combination.

    When we decide to sell particular securities, we will provide you with the specific terms and the offering price of the securities we are then offering in one or more prospectus supplements to this prospectus. The prospectus supplement may add to, change or update information contained in this prospectus. The prospectus supplement may also contain important information about U.S. federal income tax consequences. You should carefully read this prospectus, together with any prospectus supplements and information incorporated by reference in this prospectus and any prospectus supplements, before you decide to invest. This prospectus may not be used to offer or sell any securities unless accompanied by a prospectus supplement.

    Our common stock is quoted on The Nasdaq Capital Market under the trading symbol “SABS.” Any common stock sold pursuant to this prospectus or any prospectus supplement will be listed on that exchange, subject to official notice of issuance. Each prospectus supplement to this prospectus will contain information, where applicable, as to any other listing on any national securities exchange of the securities covered by the prospectus supplement. On December 26, 2025, the last reported sale price of our common stock was $3.78 per share.

    We may offer and sell the securities described in this prospectus to or through one or more underwriters, dealers or agents, or directly to purchasers on an immediate, continuous or delayed basis. The names of any underwriters, dealers or agents involved in the sale of any securities, the specific manner in which they may be offered and any applicable commissions or discounts will be set forth in an accompanying prospectus supplement covering the sales of those securities.

    We are an “emerging growth company” as defined in Section 2(a) of the Securities Act of 1933, as amended the “Securities Act”) and a “smaller reporting company” as defined under Rule 405 of the Securities Act, and as such, we have elected to comply with certain reduced public company reporting requirements. See “Prospectus

     


     

    Summary— Implications of Being an Emerging Growth Company and a Smaller Reporting Company” on page 3 of this prospectus

    Investing in our securities involves significant risks. We strongly recommend that you read carefully the risks we describe in this prospectus and in any accompanying prospectus supplement, as well as the risk factors that are incorporated by reference into this prospectus from our filings made with the Securities and Exchange Commission. See “Risk Factors” beginning on page 7 of this prospectus.

    We may sell the securities directly or to or through underwriters or dealers, and also to other purchasers or through agents. The names of any underwriters or agents that are included in a sale of securities to you, and any applicable commissions or discounts, will be stated in an accompanying prospectus supplement.

    Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

    The date of this prospectus is , 2025

     

     

     

     

     

     

     

     

     

     

    TABLE OF CONTENTS

     

    Page

    ABOUT THIS PROSPECTUS

     

    1

    TRADEMARKS

     

    1

    PROSPECTUS SUMMARY

     

    2

    SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

     

    5

    RISK FACTORS

     

    7

    USE OF PROCEEDS

     

    8

    DESCRIPTION OF CAPITAL STOCK WE MAY OFFER

     

    9

    DESCRIPTION OF DEBT SECURITIES WE MAY OFFER

     

    13

    DESCRIPTION OF WARRANTS WE MAY OFFER

     

    20

    DESCRIPTION OF RIGHTS WE MAY OFFER

     

    22

    DESCRIPTION OF UNITS WE MAY OFFER

     

    23

    PLAN OF DISTRIBUTION

     

    25

    EXPERTS

     

    26

    LEGAL MATTERS

     

    26

    WHERE YOU CAN FIND MORE INFORMATION

     

    26

    INFORMATION INCORPORATED BY REFERENCE

     

    28

     

     


     

    ABOUT THIS PROSPECTUS

    This prospectus is part of a registration statement that we filed with the U.S. Securities and Exchange Commission (the “SEC”) using a “shelf” registration process. Under this shelf registration process, we may, from time to time, offer and sell common stock, preferred stock, debt securities, warrants for debt and equity securities, rights to purchase common stock, preferred stock, or warrants in one or more series, and units consisting of the foregoing in one or more transactions.

    This prospectus only provides you with a general description of the securities we may sell in these transactions. Each time we sell any securities under this prospectus, we will provide a prospectus supplement that will contain specific information about the terms of that offering. The prospectus supplement also may add, update or change information contained in this prospectus. We may also authorize one or more free writing prospectuses to be provided to you that may contain material information relating to these offerings. This prospectus does not contain all of the information included in the registration statement we filed with the SEC. For further information about us or the securities offered hereby, you should carefully read this prospectus, any applicable prospectus supplement, any related free writing prospectuses, the information and documents incorporated herein by reference and the additional information under the heading “Where You Can Find Additional Information” before making an investment decision.

    The exhibits to the registration statement of which this prospectus is a part contain the full text of certain contracts and other important documents we have summarized in this prospectus. Because these summaries may not contain all the information that you may find important in deciding whether to purchase the securities we may offer, you should review the full text of these documents. The registration statement and the exhibits can be obtained from the SEC as indicated under the heading “Where You Can Find Additional Information” below.

    You should rely only on the information contained or incorporated by reference in this prospectus, any applicable prospectus supplement and any related free writing prospectuses that we may authorize to be provided to you. We have not authorized any other person to provide you with different information. If anyone provides you with different or inconsistent information, you should not rely on it. This prospectus and the accompanying supplement to this prospectus are not an offer to sell these securities and it is not soliciting an offer to buy these securities in any jurisdiction where the offer or sale is not permitted. You should assume that the information appearing in this prospectus, any applicable prospectus supplement or any related free writing prospectuses, as well as information we have previously filed with the SEC and incorporated by reference, is accurate only as of the date on the cover of those documents. If any statement in one of these documents is inconsistent with a statement in another document having a later date-for example, a document incorporated by reference in this prospectus-the statement in the document having the later date modifies or supersedes the earlier statement as our business, financial condition, results of operations and prospects may have changed since the earlier dates.

    This prospectus may not be used to consummate sales of any of these securities unless it is accompanied by a prospectus supplement. To the extent there are inconsistencies between any prospectus supplement, this prospectus and/or any documents incorporated by reference, the document with the most recent date will control.

    In this prospectus and any prospectus supplement, unless the context suggests otherwise, references to “SAB Biotherapeutics,” “SAB,” the “Company,” “we,” “us” and “our” refer to SAB Biotherapeutics, Inc.

    TRADEMARKS

    We and our subsidiaries own or have rights to trademarks, trade names and service marks that they use in connection with the operation of their business. In addition, their names, logos and website names and addresses are their trademarks or service marks. Other trademarks, trade names and service marks appearing in this prospectus are the property of their respective owners. Solely for convenience, in some cases, the trademarks, trade names and service marks referred to in this prospectus are listed without the applicable ®, ™ and SM symbols, but they will assert, to the fullest extent under applicable law, their rights to these trademarks, trade names and service marks.

    1

     


     

    PROSPECTUS SUMMARY

    This summary highlights selected information appearing elsewhere in this prospectus, or incorporated by reference into this prospectus, and does not contain all of the information that you should consider in making your investment decision. You should carefully read this entire prospectus, the applicable prospectus supplement and any free writing prospectus, including the risks of investing in our securities discussed under the heading “Risk Factors” on page 7 of this prospectus and contained in our filings made with the SEC and any applicable prospectus supplement and any related free writing prospectus, and under similar headings in the other documents that are incorporated by reference into this prospectus.

    Business Overview

    We are a clinical-stage biopharmaceutical company focused on developing multi-specific, high-potency, human immunoglobulin G (“hIgGs”), without the need for human donors or convalescent plasma, to treat and prevent autoimmune disorders. Our programs are based on mechanisms of action that have achieved proof-of-concept in clinical trials in indications with significant unmet medical needs. We are focused on developing product candidates for disease targets where a differentiated approach has the greatest potential to be either first-in-class against novel targets or best-in-class against complex targets to treat diseases, including type 1 diabetes (“T1D”) and other autoimmune disorders. Our internally discovered antibodies are multi-specific, meaning they are comprised of multiple hIgG and can bind to multiple sites on targeted immunogens, making them ideally suited to address the complexities associated with many immune-mediated disorders. Our proprietary platform holds the potential to generate additional novel therapeutic candidates to expand our pipeline, utilizing the human immune response to generate the optimal repertoire of hIgG for drug targets of interest. We believe it is the only technology capable of producing disease-targeted, hIgG in large quantities without the need for human plasma donors. We have optimized genetic engineering in the development of transchromosomic cattle, or Tc Bovine, which produce hIgG. Our engineering of our production platform drives IgG1 production across our pipeline. In addition, this differentiated approach using polyclonal antibodies has no biosimilar pathway, which provides a significant barrier to competitive polyclonal approaches.

    SAB-142: Our Lead Product Candidate

    Our wholly owned lead product candidate, SAB-142 is a human anti-thymocyte globulin (“hATG”) focused on preventing or delaying the progression of Stage 3 T1D. SAB-142 is a first-in-class, multi-target hATG treatment designed to provide superior efficacy and safety in delaying the onset or progression of T1D. SAB-142 is expected to reduce autoimmune β-cell destruction and delay progression or onset of T1D in patients with Stage 3 or Stage 2 T1D, respectively. The mechanism of action of SAB-142 has been clinically validated in numerous clinical trials with a rabbit anti-thymocyte globulin (“rATG”), and rATG has demonstrated in multiple clinical trials the ability to slow disease progression in patients with new or recent onset of Stage 3 T1D. In addition, data from more than 700 human subjects treated with antibodies produced by our platform support the expectation of a zero-serum sickness rate and a zero incidence of neutralizing anti-drug antibodies (“ADA”) within the upcoming SAB-142 clinical trials.

    We received an Investigational New Drug (“IND”) clearance from the FDA in May 2024 and announced positive topline data from our Phase 1 clinical trial of SAB-142 in January 2025. We are advancing SAB-142 into a Phase 2b clinical trial called the SAFEGUARD study. On May 29, 2025, the Company held a constructive Type B meeting with the FDA. The meeting followed positive topline data from a Phase 1 single-ascending dose trial in healthy volunteers for SAB-142. The primary discussion centered on questions related to all aspects of SAB-142’s Phase 2b SAFEGUARD clinical trial design and chemistry, manufacturing, and controls processes. The FDA provided clear, constructive, and actionable guidance during the discussion leading to alignment on the design and advancement of our Phase 2b SAFEGUARD study. SAB confirmed its intent with the FDA to utilize the data from this study as supportive evidence for future regulatory approval.

    2

     


     

    Other Immunology Indications

    T- and B-cells are multifunctional lymphocytes whose dysregulation was shown to have a central role in the pathogenesis of more than 80 autoimmune diseases, including T1D, systemic lupus erythematosus (“SLE”), rheumatoid arthritis (“RA”), multiple sclerosis (“MS”) and celiac disease. The therapeutic success to date of lymphocyte-mediating therapies in variety of autoimmune diseases and our in vivo and in vitro pre-clinical and Phase 1 work from SAB-142 in T1D will support direct progression into Phase 2 clinical trials in other autoimmune indications.

    Since the commencement of our operations, we have devoted substantially all of our resources to research and development activities, organizing and staffing our company, business planning, raising capital, establishing and maintaining our intellectual property portfolio, conducting preclinical studies and clinical trials and providing general and administrative support for these operations.

    Corporate Information

    We were incorporated in the State of Delaware on November 12, 2020, as a special purpose acquisition company under the name Big Cypress Acquisition Corp. (“BCYP”). On January 14, 2021, BCYP completed its initial public offering. On October 22, 2021, BCYP consummated a business combination with SAB Biotherapeutics, Inc. (the “Business Combination”), which changed its name to SAB Sciences, Inc. In connection with the closing of the business combination, BCYP changed its name to SAB Biotherapeutics, Inc. and SAB Sciences, Inc. became a subsidiary of SAB Biotherapeutics, Inc.

    Our principal executive offices are located at 777 W 41st St., Suite 401 Miami Beach, Florida 33140, and our telephone number is (305)-845-2813. Our website is located at https://www.sab.bio. We do not incorporate by reference into this prospectus the information on, or accessible through, our website. Our common stock trades on The Nasdaq Capital Market under the symbol “SABS”.

    Implications of Being an Emerging Growth Company and a Smaller Reporting Company

    We are an “emerging growth company,” as defined in Section 2(a) of the Securities Act, and therefore we intend to take advantage of certain exemptions from various public company reporting requirements, including not being required to have our internal control over financial reporting audited by our independent registered public accounting firm pursuant to Section 404(b) of the Sarbanes-Oxley Act of 2002, reduced disclosure obligations regarding executive compensation in this prospectus, our periodic reports and our proxy statements and exemptions from the requirements of holding a nonbinding advisory vote on executive compensation and any golden parachute payments not previously approved. We will remain an emerging growth company until the earliest of (i) the last day of the fiscal year in which the market value of our common stock that is held by non-affiliates equals or exceeds $700 million as of the end of that year’s second fiscal quarter, (ii) the last day of the fiscal year in which we have total annual gross revenue of $1.235 billion or more during such fiscal year (as indexed for inflation), (iii) the date on which we have issued more than $1 billion in non-convertible debt in the prior three-year period or (iv) December 31, 2026.

    We are also a “smaller reporting company” as defined under the Securities Act and the Securities Exchange Act of 1934, as amended (the “Exchange Act”). We may continue to be a smaller reporting company so long as either (i) the market value of shares of our common stock held by non-affiliates is less than $250 million or (ii) our annual revenue was less than $100 million during the most recently completed fiscal year and the market value of shares of our common stock held by non-affiliates is less than $700 million. If we are a smaller reporting company at the time we cease to be an emerging growth company, we may continue to rely on exemptions from certain disclosure requirements that are available to smaller reporting companies. Specifically, as a smaller reporting company, we may choose to present only the two most recent fiscal years of audited financial statements in our Annual Report on Form 10-K and have reduced disclosure obligations regarding executive compensation, and, similar to emerging growth companies, if we are a smaller reporting company under the requirements of (ii) above, we would not be required to obtain an attestation report on internal control over financial reporting issued by our independent registered public accounting firm.

    3

     


     

    Securities We May Offer Under This Prospectus

    We may offer shares of our common stock and preferred stock, various series of debt securities and/or warrants to purchase any of such securities, either individually or in combination, up to a total dollar amount of $300,000,000, from time to time under this prospectus, together with the applicable prospectus supplement and any related free writing prospectus, at prices and on terms to be determined by market conditions at the time of any offering. We may also offer common stock, preferred stock and/or debt securities upon the exercise of warrants, and we may offer common stock or preferred stock upon the conversion of preferred stock or debt securities. This prospectus provides you with a general description of the securities we may offer. Each time we offer a type or series of securities under this prospectus, we will provide a prospectus supplement that will describe the specific amounts, prices and other important terms of the securities, including, to the extent applicable:

    •
    designation or classification;
    •
    aggregate principal amount or aggregate offering price;
    •
    maturity date, if applicable;
    •
    original issue discount, if any;
    •
    rates and times of payment of interest or dividends, if any;
    •
    redemption, conversion, exercise, exchange or sinking fund terms, if any;
    •
    conversion or exchange prices or rates, if any, and, if applicable, any provisions for changes to or adjustments in the conversion or exchange prices or rates and in the securities or other property receivable upon conversion or exchange;
    •
    ranking;
    •
    restrictive covenants, if any;
    •
    voting or other rights, if any;
    •
    material or special U.S. federal income tax considerations, if any.

    The applicable prospectus supplement and any related free writing prospectus that we may authorize to be provided to you may also add, update or change any of the information contained in this prospectus or in the documents we have incorporated by reference. However, no prospectus supplement or free writing prospectus will offer a security that is not registered and described in this prospectus at the time of the effectiveness of the registration statement of which this prospectus is a part.

    4

     


     

    SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

    This prospectus and certain information incorporated herein by reference contains forward-looking statements that involve risks and uncertainties. Our actual results could differ materially from those discussed in the forward-looking statements. The statements contained in this prospectus that are not purely historical are forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended (the “Securities Act”), and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). Forward-looking statements are often identified by the use of words such as, but not limited to, “anticipate,” “believe,” “can,” “continue,” “could,” “estimate,” “expect,” “intend,” “may,” “plan,” “project,” “seek,” “should,” “strategy,” “target,” “will,” “would” and similar expressions or variations intended to identify forward-looking statements. These statements are based on the beliefs and assumptions of our management based on information currently available to management. Such forward-looking statements are subject to risks, uncertainties and other important factors that could cause actual results and the timing of certain events to differ materially from future results expressed or implied by such forward-looking statements.

    Factors that might cause these differences include the following:

    •
    the success, cost and timing of our product development activities and clinical trials, including statements regarding our plans for clinical development of our product candidates, the initiation and completion of clinical trials and related preparatory work and the expected timing of the availability of results of clinical trials;
    •
    our ability to recruit and enroll suitable patients in our clinical trials;
    •
    the potential indications, attributes and benefits of our product candidates;
    •
    our ability to obtain and maintain regulatory approval for our product candidates, and any related restrictions, limitations or warnings in the label of an approved product candidate;
    •
    our ability to obtain funding for our operations, including funding necessary to complete further development, approval and, if approved, commercialization of our product candidates;
    •
    the period over which we anticipate our existing cash and cash equivalents will be sufficient to fund our operating expense and capital expenditure requirements;
    •
    the potential for our business development efforts to maximize the potential value of our portfolio;
    •
    our ability to identify, in-license or acquire additional product candidates;
    •
    our ability to compete with other companies currently marketing or engaged in the development of treatments for the indications that we are pursuing for our product candidates;
    •
    our expectations regarding our ability to obtain and maintain intellectual property protection for our product candidates and the duration of such protection;
    •
    our ability to contract with and rely on third parties to assist in conducting our clinical trials and manufacturing our product candidates;
    •
    our manufacturing capabilities, third-party contractor capabilities and strategy;
    •
    our plans related to manufacturing, supply and other collaborative agreements;
    •
    the size and growth potential of the markets for our product candidates, and our ability to serve those markets, either alone or in partnership with others;
    •
    the rate and degree of market acceptance of our product candidates, if approved;
    •
    the pricing and reimbursement of our product candidates, if approved;
    •
    regulatory developments in the United States and foreign countries;
    •
    the impact of laws, regulations, accounting standards, regulatory requirements, judicial decisions and guidance issued by authoritative bodies;

    5

     


     

    •
    our ability to attract and retain key scientific, medical, commercial or management personnel;
    •
    our estimates regarding expenses, future revenue, capital requirements and needs for additional financing;
    •
    our financial performance;
    •
    our ability to maintain our listing on The Nasdaq Capital Market; and
    •
    our ability to continue as a going concern.

    6

     


     

    RISK FACTORS

    Before you invest in any of the company’s securities, in addition to the other information in this prospectus and the applicable prospectus supplement, you should carefully consider (i) the risk factors contained in the Company’s most recent annual report on Form 10-K, which is incorporated by reference into this prospectus, (ii) all of the other information included or incorporated by reference in this prospectus, and (iii) the applicable prospectus supplement, as the same may be updated from time to time by the Company’s future filings under the Exchange Act.

    The risks and uncertainties described herein are not the only ones facing the Company. Additional risks and uncertainties not presently known to the Company or that the Company currently deems immaterial may also impair its business or operations. Any adverse effect on the Company’s business, financial condition or operating results could result in a decline in the value of the securities and the loss of all or part of your investment. The prospectus supplement applicable to each series of securities the Company offers may contain a discussion of additional risks applicable to an investment in the Company and the securities the Company is offering under that prospectus supplement.

    7

     


     

    USE OF PROCEEDS

    Unless otherwise indicated in the prospectus supplement, we will use the net proceeds from the sale of securities offered by this prospectus for development and commercialization of product candidates, working capital, and general corporate purposes. In addition, we believe opportunities may exist from time to time to expand our current business through acquisitions or in-licenses of, or investments in, complementary companies, medicines, intellectual property or technologies. While we have no current agreements or commitments for any specific acquisitions, in-licenses or investments at this time, we may use a portion of the net proceeds for these purposes. As of the date of this prospectus, we have not identified any specific and material proposed uses of the anticipated proceeds.

    Our expected use of net proceeds from the sale of any securities offered pursuant to the applicable prospectus supplement for such offering will vary depending on our then current intentions based upon our plans and business condition. As of the date of this prospectus, we cannot predict with certainty all of the particular uses for the net proceeds to be received upon the completion of any offering or the amounts that we will actually spend on any specific uses set forth above. The amounts and timing of our actual use of the net proceeds will vary depending on numerous factors, including the factors described under or referenced under the heading “Risk Factors” in this prospectus. As a result, unless otherwise specified in the prospectus supplement, our management will have broad discretion in its application of the net proceeds, and investors will be relying on our judgment in such application.

    Pending use of net proceeds from the sale of securities offered by this prospectus and the applicable prospectus supplement for such sale, we may invest in short-term and intermediate-term interest-bearing obligations, investment-grade instruments, certificates of deposit or direct or guaranteed obligations of the U.S. government.

    8

     


     

     

    DESCRIPTION OF CAPITAL STOCK WE MAY OFFER

    The following description summarizes important terms of our capital stock. For a complete description, you should refer to our certificate of incorporation, as amended, and bylaws, which are incorporated by reference as exhibits to the registration statement of which this prospectus is a part, as well as the relevant portions of the Delaware General Corporation Law (the “DGCL”).

    General

    Our authorized capital stock consists of 800,000,000 shares of common stock, $0.0001 par value per share, and 10,000,000 shares of preferred stock, $0.0001 par value per share.

    The following description of our common stock and preferred stock, together with the additional information included in any applicable prospectus supplements or related free writing prospectuses, summarizes the material terms and provisions of these types of securities, but it is not complete. For the complete terms of our common stock and preferred stock, please refer to our certificate of incorporation, as amended, and our bylaws that are incorporated by reference into the registration statement which includes this prospectus and, with respect to preferred stock, any certificate of designation that we may file with the SEC for a series of preferred stock we may designate, if any.

    We will describe in a prospectus supplement or related free writing prospectuses, the specific terms of any common stock or preferred stock we may offer pursuant to this prospectus. If indicated in a prospectus supplement, the terms of such common stock or preferred stock may differ from the terms described below.

    Common Stock

    Voting Power

    Except as otherwise required by law or as otherwise provided in any certificate of designation for any series of preferred stock, the holders of common stock possess all voting power for the election of our directors and all other matters requiring stockholder action. Holders of common stock are entitled to one vote per share on matters to be voted on by stockholders.

    Dividends

    Holders of common stock will be entitled to receive such dividends, if any, as may be declared from time to time by our board of directors in its discretion out of funds legally available therefor. In no event will any stock dividends or stock splits or combinations of stock be declared or made on common stock unless the shares of common stock at the time outstanding are treated equally and identically.

    Liquidation, Dissolution and Winding Up

    In the event of our voluntary or involuntary liquidation, dissolution, distribution of assets or winding-up, the holders of the common stock will be entitled to receive an equal amount per share of all of our assets of whatever kind available for distribution to stockholders, after the rights of the holders of the preferred stock have been satisfied.

    Preemptive or Other Rights

    Our stockholders have no preemptive or other subscription rights and there are no sinking fund or redemption

    provisions applicable to common stock.

    Election of Directors

    Our board of directors is divided into three classes, Class I, Class II and Class III, with only one class of directors being elected in each year and each class serving a three-year term, except with respect to the election of directors at

    9

     


     

    the special meeting held in connection with the Business Combination, Class I directors are elected to an initial one-year term (and three-year terms subsequently), the Class II directors are elected to an initial two-year term (and three-year terms subsequently) and the Class III directors are elected to an initial three-year term (and three-year terms subsequently). There is no cumulative voting with respect to the election of directors, with the result that the holders of more than 50% of the shares voted for the election of directors can elect all of the directors.

    Preferred Stock

    Our Amended and Restated Certificate of Incorporation provides that shares of preferred stock may be issued from time to time in one or more series. Our board of directors is authorized to fix the voting rights, if any, designations, powers and preferences, the relative, participating, optional or other special rights, and any qualifications, limitations and restrictions thereof, applicable to the shares of each series of preferred stock. The Board is able to, without stockholder approval, issue preferred stock with voting and other rights that could adversely affect the voting power and other rights of the holders of common stock and could have anti-takeover effects. The ability of our board of directors to issue preferred stock without stockholder approval could have the effect of delaying, deferring or preventing a change of control of the Company or the removal of existing management.

    As of the date hereof, we have 29,091 shares of Series A Convertible Preferred Stock, par value $0.0001 per share(“Series A Preferred Stock”), issued and outstanding and 638,558 shares of Series B Convertible Preferred Stock, par value $0.0001 per share (“Series B Preferred Stock”), issued and outstanding. The Series A Preferred Stock and Series B Preferred Stock are not being offered herein.

    Certain Anti-Takeover Provisions of Delaware Law

    Special Meetings of Stockholders

    Our Amended and Restated Bylaws provide that special meetings of our stockholders may be called only by a majority vote of the board of directors, by the Chairperson of the board of directors, or by the chief executive officer.

    Advance Notice Requirements for Stockholder Proposals and Director Nominations

    Our Amended and Restated Bylaws provide that stockholders seeking to bring business before our annual meeting of stockholders, or to nominate candidates for election as directors at our annual meeting of stockholders, must provide timely notice of their intent in writing. To be timely under our Amended and Restated Bylaws, a stockholder’s notice will need to be received by the company secretary at our principal executive offices not later than the close of business on the 90th day nor earlier than the open of business on the 120th day prior to the first anniversary of the preceding year’s annual meeting. Pursuant to Rule 14a-8 of the Exchange Act, proposals seeking inclusion in our annual proxy statement must comply with the notice periods contained therein. Our Amended and Restated Bylaws also specify certain requirements as to the form and content of a stockholders’ meeting. These provisions may preclude our stockholders from bringing matters before our annual meeting of stockholders or from making nominations for directors at our annual meeting of stockholders.

    Authorized but Unissued Shares

    Our authorized but unissued common stock and preferred stock are available for future issuances without stockholder approval and could be utilized for a variety of corporate purposes, including future offerings to raise additional capital, acquisitions and employee benefit plans. The existence of authorized but unissued and unreserved common stock and preferred stock could render more difficult or discourage an attempt to obtain control of us by means of a proxy contest, tender offer, merger or otherwise.

    Exclusive Forum Selection

    The Amended and Restated Certificate of Incorporation provides that unless we consent in writing to the selection of an alternative forum, the Court of Chancery of the State of Delaware (subject to certain limited exceptions) shall be the sole and exclusive forum for any of the following claims (i) any derivative claim or cause of action brought on

    10

     


     

    our behalf, (ii) any claim or cause of action asserting a claim of breach of a fiduciary duty owed by any director, officer or other employee of the Company to the Company or to the Company’s stockholders, (iii) any claim or cause of action against us, our directors, officers or employees arising pursuant to any provision of the DGCL, the Amended and Restated Certificate of Incorporation or the Amended and Restated Bylaws, and (iv) any claim or cause of action against the Company or any director, officer or other employee of the Company governed by the internal affairs doctrine, in all cases to the fullest extent permitted by law and subject to the court’s having personal jurisdiction over the indispensable parties named as defendants. Any person or entity holding, owning or otherwise acquiring any interest in shares of capital stock of the Company shall be deemed to have notice of and to have consented to such provisions. If the claim is brought outside of Delaware, the stockholder asserting such claim will be deemed to have consented to service of process on such stockholder’s counsel, except with respect to claims: (A) as to which the Court of Chancery in the State of Delaware determines that there is an indispensable party not subject to the jurisdiction of the Court of Chancery (and the indispensable party does not consent to personal jurisdiction of the Court of Chancery within ten days following such determination), (B) which is vested in the exclusive jurisdiction of a court or forum other than the Court of Chancery, (C) for which the Court of Chancery does not have subject matter jurisdiction, or (D) any action arising under the Securities Act.

    Although we believe these provisions benefit us by providing increased consistency in the application of Delaware law in the types of lawsuits to which they apply, a court may determine that these provisions are unenforceable, and to the extent they are enforceable, the provisions may have the effect of discouraging lawsuits against our directors and officers, although our stockholders will not be deemed to have waived our compliance with federal securities laws and the rules and regulations thereunder. Additionally, we cannot be certain that a court will decide that these provisions are either applicable or enforceable, and if a court were to find the choice of forum provisions contained in our Amended and Restated Certificate of Incorporation to be inapplicable or unenforceable in an action, we may incur additional costs associated with resolving such action in other jurisdictions, which could harm our business, operating results and financial condition.

    Our Amended and Restated Certificate of Incorporation provides that the exclusive forum provision will be applicable to the fullest extent permitted by applicable law. Section 27 of the Exchange Act creates exclusive federal jurisdiction over all suits brought to enforce any duty or liability created by the Exchange Act or the rules and regulations thereunder. As a result, the exclusive forum provision will not apply to suits brought to enforce any duty or liability created by the Exchange Act or any other claim for which the federal courts have exclusive jurisdiction. Furthermore, Section 22 of the Securities Act creates concurrent jurisdiction for federal and state courts over all suits brought to enforce any duty or liability created by the Securities Act or the rules and regulations thereunder. Accordingly, both state and federal courts have jurisdiction to entertain such claims. To prevent having to litigate claims in multiple jurisdictions and the threat of inconsistent or contrary rulings by different courts, among other considerations, the Amended and Restated Certificate of Incorporation provides that the federal district courts of the United States will be the exclusive forum for resolving any complaint asserting a cause of action arising under the Securities Act.

    Section 203 of the Delaware General Corporation Law

    We are subject to provisions of Section 203 of the DGCL regulating corporate takeovers under our Amended and Restated Certificate of Incorporation. This statute prevents certain Delaware corporations, under certain circumstances, from engaging in a “business combination” with:

    •
    a stockholder who owns 15% or more of our outstanding voting stock (otherwise known as an “interested stockholder”);
    •
    an affiliate of an interested stockholder; or
    •
    an associate of an interested stockholder, for three years following the date that the stockholder became an interested stockholder.

    A “business combination” includes a merger or sale of more than 10% of our assets. However, the above provisions of Section 203 do not apply if:

    •
    our board of directors approves the transaction that made the stockholder an “interested stockholder,” prior to the date of the transaction

    11

     


     

    •
    after the completion of the transaction that resulted in the stockholder becoming an interested stockholder, that stockholder owned at least 85% of our voting stock outstanding at the time the transaction commenced, other than statutorily excluded shares of common stock; or
    •
    on or subsequent to the date of the transaction, our initial business combination is approved by our board of directors and authorized at a meeting of our stockholders, and not by written consent, by an affirmative vote of at least two-thirds of the outstanding voting stock not owned by the interested stockholder.

    Under certain circumstances, this provision will make it more difficult for a person who would be an “interested stockholder” to effect various business combinations with the Company for a three-year period. This provision may encourage companies interested in acquiring us to negotiate in advance with our board of directors because the stockholder approval requirement would be avoided if our board of directors approves either the business combination or the transaction which results in the stockholder becoming an interested stockholder. These provisions also may have the effect of preventing changes in our board of directors and may make it more difficult to accomplish transactions which stockholders may otherwise deem to be in their best interests.

    Limitation on Liability and Indemnification of Directors and Officers

    The Amended and Restated Certificate of Incorporation eliminates directors’ liability for monetary damages to the fullest extent permitted by applicable law. Our Amended and Restated Certificate of Incorporation requires the Company to indemnify and advance expenses to, to the fullest extent permitted by applicable law, its directors, officers and agents and prohibit any retroactive changes to the rights or protections or increase the liability of any director in effect at the time of the alleged occurrence of any act or omission to act giving rise to liability or indemnification. We believe these provisions in our Amended and Restated Certificate of Incorporation are necessary to attract and retain qualified persons as directors and officers. However, these provisions may discourage stockholders from bringing a lawsuit against our directors for breach of their fiduciary duty. These provisions also may have the effect of reducing the likelihood of derivative litigation against directors and officers, even though such an action, if successful, might otherwise benefit us and our stockholders. Furthermore, a stockholder’s investment may be adversely affected to the extent we pay the costs of settlement and damage awards against directors and officers pursuant to these indemnification provisions.

    Transfer Agent

    The transfer agent for our securities is Continental Stock Transfer & Trust Company. The transfer agent’s address is One State Street Plaza, 30th Floor New York, New York 10004.

    12

     


     

     

    DESCRIPTION OF DEBT SECURITIES WE MAY OFFER

    The following description, together with the additional information we include in any applicable prospectus supplements or free writing prospectuses, summarizes the material terms and provisions of the debt securities that we may offer under this prospectus. We may issue debt securities, in one or more series, as either senior or subordinated debt or as senior or subordinated convertible debt. While the terms we have summarized below will apply generally to any future debt securities we may offer under this prospectus, we will describe the particular terms of any debt securities that we may offer in more detail in the applicable prospectus supplement or free writing prospectus. The terms of any debt securities we offer under a prospectus supplement may differ from the terms we describe below. Unless the context requires otherwise, whenever we refer to the “indentures,” we also are referring to any supplemental indentures that specify the terms of a particular series of debt securities.

    We will issue any senior debt securities under the senior indenture that we will enter into with the trustee named in the senior indenture. We will issue any subordinated debt securities under the subordinated indenture and any supplemental indentures that we will enter into with the trustee named in the subordinated indenture. We have filed forms of these documents as exhibits to the registration statement, of which this prospectus is a part, and supplemental indentures and forms of debt securities containing the terms of the debt securities being offered will be filed as exhibits to the registration statement of which this prospectus is a part or will be incorporated by reference from reports that we file with the SEC.

    The indentures will be qualified under the Trust Indenture Act of 1939, as amended, or the Trust Indenture Act. We use the term “trustee” to refer to either the trustee under the senior indenture or the trustee under the subordinated indenture, as applicable.

    The following summaries of material provisions of the senior debt securities, the subordinated debt securities and the indentures are subject to, and qualified in their entirety by reference to, all of the provisions of the indenture and any supplemental indentures applicable to a particular series of debt securities. We urge you to read the applicable prospectus supplements and any related free writing prospectuses related to the debt securities that we may offer under this prospectus, as well as the complete indenture that contains the terms of the debt securities. Except as we may otherwise indicate, the terms of the senior indenture and the subordinated indenture are identical.

    General

    The terms of each series of debt securities will be established by or pursuant to a resolution of our board of directors and set forth or determined in the manner provided in an officers’ certificate or by a supplemental indenture. Debt securities may be issued in separate series without limitation as to aggregate principal amount. We may specify a maximum aggregate principal amount for the debt securities of any series. We will describe in the applicable prospectus supplement the terms of the series of debt securities being offered, including:

    •
    the title;
    •
    the principal amount being offered and, if a series, the total amount authorized and the total amount outstanding;
    •
    any limit on the amount that may be issued;
    •
    whether or not we will issue the series of debt securities in global form, and, if so, the terms and who the depositary will be;
    •
    the maturity date;
    •
    whether and under what circumstances, if any, we will pay additional amounts on any debt securities held by a person who is not a U.S. person for tax purposes, and whether we can redeem the debt securities if we have to pay such additional amounts;
    •
    the annual interest rate, which may be fixed or variable, or the method for determining the rate and the date interest will begin to accrue, the dates interest will be payable and the regular record dates for interest payment dates or the method for determining such dates;

    13

     


     

    •
    whether or not the debt securities will be secured or unsecured, and the terms of any secured debt;
    •
    the terms of the subordination of any series of subordinated debt;
    •
    the place where payments will be payable;
    •
    restrictions on transfer, sale or other assignment, if any;
    •
    our right, if any, to defer payment of interest and the maximum length of any such deferral period;
    •
    the date, if any, after which, and the price at which, we may, at our option, redeem the series of debt securities pursuant to any optional or provisional redemption provisions and the terms of those redemption provisions;
    •
    provisions for a sinking fund purchase or other analogous fund, if any, including the date, if any, on which, and the price at which we are obligated, pursuant thereto or otherwise, to redeem, or at the holder’s option, to purchase, the series of debt securities and the currency or currency unit in which the debt securities are payable;
    •
    provisions relating to modification of the terms of the security or the rights of the security holder;
    •
    whether the indenture will restrict our ability or the ability of our subsidiaries to:
    •
    incur additional indebtedness;
    •
    issue additional securities;
    •
    create liens;
    •
    pay dividends or make distributions in respect of our capital stock or the capital stock of our subsidiaries;
    •
    redeem capital stock;
    •
    place restrictions on our subsidiaries’ ability to pay dividends, make distributions or transfer assets;
    •
    make investments or other restricted payments;
    •
    sell, transfer or otherwise dispose of assets;
    •
    enter into sale-leaseback transactions;
    •
    engage in transactions with stockholders or affiliates;
    •
    issue or sell stock of our subsidiaries;
    •
    effect a consolidation or merger;
    •
    whether the indenture will require us to maintain any interest coverage, fixed charge, cash flow-based, asset-based or other financial ratios;
    •
    information describing any book-entry features;
    •
    the applicability of the provisions in the indenture on discharge;
    •
    whether the debt securities are to be offered at a price such that they will be deemed to be offered at an “original issue discount” as defined in paragraph (a) of Section 1273 of the Internal Revenue Code of 1986, as amended;
    •
    the denominations in which we will issue the series of debt securities, if other than denominations of $1,000 and any integral multiple thereof;
    •
    the currency of payment of debt securities if other than U.S. dollars and the manner of determining the equivalent amount in U.S. dollars; and
    •
    any other specific terms, preferences, rights or limitations of, or restrictions on, the debt securities, including any additional events of default or covenants provided with respect to the debt securities, and any terms that may be required by us or advisable under applicable laws or regulations.

    U.S. federal income tax consequences applicable to debt securities sold at an original issue discount will be described in the applicable prospectus supplement. In addition, U.S. federal income tax or other consequences applicable to any debt securities which are denominated in a currency or currency unit other than U.S. dollars may be described in the applicable prospectus supplement.

    14

     


     

    Conversion or Exchange Rights

    We will set forth in the applicable prospectus supplement the terms under which a series of debt securities may be convertible into or exchangeable for our common stock, our preferred stock or other securities (including securities of a third party). We will include provisions as to whether conversion or exchange is mandatory, at the option of the holder or at our option. We may include provisions pursuant to which the number of shares of our common stock, our preferred stock or other securities (including securities of a third party) that the holders of the series of debt securities receive would be subject to adjustment.

    Consolidation, Merger or Sale

    Unless we provide otherwise in the prospectus supplement applicable to a particular series of debt securities, the indentures will not contain any covenant that restricts our ability to merge or consolidate, or sell, convey, transfer or otherwise dispose of all or substantially all of our assets. However, any successor to or acquiror of such assets must assume all of our obligations under the indentures or the debt securities, as appropriate. If the debt securities are convertible into or exchangeable for our other securities or securities of other entities, the person with whom we consolidate or merge or to whom we sell all of our property must make provisions for the conversion of the debt securities into securities that the holders of the debt securities would have received if they had converted the debt securities before the consolidation, merger or sale.

    Events of Default under the Indenture

    Unless we provide otherwise in the prospectus supplement applicable to a particular series of debt securities, the following are events of default under the indentures with respect to any series of debt securities that we may issue:

    •
    if we fail to pay interest when due and payable and our failure continues for 90 days and the time for payment has not been extended;
    •
    if we fail to pay the principal, premium or sinking fund payment, if any, when due and payable and the time for payment has not been extended;
    •
    if we fail to observe or perform any other covenant contained in the debt securities or the indentures, other than a covenant specifically relating to another series of debt securities, and our failure continues for 90 days after we receive notice from the trustee or we and the trustee receive notice from the holders of at least 25% in aggregate principal amount of the outstanding debt securities of the applicable series; and
    •
    if specified events of bankruptcy, insolvency or reorganization occur.

    We will describe in each applicable prospectus supplement any additional events of default relating to the relevant series of debt securities. If an event of default with respect to debt securities of any series occurs and is continuing, other than an event of default specified in the last bullet point above, the trustee or the holders of at least 25% in aggregate principal amount of the outstanding debt securities of that series, by notice to us in writing, and to the trustee if notice is given by such holders, may declare the unpaid principal, premium, if any, and accrued interest, if any, due and payable immediately. If an event of default arises due to the occurrence of certain specified bankruptcy, insolvency or reorganization events, the unpaid principal, premium, if any, and accrued interest, if any, of each issue of debt securities then outstanding shall be due and payable without any notice or other action on the part of the trustee or any holder.

    The holders of a majority in principal amount of the outstanding debt securities of an affected series may waive any default or event of default with respect to the series and its consequences, except defaults or events of default regarding payment of principal, premium, if any, or interest, unless we have cured the default or event of default in accordance with the indenture. Any such waiver shall cure the default or event of default.

    Subject to the terms of the applicable indenture, if an event of default under an indenture shall occur and be continuing, the trustee will be under no obligation to exercise any of its rights or powers under such indenture at the request or direction of any of the holders of the applicable series of debt securities, unless such holders have offered the trustee reasonable indemnity or security satisfactory to it against any loss, liability or expense. The holders of a majority in principal amount of the outstanding debt securities of any series will have the right to direct the time,

    15

     


     

    method and place of conducting any proceeding for any remedy available to the trustee, or exercising any trust or power conferred on the trustee, with respect to the debt securities of that series, provided that:

    •
    the direction so given by the holders is not in conflict with any law or the applicable indenture; and
    •
    subject to its duties under the Trust Indenture Act, the trustee need not take any action that might involve it in personal liability or might be unduly prejudicial to the holders not involved in the proceeding.

    The indentures provide that if an event of default has occurred and is continuing, the trustee will be required in the exercise of its powers to use the degree of care that a prudent person would use in the conduct of its own affairs. The trustee, however, may refuse to follow any direction that conflicts with law or the indenture, or that the trustee determines is unduly prejudicial to the rights of any other holder of the relevant series of debt securities, or that would involve the trustee in personal liability. Prior to taking any action under the indentures, the trustee will be entitled to indemnification against all costs, expenses and liabilities that would be incurred by taking or not taking such action.

    A holder of the debt securities of any series will have the right to institute a proceeding under the indentures or to appoint a receiver or trustee, or to seek other remedies only if:

    •
    the holder has given written notice to the trustee of a continuing event of default with respect to that series;
    •
    the holders of at least 25% in aggregate principal amount of the outstanding debt securities of that series have made a written request and such holders have offered reasonable indemnity to the trustee or security satisfactory to it against any loss, liability or expense to be incurred in compliance with instituting the proceeding as trustee; and
    •
    the trustee does not institute the proceeding, and does not receive from the holders of a majority in aggregate principal amount of the outstanding debt securities of that series other conflicting directions within 60 days after the notice, request and offer

    These limitations do not apply to a suit instituted by a holder of debt securities if we default in the payment of the principal, premium, if any, or interest on, the debt securities.

    We will periodically file statements with the trustee regarding our compliance with specified covenants in the indentures.

    The indentures provide that if a default occurs and is continuing and is actually known to a responsible officer of the trustee, the trustee must mail to each holder notice of the default within 45 days after it occurs, unless such default has been cured. Except in the case of a default in the payment of principal or premium of, or interest on, any debt security or certain other defaults specified in an indenture, the trustee shall be protected in withholding such notice if and so long as the board of directors, the executive committee or a trust committee of directors, or responsible officers of the trustee, in good faith determine that withholding notice is in the best interests of holders of the relevant series of debt securities.

    Modification of Indenture; Waiver

    Subject to the terms of the indenture for any series of debt securities that we may issue, we and the trustee may change an indenture without the consent of any holders with respect to the following specific matters:

    •
    to fix any ambiguity, defect or inconsistency in the indenture;
    •
    to comply with the provisions described above under “Consolidation, Merger or Sale”;
    •
    to comply with any requirements of the SEC in connection with the qualification of any indenture under the Trust Indenture Act;
    •
    to add to, delete from or revise the conditions, limitations and restrictions on the authorized amount, terms or purposes of issue, authentication and delivery of debt securities, as set forth in such indenture;
    •
    to provide for the issuance of, and establish the form and terms and conditions of, the debt securities of any series as provided under “General,” to establish the form of any certifications required to be

    16

     


     

    furnished pursuant to the terms of the indenture or any series of debt securities, or to add to the rights of the holders of any series of debt securities;
    •
    to evidence and provide for the acceptance of appointment hereunder by a successor trustee;
    •
    to provide for uncertificated debt securities in addition to or in place of certificated debt securities and to make all appropriate changes for such purpose;
    •
    to add such new covenants, restrictions, conditions or provisions for the protection of the holders, and to make the occurrence, or the occurrence and the continuance, of a default in any such additional covenants, restrictions, conditions or provisions an event of default or to surrender any right or power conferred to us in the indenture; or
    •
    to change anything that does not materially adversely affect the interests of any holder of debt securities of any series in any material respect; provided that any amendment made solely to conform the provisions of the indenture to the corresponding description of the debt securities contained in the applicable prospectus or prospectus supplement shall be deemed not to adversely affect the interests of the holders of such debt securities; provided further, that in connection with any such amendment we will provide the trustee with an officers’ certificate certifying that such amendment will not adversely affect the rights or interests of the holders of such debt securities.

    In addition, under the indentures, the rights of holders of a series of debt securities may be changed by us and the trustee with the written consent of the holders of at least a majority in aggregate principal amount of the outstanding debt securities of each series that is affected. However, unless we provide otherwise in the prospectus supplement applicable to a particular series of debt securities, we and the trustee may only make the following changes with the consent of each holder of any outstanding debt securities affected:

    •
    extending the fixed maturity of the series of debt securities;
    •
    reducing the principal amount, reducing the rate of or extending the time of payment of interest, or reducing any premium payable upon the redemption of any debt securities;
    •
    reducing the percentage of debt securities, the holders of which are required to consent to any amendment, supplement, modification or waiver;
    •
    changing any of our obligations to pay additional amounts;
    •
    reducing the amount of principal of an original issue discount security or any other note payable upon acceleration of the maturity thereof;
    •
    changing the currency in which any note or any premium or interest is payable;
    •
    impairing the right to enforce any payment on or with respect to any note;
    •
    adversely changing the right to convert or exchange, including decreasing the conversion rate or increasing the conversion price of, such note, if applicable;
    •
    in the case of the subordinated indenture, modifying the subordination provisions in a manner adverse to the holders of the subordinated debt securities;
    •
    if the debt securities are secured, changing the terms and conditions pursuant to which the debt securities are secured in a manner adverse to the holders of the secured debt securities;
    •
    reducing the requirements contained in the applicable indenture for quorum or voting;
    •
    changing any of our obligations to maintain an office or agency in the places and for the purposes required by the indentures; or
    •
    modifying any of the above provisions set forth in this paragraph.

    17

     


     

    Discharge

    Each indenture provides that, subject to the terms of the indenture and any limitation otherwise provided in the prospectus supplement applicable to a particular series of debt securities, we may elect to be discharged from our obligations with respect to one or more series of debt securities, except for specified obligations, including obligations to:

    •
    register the transfer or exchange of debt securities of the series;
    •
    replace stolen, lost or mutilated debt securities of the series;
    •
    maintain paying agencies;
    •
    hold monies for payment in trust;
    •
    recover excess money held by the trustee;
    •
    compensate and indemnify the trustee; and
    •
    appoint any successor trustee.

    In order to exercise our rights to be discharged, we must deposit with the trustee money or government obligations sufficient to pay all the principal of, and any premium and interest on, the debt securities of the series on the dates payments are due.

    Form, Exchange and Transfer

    We will issue the debt securities of each series only in fully registered form without coupons and, unless we otherwise specify in the applicable prospectus supplement, in denominations of $1,000 and any integral multiple thereof. The indentures provide that we may issue debt securities of a series in temporary or permanent global form and as book-entry securities that will be deposited with, or on behalf of, The Depository Trust Company or another depositary named by us and identified in a prospectus supplement with respect to that series.

    At the option of the holder, subject to the terms of the indentures and the limitations applicable to global securities described in the applicable prospectus supplement, the holder of the debt securities of any series can exchange the debt securities for other debt securities of the same series, in any authorized denomination and of like tenor and aggregate principal amount.

    Subject to the terms of the indentures and the limitations applicable to global securities set forth in the applicable prospectus supplement, holders of the debt securities may present the debt securities for exchange or for registration of transfer, duly endorsed or with the form of transfer endorsed thereon duly executed if so required by us or the security registrar, at the office of the security registrar or at the office of any transfer agent designated by us for this purpose. Unless otherwise provided in the debt securities that the holder presents for transfer or exchange, we will impose no service charge for any registration of transfer or exchange, but we may require payment of any taxes or other governmental charges.

    We will name in the applicable prospectus supplement the security registrar, and any transfer agent in addition to the security registrar, that we initially designate for any debt securities. We may at any time designate additional transfer agents or rescind the designation of any transfer agent or approve a change in the office through which any transfer agent acts, except that we will be required to maintain a transfer agent in each place of payment for the debt securities of each series.

    If we elect to redeem the debt securities of any series, we will not be required to:

    •
    issue, register the transfer of, or exchange any debt securities of that series during a period beginning at the opening of business 15 days before the day of mailing of a notice of redemption of any debt securities that may be selected for redemption and ending at the close of business on the day of the mailing; or
    •
    register the transfer of or exchange any debt securities so selected for redemption, in whole or in part, except the unredeemed portion of any debt securities we are redeeming in part.

    18

     


     

    Information Concerning the Trustee

    The trustee, other than during the occurrence and continuance of an event of default under an indenture, undertakes to perform only those duties as are specifically set forth in the applicable indenture and is under no obligation to exercise any of the powers given it by the indentures at the request of any holder of debt securities unless it is offered reasonable security and indemnity against the costs, expenses and liabilities that it might incur. However, upon an event of default under an indenture, the trustee must use the same degree of care as a prudent person would exercise or use in the conduct of his or her own affairs.

    Payment and Paying Agents

    Unless we otherwise indicate in the applicable prospectus supplement, we will make payment of the interest on any debt securities on any interest payment date to the person in whose name the debt securities, or one or more predecessor securities, are registered at the close of business on the regular record date for the interest payment.

    We will pay principal of and any premium and interest on the debt securities of a particular series at the office of the paying agents designated by us, except that, unless we otherwise indicate in the applicable prospectus supplement, we will make interest payments by check that we will mail to the holder or by wire transfer to certain holders. Unless we otherwise indicate in the applicable prospectus supplement, we will designate the corporate trust office of the trustee in the City of New York as our sole paying agent for payments with respect to debt securities of each series. We will name in the applicable prospectus supplement any other paying agents that we initially designate for the debt securities of a particular series. We will maintain a paying agent in each place of payment for the debt securities of a particular series.

    All money we pay to a paying agent or the trustee for the payment of the principal of, or any premium or interest on any debt securities that remains unclaimed at the end of two years after such principal, premium or interest has become due and payable will be repaid to us, and the holder of the debt security thereafter may look only to us for payment thereof.

    Governing Law

    The indentures and the debt securities will be governed by and construed in accordance with the laws of the State of New York, except to the extent that the Trust Indenture Act is applicable.

    Ranking Debt Securities

    The subordinated debt securities will be unsecured and will be subordinate and junior in priority of payment to certain of our other indebtedness to the extent described in a prospectus supplement. The subordinated indenture does not limit the amount of subordinated debt securities that we may issue. It also does not limit us from issuing any other secured or unsecured debt.

    The senior debt securities will be unsecured and will rank equally in right of payment to all our other senior unsecured debt. The senior indenture does not limit the amount of senior debt securities that we may issue. It also does not limit us from issuing any other secured or unsecured debt.

    19

     


     

     

    DESCRIPTION OF WARRANTS WE MAY OFFER

    We typically issue warrants to purchase shares of our common stock to investors as part of a financing transaction, or in connection with services rendered by placement agents and outside consultants.

    We may issue warrants to purchase debt securities, preferred stock, common stock or any combination of the foregoing. We may issue warrants independently or together with any other securities we offer under a prospectus supplement. The warrants may be attached to or separate from the securities. We will issue each series of warrants under a separate warrant agreement to be entered into between a warrant agent and us. The warrant agent will act solely as our agent in connection with the warrants and will not have any obligations or relationship of agency or trust for or with holders or beneficial owners of warrants. The following outlines some of the general terms and provisions of the warrants that we may issue from time to time. When we issue warrants, we will provide the specific terms of the warrants and the applicable warrant agreement in a prospectus supplement and any related free writing prospectuses and such terms may differ from those described below. To the extent the information contained in the prospectus supplement differs from this summary description, you should rely on the information in the prospectus supplement. The following description, and any description of the warrants included in a prospectus supplement, may not be complete and is subject to and qualified in its entirety by reference to the terms and provisions of the applicable warrant agreement.

    Equity Warrants

    We will describe in the applicable prospectus supplement and any related free writing prospectuses the terms of the preferred stock warrants or common stock warrants being offered, the warrant agreement relating to the preferred stock warrants or common stock warrants and the warrant certificates representing the preferred stock warrants or common stock warrants, including, as applicable:

    •
    the title of the warrants;
    •
    the securities for which the warrants are exercisable;
    •
    the price or prices at which the warrants will be issued;
    •
    if applicable, the number of warrants issued with each share of preferred stock or share of common stock;
    •
    if applicable, the date on and after which the warrants and the related preferred stock or common stock will be separately transferable;
    •
    the date on which the right to exercise the warrants will commence, and the date on which the right will expire;
    •
    the maximum or minimum number of warrants which may be exercised at any time;
    •
    any provisions for changes to or adjustments in the exercise price or number of securities issuable upon exercise of the warrants;
    •
    information with respect to book-entry procedures, if any;
    •
    a discussion of the material U.S. federal income tax considerations applicable to exercise of the warrants; and
    •
    any other terms of the warrants, including terms, procedures and limitations relating to the exchange and exercise of the warrants.

    Unless otherwise provided in the applicable warrant agreement and corresponding prospectus supplement or any related free writing prospectuses, holders of equity warrants will not be entitled, by virtue of being such holders, to vote, consent, receive dividends, receive notice as stockholders with respect to any meeting of stockholders for the election of our directors or any other matter, or to exercise any rights whatsoever as stockholders.

    20

     


     

    Except as provided in the applicable warrant agreement and corresponding prospectus supplement or any related free writing prospectuses, the exercise price payable and the number of shares of common stock or preferred stock purchasable upon the exercise of each warrant will be subject to adjustment in certain events, including the issuance of a stock dividend to holders of common stock or preferred stock or a stock split, reverse stock split, combination, subdivision or reclassification of common stock or preferred stock. In lieu of adjusting the number of shares of common stock or preferred stock purchasable upon exercise of each warrant, we may elect to adjust the number of warrants. Unless otherwise provided in the applicable warrant agreement and corresponding prospectus supplement or any related free writing prospectuses, no adjustments in the number of shares purchasable upon exercise of the warrants will be required until all cumulative adjustments require an adjustment of at least 1% thereof. No fractional shares will be issued upon exercise of warrants, but we will pay the cash value of any fractional shares otherwise issuable. Notwithstanding the foregoing, except as otherwise provided in the applicable warrant agreement and corresponding prospectus supplement or any related free writing prospectuses, in case of any consolidation, merger, or sale or conveyance of our property as an entirety or substantially as an entirety, the holder of each outstanding warrant will have the right to the kind and amount of shares of stock and other securities and property, including cash, receivable by a holder of the number of shares of common stock or preferred stock into which each warrant was exercisable immediately prior to the particular triggering event.

    Debt Warrants

    We will describe in the applicable prospectus supplement and any related free writing prospectuses the terms of the debt warrants being offered, the warrant agreement relating to the debt warrants and the debt warrant certificates representing the debt warrants, including, as applicable:

    •
    the title of the debt warrants;
    •
    the aggregate number of the debt warrants;
    •
    the price or prices at which the debt warrants will be issued;
    •
    the designation, aggregate principal amount and terms of the debt securities purchasable upon exercise of the debt warrants, and the procedures and conditions relating to the exercise of the debt warrants;
    •
    the designation and terms of any related debt securities with which the debt warrants are issued, and the number of the debt warrants issued with each security;
    •
    the date, if any, on and after which the debt warrants and the related debt securities will be separately transferable;
    •
    the principal amount of debt securities purchasable upon exercise of each debt warrant, and the price at which the principal amount of the debt securities may be purchased upon exercise;
    •
    the date on which the right to exercise the debt warrants will commence, and the date on which the right will expire;
    •
    the maximum or minimum number of the debt warrants that may be exercised at any time;
    •
    information with respect to book-entry procedures, if any;
    •
    changes to or adjustments in the exercise price of the debt warrants;
    •
    a discussion of the material U.S. federal income tax considerations applicable to the exercise of the debt warrants; and
    •
    any other terms of the debt warrants and terms, procedures and limitations relating to the exercise of the debt warrants.

    As may be permitted under the warrant agreement, holders may exchange debt warrant certificates for new debt warrant certificates of different denominations, and may exercise debt warrants at the corporate trust office of the warrant agent or any other office indicated in the applicable prospectus supplement and any related free writing prospectuses. Prior to the exercise of their debt warrants, holders of debt warrants will not have any of the rights of holders of the securities purchasable upon the exercise, and will not be entitled to payments of principal, premium or interest on the securities purchasable upon the exercise, of debt warrants.

    21

     


     

    Exercise of Warrants

    Each warrant will entitle the holder of the warrant to purchase for cash at the exercise price provided in the applicable warrant agreement and corresponding prospectus supplement or any related free writing prospectuses the principal amount of debt securities or shares of preferred stock or shares of common stock being offered. Holders may exercise warrants at any time up to the close of business on the expiration date provided in the applicable warrant agreement and corresponding prospectus supplement or any related free writing prospectuses. After the close of business on the expiration date, unexercised warrants are void.

    Holders may exercise warrants as described in the applicable warrant agreement and corresponding prospectus supplement or any free writing prospectuses relating to the warrants being offered. Upon receipt of payment and the warrant certificate properly completed and duly executed at the corporate trust office of the warrant agent or any other office indicated in the applicable warrant agreement and corresponding prospectus supplement or any related free writing prospectuses, we will, as soon as practicable, forward the debt securities, shares of preferred stock or shares of common stock purchasable upon the exercise of the warrant. If less than all of the warrants represented by the warrant certificate are exercised, we will issue a new warrant certificate for the remaining warrants.

    DESCRIPTION OF RIGHTS WE MAY OFFER

    We may issue rights to purchase shares of our common stock, preferred stock, or warrants in one or more series. Rights may be issued independently or together with any other offered security and may or may not be transferable by the person purchasing or receiving the subscription rights. In connection with any rights offering to our stockholders, we may enter into a standby underwriting arrangement with one or more underwriters pursuant to which the underwriters will purchase any of the offered securities remaining unsubscribed after the expiration of the rights offering. In connection with a rights offering to our stockholders, we will distribute certificates evidencing the rights and an applicable prospectus supplement to our stockholders on the record date that we set for receiving rights in the rights offering. An applicable prospectus supplement will describe the following terms of rights in respect of which this prospectus is being delivered:

    •
    the title of the rights;
    •
    the securities for which the rights are exercisable;
    •
    the exercise price for the rights;
    •
    the date of determining the security holders entitled to the rights distribution;
    •
    the number of the rights issued to each security holder;
    •
    the extent to which the rights are transferable;
    •
    if applicable, a discussion of the material United States federal income tax considerations applicable to the issuance or exercise of the rights;
    •
    the date on which the right to exercise the rights shall commence, and the date on which the rights shall expire (subject to any extension);
    •
    the conditions to completion of the rights offering;
    •
    any provisions for changes to or adjustments in the exercise price or number of securities issuable upon exercise of the rights;
    •
    the extent to which the rights include an over-subscription privilege with respect to unsubscribed securities;
    •
    if applicable, the material terms of any standby underwriting or other purchase arrangement that we may enter into in connection with the rights offering; and
    •
    any other terms of the rights, including terms, procedures and limits relating to the exchange or exercise of the rights.

    22

     


     

    Each right will entitle the holder to purchase an amount of securities for cash, at the exercise price. Rights may be exercised at any time up to the close of business on the expiration date of the rights. After the close of business on the expiration date, all unexercised rights will become void. The manner in which rights may be exercised will be described in an applicable prospectus supplement. We may, but are not be required to, permit the exercise of rights through the delivery of a notice of guaranteed delivery from a bank, a trust company, or a Nasdaq member guaranteeing delivery of (i) payment of the exercise price for the securities for which the rights are being exercised, and (ii) a properly completed and executed rights certificate. The notice of guaranteed delivery must be received by the rights agent before the expiration of the rights, and the rights agent will not honor a notice of guaranteed delivery unless a properly completed and executed rights certificate and full payment for the securities being purchased are received by the rights agent by the close of business on the third business day after the expiration time of the rights. Upon receipt of payment and the proper completion and due execution of the rights certificate at the designated office of the rights agent or any other office indicated in an applicable prospectus supplement, we or the transfer agent will forward, as soon as practicable, the securities purchased upon the exercise of the rights. We may determine to offer any unsubscribed offered securities directly to persons other than stockholders, to or through agents, underwriters or dealers or through a combination of the methods, including pursuant to standby underwriting arrangements, as set forth in an applicable prospectus supplement.

    DESCRIPTION OF UNITS WE MAY OFFER

    The following description, together with the additional information we may include in any applicable prospectus supplements and free writing prospectuses, summarizes the material terms and provisions of the units that we may offer under this prospectus. While the terms we have summarized below will apply generally to any units that we may offer under this prospectus, we will describe the particular terms of any series of units in more detail in the applicable prospectus supplement. The terms of any units offered under a prospectus supplement may differ from the terms described below. However, no prospectus supplement will fundamentally change the terms that are set forth in this prospectus or offer a security that is not registered and described in this prospectus at the time of its effectiveness.

    We will file as exhibits to the registration statement of which this prospectus is a part, or will incorporate by reference from a current report on Form 8-K that we file with the SEC, the form of unit agreement that describes the terms of the series of units we are offering, and any supplemental agreements, before the issuance of the related series of units. The following summaries of material terms and provisions of the units are subject to, and qualified in their entirety by reference to, all the provisions of the unit agreement and any supplemental agreements applicable to a particular series of units. We urge you to read the applicable prospectus supplements related to the particular series of units that we sell under this prospectus, as well as the complete unit agreement and any supplemental agreements that contain the terms of the units.

    General

    We may issue units comprised of one or more shares of common stock, shares of preferred stock, debt securities, warrants and/or rights in any combination. Each unit will be issued so that the holder of the unit is also the holder of each security included in the unit. Thus, the holder of a unit will have the rights and obligations of a holder of each included security. The unit agreement under which a unit is issued may provide that the securities included in the unit may not be held or transferred separately, at any time or at any time before a specified date.

    We will describe in the applicable prospectus supplement the terms of the series of units, including:

    •
    the designation and terms of the units and of the securities comprising the units, including whether and under what circumstances those securities may be held or transferred separately;
    •
    any provisions of the governing unit agreement that differ from those described below; and
    •
    any provisions for the issuance, payment, settlement, transfer or exchange of the units or of the securities comprising the units.

    The provisions described in this section, as well as those described under “Description of Capital Stock,” “Description of Preferred Stock,” “Description of Debt Securities,” “Description of Warrants” and “Description of

    23

     


     

    Rights” will apply to each unit and to any common stock, preferred stock, debt security or warrant included in each unit, respectively.

    Issuance in Series

    We may issue units in such amounts and in numerous distinct series as we determine.

    Enforceability of Rights by Holders of Units

    Each unit agent will act solely as our agent under the applicable unit agreement and will not assume any obligation or relationship of agency or trust with any holder of any unit. A single bank or trust company may act as unit agent for more than one series of units. A unit agent will have no duty or responsibility in case of any default by us under the applicable unit agreement or unit, including any duty or responsibility to initiate any proceedings at law or otherwise, or to make any demand upon us. Any holder of a unit may, without the consent of the related unit agent or the holder of any other unit, enforce by appropriate legal action its rights as holder under any security included in the unit.

    We, the unit agents and any of their agents may treat the registered holder of any unit certificate as an absolute owner of the units evidenced by that certificate for any purpose and as the person entitled to exercise the rights attaching to the units so registered, despite any notice to the contrary.

    24

     


     

    PLAN OF DISTRIBUTION

    We may sell the securities being offered by us in this prospectus pursuant to underwritten public offerings, negotiated transactions, block trades, in transactions as further described below, any combination of such methods or any other methods permitted pursuant to applicable law. We may sell the securities to or through underwriters, dealers, agents or directly to one or more purchasers. We and our agents reserve the right to accept and to reject, in whole or in part, any proposed purchase of securities. A prospectus supplement or post-effective amendment, which we will file each time we effect an offering of any securities, will provide the names of any underwriters, dealers or agents, if any, involved in the sale of such securities, and any applicable fees, commissions, or discounts to which such persons shall be entitled to in connection with such offering.

    We and our agents, dealers and underwriters, as applicable, may sell the securities being offered by us in this prospectus from time to time in one or more transactions at:

    •
    a fixed price or prices, which may be changed;
    •
    market prices prevailing at the time of sale;
    •
    prices related to such prevailing market prices;
    •
    varying prices determined at the time of sale; or
    •
    negotiated prices.

    We may determine the price or other terms of the securities offered under this prospectus by use of an electronic auction. We will describe how any auction will determine the price or any other terms, how potential investors may participate in the auction and the nature of the underwriters’ obligations, in the applicable prospectus supplement or amendment.

    We may solicit directly offers to purchase securities. We may also designate agents from time to time to solicit offers to purchase securities. Any agent that we designate, who may be deemed to be an underwriter as such term is defined in the Securities Act, may then resell such securities to the public at varying prices to be determined by such agent at the time of resale.

    We may engage in at the market offerings of the Company’s common stock as defined in Rule 415(a)(4) under the Securities Act. An at the market offering is an offering of our common stock at other than a fixed price, and is conducted to or through a market maker. We shall name any underwriter or agent that the Company engages for an at the market offering in a post-effective amendment to the registration statement containing this prospectus. In the related prospectus supplement, we shall also describe any additional details of the Company’s arrangement with such underwriter or agent, including commissions or fees paid or discounts offered by the Company, and whether such underwriter is acting as principal or agent.

    If we use underwriters to sell securities, we will enter into an underwriting agreement with the underwriters at the time of the sale to them, which agreement shall be filed as an exhibit to the related prospectus supplement. Underwriters may also receive commissions from purchasers of the securities. Underwriters may also use dealers to sell securities. In such an event, the dealers may receive compensation in the form of discounts, concessions or commissions from the underwriters and/or commissions from the purchasers for whom they may act as agents.

    Under agreements that they may enter into with us, underwriters, dealers, agents and other persons may be entitled to (i) indemnification by the Company against certain civil liabilities, including liabilities under the Securities Act or (ii) contribution with respect to payments which they may be required to make in respect of such liabilities. Underwriters and agents may engage in transactions with, or perform services for, us in the ordinary course of business.

    If so indicated in the applicable prospectus supplement, we may authorize underwriters, dealers or other persons to solicit offers by certain institutions to purchase the securities offered by us under this prospectus pursuant to contracts providing for payment and delivery on a future date or dates. The obligations of any purchaser under these contracts will be subject only to those conditions described in the applicable prospectus supplement, and the prospectus supplement will set forth the price to be paid for securities pursuant to those contracts and the commissions payable for solicitation of the contracts.

    25

     


     

    Any underwriter may engage in over-allotment, stabilizing and syndicate short covering transactions and penalty bids in accordance with Regulation M of the Exchange Act. Over-allotment involves sales in excess of the offering size, which create a short position. Stabilizing transactions involve bids to purchase the underlying security so long as the stabilizing bids do not exceed a specified maximum. Syndicate short covering transactions involve purchases of securities in the open market after the distribution has been completed in order to cover syndicate short positions. Penalty bids permit the underwriters to reclaim selling concessions from dealers when the securities originally sold by such dealers are purchased in covering transactions to cover syndicate short positions. These transactions may cause the price of the securities sold in an offering to be higher than it would otherwise be. These transactions, if commenced, may be discontinued by the underwriters at any time without notice.

    Our common stock is quoted on The Nasdaq Capital Market under the trading symbol “SABS” The other securities are not listed on any securities exchange or other stock market and, unless the Company states otherwise in the applicable prospectus supplement, the Company does not intend to apply for listing of the other securities on any securities exchange or other stock market. Any underwriters to whom we sell securities for public offering and sale may make a market in the securities that they purchase, but the underwriters will not be obligated to do so and may discontinue any market making at any time without notice. Accordingly, the Company gives you no assurance as to the development or liquidity of any trading market for the securities.

    The anticipated date of delivery of the securities offered hereby will be set forth in the applicable prospectus supplement relating to each offering.

    In order to comply with certain state securities laws, if applicable, the securities may be sold in such jurisdictions only through registered or licensed brokers or dealers. In certain states, the securities may not be sold unless the securities have been registered or qualified for sale in such state or an exemption from regulation or qualification is available and is complied with. Sales of securities must also be made by the Company in compliance with all other applicable state securities laws and regulations.

    We shall pay all expenses of the registration of the securities.

    EXPERTS

    The consolidated financial statements of SAB Biotherapeutics, Inc. as of and for the years ended December 31, 2024 and 2023, included in our Annual Report on Form 10-K for the year ended December 31, 2024, have been audited by EisnerAmper LLP, independent registered public accounting firm, as set forth in their report (which report includes an explanatory paragraph regarding the existence of substantial doubt about our ability to continue as a going concern), and have been incorporated herein by reference in reliance upon such report given on the authority of such firm as experts in accounting and auditing.

    LEGAL MATTERS

    If and when the securities being registered hereunder are issued, the validity of such issuance will be passed upon for the Company by Dentons US LLP, New York, New York.

    WHERE YOU CAN FIND MORE INFORMATION

    This prospectus is part of the registration statement on Form S-3 we filed with the SEC under the Securities Act and does not contain all the information set forth in the registration statement. Whenever a reference is made in this prospectus to any of our contracts, agreements or other documents, the reference may not be complete and you should refer to the exhibits that are a part of the registration statement or the exhibits to the reports or other documents incorporated by reference into this prospectus for a copy of such contract, agreement or other document. Because we are subject to the information and reporting requirements of the Exchange Act, we file annual, quarterly and current reports, proxy statements and other information with the SEC. Our SEC filings are available to the public over the Internet at the SEC’s website at http://www.sec.gov.

    26

     


     

    You may also access our SEC filings at our website www.sab.bio. Our website and the information contained on, or that can be accessed through, our website will not be deemed to be incorporated by reference in, and are not considered part of, this prospectus. You should not rely on our website or any such information in making your decision whether to purchase our securities.

    27

     


     

    INFORMATION INCORPORATED BY REFERENCE

    The SEC allows us to incorporate by reference into this prospectus the information contained in other documents we file with the SEC, which means that we can disclose important information to you by referring you to those documents. Any statement contained in any document incorporated or deemed to be incorporated by reference herein shall be deemed to be modified or superseded, for purposes of this prospectus, to the extent that a statement contained in or omitted from this prospectus, or in any other subsequently filed document that also is or is deemed to be incorporated by reference herein, modifies or supersedes such statement. Any such statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this prospectus. We incorporate by reference the documents listed below which have been filed by us:

     

    •
    Our Annual Report on Form 10-K for the fiscal year ended December 31, 2024, filed with SEC on March 31, 2025;
    •
    Our Quarterly Reports on Form 10-Q for the fiscal periods ended March 31, 2025, June 30, 2025, and September 30, 2025, filed with the SEC on May 9, 2025, August 7, 2025, and November 14, 2025, respectively;
    •
    Our Current Reports on Form 8-K filed with the SEC on January 28, 2025, February 5, 2025, July 17, 2025, July 21, 2025, September 26, 2025, September 30, 2025, and December 29, 2025; and
    •
    The description of our common stock and warrants in our registration statement on Form 8-A filed with the SEC on January 8, 2021, including any amendments or reports filed for the purpose of updating such description.

    In addition, all documents subsequently filed by us pursuant to Sections 13(a), 13(c), 14 and 15(d) of the Exchange Act on or after the date of this prospectus and prior to the termination of the offering of the securities to which this prospectus relates, shall be deemed to be incorporated by reference in this prospectus and to be a part hereof from the date of filing of such documents. However, any documents or portions thereof, whether specifically listed above or filed in the future, that are not deemed “filed” with the SEC, including without limitation any information furnished pursuant to Item 2.02 or 7.01 of Form 8-K or certain exhibits furnished pursuant to Item 9.01 of Form 8-K, shall not be deemed to be incorporated by reference in this prospectus.

    Any statement in a document incorporated or deemed to be incorporated by reference herein shall be deemed to be modified or superseded for the purposes of this prospectus to the extent that a statement contained herein or in any other subsequently filed document which also is incorporated or deemed to be incorporated by reference herein modifies or supersedes such statement. Any statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this prospectus.

    You can request a copy of these filings, at no cost, by writing or telephoning us at the following address or telephone number:

    SAB Biotherapeutics, Inc.

    777 W 41st St., Suite 401

    Miami Beach, Florida 33140

    Attn: Corporate Secretary

    (305)-845-2813

    * * *

    28

     


     

     

    The information in this prospectus supplement is not complete and may be changed. The Registrant may not sell these securities until the registration statement filed with the Securities and Exchange Commission is effective. This prospectus supplement is not an offer to sell these securities and it is not soliciting an offer to buy these securities in any state where an offer or sale is not permitted.

    SUBJECT TO COMPLETION, DATED DECEMBER 29, 2025

    PROSPECTUS SUPPLEMENT

    Up to $75,000,000 of

    Common Stock

     

    img32523786_1.jpg

     

    We have entered into a sales agreement (the “Sales Agreement”) with UBS Securities LLC (the “agent” or the “sales agent”), relating to shares of our common stock, par value $0.0001 per share, offered by this prospectus supplement. In accordance with the terms of the Sales Agreement, we may offer and sell shares of our common stock having an aggregate offering price of up to $75,000,000 from time to time through the agent pursuant to this prospectus supplement

    Our common stock is quoted on The Nasdaq Capital Market under the trading symbol “SABS.” On December 26, 2025, the last reported sale price of our common stock was $3.78 per share.

    Sales of our common stock, if any, under this prospectus supplement may be made in sales deemed to be “at the market offerings” as defined in Rule 415(a)(4) under the Securities Act of 1933, as amended (the “Securities Act”). The agent is not required to sell any specific number or dollar amount of securities, but will act as sales agent using commercially reasonable efforts consistent with its normal trading and sales practices, on mutually agreed terms between the agent and us. There is no arrangement for funds to be received in any escrow, trust or similar arrangement.

    The compensation to the sales agent for sales of common stock sold pursuant to the Sales Agreement will be up to 3.0% of the gross proceeds of any shares of common stock sold under the Sales Agreement. In connection with the sale of the common stock on our behalf, the sales agent may be deemed to be “underwriters” within the meaning of the Securities Act and the compensation of the sales agent may be deemed to be underwriting commissions or discounts. We have also agreed to provide indemnification and contribution to the sales agent with respect to certain liabilities, including liabilities under the Securities Act or the Securities Exchange Act of 1934, as amended (the “Exchange Act”). See “Plan of Distribution” beginning on page S-12 for additional information regarding compensation payable to the agent.

    We are an “emerging growth company” as defined in Section 2(a) of the Securities Act of 1933, as amended the “Securities Act”) and a “smaller reporting company” as defined under Rule 405 of the Securities Act, and as such, we have elected to comply with certain reduced public company reporting requirements. See “Prospectus Supplement Summary— Implications of Being an Emerging Growth Company and a Smaller Reporting Company” on page S-1 of this prospectus.

    Investing in our common stock involves significant risks. You should review carefully the “Risk Factors” on page S-7 of this prospectus supplement and page 7 of the accompanying base prospectus, and in the documents

     


     

    incorporated by reference in this prospectus supplement and accompanying base prospectus before investing in our common stock.

    Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or passed upon the adequacy or accuracy of this prospectus supplement. Any representation to the contrary is a criminal offense.

    UBS Investment Bank

    The date of this prospectus supplement is , 2025

     


     

    TABLE OF CONTENTS

    Prospectus Supplement

     

    Page

    ABOUT THIS PROSPECTUS SUPPLEMENT

     

    ii

    PROSPECTUS SUPPLEMENT SUMMARY

     

    1

    THE OFFERING

     

    3

    SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

     

    5

    RISK FACTORS

     

    7

    USE OF PROCEEDS

     

    9

    DILUTION / CAPITALIZATION

     

    10

    PLAN OF DISTRIBUTION

     

    12

    EXPERTS

     

    14

    LEGAL MATTERS

     

    14

    WHERE YOU CAN FIND MORE INFORMATION

     

    14

    INFORMATION INCORPORATED BY REFERENCE

     

    14

    Prospectus

     

    Page

    ABOUT THIS PROSPECTUS

     

    1

    TRADEMARKS

     

    1

    PROSPECTUS SUMMARY

     

    2

    SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

     

    5

    RISK FACTORS

     

    7

    USE OF PROCEEDS

     

    8

    DESCRIPTION OF CAPITAL STOCK WE MAY OFFER

     

    9

    DESCRIPTION OF DEBT SECURITIES WE MAY OFFER

     

    13

    DESCRIPTION OF WARRANTS WE MAY OFFER

     

    20

    DESCRIPTION OF RIGHTS WE MAY OFFER

     

    22

    DESCRIPTION OF UNITS WE MAY OFFER

     

    23

    PLAN OF DISTRIBUTION

     

    25

    EXPERTS

     

    26

    LEGAL MATTERS

     

    26

    WHERE YOU CAN FIND MORE INFORMATION

     

    26

    INFORMATION INCORPORATED BY REFERENCE

     

    28

     

    i


     

     

    ABOUT THIS PROSPECTUS SUPPLEMENT

    This prospectus supplement and the accompanying base prospectus are part of a registration statement on Form S-3 that we filed with the Securities and Exchange Commission (the “SEC”) utilizing a “shelf” registration process. Under this shelf registration process, we may from time to time offer shares of our common stock having an aggregate offering price of up to $75,000,000 under this prospectus supplement at prices and on terms to be determined by market conditions at the time of each such offering.

    This prospectus supplement is not complete without, and may not be utilized except in connection with, the accompanying base prospectus and any amendments to such prospectus. This prospectus supplement provides you with specific information regarding the terms of this offering and our common stock, and also adds to and updates information contained in the accompanying base prospectus and the documents incorporated by reference in this prospectus supplement and the accompanying base prospectus. The accompanying base prospectus provides more general information, some of which does not apply to this offering of our common stock.

    Before buying any of the common stock that we are offering, we urge you to carefully read this prospectus supplement and all of the information incorporated by reference herein, as well as the additional information described under the headings “Where You Can Find More Information” and “Information Incorporated by Reference.” These documents contain important information that you should consider when making your investment decision.

    To the extent there is a conflict between the information contained in this prospectus supplement, on the one hand, and the information contained in any document incorporated by reference in this prospectus supplement that was filed with the SEC before the date of this prospectus supplement, on the other hand, you should rely on the information in this prospectus supplement. If any statement in one of these documents is inconsistent with a statement in another document having a later date—for example, a document incorporated by reference in this prospectus supplement—the statement in the document having the later date modifies or supersedes the earlier statement.

    We further note that the representations, warranties and covenants made by us in any agreement that is filed as an exhibit to any document that is incorporated by reference herein were made solely for the benefit of the parties to such agreement, including, in some cases, for the purpose of allocating risk among the parties to such agreement, and should not be deemed to be a representation, warranty or covenant to you. Moreover, such representations, warranties or covenants were accurate only as of the date when made. Accordingly, such representations, warranties and covenants should not be relied on as accurately representing the current state of our affairs.

    We have not, and the sales agent has not, authorized anyone to provide you with any information other than that contained or incorporated by reference in this prospectus supplement and in the accompanying base prospectus or in any related free writing prospectus that we authorize for use in connection with this offering and to which we have referred you. We take no responsibility for, and can provide no assurance as to the reliability of, any other information that others may give you. You should assume that the information appearing in this prospectus supplement, the documents incorporated by reference and the accompanying base prospectus or free writing prospectus is accurate only as of their respective dates. Our business, financial condition, results of operations and prospects may have changed materially since those dates.

    This prospectus supplement does not constitute an offer to sell or the solicitation of an offer to buy any securities other than the securities described in this prospectus supplement or an offer to sell or the solicitation of an offer to buy such securities in any circumstances in which such offer or solicitation is unlawful.

    In this prospectus supplement, unless the context suggests otherwise, references to “SAB Biotherapeutics,” “SAB,” the “Company,” “we,” “us” and “our” refer to SAB Biotherapeutics, Inc.

     

    ii


     

     

    PROSPECTUS SUPPLEMENT SUMMARY

    This prospectus supplement summary highlights certain information about us and selected information contained elsewhere in or incorporated by reference into this prospectus supplement. This prospectus supplement summary is not complete and does not contain all of the information that you should consider before making an investment decision. For a more complete understanding of the Company, you should read and consider carefully the more detailed information included or incorporated by reference in this prospectus supplement and any applicable prospectus supplement or amendment, including the factors described under the heading “Risk Factors,” beginning on page S-7 of this prospectus supplement, as well as the information incorporated by reference in this prospectus supplement and the accompanying prospectus, before making an investment decision.

    Business Overview

    We are a clinical-stage biopharmaceutical company focused on developing multi-specific, high-potency, human immunoglobulin G (“hIgGs”), without the need for human donors or convalescent plasma, to treat and prevent autoimmune disorders. Our programs are based on mechanisms of action that have achieved proof-of-concept in clinical trials in indications with significant unmet medical needs. We are focused on developing product candidates for disease targets where a differentiated approach has the greatest potential to be either first-in-class against novel targets or best-in-class against complex targets to treat diseases, including type 1 diabetes (“T1D”) and other autoimmune disorders. Our internally discovered antibodies are multi-specific, meaning they are comprised of multiple hIgG and can bind to multiple sites on targeted immunogens, making them ideally suited to address the complexities associated with many immune-mediated disorders. Our proprietary platform holds the potential to generate additional novel therapeutic candidates to expand our pipeline, utilizing the human immune response to generate the optimal repertoire of hIgG for drug targets of interest. We believe it is the only technology capable of producing disease-targeted, hIgG in large quantities without the need for human plasma donors. We have optimized genetic engineering in the development of transchromosomic cattle, or Tc Bovine, which produce hIgG. Our engineering of our production platform drives IgG1 production across our pipeline. In addition, this differentiated approach using polyclonal antibodies has no biosimilar pathway, which provides a significant barrier to competitive polyclonal approaches.

    SAB-142: Our Lead Product Candidate

    Our wholly owned lead product candidate, SAB-142 is a human anti-thymocyte globulin (“hATG”) focused on preventing or delaying the progression of Stage 3 T1D. SAB-142 is a first-in-class, multi-target hATG treatment designed to provide superior efficacy and safety in delaying the onset or progression of T1D. SAB-142 is expected to reduce autoimmune β-cell destruction and delay progression or onset of T1D in patients with Stage 3 or Stage 2 T1D, respectively. The mechanism of action of SAB-142 has been clinically validated in numerous clinical trials with a rabbit anti-thymocyte globulin (“rATG”), and rATG has demonstrated in multiple clinical trials the ability to slow disease progression in patients with new or recent onset of Stage 3 T1D. In addition, data from more than 700 human subjects treated with antibodies produced by our platform support the expectation of a zero-serum sickness rate and a zero incidence of neutralizing anti-drug antibodies (“ADA”) within the upcoming SAB-142 clinical trials.

    We received an Investigational New Drug (“IND”) clearance from the FDA in May 2024 and announced positive topline data from our Phase 1 clinical trial of SAB-142 in January 2025. We are advancing SAB-142 into a Phase 2b clinical trial called the SAFEGUARD study. On May 29, 2025, the Company held a constructive Type B meeting with the FDA. The meeting followed positive topline data from a Phase 1 single-ascending dose trial in healthy volunteers for SAB-142. The primary discussion centered on questions related to all aspects of SAB-142’s Phase 2b SAFEGUARD clinical trial design and chemistry, manufacturing, and controls processes. The FDA provided clear, constructive, and actionable guidance during the discussion leading to alignment on the design and advancement of our Phase 2b SAFEGUARD study. SAB confirmed its intent with the FDA to utilize the data from this study as supportive evidence for future regulatory approval.

    S-1


     

    Other Immunology Indications

    T- and B-cells are multifunctional lymphocytes whose dysregulation was shown to have a central role in the pathogenesis of more than 80 autoimmune diseases, including T1D, systemic lupus erythematosus (“SLE”), rheumatoid arthritis (“RA”), multiple sclerosis (“MS”) and celiac disease. The therapeutic success to date of lymphocyte-mediating therapies in variety of autoimmune diseases and our in vivo and in vitro pre-clinical and Phase 1 work from SAB-142 in T1D will support direct progression into Phase 2 clinical trials in other autoimmune indications.

    Since the commencement of our operations, we have devoted substantially all of our resources to research and development activities, organizing and staffing our company, business planning, raising capital, establishing and maintaining our intellectual property portfolio, conducting preclinical studies and clinical trials and providing general and administrative support for these operations.

    Corporate Information

    We were incorporated in the State of Delaware on November 12, 2020, as a special purpose acquisition company under the name Big Cypress Acquisition Corp. (“BCYP”). On January 14, 2021, BCYP completed its initial public offering. On October 22, 2021, BCYP consummated a business combination with SAB Biotherapeutics, Inc. (the “Business Combination”), which changed its name to SAB Sciences, Inc. In connection with the closing of the business combination, BCYP changed its name to SAB Biotherapeutics, Inc. and SAB Sciences, Inc. became a subsidiary of SAB Biotherapeutics, Inc.

    Our principal executive offices are located at 777 W 41st St., Suite 401 Miami Beach, Florida 33140, and our telephone number is (305)-845-2813. Our website is located at https://www.sab.bio. We do not incorporate by reference into this prospectus the information on, or accessible through, our website. Our common stock trades on The Nasdaq Capital Market under the symbol “SABS”.

    Implications of Being an Emerging Growth Company and a Smaller Reporting Company

    We are an “emerging growth company,” as defined in Section 2(a) of the Securities Act, and therefore we intend to take advantage of certain exemptions from various public company reporting requirements, including not being required to have our internal control over financial reporting audited by our independent registered public accounting firm pursuant to Section 404(b) of the Sarbanes-Oxley Act of 2002, reduced disclosure obligations regarding executive compensation in this prospectus, our periodic reports and our proxy statements and exemptions from the requirements of holding a nonbinding advisory vote on executive compensation and any golden parachute payments not previously approved. We will remain an emerging growth company until the earliest of (i) the last day of the fiscal year in which the market value of our common stock that is held by non-affiliates equals or exceeds $700 million as of the end of that year’s second fiscal quarter, (ii) the last day of the fiscal year in which we have total annual gross revenue of $1.235 billion or more during such fiscal year (as indexed for inflation), (iii) the date on which we have issued more than $1 billion in non-convertible debt in the prior three-year period or (iv) December 31, 2026.

    We are also a “smaller reporting company” as defined under the Securities Act and the Securities Exchange Act of 1934, as amended (the “Exchange Act”). We may continue to be a smaller reporting company so long as either (i) the market value of shares of our common stock held by non-affiliates is less than $250 million or (ii) our annual revenue was less than $100 million during the most recently completed fiscal year and the market value of shares of our common stock held by non-affiliates is less than $700 million. If we are a smaller reporting company at the time we cease to be an emerging growth company, we may continue to rely on exemptions from certain disclosure requirements that are available to smaller reporting companies. Specifically, as a smaller reporting company, we may choose to present only the two most recent fiscal years of audited financial statements in our Annual Report on Form 10-K and have reduced disclosure obligations regarding executive compensation, and, similar to emerging growth companies, if we are a smaller reporting company under the requirements of (ii) above, we would not be required to obtain an attestation report on internal control over financial reporting issued by our independent registered public accounting firm.

    S-2


     

     

     

     

    THE OFFERING

    Common stock offered by us pursuant to this prospectus supplement

    Shares of our common stock having an aggregate offering price of up to $75,000,000.

    Common stock to be outstanding after this offering

    Up to 67,389,928 shares, assuming sales of 19,841,269 shares of our common stock in this offering at an offering price of $3.78 per share, which was the last reported sale price of our common stock on The Nasdaq Capital Market on December 26, 2025. The actual number of shares issued will vary depending on the sales price under this offering.

    Manner of Offering

    This is an “at the market offering” as defined in Rule 415(a)(4) under the Securities Act, that may be made from time to time on The Nasdaq Capital Market, the existing trading market for our common stock, through the sales agent. See “Plan of Distribution” on page S-12 of this prospectus supplement.

    Use of Proceeds

    We currently intend to use the net proceeds, if any, from the sale of shares of our common stock to support pipeline development and for working capital and other general corporate purposes. See “Use of Proceeds” on page S-9 of this prospectus supplement.

    Risk Factors

    Investing in our securities involves a high degree of risk. See the information contained in or incorporated by reference under the heading “Risk Factors” beginning on page S-7 of this prospectus supplement and page 7 of the accompanying base prospectus, and under similar headings in the documents incorporated by reference into this prospectus supplement and the accompanying base prospectus.

    Common Stock Nasdaq Capital Market Symbol

    “SABS”.

    The number of shares of our common stock outstanding after this offering is based on 47,548,659 shares of our common stock outstanding as of September 30, 2025 and excludes:

    •
    2,233,407 shares issuable upon exercise of exercise of outstanding common stock purchase warrants with a weighted average exercise price of $36.84;
    •
    6,749,170 shares issuable upon exercise of our issued and outstanding stock options with a weighted-average exercise price of $4.06 per share;
    •
    18,818 shares issuable for restricted stock grants outstanding;
    •
    25,845,059 shares reserved for issuance, but not subject to outstanding options or restricted stock awards, under our incentive equity plans;
    •
    32,613,047 shares reserved for issuance under our employee stock purchase plan;

    S-3


     

    •
    4,617,681 shares issuable upon conversion of our Series A Convertible Preferred Stock, par value $0.0001 per share (“Series A Preferred Stock”), including shares of Series A Preferred Stock issuable upon exercise of Series A Preferred Stock purchase warrants; and
    •
    213,855,800 shares issuable upon conversion of our Series B Convertible Preferred Stock, par value $0.0001 per share (“Series B Preferred Stock”), including shares of Series B Preferred Stock issuable upon exercise of Series B Preferred Stock purchase warrants.

     

    S-4


     

     

    SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

    This prospectus and certain information incorporated herein by reference contains forward-looking statements that involve risks and uncertainties. Our actual results could differ materially from those discussed in the forward-looking statements. The statements contained in this prospectus that are not purely historical are forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended (the “Securities Act”), and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). Forward-looking statements are often identified by the use of words such as, but not limited to, “anticipate,” “believe,” “can,” “continue,” “could,” “estimate,” “expect,” “intend,” “may,” “plan,” “project,” “seek,” “should,” “strategy,” “target,” “will,” “would” and similar expressions or variations intended to identify forward-looking statements. These statements are based on the beliefs and assumptions of our management based on information currently available to management. Such forward-looking statements are subject to risks, uncertainties and other important factors that could cause actual results and the timing of certain events to differ materially from future results expressed or implied by such forward-looking statements.

    Factors that might cause these differences include the following:

    •
    the success, cost and timing of our product development activities and clinical trials, including statements regarding our plans for clinical development of our product candidates, the initiation and completion of clinical trials and related preparatory work and the expected timing of the availability of results of clinical trials;
    •
    our ability to recruit and enroll suitable patients in our clinical trials;
    •
    the potential indications, attributes and benefits of our product candidates;
    •
    our ability to obtain and maintain regulatory approval for our product candidates, and any related restrictions, limitations or warnings in the label of an approved product candidate;
    •
    our ability to obtain funding for our operations, including funding necessary to complete further development, approval and, if approved, commercialization of our product candidates;
    •
    the period over which we anticipate our existing cash and cash equivalents will be sufficient to fund our operating expense and capital expenditure requirements;
    •
    the potential for our business development efforts to maximize the potential value of our portfolio;
    •
    our ability to identify, in-license or acquire additional product candidates;
    •
    our ability to compete with other companies currently marketing or engaged in the development of treatments for the indications that we are pursuing for our product candidates;
    •
    our expectations regarding our ability to obtain and maintain intellectual property protection for our product candidates and the duration of such protection;
    •
    our ability to contract with and rely on third parties to assist in conducting our clinical trials and manufacturing our product candidates;
    •
    our manufacturing capabilities, third-party contractor capabilities and strategy;
    •
    our plans related to manufacturing, supply and other collaborative agreements;
    •
    the size and growth potential of the markets for our product candidates, and our ability to serve those markets, either alone or in partnership with others;
    •
    the rate and degree of market acceptance of our product candidates, if approved;
    •
    the pricing and reimbursement of our product candidates, if approved;
    •
    regulatory developments in the United States and foreign countries;
    •
    the impact of laws, regulations, accounting standards, regulatory requirements, judicial decisions and guidance issued by authoritative bodies;
    •
    our ability to attract and retain key scientific, medical, commercial or management personnel;

    S-5


     

    •
    our estimates regarding expenses, future revenue, capital requirements and needs for additional financing;
    •
    our financial performance;
    •
    our ability to maintain our listing on The Nasdaq Capital Market; and
    •
    our ability to continue as a going concern.

    S-6


     

     

    RISK FACTORS

    Investing in our securities involves a high degree of risk. Before making a decision to invest in our securities, in addition to carefully considering the other information contained in this prospectus supplement, in the accompanying base prospectus and incorporated by reference herein or therein, you should carefully consider the risks described under the caption “Risk Factors” contained in the accompanying base prospectus, and any related free writing prospectus, and the risks discussed under the caption “Risk Factors” contained in our most recent annual report on Form 10-K and in our most recent quarterly reports on Form 10-Q, as well as any amendments thereto, which are incorporated by reference into this prospectus supplement in their entirety, together with other information in this prospectus supplement, the documents incorporated by reference, and any free writing prospectus that we may authorize for use in connection with a specific offering. See “Where You Can Find More Information” and “Incorporation by Reference.”

    Risks Related to this Offering

    You may experience immediate and substantial dilution in the net tangible book value per share of the common stock you purchase.

    The offering price per share in this offering may exceed the net tangible book value per share of our common stock outstanding prior to this offering. Assuming that an aggregate 19,841,269 shares of our common stock are sold in this offering at an assumed offering price of $3.78 per share, which was the last reported sale price of our common stock on The Nasdaq Capital Market on December 26, 2025, for aggregate gross proceeds of $75,000,000, and after deducting commissions, you would experience immediate dilution of $0.25 per share, representing the difference between our net tangible book value per share as of September 30, 2025, on an unaudited as adjusted basis after giving effect to this offering. Because the offering price per share will vary based on the market for our common stock and our net tangible book value per share will change over the course of the offering, the actual dilution experienced by you may be more or less than this amount. See “Dilution.”

    Issuances by the Company or sales by stockholders of a substantial number of shares of our common stock in the public market could cause our stock price to fall.

    Sales of a substantial number of shares of our common stock in the public markets, or the perception that such sales could occur, could depress the market price of our common stock and impair our ability to raise capital through the sale of additional equity securities. If our stockholders sell, or the market perceives that our stockholders intend to sell, substantial amount of our common stock in the public market, the market price of our common stock could decline significantly.

    Shares issued upon the exercise of stock options outstanding under our equity incentive plans or pursuant to future awards granted under those plans will become available for sale in the public market to the extent permitted by the provisions of applicable vesting schedules and Rule 144 and Rule 701 under the Securities Act.

    Our management team will have broad discretion to use the net proceeds from this offering and its investment of these proceeds may not yield a favorable return.

    Our management team will have broad discretion in the application of the net proceeds from this offering and could spend or invest the proceeds in ways that may not yield a favorable return or enhance the value of our common stock. Accordingly, investors will need to rely on our management team’s judgment with respect to the use of these proceeds. We intend to use the proceeds, if any, from this offering in the manner described in the section titled “Use of Proceeds.” The failure by management to apply these funds effectively could negatively affect our ability to operate and grow our business. We cannot specify with certainty all of the particular uses for the net proceeds to be received upon the completion of this offering, and the uses will depend on how much of the maximum $75,000,000 of shares are actually sold in this offering. In addition, the amount, allocation and timing of our actual expenditures will depend upon numerous factors. Accordingly, we will have broad discretion in using these proceeds. Until the net proceeds are used, they may be placed in investments that do not produce significant income or that may lose value.

    S-7


     

    We do not anticipate paying cash dividends and, accordingly, stockholders must rely on share appreciation for any return on their investment.

    We have never paid any dividends on our capital stock. We currently intend to retain our future earnings, if any, to fund the development and growth of our businesses and do not anticipate that we will declare or pay any cash dividends on our capital stock in the foreseeable future. As a result, capital appreciation, if any, of our common stock will be your sole source of gain on your investment for the foreseeable future. Investors seeking cash dividends should not invest in our common stock.

    Raising additional capital may cause dilution to our stockholders, including purchasers of our common stock in this offering, restrict our operations or require us to relinquish substantial rights.

    To the extent that we raise additional capital through the sale of equity or convertible debt securities, your ownership interest will be diluted, and the terms of these new securities may include liquidation or other preferences that adversely affect your rights as a common stockholder. Debt financing, if available, may involve fixed payment obligations or agreements that include covenants limiting or restricting our ability to take specific actions such as incurring additional debt, making capital expenditures or declaring dividends. If we raise additional funds through partnerships, collaborations, strategic alliances or licensing arrangements with third parties, we may have to relinquish valuable rights to our technologies, product candidates or future revenue streams, or grant licenses on terms that are not favorable to us. We cannot assure you that we will be able to obtain additional funding if and when necessary. If we are unable to obtain adequate financing on a timely basis, we could be required to delay, scale back or eliminate one or more of our clinical or discovery programs or grant rights to develop and market product candidates that we would otherwise prefer to develop and market ourselves. In addition, we may seek additional capital due to favorable market conditions or strategic considerations even if we believe we have sufficient funds for our current or future operating plans.

    The common stock offered hereby will be sold in “at the market offerings,” and investors who buy shares at different times will likely pay different prices.

    Investors who purchase shares in this offering at different times will likely pay different prices, and accordingly may experience different levels of dilution and different outcomes in their investment results. We will have discretion, subject to market demand and the terms of the Sales Agreement, to vary the timing, prices and number of shares sold in this offering. In addition, subject to the final determination by our board of directors or any restrictions we may place in any applicable placement notice, there is no minimum or maximum sales price for shares to be sold in this offering. Investors may experience a decline in the value of the shares they purchase in this offering as a result of sales made at prices lower than the prices they paid.

    The actual number of shares we will issue under the Sales Agreement, at any one time or in total, is uncertain.

    Subject to certain limitations in the Sales Agreement and compliance with applicable law, we have the discretion to deliver a placement notice to a sales agent at any time throughout the term of the Sales Agreement. The number of shares that are sold by such sales agent after delivering a placement notice will fluctuate based on the market price of the shares of common stock during the sales period and limits we set with such sales agent. Because the price per share of each share sold will fluctuate based on the market price of our common stock during the sales period, it is not possible at this stage to predict the number of shares of common stock that will be ultimately issued.

     

    S-8


     

     

    USE OF PROCEEDS

    We may issue and sell shares of our common stock having aggregate sales proceeds of up to $75,000,000 from time to time. Because there is no minimum offering amount required as a condition to any sales in this offering, the actual total public offering amount, commissions and proceeds to us, if any, are not determinable at this time. There can be no assurance that we will sell any shares under or fully utilize the Sales Agreement with the sales agent as a source of financing.

    We intend to use the net proceeds, if any, from the sale of our common stock in this offering to support pipeline development and for working capital and general corporate purposes. We have not identified the amounts we will spend on any specific purpose. The amounts actually expended for any purpose may vary significantly depending upon numerous factors, including assessments of potential market opportunities, the results of clinical trials and regulatory developments. In the event any net proceeds are not immediately applied, we may temporarily deposit them in our bank accounts as cash and cash equivalents or purchase short-term investments.

    S-9


     

     

    DILUTION

    If you invest in our shares, your ownership interest will be diluted to the extent of the difference between the price you paid per share of common stock in this offering and the net tangible book value per share of our common stock after this offering.

    Our net tangible book value as of September 30, 2025 was approximately $165.1 million, or approximately $3.47 per share of our common stock issued and outstanding. Net tangible book value per share represents total tangible assets less total liabilities, divided by the number of shares of our common stock outstanding as of September 30, 2025.

    Our net tangible book value as of September 30, 2025 would have been approximately $237.6 million, or approximately $3.53 per share of our common stock issued and outstanding, after giving effect to the sale by us of 19,841,269 shares of our common stock in this offering at an assumed offering price of $3.78 per share, which was the last reported sale price of our common stock on The Nasdaq Capital Market on December 26, 2025, for aggregate gross proceeds of $75,000,000, and after deducting commissions payable by us. This represents an immediate increase in net tangible book value of $0.06 per share of our common stock to existing stockholders and an immediate dilution of $0.25 per share of our common stock to new investors purchasing shares of our common stock in this offering at the assumed offering price.

    The following table illustrates the dilution on a per share of common stock basis for investors purchasing shares of our common stock in this offering:

    Assumed public offering price per share

     

     

     

    $

    3.78

     

    Net tangible book value per share as of September 30, 2025

     

    $

    3.47

     

     

     

    Increase in net tangible book value attributable to this offering

     

    $

    0.06

     

     

     

    As adjusted net tangible book value per share as of September 30, 2025

     

     

     

    $

    3.53

     

    Dilution in net tangible book value per share to new investors

     

     

     

    $

    0.25

     

    These calculations are based on 47,548,659 shares outstanding as of September 30, 2025 and excluding, as of that date, the following:

    •
    2,233,407 shares issuable upon exercise of exercise of outstanding common stock purchase warrants with a weighted average exercise price of $36.84;
    •
    6,749,170 shares issuable upon exercise of our issued and outstanding stock options with a weighted-average exercise price of $4.06 per share;
    •
    18,818 shares issuable for restricted stock grants outstanding;
    •
    25,845,059 shares reserved for issuance, but not subject to outstanding options or restricted stock awards, under our incentive equity plans;
    •
    32,613,047 shares reserved for issuance under our employee stock purchase plan;
    •
    4,617,681 shares issuable upon conversion of our Series A Preferred Stock, including shares of Series A Preferred Stock issuable upon exercise of Series A Preferred Stock purchase warrants; and
    •
    213,855,800 shares issuable upon conversion of our Series B Preferred Stock, including shares of Series B Preferred Stock issuable upon exercise of Series B Preferred Stock purchase warrants.

    The table above assumes, for illustrative purposes, that an aggregate of 19,841,269 shares of our common stock are sold at an offering price of $3.78 per share, the last reported sale price of our common stock on The Nasdaq Capital Market on December 26, 2025, for aggregate gross proceeds of $75,000,000. However, the shares sold in this offering, if any, will be sold from time to time at various prices. Presented below, solely for illustrative purposes only, is the effect of each of an increase and a decrease of the assumed offering price by $1.00 per share.

    S-10


     

    Assuming that an aggregate of 15,690,376 shares of our common stock are sold at an offering price of $4.78 per share, representing an increase of $1.00 per share from the assumed offering price above, for aggregate gross proceeds of $75 million, after deducting commissions payable by us, our net tangible book value per share on an as adjusted basis would be $3.76 per share and the dilution in net tangible book value per share to new investors would be $1.02 per share.

    Assuming that an aggregate of 26,978,417 shares of our common stock are sold at an offering price of $2.78 per share, representing a decrease of $1.00 per share from the assumed offering price above, for aggregate gross proceeds of $75 million, after deducting commissions payable by us, our net tangible book value per share on an unaudited as adjusted basis would be $3.19 per share and the accretion in net tangible book value per share to new investors would be $0.41 per share.

    To the extent that other shares are issued, investors purchasing shares in this offering could experience further dilution. In addition, we may choose to raise additional capital due to market conditions or strategic considerations, even if we believe we have sufficient funds for our current or future operating plans. To the extent that additional capital is raised through the sale of equity or convertible debt securities, the issuance of those securities could result in further dilution to investors in this offering.

    S-11


     

     

    PLAN OF DISTRIBUTION

    We have entered into the Sales Agreement with the sales agent relating to the sale of shares of our common stock offered by this prospectus supplement. Under this prospectus supplement, in accordance with the terms of the Sales Agreement, we may sell shares of our common stock for an aggregate offering price of up to $75,000,000 from time to time through or to the sales agent, acting as sales agent, subject to certain limitations, including the number or dollar amount of shares registered under the registration statement to which the offering relates. The sales, if any, of shares made under the Sales Agreement may be made in negotiated transactions, including block trades or block sales, or by any method permitted by law that is deemed to be an “at the market offering” as defined in Rule 415 promulgated under the Securities Act, including without limitation sales made through The Nasdaq Stock Market LLC or an any other existing trading market for our common stock, or by any other method permitted by law. Sales pursuant to the Sales Agreement may be made through an affiliate of the sales agent. We may instruct the sales agent not to sell common stock if the sales cannot be effected at or above the price designated by us from time to time. We or the sales agent may suspend the offering of common stock upon notice and subject to other conditions.

    Each time we wish to issue and sell common stock under the Sales Agreement, we will notify the sales agent of the number or dollar value of shares to be issued, the dates on which such sales are anticipated to be made, any minimum price below which sales may not be made and other sales parameters as we deem appropriate. Once we have so instructed the sales agent, unless it declines to accept the terms of the notice, the sales agent has agreed to use its commercially reasonable efforts consistent with its normal trading and sales practices to sell such shares up to the amount specified on such terms. The obligations of the sales agent under the Sales Agreement to sell our common stock is subject to a number of conditions that we must meet.

    We will pay the sales agent an aggregate commission of up to 3.0% of the gross proceeds from the sale of common stock offered hereby. Under the Sales Agreement, we also agreed to reimburse the sales agent up to $75,000 of the sales agent’s actual outside legal expenses incurred in connection with executing the Sales Agreement and certain ongoing expenses incurred in connection with the sales agent’s ongoing diligence arising from the transactions contemplated by the Sales Agreement. In accordance with Financial Industry Regulatory Authority, Inc. Rule 5110, these fees and reimbursed expenses are deemed sales compensation in connection with this offering. We estimate that the total expenses for the offering, excluding compensation payable to the sales agent under the terms of the Sales Agreement, will be approximately $261,000.

    Settlement for sales of common stock will generally occur on the first trading day following the date on which any sales are made, or on some other date that is agreed upon by us and the sales agent in connection with a particular transaction, in return for payment of the net proceeds to us. There is no arrangement for funds to be received in an escrow, trust or similar arrangement. We will report at least quarterly the number of shares of common stock sold through the sales agent under the Sales Agreement and the net proceeds to us in connection with the sales of common stock.

    In connection with the sale of shares of our common stock on our behalf, each sales agent may be deemed to be an “underwriter” within the meaning of the Securities Act, and the compensation of such sales agent may be deemed to be underwriting commissions or discounts. We have agreed to provide indemnification and contribution to the sales agent against certain civil liabilities, including liabilities under the Securities Act.

    The sales agent or we may suspend the offering of our common stock being made through the sales agent under the Sales Agreement upon proper notice to the other party. The sales agent and we each have the right, by giving written notice as specified in the Sales Agreement, to terminate the Sales Agreement in each party’s sole discretion at any time. The offering of shares of our common stock pursuant to the Sales Agreement will otherwise terminate upon the termination of the Sales Agreement as provided therein. The offering of our common stock pursuant to this prospectus supplement will otherwise terminate upon the earlier of (i) the sale of all of our common stock provided for in this prospectus supplement or (ii) termination of the Sales Agreement as provided therein.

    Our common stock is listed on The Nasdaq Capital Market under the symbol “SABS”. The transfer agent for our common stock is Continental Stock Transfer & Trust Company.

    S-12


     

    Each sales agent and its respective affiliates may in the future provide various investment banking and other financial services for us and our affiliates, for which services they may in the future receive customary fees. In the course of their business, the sales agent may actively trade our securities for their own account or for the accounts of customers, and, accordingly, the sales agent may at any time hold long or short positions in such securities.

    S-13


     

     

    EXPERTS

    The consolidated financial statements of SAB Biotherapeutics, Inc. as of and for the years ended December 31, 2024 and 2023, included in our Annual Report on Form 10-K for the year ended December 31, 2024, have been audited by EisnerAmper LLP, independent registered public accounting firm, as set forth in their report (which report includes an explanatory paragraph regarding the existence of substantial doubt about our ability to continue as a going concern), and have been incorporated herein by reference in reliance upon such report given on the authority of such firm as experts in accounting and auditing.

    LEGAL MATTERS

    If and when the securities being registered hereunder are issued, the validity of such issuance will be passed upon for the Company by Dentons US LLP, New York, New York. The sales agent is being represented in connection with this offering by Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C., Boston, Massachusetts.

    WHERE YOU CAN FIND MORE INFORMATION

    This prospectus is part of the registration statement on Form S-3 we filed with the SEC under the Securities Act and does not contain all the information set forth in the registration statement. Whenever a reference is made in this prospectus to any of our contracts, agreements or other documents, the reference may not be complete and you should refer to the exhibits that are a part of the registration statement or the exhibits to the reports or other documents incorporated by reference into this prospectus for a copy of such contract, agreement or other document. Because we are subject to the information and reporting requirements of the Exchange Act, we file annual, quarterly and current reports, proxy statements and other information with the SEC. Our SEC filings are available to the public over the Internet at the SEC’s website at http://www.sec.gov.

    You may also access our SEC filings at our website www.sab.bio. Our website and the information contained on, or that can be accessed through, our website will not be deemed to be incorporated by reference in, and are not considered part of, this prospectus. You should not rely on our website or any such information in making your decision whether to purchase our securities.

    INFORMATION INCORPORATED BY REFERENCE

    The SEC allows us to incorporate by reference into this prospectus the information contained in other documents we file with the SEC, which means that we can disclose important information to you by referring you to those documents. Any statement contained in any document incorporated or deemed to be incorporated by reference herein shall be deemed to be modified or superseded, for purposes of this prospectus, to the extent that a statement contained in or omitted from this prospectus, or in any other subsequently filed document that also is or is deemed to be incorporated by reference herein, modifies or supersedes such statement. Any such statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this prospectus. We incorporate by reference the documents listed below which have been filed by us:

    •
    Our Annual Report on Form 10-K for the fiscal year ended December 31, 2024, filed with SEC on March 31, 2025;
    •
    Our Quarterly Reports on Form 10-Q for the fiscal periods ended March 31, 2025, June 30, 2025, and September 30, 2025, filed with the SEC on May 9, 2025, August 7, 2025, and November 14, 2025, respectively;
    •
    Our Current Reports on Form 8-K filed with the SEC on January 28, 2025, February 5, 2025, July 17, 2025, July 21, 2025, September 26, 2025, September 30, 2025, and December 29, 2025; and

    S-14


     

    •
    The description of our common stock and warrants in our registration statement on Form 8-A filed with the SEC on January 8, 2021, including any amendments or reports filed for the purpose of updating such description.

    In addition, all documents subsequently filed by us pursuant to Sections 13(a), 13(c), 14 and 15(d) of the Exchange Act on or after the date of this prospectus and prior to the termination of the offering of the securities to which this prospectus relates, shall be deemed to be incorporated by reference in this prospectus and to be a part hereof from the date of filing of such documents. However, any documents or portions thereof, whether specifically listed above or filed in the future, that are not deemed “filed” with the SEC, including without limitation any information furnished pursuant to Item 2.02 or 7.01 of Form 8-K or certain exhibits furnished pursuant to Item 9.01 of Form 8-K, shall not be deemed to be incorporated by reference in this prospectus.

    Any statement in a document incorporated or deemed to be incorporated by reference herein shall be deemed to be modified or superseded for the purposes of this prospectus to the extent that a statement contained herein or in any other subsequently filed document which also is incorporated or deemed to be incorporated by reference herein modifies or supersedes such statement. Any statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this prospectus.

    You can request a copy of these filings, at no cost, by writing or telephoning us at the following address or telephone number:

    SAB Biotherapeutics, Inc.

    777 W 41st St., Suite 401

    Miami Beach, Florida 33140

    Attn: Corporate Secretary

    (305)-845-2813

    S-15


     

    Up to $75,000,000 of

    Common Stock

    img32523786_1.jpg

     

    SAB Biotherapeutics, Inc.

    PROSPECTUS SUPPLEMENT

    UBS Investment Bank

    , 2025

     

     


     

    PART II

    INFORMATION NOT REQUIRED IN PROSPECTUS

    Item 14. Other Expenses of Issuance and Distribution.

    The following table sets forth all expenses, other than the underwriting discounts and commissions, payable by the registrant in connection with the sale of the securities being registered. All of such fees and expenses, except for the registration fee, are estimates.

     

    SEC Registration fee

    $

    34,525

    Accounting fees and expenses

    $

    *

    Legal fees and expenses

    $

    *

    Miscellaneous fees and expenses

    $

    *

    Total

    $

    34,525

    *The calculation of these fees and expenses is dependent on the number of issuances and amount of securities offered and, accordingly, cannot be estimated at this time.

    The Company shall bear all expenses in connection with the issuance and distribution of the securities being offered hereby.

    Item 15. Indemnification of Directors and Officers.

    Section 145 of the DGCL provides that a corporation may indemnify directors and officers as well as other employees and individuals against expenses (including attorneys’ fees), judgments, fines and amounts paid in settlement actually and reasonably incurred by such person in connection with any threatened, pending or completed actions, suits or proceedings in which such person is made a party by reason of such person being or having been a director, officer, employee or agent of the registrant. The DGCL provides that Section 145 is not exclusive of other rights to which those seeking indemnification may be entitled under any bylaws, agreement, vote of stockholders or disinterested directors or otherwise. The Registrant’s Certificate of Incorporation and Bylaws provide for indemnification by the Registrant of its directors and officers to the fullest extent permitted by the DGCL.

    Section 102(b)(7) of the DGCL permits a corporation to provide in its Certificate of Incorporation that a director of the corporation shall not be personally liable to the corporation or its stockholders for monetary damages for breach of fiduciary duty as a director, except for liability (1) for any breach of the director’s duty of loyalty to the corporation or its stockholders, (2) for acts or omissions not in good faith or which involve intentional misconduct or a knowing violation of law, (3) for unlawful payments of dividends or unlawful stock repurchases redemptions or other distributions or (4) for any transaction from which the director derived an improper personal benefit. The registrant’s Certificate of Incorporation provides for such limitation of liability to the fullest extent permitted by the DGCL.

    The registrant has entered into indemnification agreements with each of its directors and executive officers to provide contractual indemnification in addition to the indemnification provided in our Certificate of Incorporation. Each indemnification agreement provides for indemnification and advancements by the registrant of certain expenses and costs relating to claims, suits or proceedings arising from his or her service to the registrant or, at our request, service to other entities, as officers or directors to the maximum extent permitted by applicable law. We believe that these provisions and agreements are necessary to attract qualified directors.

    The registrant also maintains standard policies of insurance under which coverage is provided (1) to its directors and officers against loss arising from claims made by reason of breach of duty or other wrongful act, while acting directors and officers of the registrant, and (2) to the registrant with respect to payments which may be made by the Registrant to such officers and directors pursuant to any indemnification provision contained in the Registrant’s Certificate of Incorporation and Bylaws or otherwise as a matter of law.

    II-1


     

    Item 16. Exhibits.

    See the Exhibit Index attached to this registration statement and incorporated herein by this reference.

    Item 17. Undertakings.

    (a) The undersigned registrant hereby undertakes:

    (1) To file, during any period in which offers or sales are being made, a post-effective amendment to this registration statement:

    (i) To include any prospectus required by section 10(a)(3) of the Securities Act;

    (ii) To reflect in the prospectus any facts or events arising after the effective date of the registration statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the registration statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered (if the total dollar value of securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum offering range may be reflected in the form of prospectus filed with the Commission pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price represent no more than a 20% change in the maximum aggregate offering price set forth in the “Calculation of Registration Fee” table in the effective registration statement;

    (iii) To include any material information with respect to the plan of distribution not previously disclosed in the registration statement or any material change to such information in the registration statement;

    provided, however, that paragraphs (1)(i), (1)(ii) and (1)(iii) of this section do not apply if the information required to be included in a post-effective amendment by those paragraphs is contained in reports filed with or furnished to the Commission by the registrant pursuant to section 13 or section 15(d) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”) that are incorporated by reference in the registration statement, or is contained in a form of prospectus filed pursuant to Rule 424(b) that is part of the registration statement.

    (2) That, for the purpose of determining any liability under the Securities Act, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.

    (3) To remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering

    (4) That, for the purpose of determining liability under the Securities Act of 1933 to any purchaser:

    (i) Each prospectus filed by the registrant pursuant to Rule 424(b)(3) shall be deemed to be part of the registration statement as of the date the filed prospectus was deemed part of and included in the registration statement; and

    (ii) Each prospectus required to be filed pursuant to Rule 424(b)(2), (b)(5), or (b)(7) as part of a registration statement in reliance on Rule 430B relating to an offering made pursuant to Rule 415(a)(1)(i), (vii), or (x) for the purpose of providing the information required by section 10(a) of the Securities Act of 1933 shall be deemed to be part of and included in the registration statement as of the earlier of the date such form of prospectus is first used after effectiveness or the date of the first contract of sale of securities in the offering described in the prospectus. As provided in Rule 430B, for liability purposes of the issuer and any person that is at that date an underwriter, such date shall be deemed to be a new effective date of the registration statement relating to the securities in the registration statement to which that prospectus relates, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof. Provided, however, that no statement made in a registration statement or prospectus that is part of the registration statement or made in a document incorporated or deemed incorporated by reference into the registration statement or prospectus that is part of the registration statement will, as to a purchaser with a time of contract of sale prior to such effective date, supersede or modify any statement that was made in the registration statement or prospectus that was part of the registration statement or made in any such document immediately prior to such effective date.

    II-2


     

    (5) That, for the purpose of determining liability of the registrant under the Securities Act of 1933 to any purchaser in the initial distribution of the securities:

    The undersigned registrant undertakes that in a primary offering of securities of the undersigned registrant pursuant to this registration statement, regardless of the underwriting method used to sell the securities to the purchaser, if the securities are offered or sold to such purchaser by means of any of the following communications, the undersigned registrant will be a seller to the purchaser and will be considered to offer or sell such securities to such purchaser:

    (i) Any preliminary prospectus or prospectus of the undersigned registrant relating to the offering required to be filed pursuant to Rule 424;

    (ii) Any free writing prospectus relating to the offering prepared by or on behalf of the undersigned registrant or used or referred to by the undersigned registrant;

    (iii) The portion of any other free writing prospectus relating to the offering containing material information about the undersigned registrant or its securities provided by or on behalf of the undersigned registrant; and

    (iv) Any other communication that is an offer in the offering made by the undersigned registrant to the purchaser.

    (b) The undersigned registrant hereby undertakes that, for purposes of determining any liability under the Securities Act, each filing of the registrant’s annual report pursuant to section 13(a) or section 15(d) of the Exchange Act (and, where applicable, each filing of an employee benefit plan’s annual report pursuant to section 15(d) of the Exchange Act) that is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.

    (h) Insofar as indemnification for liabilities arising under the Securities Act may be permitted to directors, officers and controlling persons of the registrant pursuant to the foregoing provisions, or otherwise, the registrant has been advised that in the opinion of the Commission such indemnification is against public policy as expressed in the Securities Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the registrant of expenses incurred or paid by a director, officer or controlling person of the registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Securities Act and will be governed by the final adjudication of such issue.

    (j) The undersigned registrant hereby undertakes to file an application for the purpose of determining the eligibility of the trustee to act under subsection (a) of section 310 of the Trust Indenture Act in accordance with the rules and regulations prescribed by the Commission under section 305(b)(2) of the Act.

    II-3


     

    EXHIBIT INDEX

    Incorporated by Reference

    Exhibit
    Number

    Description

    Schedule/
    Form

    File No.

    Exhibit

    Filing Date

    1.1*^

    Sales Agreement, dated December 29, 2025, by and between SAB Biotherapeutics, Inc. and UBS Securities LLC

     

     

     

     

     

     

    3.1

     

    Amended and Restated Certificate of Incorporation.

     

    8-K

     

    001-39871

     

    3.1

     

    October 28, 2021

    3.2

    Amended and Restated Bylaws.

    8-K

     

     

    001-39871

    3.2

     

    October 28, 2021

    4.1

    Specimen common stock Certificate of Registrant.

    S-1/A

     

    333-258869

    4.2

     

    January 4, 2021

    4.2**

    Form of Specimen Certificate Representing Preferred Stock

     

     

     

     

     

     

    4.3*

    Form of Indenture

     

     

     

     

     

     

     

    4.4**

     

    Form of Subordinated Debt Securities Indenture.

     

     

     

     

     

     

     

    4.5**

     

    Form of Senior Debt Securities Indenture.

     

     

     

     

     

     

     

     

    4.6**

     

    Form of Warrant.

     

     

     

     

     

     

     

     

    4.7**

     

    Form of Warrant Agreement.

     

     

     

     

     

     

     

     

    4.8**

     

    Form of Unit Agreement

     

     

     

     

     

     

     

     

    5.1*

     

    Opinion of Dentons US LLP

     

     

     

     

     

     

     

     

    23.1*

    Consent of Dentons US LLP (included in Exhibit 5.1)

    23.2*

    Consent of Independent Registered Public Accounting Firm

    24.1*

    Power of Attorney (included on a signature page of the initial filing of this Registration Statement)

    25.1***

     

    Statement of Eligibility on Form T-1 under the Trust Indenture Act of 1939, as amended, of Debt Trustee (to be filed prior to any issuance of Debt Securities).

     

     

     

     

     

     

     

     

    107*

    Filing Fee Table

    * Filed herewith

    II-4


     

    ** To be filed by amendment

    *** To be filed in accordance with the requirements of Section 305(b)(2) of the Trust Indenture Act of 1939.

    ^ Certain portions of the exhibit have been omitted pursuant to Item 601(a)(6) of Regulation S-K. The Company hereby agrees to furnish a copy of any omitted portion to the SEC upon request.

    II-5


     

    SIGNATURES

    Pursuant to the requirements of the Securities Act of 1933, the Company has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized in City of Miami Beach, Florida, on this December 29, 2025.

    SAB BIOTHERAPEUTICS, INC.

    Date:

    December 29, 2025

    By:

    /s/ Samuel J. Reich

    Samuel J. Reich
    Chief Executive Officer

    POWER OF ATTORNEY

    KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Samuel J. Reich and Lucy To., and each of them acting individually, as his or her true and lawful attorney- in-fact and agent, with full power of each to act alone, with full powers of substitution and resubstitution, for him or her and in his or her name, place and stead, in any and all capacities, to sign any and all amendments to this registration statement (including post-effective amendments and any registration statement for the same offering that is to be effective under Rule 462(b) of the Securities Act), and to file the same with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorney-in-fact and agent, and full power and authority to do and perform each and every act and thing requisite and necessary to be done in connection therewith, as fully for all intents and purposes as he or she might or could do in person, hereby ratifying and confirming that all said attorneys-in-fact and agents, or any of them or their substitute or resubstitute, may lawfully do or cause to be done by virtue hereof.

    Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has been signed by the following persons in the capacities and on the dates indicated.

    Signature

    Title

    Date

    /s/ Samuel J. Reich

    Chair and Chief Executive Officer

    December 29, 2025

    Samuel J. Reich

    (Principal Executive Officer)

    /s/ Lucy To

    Chief Financial Officer

    (Principal Financial Officer and

    December 29, 2025

    Lucy To

    Principal Accounting Officer)

    /s/ Eddie J. Sullivan, PhD

    President and Director

    December 29, 2025

    Eddie J. Sullivan, PhD

    /s/ Katie Ellias

     

    Director

     

    December 29, 2025

    Katie Ellias

     

     

     

     

    /s/ Scott Giberson, RPh, MPH, D.Sc.

    Director

    December 29, 2025

    Scott Giberson, RPh,MPH, D.Sc.

    /s/ David Charles Link

    Director

    December 29, 2025

    David Charles Link

    /s/ Erick Lucera

    Director

    December 29, 2025

    Erick Lucera

    II-6


     

    /s/ Andrew Moin

     

    Director

     

    December 29, 2025

    Andrew Moin

     

     

     

     

     

     

     

     

     

    /s/ William Polvino, MD, PhD

    Director

    December 29, 2025

    William Polvino, MD, PhD

    /s/ Jay Skyler, MD

     

    Director

     

    December 29, 2025

    Jay Skyler, MD

     

     

     

     

     

     

     

     

     

    II-7


    Get the next $SABS alert in real time by email

    Crush Q1 2026 with the Best AI Superconnector

    Stay ahead of the competition with Standout.work - your AI-powered talent-to-startup matching platform.

    AI-Powered Inbox
    Context-aware email replies
    Strategic Decision Support
    Get Started with Standout.work

    Recent Analyst Ratings for
    $SABS

    DatePrice TargetRatingAnalyst
    12/19/2025$15.00Buy
    Guggenheim
    9/17/2025$7.00Outperform
    Leerink Partners
    5/14/2025$10.00Buy
    H.C. Wainwright
    10/9/2024$11.00Buy
    Craig Hallum
    8/28/2024$12.00Outperform
    Oppenheimer
    11/5/2021$17.00Buy
    Chardan Capital Markets
    11/2/2021$23.00Outperform
    Robert W. Baird
    11/2/2021$23.00Outperform
    Baird
    More analyst ratings

    $SABS
    Press Releases

    Fastest customizable press release news feed in the world

    View All

    SAB BIO Strengthens Board of Directors with Appointment of New Chair and New Director

    David Zaccardelli, Pharm.D. joins Board as Chair Rita Jain, M.D., joins Board as an Independent Director MIAMI, Jan. 07, 2026 (GLOBE NEWSWIRE) -- SAB Biotherapeutics, Inc. (NASDAQ:SABS), a clinical-stage biopharmaceutical company developing a fully human anti-thymocyte immunoglobulin (hATG) for type 1 diabetes (T1D) and other autoimmune diseases, today announced the appointment of David Zaccardelli, Pharm.D. to its Board of Directors as Chair of the Board and the appointment of Rita Jain, M.D., as an independent director, both effective immediately. "We are excited to welcome Dr. David Zaccardelli and Dr. Rita Jain to our Board of Directors. I, along with the rest of our Board, am confi

    1/7/26 8:00:00 AM ET
    $SABS
    Biotechnology: Biological Products (No Diagnostic Substances)
    Health Care

    SAB BIO to Present at the 44th Annual J.P. Morgan Healthcare Conference

    MIAMI, Jan. 06, 2026 (GLOBE NEWSWIRE) -- SAB Biotherapeutics, Inc. (NASDAQ:SABS), a clinical-stage biopharmaceutical company developing human anti-thymocyte immunoglobulin (hATG) for type 1 diabetes (T1D) and other autoimmune diseases, today announced that the Company's CEO Samuel J. Reich will present at the 44th Annual J.P. Morgan Healthcare Conference on Thursday, January 15 at 7:30 a.m. PT/10:30 a.m. ET in San Francisco, CA. A live webcast of the presentation will be available in the "Investors" section of the SAB BIO website at www.sab.bio. An archived replay will be available on the Company's website for approximately 30 days following the presentation. About SAB BIOSAB BIO is

    1/6/26 8:00:00 AM ET
    $SABS
    Biotechnology: Biological Products (No Diagnostic Substances)
    Health Care

    First Patient Dosed in SAB BIO's SAFEGUARD Clinical Trial of SAB-142 for the Treatment of Stage 3 T1D

    Enrollment in the SAFEGUARD trial is ongoing at multiple centers globallyCompany on-track to share Phase 2b data in 2H 2027 MIAMI, Dec. 18, 2025 (GLOBE NEWSWIRE) -- SAB Biotherapeutics, Inc. (NASDAQ:SABS), a clinical-stage biopharmaceutical company developing human anti-thymocyte immunoglobulin (hATG) for type 1 diabetes (T1D) and other autoimmune diseases, today announced the dosing of the first patient with SAB-142 in the Phase 2b registrational SAFety and Efficacy of human anti-thymocyte immunoGlobUlin SAB-142 ARresting progression of type 1 Diabetes (SAFEGUARD) clinical trial. SAB-142 is in development as a novel, potentially best-in-class, disease-modifying immunotherapeutic approach

    12/18/25 8:00:00 AM ET
    $SABS
    Biotechnology: Biological Products (No Diagnostic Substances)
    Health Care

    $SABS
    Insider Trading

    Insider transactions reveal critical sentiment about the company from key stakeholders. See them live in this feed.

    View All

    SEC Form 4 filed by Director Jain Rita

    4 - SAB Biotherapeutics, Inc. (0001833214) (Issuer)

    1/7/26 4:41:02 PM ET
    $SABS
    Biotechnology: Biological Products (No Diagnostic Substances)
    Health Care

    SEC Form 4 filed by Director Zaccardelli David

    4 - SAB Biotherapeutics, Inc. (0001833214) (Issuer)

    1/7/26 4:40:03 PM ET
    $SABS
    Biotechnology: Biological Products (No Diagnostic Substances)
    Health Care

    SEC Form 3 filed by new insider Jain Rita

    3 - SAB Biotherapeutics, Inc. (0001833214) (Issuer)

    1/7/26 4:36:02 PM ET
    $SABS
    Biotechnology: Biological Products (No Diagnostic Substances)
    Health Care

    $SABS
    Insider Purchases

    Insider purchases reveal critical bullish sentiment about the company from key stakeholders. See them live in this feed.

    View All

    Sullivan Eddie Joe bought $1,531 worth of shares (1,740 units at $0.88), increasing direct ownership by 0.03% to 5,232,304 units (SEC Form 4)

    4 - SAB Biotherapeutics, Inc. (0001833214) (Issuer)

    12/8/23 8:00:05 AM ET
    $SABS
    Biotechnology: Biological Products (No Diagnostic Substances)
    Health Care

    King Michael bought $4,500 worth of shares (5,000 units at $0.90) (SEC Form 4)

    4 - SAB Biotherapeutics, Inc. (0001833214) (Issuer)

    11/30/23 5:00:07 PM ET
    $SABS
    Biotechnology: Biological Products (No Diagnostic Substances)
    Health Care

    Reich Samuel J bought $9,842 worth of shares (11,000 units at $0.89), increasing direct ownership by 5% to 219,001 units (SEC Form 4)

    4 - SAB Biotherapeutics, Inc. (0001833214) (Issuer)

    11/30/23 8:00:04 AM ET
    $SABS
    Biotechnology: Biological Products (No Diagnostic Substances)
    Health Care

    $SABS
    SEC Filings

    View All

    SAB Biotherapeutics Inc. filed SEC Form 8-K: Regulation FD Disclosure, Financial Statements and Exhibits

    8-K - SAB Biotherapeutics, Inc. (0001833214) (Filer)

    1/12/26 4:47:55 PM ET
    $SABS
    Biotechnology: Biological Products (No Diagnostic Substances)
    Health Care

    SEC Form EFFECT filed by SAB Biotherapeutics Inc.

    EFFECT - SAB Biotherapeutics, Inc. (0001833214) (Filer)

    1/8/26 12:15:24 AM ET
    $SABS
    Biotechnology: Biological Products (No Diagnostic Substances)
    Health Care

    SAB Biotherapeutics Inc. filed SEC Form 8-K: Leadership Update, Regulation FD Disclosure, Financial Statements and Exhibits

    8-K - SAB Biotherapeutics, Inc. (0001833214) (Filer)

    1/7/26 8:30:26 AM ET
    $SABS
    Biotechnology: Biological Products (No Diagnostic Substances)
    Health Care

    $SABS
    Analyst Ratings

    Analyst ratings in real time. Analyst ratings have a very high impact on the underlying stock. See them live in this feed.

    View All

    Guggenheim initiated coverage on SAB BIO with a new price target

    Guggenheim initiated coverage of SAB BIO with a rating of Buy and set a new price target of $15.00

    12/19/25 8:51:08 AM ET
    $SABS
    Biotechnology: Biological Products (No Diagnostic Substances)
    Health Care

    Leerink Partners initiated coverage on SAB BIO with a new price target

    Leerink Partners initiated coverage of SAB BIO with a rating of Outperform and set a new price target of $7.00

    9/17/25 8:03:24 AM ET
    $SABS
    Biotechnology: Biological Products (No Diagnostic Substances)
    Health Care

    H.C. Wainwright resumed coverage on SAB BIO with a new price target

    H.C. Wainwright resumed coverage of SAB BIO with a rating of Buy and set a new price target of $10.00

    5/14/25 9:00:46 AM ET
    $SABS
    Biotechnology: Biological Products (No Diagnostic Substances)
    Health Care

    $SABS
    Leadership Updates

    Live Leadership Updates

    View All

    SAB BIO Strengthens Board of Directors with Appointment of New Chair and New Director

    David Zaccardelli, Pharm.D. joins Board as Chair Rita Jain, M.D., joins Board as an Independent Director MIAMI, Jan. 07, 2026 (GLOBE NEWSWIRE) -- SAB Biotherapeutics, Inc. (NASDAQ:SABS), a clinical-stage biopharmaceutical company developing a fully human anti-thymocyte immunoglobulin (hATG) for type 1 diabetes (T1D) and other autoimmune diseases, today announced the appointment of David Zaccardelli, Pharm.D. to its Board of Directors as Chair of the Board and the appointment of Rita Jain, M.D., as an independent director, both effective immediately. "We are excited to welcome Dr. David Zaccardelli and Dr. Rita Jain to our Board of Directors. I, along with the rest of our Board, am confi

    1/7/26 8:00:00 AM ET
    $SABS
    Biotechnology: Biological Products (No Diagnostic Substances)
    Health Care

    SAB BIO Reports Full Year 2024 Operating and Financial Results

    MIAMI, March 31, 2025 (GLOBE NEWSWIRE) -- SAB BIO (Nasdaq: SABS), ("SAB BIO" or the "Company"), a clinical-stage biopharmaceutical company with a novel immunotherapy platform that is developing human anti-thymocyte immunoglobulin (hIgG) for delaying the onset or progression of type 1 diabetes (T1D), today announced financial results for the fourth quarter of 2024 in addition to its full year financial results for the fiscal year ended December 31, 2024, and reported on recent accomplishments and anticipated milestones. Samuel J. Reich, Chairman and CEO of SAB BIO stated, "Our recent announcement of positive topline data for SAB-142, further strengthens our belief that SAB-142 has the pote

    3/31/25 7:32:00 AM ET
    $SABS
    Biotechnology: Biological Products (No Diagnostic Substances)
    Health Care

    SAB BIO Announces Second Quarter 2024 Financial Results and Provides Company Updates

    FDA provided clearance to SAB's IND Appointed Lucy To as Chief Financial Officer Announced founding of a new Clinical Advisory Board MIAMI, Aug. 08, 2024 (GLOBE NEWSWIRE) -- SAB BIO (Nasdaq: SABS), ("SAB" or the "Company"), a clinical-stage biopharmaceutical company with a novel immunotherapy platform that is developing human anti-thymocyte immunoglobulin (hIgG) for delaying the onset or progression of type 1 diabetes (T1D), today reported financial results for the second quarter ended June 30, 2024, and provided a company update. "We've had a strong quarter as we drive closer to our upcoming SAB-142 milestones. We continue to see an urgent need for transformative therapies in this spa

    8/8/24 5:51:04 PM ET
    $SABS
    Biotechnology: Biological Products (No Diagnostic Substances)
    Health Care

    $SABS
    Financials

    Live finance-specific insights

    View All

    SAB BIO Announces Positive Topline Phase 1 Clinical Results with Potentially Disease-Modifying T1D Therapy SAB-142

    SAB-142 was generally well-tolerated among healthy volunteers; data from Phase 1 trial confirms SAB-142 does not cause serum sickness or anti-drug antibodies at target dose Study results support that SAB-142 is well-positioned for re-dosing in outpatient setting for type 1 diabetesResults will be presented in an R&D webinar event today at 8:00 am ET; registration details below MIAMI, Jan. 28, 2025 (GLOBE NEWSWIRE) -- SAB BIO (Nasdaq: SABS), ("SAB BIO" or the "Company"), a clinical-stage biopharmaceutical company with a novel immunotherapy platform that is developing human anti-thymocyte immunoglobulin (hIgG) for delaying the onset or progression of type 1 diabetes (T1D), today an

    1/28/25 7:00:00 AM ET
    $SABS
    Biotechnology: Biological Products (No Diagnostic Substances)
    Health Care

    SAB BIO Announces R&D Webinar Event to Review Phase 1 Topline Results for SAB-142, a Disease-Modifying T1D Therapy

    MIAMI, Jan. 23, 2025 (GLOBE NEWSWIRE) -- SAB BIO (Nasdaq: SABS), ("SAB" or the "Company"), a clinical-stage biopharmaceutical company with a novel immunotherapy platform that is developing human anti-thymocyte immunoglobulin (hIgG) for delaying the onset or progression of type 1 diabetes (T1D), announced today that the Company will host a Research and Development webinar on January 28, 2025 to discuss the topline data for Phase 1 clinical trial for its lead candidate, SAB-142. The webinar will feature presentations from SAB BIO's management team and T1D Key Opinion Leader (KOL) Michael Haller, MD, the division chief of the Pediatric Endocrinology Division at the University of Florida and S

    1/23/25 7:00:00 AM ET
    $SABS
    Biotechnology: Biological Products (No Diagnostic Substances)
    Health Care

    SAB Biotherapeutics Reports Full Year 2023 Operating and Financial Results

    Sioux Falls, SD , March 29, 2024 (GLOBE NEWSWIRE) -- SAB Biotherapeutics Reports Full Year 2023 Operating and Financial Results March 29, 2024 SAB-142 Phase 1 trial on track for data release during 2024 Completed financing for up to $110 million with leading life science investors Cash and equivalents of $56.6 million as of December 31, 2023 Company expects its cash and equivalents, with exercise of Tranche B warrants, will fund operations into 2026 Sioux Falls, SD March 29, 2024 (GlobeNewswire)—SAB Biotherapeutics, Inc. (NASDAQ:SABS), ("SAB" or "the company"), a clinical-stage biopharmaceutical company with a novel immunotherapy platform that is developing human anti-thymocyte immun

    3/29/24 7:15:00 AM ET
    $SABS
    Biotechnology: Biological Products (No Diagnostic Substances)
    Health Care

    $SABS
    Large Ownership Changes

    This live feed shows all institutional transactions in real time.

    View All

    SEC Form SC 13G/A filed by SAB Biotherapeutics Inc. (Amendment)

    SC 13G/A - SAB Biotherapeutics, Inc. (0001833214) (Subject)

    2/14/24 4:05:33 PM ET
    $SABS
    Biotechnology: Biological Products (No Diagnostic Substances)
    Health Care

    SEC Form SC 13G filed by SAB Biotherapeutics Inc.

    SC 13G - SAB Biotherapeutics, Inc. (0001833214) (Subject)

    2/14/24 7:02:03 AM ET
    $SABS
    Biotechnology: Biological Products (No Diagnostic Substances)
    Health Care

    SEC Form SC 13G/A filed by SAB Biotherapeutics Inc. (Amendment)

    SC 13G/A - SAB Biotherapeutics, Inc. (0001833214) (Subject)

    2/14/24 6:28:12 AM ET
    $SABS
    Biotechnology: Biological Products (No Diagnostic Substances)
    Health Care