• 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

    © 2025 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

    ASP Isotopes Inc. filed SEC Form 8-K: Regulation FD Disclosure

    12/18/25 7:34:11 AM ET
    $ASPI
    Major Chemicals
    Industrials
    Get the next $ASPI alert in real time by email
    aspi_8k.htm
    0001921865false00019218652025-12-182025-12-18iso4217:USDxbrli:sharesiso4217:USDxbrli:shares

     

    UNITED STATES

    SECURITIES AND EXCHANGE COMMISSION

    Washington, D.C. 20549

     

    FORM 8-K

     

    CURRENT REPORT

     

    Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

     

    Date of Report (Date of earliest event reported): December 18, 2025

     

    ASP Isotopes Inc.

    (Exact name of registrant as specified in its charter)

     

    Delaware

     

    001-41555

     

    87-2618235

    (State or other jurisdiction of

    incorporation)

     

    (Commission

    File Number)

     

    (IRS Employer

    Identification No.)

     

    601 Pennsylvania Avenue NW,

    South Building, Suite 900

    Washington, DC

     

    20004

    (Address of principal executive offices)

     

    (Zip Code)

     

    Registrant’s telephone number, including area code: (202) 756-2245

     

     Not Applicable

    (Former name or former address, if changed since last report.)

     

    Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

     

    ☐ 

    Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

     

    ☐ 

    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

     

    ☐

    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

     

    ☐

    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

     

    Securities registered pursuant to Section 12(b) of the Act:

     

    Title of each class

     

    Trading Symbol(s)

     

    Name of each exchange on which registered

    Common Stock, par value $0.01

     

    ASPI

     

    The Nasdaq Stock Market LLC

     

    Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

     

    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 13(a) of the Exchange Act ☐ 

     

     

     

     

    Item 7.01. Regulation FD Disclosure.

     

    On December 18, 2025, ASP Isotopes Inc. (the “Company” or “ASP Isotopes”) confirmed that the South African Takeover Regulation Panel has issued a compliance certificate in connection with the scheme of arrangement under South African law pursuant to which ASP Isotopes will offer to acquire all of the issued ordinary shares of JSE-listed Renergen Limited (“Renergen”) and Renergen shareholders will receive 0.09196 new ASP Isotopes shares for each Renergen share held on the record date (the “Scheme”) and that, as a result, the Scheme can now proceed to implementation.

     

    The remaining salient dates and times for the implementation of the Scheme are set out below:

     

    Compliance certificate received from the Takeover Panel on

    Thursday, 18 December 2025

    Scheme Finalisation Date

    Thursday, 18 December 2025

    Scheme Finalisation Date announcement released on SENS by 09:00 SAST and on the ASX by 17:00 AEST on

    Thursday, 18 December 2025

    Application for delisting of Renergen Shares lodged with the JSE and the ASX

    Friday, 19 December 2025

    Public Holiday in South African, Australia and USA

    Thursday, 25 December 2025

    Public Holiday in South African and Australia

    Friday, 26 December 2025

    Last day for Renergen Shareholders to request to reposition securities between the South African Register and the Australian Register to ensure that it is completed before the Scheme JSE LDT

    Monday, 29 December 2025

    Scheme JSE LDT in Renergen Shares on the JSE

    Monday, 29 December 2025

    Trading in Renergen Shares on the JSE to be suspended from commencement of trade on

    Tuesday, 30 December 2025

    Scheme ASX LDT in CDIs on the ASX

    Tuesday, 30 December 2025

    Scheme Consideration Shares  listed on the JSE at commencement of trade (09:00 SAST) on

    (see note 1 below)

    Tuesday, 30 December 2025

    Trading by Scheme Participants recorded in the South African Register in the entitlements to the Scheme Consideration Shares listed on the JSE on 30 December 2025 will only commence at the commencement of trade (09:00 SAST) on

    (see note 1 below)

    Wednesday, 31 December 2025

    Trading in CDI’s on the ASX to be suspended from commencement of trade on

    Wednesday, 31 December 2025

    Public Holiday in South African, Australia and USA

    Thursday, 1 January 2026

    Announcement of the cash value of fractional entitlements pursuant to Scheme, to be released on SENS by 09:00 SAST and on the ASX by 17:00 AEST on

    (see note 2 below)

    Friday, 2 January 2026

    Scheme Consideration Record Date to be recorded in the Register in order to receive the Scheme Consideration, being 17:00 SAST (in respect of the South African Register) and 19:00 AEST (in respect of the Australian Register) on (see note 1 below)

    Friday, 2 January 2026

    Scheme Implementation Date

    Tuesday, 6 January 2026

    Date of settlement of the Scheme Consideration Shares to Scheme Participants recorded in the South African Register (and thereby having the accounts of the CSDP or Broker of Scheme Participants as applicable, updated with the Scheme Consideration Shares)

    (see note 1 below)

    Tuesday, 6 January 2026

    Date on which Scheme Participants recorded in the South African Register will receive cash payments arising from fractional entitlements

    Tuesday, 6 January 2026

    Date of issuance of the Scheme Consideration Shares in DRS form to the Scheme Participants holding CDIs on the ASPI register of shareholders maintained in the United States

    Monday, 12 January 2026

    Termination of listing of Renergen Shares on the JSE, A2X and ASX at commencement of trade on or about

    Monday, 12 January 2026

    Expected date on which Scheme Participants holding CDIs will be paid cash payments arising from fractional entitlements

    Tuesday, 13 January 2026

     

     
    2

     

     

    Notes:

     

    1.

    Due to the cross-border implementation of the settlement of the Scheme Consideration Shares, the ASPI Common Stock to be issued to Scheme Participants recorded in the South African Register under the Scheme will be issued on the ASPI US share register on the Scheme Consideration Record Date plus 1 (one) Business Day (Monday, 5 January 2026 at approximately 9:00 NY/ET which is 15:00 SAST) and delivered to Computershare US custody account, which will then only allow the Consideration Shares to be settled to Scheme Participants in South Africa by Strate on the Scheme Consideration Record Date plus 2 (two) Business Days (Tuesday, 6 January 2026). As trades in ASPI Common Stock on the JSE is settled in the electronic settlement system used by Strate, settlement of trades takes place 3 (three) Business Days after the date of such trades, the trading in the entitlements to the ASPI Common Stock (which will be delivered to Scheme Participants recorded in the South African Register) will accordingly only commence on the Scheme JSE LDT plus 2 (two) Business Days (Wednesday, 31 December 2025) despite the listing of such ASPI Common Stock taking place on Scheme JSE LDT plus 1 (one) Business Day (Tuesday, 30 December 2025).

     

     

    2.

    As previously set out in the Circular, the cash value of fractional entitlements pursuant to the Scheme will be calculated and announced on the Scheme JSE LDT plus 2 (two) Business Days, which deviation from the JSE corporate action timetable was necessitated by the cross-border implementation of the Scheme.

     

    Forward Looking Statements

     

    This Form 8-K contains “forward-looking statements” within the meaning of the safe harbor provisions of the U.S. Private Securities Litigation Reform Act of 1995. Forward-looking statements can be identified by words like “may,” “will,” “likely,” “should,” “expect,” “anticipate,” “future,” “plan,” “believe,” “intend,” “goal,” “seek,” “estimate,” “project,” “continue,” and variations of such words and similar expressions. These forward-looking statements are not guarantees of future performance and involve risks, assumptions, and uncertainties, including, but not limited to, risks related to: (i) the implementation of the Scheme in the anticipated timeframe or at all; (ii) the ability to realize the anticipated benefits of the proposed acquisition of Renergen; (iii) the ability to successfully integrate the businesses; (iv) disruption from the proposed acquisition of Renergen making it more difficult to maintain business and operational relationships; (v) the negative effects of this announcement or the consummation of the proposed acquisition of Renergen on the market price of Renergen’s or ASPI’s securities; (vi) significant transaction costs and unknown liabilities; (vii) litigation or regulatory actions related to the proposed acquisition of Renergen; and (viii) such other factors as are set forth in the periodic reports filed by ASPI with the U.S. Securities and Exchange Commission (the “SEC”), including but not limited to those described under the heading “Risk Factors” in its annual reports on Form 10-K, quarterly reports on Form 10-Q and any other filings made with the SEC from time to time, which are available via the SEC’s website at www.sec.gov. Should one or more of these risks or uncertainties materialize, or should underlying assumptions prove incorrect, actual results may vary materially from those indicated or anticipated by these forward-looking statements. Therefore, you should not rely on any of these forward-looking statements.

     

     
    3

     

     

    SIGNATURES

     

    Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

     

     

    ASP ISOTOPES INC.

     

     

     

     

    Date: December 18, 2025

    By:

    /s/ Donald G. Ainscow

     

     

    Name:

    Donald G. Ainscow

     

     

    Title:

    Executive Vice President,

    General Counsel and Secretary

     

     

     
    4

     

    Get the next $ASPI 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
    $ASPI

    DatePrice TargetRatingAnalyst
    12/4/2025$13.00Overweight
    Cantor Fitzgerald
    10/4/2024$4.50Buy
    Canaccord Genuity
    12/5/2023$3.25Buy
    H.C. Wainwright
    More analyst ratings

    $ASPI
    Insider Trading

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

    View All

    Interim CEO and COO Ainscow Robert sold $52,341 worth of shares (8,438 units at $6.20), decreasing direct ownership by 0.54% to 1,546,255 units (SEC Form 4)

    4 - ASP Isotopes Inc. (0001921865) (Issuer)

    12/11/25 9:05:17 PM ET
    $ASPI
    Major Chemicals
    Industrials

    Executive Chairman Mann Paul Elliot sold $932,866 worth of shares (162,153 units at $5.75), decreasing direct ownership by 2% to 7,759,538 units (SEC Form 4)

    4 - ASP Isotopes Inc. (0001921865) (Issuer)

    12/3/25 9:42:52 PM ET
    $ASPI
    Major Chemicals
    Industrials

    Director Hunter Ralph L. Jr was granted 10,470 shares (SEC Form 4)

    4 - ASP Isotopes Inc. (0001921865) (Issuer)

    11/28/25 9:53:55 PM ET
    $ASPI
    Major Chemicals
    Industrials

    $ASPI
    Press Releases

    Fastest customizable press release news feed in the world

    View All

    ASP Isotopes Inc. Announces Receipt of Regulatory Approvals for Acquisition of Renergen Limited

    WASHINGTON, Dec. 17, 2025 (GLOBE NEWSWIRE) -- ASP Isotopes Inc. NASDAQ: ASPI ("ASP Isotopes" or the "Company"), an advanced materials company dedicated to the development of technology and processes for the production of isotopes for use in multiple industries, today announced that all required regulatory approvals and clearances have been obtained for ASP Isotopes' proposed offer to acquire all of the issued ordinary shares of JSE-listed Renergen Limited ("Renergen"), pursuant to a scheme of arrangement under South African law pursuant to which Renergen shareholders will receive 0.09196 new ASP Isotopes shares for each Renergen share held on the record date (the "Scheme"). Accordingly, a

    12/17/25 9:30:00 AM ET
    $ASPI
    Major Chemicals
    Industrials

    ASP Isotopes Inc. Announces Paul Mann to Return from Temporary Leave of Absence as Executive Chairman and Chief Executive Officer

    WASHINGTON, Dec. 02, 2025 (GLOBE NEWSWIRE) -- ASP Isotopes Inc. NASDAQ: ASPI ("ASP Isotopes" or the "Company"), an advanced materials company dedicated to the development of technology and processes for the production of isotopes for use in multiple industries, today announced that, effective January 19, 2026, Paul Mann, the founder and Executive Chairman of ASP Isotopes, will resume his role as the Company's Chief Executive Officer and continue as Executive Chairman. On September 29, 2025, it was announced that Mr. Mann would be taking a temporary leave of absence from his Chief Executive Officer duties for health reasons, and that the Company's Board of Directors had appointed Robert Ai

    12/2/25 9:15:00 AM ET
    $ASPI
    Major Chemicals
    Industrials

    ASP Isotopes Announces Endowment of New Photonics Chair at Wits University to Advance Photonics Research

    WASHINGTON, Nov. 28, 2025 (GLOBE NEWSWIRE) -- ASP Isotopes Inc. (NASDAQ:) ("ASP Isotopes" or the "Company"), an advanced materials company focused on developing technologies and processes for the production of isotopes for multiple industries, today announced the establishment of a new Photonics Chair at the University of Witwatersrand, Johannesburg (Wits University), through an endowment under a three-year donation agreement. Dr. Angela Dudley has been named as the inaugural incumbent of the new Photonics Chair. The donation is expected to strengthen South Africa's photonics research capabilities by supporting the pioneering work of the Structured Light Laboratory in Wits' School of Phys

    11/28/25 9:37:06 AM ET
    $ASPI
    Major Chemicals
    Industrials

    $ASPI
    SEC Filings

    View All

    ASP Isotopes Inc. filed SEC Form 8-K: Regulation FD Disclosure

    8-K - ASP Isotopes Inc. (0001921865) (Filer)

    12/18/25 7:34:11 AM ET
    $ASPI
    Major Chemicals
    Industrials

    ASP Isotopes Inc. filed SEC Form 8-K: Other Events, Financial Statements and Exhibits

    8-K - ASP Isotopes Inc. (0001921865) (Filer)

    12/17/25 9:30:38 AM ET
    $ASPI
    Major Chemicals
    Industrials

    ASP Isotopes Inc. filed SEC Form 8-K: Leadership Update

    8-K - ASP Isotopes Inc. (0001921865) (Filer)

    12/8/25 5:00:30 PM ET
    $ASPI
    Major Chemicals
    Industrials

    $ASPI
    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

    Cantor Fitzgerald initiated coverage on ASP Isotopes with a new price target

    Cantor Fitzgerald initiated coverage of ASP Isotopes with a rating of Overweight and set a new price target of $13.00

    12/4/25 8:40:44 AM ET
    $ASPI
    Major Chemicals
    Industrials

    Canaccord Genuity initiated coverage on ASP Isotopes with a new price target

    Canaccord Genuity initiated coverage of ASP Isotopes with a rating of Buy and set a new price target of $4.50

    10/4/24 7:13:36 AM ET
    $ASPI
    Major Chemicals
    Industrials

    H.C. Wainwright initiated coverage on ASP Isotopes with a new price target

    H.C. Wainwright initiated coverage of ASP Isotopes with a rating of Buy and set a new price target of $3.25

    12/5/23 7:36:42 AM ET
    $ASPI
    Major Chemicals
    Industrials

    $ASPI
    Insider Purchases

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

    View All

    Chief Operating Officer Ainscow Robert bought 19,992 shares, increasing direct ownership by 2% to 919,992 units (SEC Form 4)

    4 - ASP Isotopes Inc. (0001921865) (Issuer)

    7/15/24 10:33:49 AM ET
    $ASPI
    Major Chemicals
    Industrials

    Chief Executive Officer Mann Paul Elliot bought 39,984 shares, increasing direct ownership by 0.69% to 5,845,627 units (SEC Form 4)

    4 - ASP Isotopes Inc. (0001921865) (Issuer)

    7/15/24 10:33:33 AM ET
    $ASPI
    Major Chemicals
    Industrials

    Large owner Ak Jensen Investment Management Ltd bought $515,088 worth of shares (161,849 units at $3.18) (SEC Form 4)

    4 - ASP Isotopes Inc. (0001921865) (Issuer)

    7/10/24 5:59:47 PM ET
    $ASPI
    Major Chemicals
    Industrials

    $ASPI
    Leadership Updates

    Live Leadership Updates

    View All

    Skyline Announces Change in Strategy, New Management and First Acquisition in Critical Minerals Space

    Hong Kong, Nov. 06, 2025 (GLOBE NEWSWIRE) --  -Appoints Paul Mann Executive Chairman to Lead New Strategic Direction for the Company  -Company makes first Acquisition in Critical Minerals Space Hong Kong, November 6, 2025 (GLOBE NEWSWIRE) – Skyline Builders Group Holding Limited (NASDAQ:SKBL), a Cayman Islands exempted company (the "Company"), today announced a number of strategic changes to the Company's leadership, strategy and corporate headquarters. Appointment of Paul Mann as Executive Chairman Effective January 1, 2026, Paul E. Mann will become Executive Chairman of the Company. Mr. Mann has a 25-year career as an investor and entrepreneur. He is currently the Founder and Executiv

    11/6/25 8:15:00 AM ET
    $ASPI
    $SKBL
    Major Chemicals
    Industrials
    Engineering & Construction
    Consumer Discretionary

    Nuclear Power Industry Veteran Ralph Hunter Joins Board of Directors of ASP Isotopes Inc. and Board of Managers of Quantum Leap Energy LLC

    WASHINGTON, Sept. 08, 2025 (GLOBE NEWSWIRE) -- ASP Isotopes Inc. NASDAQ: ASPI ("ASP Isotopes" or the "Company"), an advanced materials company dedicated to the development of technology and processes for the production of isotopes for use in multiple industries, today announced the appointment of Ralph L. Hunter, Jr. to the board of directors of ASP Isotopes and the board of managers of Quantum Leap Energy LLC. Ralph L. Hunter, Jr. has over thirty years' experience in the nuclear power industry in leadership roles spanning strategy, operations, and innovation, and he brings expertise in nuclear technology development and commercialization, energy systems, and market development. Mr. Hun

    9/8/25 8:00:00 AM ET
    $ASPI
    Major Chemicals
    Industrials

    ASP Isotopes Issues Letter to Shareholders

    WASHINGTON, Sept. 02, 2025 (GLOBE NEWSWIRE) -- ASP Isotopes Inc. (NASDAQ:ASPI) ("ASP Isotopes" or the "Company"), an advanced materials company dedicated to the development of technology and processes for the production of isotopes for use in multiple industries, today released the following letter to shareholders from its Chairman and CEO, Paul Mann. Dear Fellow Shareholder, The past few months have been exciting and highly rewarding as the Company has brought three isotope enrichment facilities into operation. I am delighted to report that the Company has now shipped the first samples of both Ytterbium-176 and Silicon-28 to customers, a major milestone for the Company that should allo

    9/2/25 7:30:00 AM ET
    $ASPI
    Major Chemicals
    Industrials

    $ASPI
    Financials

    Live finance-specific insights

    View All

    ASP Isotopes to Provide Quarterly Business Update Call on November 21, 2025 at 8:30am EST

    WASHINGTON, Nov. 17, 2025 (GLOBE NEWSWIRE) -- ASP Isotopes Inc. (NASDAQ:ASPI) ("ASP Isotopes" or the "Company"), an advanced materials company focused on developing technologies and processes for the production of isotopes for multiple industries, today announced it will hold a quarterly business update conference call and webcast on Friday, November 21, 2025 at 8:30 a.m. (Eastern Time). Conference Call Information To participate in this event, please log on or dial in approximately 5 minutes before the beginning of the call. Webcast Link https://events.q4inc.com/attendee/428149635 Participant Dial-In Details Date: November 21, 2025Time: 8:30 a.m. ESTDial in: USA / International Tol

    11/17/25 4:31:40 PM ET
    $ASPI
    Major Chemicals
    Industrials

    ASP Isotopes Inc. Hosts South African Investors in Advance of Secondary Listing on the Johannesburg Stock Exchange (JSE) and Provides Updates on its Isotope Production Plants

    - ASP Isotopes will host an investor access event on Tuesday, August 26, 2025 at its Pretoria facilities for approximately 30 South African investors. - ASP Isotopes expects to have a secondary listing on the Johannesburg Stock Exchange (JSE) and its common stock is expected to commence trading on the JSE on Wednesday, August 27, 2025. - ASP Isotopes has shipped its first samples of enriched Silicon-28 to a US-based customer and expects to complete the enrichment of the first samples of Ytterbium 176 during August 2025. - ASP Isotopes Management Team will feature on a RedChip Investor call at 4:15 pm EDT on Thursday, August 28, 2025. Ryno Pretorius, CEO of Quantum Leap Energy, and Stefano

    8/26/25 8:00:00 AM ET
    $ASPI
    Major Chemicals
    Industrials

    ASP Isotopes Inc. and IsoBio, Inc. Announce Series Seed Funding of IsoBio, Inc. to Advance Innovative Antibody-Isotope Conjugates (AICsTM) For Cancer Treatment

    - IsoBio, Inc. (IsoBio) is a U.S.-based radiotherapeutic development company focused on developing a broad pipeline of mAb-based radioisotope therapeutics, known as antibody-isotope conjugates (AICsTM), targeting both derisked and novel tumor antigens for patients in need of new cancer therapies. - IsoBio has closed its initial Series Seed financing round, raising $5 million from ASP Isotopes Inc. (ASPI). - The strategic collaboration contemplates future manufacturing opportunities for PET Labs (ASPI's nuclear medicine subsidiary). - IsoBio plans to leverage the technology and global manufacturing capabilities developed by ASPI to reduce the uncertainty of isotope supply chain/manufacturi

    7/28/25 8:31:17 AM ET
    $ASPI
    $IMNM
    Major Chemicals
    Industrials
    Biotechnology: Pharmaceutical Preparations
    Health Care

    $ASPI
    Large Ownership Changes

    This live feed shows all institutional transactions in real time.

    View All

    SEC Form SC 13G filed by ASP Isotopes Inc.

    SC 13G - ASP Isotopes Inc. (0001921865) (Subject)

    11/14/24 3:01:19 PM ET
    $ASPI
    Major Chemicals
    Industrials

    Amendment: SEC Form SC 13G/A filed by ASP Isotopes Inc.

    SC 13G/A - ASP Isotopes Inc. (0001921865) (Subject)

    11/7/24 4:15:14 PM ET
    $ASPI
    Major Chemicals
    Industrials

    SEC Form SC 13G filed by ASP Isotopes Inc.

    SC 13G - ASP Isotopes Inc. (0001921865) (Subject)

    11/3/23 4:15:20 PM ET
    $ASPI
    Major Chemicals
    Industrials