• 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

    Pasithea Therapeutics Corp. filed SEC Form 8-K: Changes in Registrant's Certifying Accountant, Financial Statements and Exhibits

    4/25/25 5:02:33 PM ET
    $KTTA
    Biotechnology: Pharmaceutical Preparations
    Health Care
    Get the next $KTTA alert in real time by email
    false 0001841330 0001841330 2025-04-23 2025-04-23 0001841330 KTTA:CommonStockParValue0.0001PerShareMember 2025-04-23 2025-04-23 0001841330 KTTA:WarrantsToPurchaseSharesOfCommonStockParValue0.0001PerShareMember 2025-04-23 2025-04-23 iso4217:USD xbrli:shares iso4217:USD xbrli: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): April 23, 2025

     

    PASITHEA THERAPEUTICS CORP.
    (Exact Name of registrant as Specified in its Charter)

      

    Delaware   001-40804   85-1591963

    (State or Other Jurisdiction

    of incorporation)

     

    (Commission File Number)

     

    (IRS Employer

    Identification No.)

      

    1111 Lincoln Road, Suite 500

    Miami, FL 33139

    (Address of Principal Executive Offices) (Zip Code)

     

    (786) 977-3380

    (Registrant’s telephone number, including area code)

     

    N/A

    (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 Company under any of the following provisions (see General Instruction A.2. below):

     

    ☐ 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 $0.0001 per share   KTTA   The Nasdaq Capital Market
    Warrants to purchase shares of Common Stock, par value $0.0001 per share   KTTAW   The Nasdaq Capital Market

     

    Indicate by check mark whether the Company is an emerging growth company as defined by Rule 405 of the Securities Act of 1933 (17 §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).

     

    Emerging growth company ☒

     

    If an emerging growth company, indicate by check mark if the Company 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 4.01. Changes in Registrant’s Certifying Accountant.

     

    Based on information provided by Marcum LLP (“Marcum”), the independent registered public accounting firm of Pasithea Therapeutics Corp., a Delaware corporation (the “Company”), CBIZ CPAs P.C. (“CBIZ”) acquired the attest business of Marcum, effective November 1, 2024. Marcum continued to serve as the Company’s independent registered public accounting firm through April 23, 2025. On April 23, 2025, the Company dismissed Marcum as the Company’s independent registered accounting firm and, with the approval of the Audit Committee of the Company’s Board of Directors, engaged CBIZ as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2025. 

     

    The reports of Marcum regarding the Company’s financial statements for the fiscal years ended December 31, 2024 and December 31, 2023 did not contain any adverse opinion or disclaimer of opinion and was not qualified or modified as to uncertainty, audit scope, or accounting principles, except for the inclusion in each of an explanatory paragraph regarding the substantial doubt about the Company’s ability to continue as a going concern.

     

    During the fiscal years ended December 31, 2024 and December 2023, and the subsequent interim period through April 23, 2025, there were no (1) disagreements (as defined in Item 304(a)(1)(iv) of Regulation S-K and the related instructions) between the Company and Marcum on any matter of accounting principles or practices, financial statement disclosure or auditing scope or procedure, which would have caused it to make reference to the subject matter of such a disagreement in connection with its audit reports on the Company’s financial statements for such years, or (2) reportable events (as described in Item 304(a)(1)(v) of Regulation S-K), except for the material weakness related to the review of the annual income tax provision prepared by a third-party firm during the audit process for the Company’s fiscal year ended December 31, 2023 and the lack of effective controls to sufficiently review the completeness and accuracy of the annual tax provision in footnotes to the Company’s financial statements for the year ended December 31, 2023, which was identified in connection with the Company’s preparation of its financial statements for the fiscal year ended December 31, 2024 and remediated as of December 31, 2024.

     

    During the fiscal years ended December 31, 2024 and December 31, 2023, and through April 23, 2025, neither the Company nor anyone on the Company’s behalf consulted with CBIZ regarding (i) the application of accounting principles to a specific completed or contemplated transaction or regarding the type of audit opinions that might be rendered by CBIZ on the Company’s financial statements, and CBIZ did not provide any written or oral advice that was an important factor considered by the Company in reaching a decision as to any such accounting, auditing, or financial reporting issue or (ii) any matter that was either the subject of a disagreement (as defined in Item 304(a)(1)(iv) of Regulation S-K and the related instructions), as that term is described in Item 304(a)(1)(iv) of Regulation S-K, or a reportable event, as that term is defined in Item 304(a)(1)(v) of Regulation S-K.

     

    The Company provided Marcum with a copy of this Current Report on Form 8-K prior to its filing with the U.S. Securities and Exchange Commission (the “SEC”) and requested that Marcum furnish the Company with a letter addressed to the SEC, pursuant to Item 304(a)(3) of Regulation S-K, stating whether it agrees with the above statements and, if it does not agree, the respects in which it does not agree. A copy of the letter, dated April 23, 2025, is filed as Exhibit 16.1 (which is incorporated by reference herein) to this Current Report on Form 8-K.

     

    1

     

     

    Item 9.01. Financial Statements and Exhibits.

     

    (d) Exhibits.

     

    Exhibit No.   Description
    16.1   Letter from Marcum dated April 23, 2025.
    104   Cover Page Interactive Data File (embedded within the Inline XBRL document).

      

    2

     

    SIGNATURE

     

    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.

     

      Pasithea Therapeutics Corp.
         
      By: /s/ Tiago Reis Marques
      Name:  Dr. Tiago Reis Marques
      Title:  Chief Executive Officer
         
    Date: April 25, 2025    

     

    3

    Get the next $KTTA 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
    $KTTA

    DatePrice TargetRatingAnalyst
    12/14/2021$3.25Buy
    EF Hutton
    More analyst ratings

    $KTTA
    Insider Purchases

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

    View All

    Director Steinman Lawrence bought $100,000 worth of shares (133,333 units at $0.75), increasing direct ownership by 201% to 199,691 units (SEC Form 4)

    4 - Pasithea Therapeutics Corp. (0001841330) (Issuer)

    12/1/25 9:07:14 AM ET
    $KTTA
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Chief Executive Officer Marques Tiago bought $25,000 worth of shares (33,333 units at $0.75), increasing direct ownership by 83% to 73,334 units (SEC Form 4)

    4 - Pasithea Therapeutics Corp. (0001841330) (Issuer)

    12/1/25 8:56:56 AM ET
    $KTTA
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Director Dumesnil Simon bought $25,000 worth of shares (33,333 units at $0.75), increasing direct ownership by 1,333% to 35,833 units (SEC Form 4)

    4 - Pasithea Therapeutics Corp. (0001841330) (Issuer)

    12/1/25 8:54:08 AM ET
    $KTTA
    Biotechnology: Pharmaceutical Preparations
    Health Care

    $KTTA
    Insider Trading

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

    View All

    Director Steinman Lawrence bought $100,000 worth of shares (133,333 units at $0.75), increasing direct ownership by 201% to 199,691 units (SEC Form 4)

    4 - Pasithea Therapeutics Corp. (0001841330) (Issuer)

    12/1/25 9:07:14 AM ET
    $KTTA
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Chief Financial Officer Schneiderman Daniel H was granted 26,667 shares (SEC Form 4)

    4 - Pasithea Therapeutics Corp. (0001841330) (Issuer)

    12/1/25 9:04:30 AM ET
    $KTTA
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Chief Executive Officer Marques Tiago bought $25,000 worth of shares (33,333 units at $0.75), increasing direct ownership by 83% to 73,334 units (SEC Form 4)

    4 - Pasithea Therapeutics Corp. (0001841330) (Issuer)

    12/1/25 8:56:56 AM ET
    $KTTA
    Biotechnology: Pharmaceutical Preparations
    Health Care

    $KTTA
    Press Releases

    Fastest customizable press release news feed in the world

    View All

    Pasithea Therapeutics to Present at the Oppenheimer 36th Annual Healthcare Life Sciences Conference

    – Virtual presentation scheduled for Thursday, February 26, 2026, at 4:00 PM ET –– Webcast may be accessed here – MIAMI, Feb. 17, 2026 (GLOBE NEWSWIRE) -- Pasithea Therapeutics Corp. (NASDAQ:KTTA) ("Pasithea" or the "Company"), a clinical-stage biotechnology company developing PAS-004, a next-generation macrocyclic oral MEK inhibitor for the treatment of NF1-associated plexiform neurofibromas (NF1-PN), today announced that Chief Executive Officer Tiago Reis Marques will present at the Oppenheimer 36th Annual Healthcare Life Sciences Conference, being held in a virtual format February 25–26, 2026. The Company's presentation is scheduled for Thursday, Feb 26 at 4:00-4:30 PM ET in Track 2,

    2/17/26 7:01:00 AM ET
    $KTTA
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Pasithea Therapeutics Provides Outlook on PAS-004 Clinical Programs and Data Release Timelines

    MIAMI, Jan. 13, 2026 (GLOBE NEWSWIRE) -- Pasithea Therapeutics Corp. (NASDAQ:KTTA) ("Pasithea" or the "Company"), a clinical-stage biotechnology company developing PAS-004, a next-generation oral macrocyclic MEK inhibitor for the treatment of neurofibromatosis type 1 associated plexiform neurofibromas (NF1-PN), today provided updated timelines on its ongoing clinical trials in advanced cancer and adult NF1-PN patients. Ongoing Phase 1/1b clinical trial in adult patients with NF1-PN (NCT06961565): Pasithea has completed enrollment of 12 patients through the first 4 dose cohorts (4, 8, 12 and 18 mg tablets) in Part A of the study.    The Company plans to present data in the second half of

    1/13/26 7:01:00 AM ET
    $KTTA
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Pasithea Therapeutics Announces Closing of $60 Million Public Offering of Common Stock

    Extends cash runway through at least the first half of 2028Led by healthcare-dedicated investors, including Vivo Capital, Janus Henderson Investors, Coastlands Capital, Columbia Threadneedle Investments, Adage Capital Partners and Squadron Capital Management MIAMI, Dec. 02, 2025 (GLOBE NEWSWIRE) -- Pasithea Therapeutics Corp. ("Pasithea" or the "Company") (NASDAQ:KTTA, KTTAW)), a clinical-stage biotechnology company developing PAS-004, a next-generation macrocyclic oral MEK inhibitor for the treatment of neurofibromatosis type 1-associated plexiform neurofibromas (NF1-PN), today announced the closing of its previously announced public offering of 80,000,000 shares of the Company's common

    12/2/25 7:00:00 AM ET
    $KTTA
    Biotechnology: Pharmaceutical Preparations
    Health Care

    $KTTA
    SEC Filings

    View All

    Pasithea Therapeutics Corp. filed SEC Form 8-K: Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing

    8-K - Pasithea Therapeutics Corp. (0001841330) (Filer)

    2/20/26 5:00:53 PM ET
    $KTTA
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Amendment: SEC Form SCHEDULE 13G/A filed by Pasithea Therapeutics Corp.

    SCHEDULE 13G/A - Pasithea Therapeutics Corp. (0001841330) (Subject)

    2/17/26 2:48:58 PM ET
    $KTTA
    Biotechnology: Pharmaceutical Preparations
    Health Care

    SEC Form SCHEDULE 13G filed by Pasithea Therapeutics Corp.

    SCHEDULE 13G - Pasithea Therapeutics Corp. (0001841330) (Subject)

    2/17/26 10:10:00 AM ET
    $KTTA
    Biotechnology: Pharmaceutical Preparations
    Health Care

    $KTTA
    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

    EF Hutton initiated coverage on Pasithea Therapeutics with a new price target

    EF Hutton initiated coverage of Pasithea Therapeutics with a rating of Buy and set a new price target of $3.25

    12/14/21 8:32:07 AM ET
    $KTTA
    Biotechnology: Pharmaceutical Preparations
    Health Care

    $KTTA
    Leadership Updates

    Live Leadership Updates

    View All

    Pasithea Therapeutics Appoints Expert in ETS2-driven Inflammatory Disease to Scientific Advisory Board

    MIAMI, June 11, 2025 (GLOBE NEWSWIRE) -- Pasithea Therapeutics Corp. (NASDAQ:KTTA) ("Pasithea" or the "Company"), a clinical-stage biotechnology company developing PAS-004, a next-generation macrocyclic MEK inhibitor, today announced the appointment of Dr. James Lee to its scientific advisory board (SAB) to help guide development of PAS-004 for the treatment of ETS2 pathway inflammatory diseases including inflammatory bowel disease (IBD), ulcerative colitis, Crohn's disease, primary sclerosing cholangitis and ankylosing spondylitis. Dr. Lee is the lead author on a 2024 Nature publication that identified ETS2 as a central regulator of macrophage-driven inflammation in IBD and other indic

    6/11/25 7:02:00 AM ET
    $KTTA
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Pasithea Therapeutics Announces Appointment of Dr. Rebecca Brown to its Scientific Advisory Board

    MIAMI, Sept. 03, 2024 (GLOBE NEWSWIRE) -- Pasithea Therapeutics Corp. (NASDAQ:KTTA) ("Pasithea" or the "Company"), a clinical-stage biotechnology company developing PAS-004, a next-generation macrocyclic MEK inhibitor, for the treatment of neurofibromatosis type 1 (NF1) and other indications, announced today that Rebecca Brown, M.D., Ph.D. has been appointed as a member of the Company's Scientific Advisory Board. Dr. Brown is currently Director of the Neurofibromatosis Clinic at The Mount Sinai Hospital and Assistant Professor in the Department of Neurology (Division of Neuro-Oncology), Internal Medicine, and Neurosurgery at the institution. Dr. Brown will contribute scientific insights

    9/3/24 8:02:00 AM ET
    $KTTA
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Pasithea Therapeutics Announces Results from 2023 Annual Meeting

    SOUTH SAN FRANCISCO, Calif. and MIAMI, Dec. 19, 2023 (GLOBE NEWSWIRE) -- Pasithea Therapeutics Corp. ("Pasithea" or the "Company") (NASDAQ:KTTA), today announced that it held its annual meeting of stockholders (the "Annual Meeting") on December 19, 2023. Over 70% of the Company's shares of common stock were represented at the Annual Meeting. More than 95% of shares voted were cast "for" the election of directors (Proposal 1), and over 85% "for" Proposals 2, 3 and 6 (collectively, the "Approved Proposals"). The Approved Proposals related to the following matters: appointment of the Company's proposed slate of directors;-  Dr. Tiago Reis Marques;-  Prof. Larry Steinman;-  Simon Dume

    12/19/23 5:19:00 PM ET
    $KTTA
    Biotechnology: Pharmaceutical Preparations
    Health Care

    $KTTA
    Large Ownership Changes

    This live feed shows all institutional transactions in real time.

    View All

    SEC Form SC 13G filed by Pasithea Therapeutics Corp.

    SC 13G - Pasithea Therapeutics Corp. (0001841330) (Subject)

    11/14/24 3:32:41 PM ET
    $KTTA
    Biotechnology: Pharmaceutical Preparations
    Health Care

    SEC Form SC 13G/A filed by Pasithea Therapeutics Corp. (Amendment)

    SC 13G/A - Pasithea Therapeutics Corp. (0001841330) (Subject)

    1/13/23 8:02:14 AM ET
    $KTTA
    Biotechnology: Pharmaceutical Preparations
    Health Care

    SEC Form SC 13D/A filed by Pasithea Therapeutics Corp. (Amendment)

    SC 13D/A - Pasithea Therapeutics Corp. (0001841330) (Subject)

    1/10/23 3:55:25 PM ET
    $KTTA
    Biotechnology: Pharmaceutical Preparations
    Health Care

    $KTTA
    Financials

    Live finance-specific insights

    View All

    Pasithea Therapeutics Acquires AlloMek Therapeutics

    -- Expands CNS Product Portfolio with Addition of CIP-137401, a Macrocyclic, Next-Generation MEK Inhibitor -- Plans to File IND Application with the FDA to Enter the Clinic in 2H 2023 -- Plans to Initiate a Phase 1 Clinical Trial in the U.S. for Neurofibromatosis Type 1 (NF1) -- Management to Host an Investor Webcast Today at 9 a.m. ET MIAMI BEACH, Fla., Oct. 12, 2022 (GLOBE NEWSWIRE) -- Pasithea Therapeutics Corp. (NASDAQ:KTTA) ("Pasithea" or the "Company"), a biotechnology company focused on the discovery, research and development of innovative treatments for central nervous system (CNS) disorders, today announced that it acquired AlloMek Therapeutics, LLC ("AlloMek"), a privately-he

    10/12/22 8:00:00 AM ET
    $KTTA
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Pasithea Therapeutics Acquires Alpha-5 Integrin, LLC

    - Alpha-5 is a potentially first-in-class monoclonal antibody for the treatment of amyotrophic lateral sclerosis (ALS) and other neurological diseases -- Expands pipeline across Pasithea's core therapeutic areas to drive enhanced growth -- Closing consideration of 3.26 million shares of Pasithea common stock -- Pasithea to hold a webcast on June 22 at 9 a.m. ET to discuss the transaction - MIAMI BEACH, Fla., June 22, 2022 (GLOBE NEWSWIRE) -- Pasithea Therapeutics Corp. (NASDAQ:KTTA) ("Pasithea" or the "Company"), today announced its acquisition of Alpha-5 integrin, LLC ("Alpha-5"), a privately-held preclinical-stage company developing a monoclonal antibody (mAbs) for the treatment of am

    6/22/22 8:00:00 AM ET
    $KTTA
    Biotechnology: Pharmaceutical Preparations
    Health Care