• 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

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

    3/6/25 9:55:13 PM ET
    $KTTA
    Biotechnology: Pharmaceutical Preparations
    Health Care
    Get the next $KTTA alert in real time by email



    SECURITIES AND EXCHANGE COMMISSION
    Washington, D.C. 20549


    SCHEDULE 13D

    Under the Securities Exchange Act of 1934

    (Amendment No. 1)


    Pasithea Therapeutics Corp.

    (Name of Issuer)


    Common Stock, par value $0.0001 per share

    (Title of Class of Securities)


    70261F202

    (CUSIP Number)


    Tiago Reis Marques
    Chief Executive Officer, 1111 Lincoln Road, Suite 500
    Miami Beach, FL, 33139
    (702) 514-4174

    (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)
    03/01/2025

    (Date of Event Which Requires Filing of This Statement)


    If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box. Checkbox not checked

    The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).






    SCHEDULE 13D

    CUSIP No.
    70261F202


    1 Name of reporting person

    Lawrence Steinman
    2Check the appropriate box if a member of a Group (See Instructions)

    Checkbox not checked  (a)
    Checkbox not checked  (b)
    3SEC use only
    4 Source of funds (See Instructions)

    PF
    5 Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

    Checkbox not checked
    6Citizenship or place of organization

    UNITED STATES
    Number of Shares Beneficially Owned by Each Reporting Person With:
    7Sole Voting Power

    83,858.00
    8Shared Voting Power

    0.00
    9Sole Dispositive Power

    83,858.00
    10Shared Dispositive Power

    0.00
    11Aggregate amount beneficially owned by each reporting person

    83,858.00
    12Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

    Checkbox not checked
    13Percent of class represented by amount in Row (11)

    3.1 %
    14Type of Reporting Person (See Instructions)

    IN

    Comment for Type of Reporting Person:
    See Item 5 for additional information.


    SCHEDULE 13D

    Item 1.Security and Issuer
    (a)Title of Class of Securities:

    Common Stock, par value $0.0001 per share
    (b)Name of Issuer:

    Pasithea Therapeutics Corp.
    (c)Address of Issuer's Principal Executive Offices:

    1111 Lincoln Road, Suite 500, Miami Beach, FLORIDA , 33139.
    Item 1 Comment:
    Item 1 of the Schedule 13D is hereby supplemented as follows: This Amendment No. 1 (this "Amendment") amends and supplements the Schedule 13D filed by the Reporting Person (as defined in Item 2 of the Schedule 13D) with the Securities and Exchange Commission (the "SEC") on June 8, 2023 (the "Schedule 13D"). Except as specifically provided herein, this Amendment does not modify or amend any of the information previously reported on the Schedule 13D. Capitalized terms used and not otherwise defined herein shall have the meanings ascribed to such terms in the Schedule 13D. Information given in response to each item shall be deemed incorporated by reference in all other items, as applicable.
    Item 3.Source and Amount of Funds or Other Consideration
     
    Item 3 of the Schedule 13D is hereby supplemented as follows: The information contained in rows 7, 8, 9, 10, 11 and 13 of the cover pages of this Amendment is hereby incorporated by reference in its entirety into this Item 3. On March 1, 2024, the Issuer granted the Reporting Person stock options to purchase 7,500 shares of Common Stock, which vest over three years, in connection with his position as the Executive Chairman of the Board of Directors for no consideration.
    Item 5.Interest in Securities of the Issuer
    (a)
    Item 5 of the Schedule 13D is hereby supplemented as follows: The information contained in rows 7, 8, 9, 10, 11 and 13 of the cover pages of this Amendment is hereby incorporated by reference in its entirety into this Item 5. As of March 1, 2025 and the date hereof, the Reporting Person may be deemed to beneficially own an aggregate of 83,858 shares of Common Stock of the Issuer, consisting of (i) 66,358 shares of Common Stock, (ii) warrants to purchase up to 10,000 shares of Common Stock, and (iii) vested stocks options exercisable for up to 7,500 shares of Common Stock. This excludes 5,000 shares of Common Stock underlying stock options that are not exercisable within 60 days as of March 1, 2025 and the date hereof. As a result of the foregoing, for purposes of Rule 13d-3 under the Securities Exchange Act of 1934, as amended, the Reporting Person may be deemed to beneficially own 83,858 shares of Common Stock, representing 3.1% of the Issuer's outstanding shares of Common Stock (based on 2,705,263 shares of Common Stock issued and outstanding as of March 1, 2025 and the date hereof, as reported directly by the Issuer to the Reporting Person).
    (b)
    As of March 1, 2025 and the date hereof, the Reporting Person may be deemed to be the beneficial owner of an aggregate of 83,858 shares of Common Stock, all of which the Reporting Person has the sole voting and dispositive power.
    (c)
    On March 1, 2025, 2,500 shares of Common Stock underlying stock options that the Issuer previously granted to the Reporting Person in connection with his position as the Executive Chairman of the Board of Directors vested. There were no other transactions by the Reporting Person in shares of Common Stock during the period commencing sixty (60) days prior to or on March 1, 2025 and the date hereof.
    (e)
    The Reporting Person ceased to be the beneficial owner of five percent (5%) or more of the issued and outstanding Common Stock of the Issuer on March 1, 2025.
    Item 6.Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer
     
    Item 6 of the Schedule 13D is hereby amended and restated as follows: The information contained in rows 7, 8, 9, 10, 11 and 13 of the cover pages of the Schedule 13D and this Amendment and the information set forth in or incorporated by reference in Item 2, Item 3, Item 4 and Item 5 of the Schedule 13D and this Amendment, as applicable, is hereby incorporated by reference in its entirety into this Item 6. The Reporting Person, in his capacity as the Executive Chairman of the Board of Directors of the Issuer may be entitled to receive cash compensation and equity compensation, including stock option or other equity awards, pursuant to the Issuer's 2023 Stock Incentive Plan. The Reporting Person will serve as the Executive Chairman of the Board of Directors of the Issuer until his successor has been elected and qualified or until the earlier of his resignation or removal.

        SIGNATURE 
     
    After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

     
    Lawrence Steinman
     
    Signature:/s/ Lawrence Steinman
    Name/Title:Lawrence Steinman
    Date:03/06/2025
    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
    Press Releases

    Fastest customizable press release news feed in the world

    View All

    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

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

    Extends cash runway through at least the first half of 2028Led by Vivo Capital, Janus Henderson Investors, Coastlands Capital, Columbia Threadneedle Investments, Adage Capital Partners, and Squadron Capital Management MIAMI, Nov. 28, 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 pricing of a public offering of 80,000,000 shares of the Company's common stock (or pre-funded warrants in lieu thereof) at an offering pr

    11/28/25 9:20:00 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
    SEC Filings

    View All

    SEC Form S-8 filed by Pasithea Therapeutics Corp.

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

    1/30/26 4:15:51 PM ET
    $KTTA
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Pasithea Therapeutics Corp. filed SEC Form 8-K: Leadership Update, Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Submission of Matters to a Vote of Security Holders, Financial Statements and Exhibits

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

    1/28/26 4:15:46 PM ET
    $KTTA
    Biotechnology: Pharmaceutical Preparations
    Health Care

    SEC Form EFFECT filed by Pasithea Therapeutics Corp.

    EFFECT - Pasithea Therapeutics Corp. (0001841330) (Filer)

    1/28/26 12:15:08 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
    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
    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
    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

    $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