• 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: OS Therapies Incorporated filed SEC Form 8-K: Financial Statements and Exhibits

    7/7/26 9:18:33 AM ET
    $OSTX
    Biotechnology: Pharmaceutical Preparations
    Health Care
    Get the next $OSTX alert in real time by email
    true 0001795091 0001795091 2026-06-30 2026-06-30 iso4217:USD xbrli:shares iso4217:USD xbrli:shares

     

     

    UNITED STATES

    SECURITIES AND EXCHANGE COMMISSION

    WASHINGTON, DC 20549

     

    FORM 8-K/A
    (Amendment No. 1)

     

    CURRENT REPORT

    Pursuant to Section 13 or 15(d) of the

    Securities Exchange Act of 1934

     

    Date of Report (Date of earliest event reported): June 30, 2026

     

    OS THERAPIES INCORPORATED

    (Exact name of registrant as specified in its charter)

     

    Delaware   001-42195   82-5118368
    (State or other jurisdiction
    of incorporation)
      (Commission File Number)   (IRS Employer
    Identification No.)

     

    115 Pullman Crossing Road, Suite 103
    Grasonville, Maryland
      21638
    (Address of Principal Executive Offices)   (Zip Code)

     

    Registrant’s telephone number, including area code: (410) 297-7793

     

    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 registrant 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 $0.001 per share   OSTX   NYSE American

     

    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. ☐

     

     

     

     

     

     

    AMENDMENT NO. 1
    TO

    CURRENT REPORT ON FORM 8-K/A

     

    OS Therapies Incorporated

     

    June 30, 2026

      

    EXPLANATORY NOTE

     

    This Amendment No. 1 on Form 8-K/A (this “Amendment”) amends the Current Report on Form 8-K filed by OS Therapies Incorporated (the “Company”) with the Securities and Exchange Commission (the “SEC”) on July 2, 2026 (the “Original Form 8-K”). This Amendment is being filed solely to include as Exhibit 10.3 the side letter, dated June 30, 2026, between the Company and Leonite Fund I, LP, which was entered into in connection with the private placement transaction described in the Original Form 8-K and was inadvertently omitted from the exhibits filed with the Original Form 8-K. Except as described above, this Amendment does not amend, update or otherwise modify the disclosures contained in the Original Form 8-K, and this Amendment should be read in conjunction with the Original Form 8-K.

      

    Item 9.01 Financial Statements and Exhibits.

     

    (d) Exhibits.

     

    Exhibit
    Number  
      Description  
    4.1*   Form of Senior Secured Convertible Promissory Note (incorporated by reference to Exhibit 4.1 to the Company’s Current Report on Form 8-K filed with the SEC on July 2, 2026).
    4.2   Form of Common Stock Purchase Warrant (incorporated by reference to Exhibit 4.2 to the Company’s Current Report on Form 8-K filed with the SEC on July 2, 2026).
    10.1*   Securities Purchase Agreement, dated as of June 30, 2026, among OS Therapies Incorporated, OS Animal Health Inc., OS Therapies UK LTD and Leonite Fund I, LP (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed with the SEC on July 2, 2026).
    10.2   Pledge and Security Agreement, dated as of June 30, 2026, among OS Therapies Incorporated, OS Animal Health Inc., OS Therapies UK LTD and Leonite Fund I, LP (incorporated by reference to Exhibit 10.2 to the Company’s Current Report on Form 8-K filed with the SEC on July 2, 2026).
    10.3   Side Letter, dated June 30, 2026, between OS Therapies Incorporated and Leonite Fund I, LP.
    99.1   Press Release issued by OS Therapies Incorporated on July 2, 2026 (incorporated by reference to Exhibit 99.1 to the Company’s Current Report on Form 8-K filed with the SEC on July 2, 2026).
    104   Cover Page Interactive Data File (embedded within the Inline XBRL document).

     

    * Pursuant to Item 601(a)(5) of Regulation S-K, certain schedules and exhibits have been omitted. The registrant agrees to furnish supplementally a copy of any omitted schedule or exhibit to the SEC upon its request.

     

    1

     

     

    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.

     

      OS THERAPIES INCORPORATED
       
    Dated: July 7, 2026 By: /s/ Paul A. Romness, MPH
        Name: Paul A. Romness, MPH
        Title: President and Chief Executive Officer

     

    2

     

    Get the next $OSTX 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
    $OSTX

    DatePrice TargetRatingAnalyst
    7/9/2026$7.00Buy
    Roth Capital
    4/2/2025$19.00Buy
    Lake Street
    More analyst ratings

    $OSTX
    Press Releases

    Fastest customizable press release news feed in the world

    View All

    OS Therapies Accepts New FDA Meeting Request to Review Biomarker Data as Part of BEST Program

    CDER meeting expected to take place in the summer of 2026 in parallel with CBER's Type B Statistical Methods MeetingNew York, New York and Rockville, Maryland--(Newsfile Corp. - July 8, 2026) - OS Therapies, Inc. (NYSE:OSTX) ("OS Therapies" or "the Company"), the world leader in gene-edited, Listeria-based cancer immunotherapies, today announced that it has accepted a new Meeting Request from the U.S. Food and Drug Administration (FDA)'s Center for Drug Evaluation and Research (CDER) to review the Company's pharmacodynamic response biomarker data (the "OST-HER2 Biomarker Data") – patent pending. CDER's Biomarkers, EndpointS, and other Tools (BEST) resources is part of its Biomarker Qualifica

    7/8/26 9:00:00 AM ET
    $OSTX
    Biotechnology: Pharmaceutical Preparations
    Health Care

    OS Therapies Third Quarter 2026 Corporate Outlook

    Upcoming Type B Statistical Methods Meeting expected to set stage for FDA to align with EMA and MHRA on use of Fall 2026 3-year overall survival data combined with biomarkers to support early market accessNew York, New York and Rockville, Maryland--(Newsfile Corp. - July 6, 2026) - OS Therapies, Inc. (NYSE:OSTX) ("OS Therapies" or "the Company"), the world leader in gene-edited, Listeria-based cancer immunotherapies, today provides a third quarter 2026 corporate outlook. The outlook focuses on upcoming clinical and regulatory milestones for the Company's lead program OST-HER2 in the prevention or delay of recurrence in fully resected, pulmonary metastatic osteosarcoma (the "Metastatic Osteos

    7/6/26 9:00:00 AM ET
    $OSTX
    Biotechnology: Pharmaceutical Preparations
    Health Care

    OS Therapies Appoints Dr. Craig Eagle to Board of Directors

    Company secures $10 million line of credit supported by OS Therapies UK tax creditsNew York, New York and Rockville, Maryland--(Newsfile Corp. - July 2, 2026) - OS Therapies, Inc. (NYSE:OSTX) ("OS Therapies" or "the Company"), the world leader in gene-edited, Listeria-based cancer immunotherapies, today announced that it has appointed Dr. Craig Eagle to the Company's Board of Directors. Dr. Eagle currently serves as the Company's Chief Medical Advisor. The Company also thanks Karim Galzahr for his service to the Board of Directors and will continue as a member of the Company's advisory board."Having enjoyed participating in recent U.S., European and U.K. regulatory meetings as we prepare for

    7/2/26 7:30:00 AM ET
    $OSTX
    Biotechnology: Pharmaceutical Preparations
    Health Care

    $OSTX
    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

    Roth Capital initiated coverage on OS Therapies with a new price target

    Roth Capital initiated coverage of OS Therapies with a rating of Buy and set a new price target of $7.00

    7/9/26 9:30:08 AM ET
    $OSTX
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Lake Street initiated coverage on OS Therapies with a new price target

    Lake Street initiated coverage of OS Therapies with a rating of Buy and set a new price target of $19.00

    4/2/25 8:01:55 AM ET
    $OSTX
    Biotechnology: Pharmaceutical Preparations
    Health Care

    $OSTX
    Insider Trading

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

    View All

    Amendment: SEC Form 5 filed by Romness Paul A.

    5/A - OS Therapies Inc (0001795091) (Issuer)

    5/15/26 6:30:02 PM ET
    $OSTX
    Biotechnology: Pharmaceutical Preparations
    Health Care

    SEC Form 4 filed by Director Mckean-Dieser Avril Suzette

    4 - OS Therapies Inc (0001795091) (Issuer)

    2/13/26 4:43:41 PM ET
    $OSTX
    Biotechnology: Pharmaceutical Preparations
    Health Care

    SEC Form 4 filed by Director Search Theodore F.

    4 - OS Therapies Inc (0001795091) (Issuer)

    2/13/26 4:43:05 PM ET
    $OSTX
    Biotechnology: Pharmaceutical Preparations
    Health Care

    $OSTX
    SEC Filings

    View All

    SEC Form D filed by OS Therapies Incorporated

    D - OS Therapies Inc (0001795091) (Filer)

    7/15/26 7:36:48 PM ET
    $OSTX
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Amendment: OS Therapies Incorporated filed SEC Form 8-K: Financial Statements and Exhibits

    8-K/A - OS Therapies Inc (0001795091) (Filer)

    7/7/26 9:18:33 AM ET
    $OSTX
    Biotechnology: Pharmaceutical Preparations
    Health Care

    OS Therapies Incorporated filed SEC Form 8-K: Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation, Unregistered Sales of Equity Securities, Leadership Update, Other Events, Financial Statements and Exhibits

    8-K - OS Therapies Inc (0001795091) (Filer)

    7/2/26 4:30:21 PM ET
    $OSTX
    Biotechnology: Pharmaceutical Preparations
    Health Care

    $OSTX
    Financials

    Live finance-specific insights

    View All

    OS Therapies Announces EMA Initiates Rolling Review of Conditional Marketing Authorization Application for OST-HER2 in the Prevention or Delay of Recurrence in Fully Resected Pulmonary Metastatic Osteosarcoma

    Conference call scheduled for Thursday, April 30, 2026, at 8:30 am ET to review new OST-HER2 immune pharmacodynamic biomarker response (seroconversion) data and review regulatory successes validating the OST-HER2 approach. Participants will include strategic advisors Dr. Craig Eagle and Dr. Bob Langer, and Osteosarcoma key opinion leader Dr. Peter Anderson from Cleveland Clinic.EMA and Australia TGA (ATGA) align on 3-year overall survival as the approvable clinical efficacy endpoint for Conditional Marketing Authorizations (CMAs), with alignment also achieved on confirmatory Phase 3 initiation, initially only in Australia, planned for Q3 2026 to meet regulatory requirement to support early a

    4/30/26 6:00:00 AM ET
    $OSTX
    Biotechnology: Pharmaceutical Preparations
    Health Care

    OS Therapies Schedules OST-HER2 Pharmacodynamic Response Biomarker Conference Call on April 30, 2026 at 8:30am ET

    Regulatory feedback recent from April 2026 EU EMA and Australian TGA meetingsRemaining Q2-2026 regulatory meetings include two U.S. FDA meetings and one UK MHRA meeting, in addition to follow-up meetings with EU EMA and Australian TGANew York, New York--(Newsfile Corp. - April 27, 2026) - OS Therapies, Inc. (NYSE American: OSTX) ("OS Therapies" or "the Company"), the world leader in gene-edited, listeria-based cancer immunotherapies, today announced that it will be hosting a conference call on Thursday April 30, 2026 at 8:30am ET to review the data that supported the recent Patent Cooperation Treaty (PCT) international application for a OST-HER2 pharmacodynamic biomarker1 (the "OST-HER2

    4/27/26 4:01:00 PM ET
    $OSTX
    Biotechnology: Pharmaceutical Preparations
    Health Care

    OS Therapies Files New Patent Application Covering Biomarkers of the Immune Response to Listeria Monocytogenes

    New patent application covers treatment-emergent immune signature related to 'turning cold tumors hot' and the activation of targeted cytotoxic cellular immune responses Company to host conference call later in April 2026 to review new biomarker signatureBiomarker signature meets pharmacodynamic/response criteria established by FDA's Biomarkers, EndpointS and other Tools (BEST) program for use as a surrogate clinical endpoint of 1-year event free survival and 2-year overall survival in OST-HER2's Phase 2b trial in the prevention of delay of recurrent, fully-resected, pulmonary metastatic osteosarcoma to support a BLA submission under FDA's Accelerated Approval ProgramNew York, New York--(New

    4/16/26 7:20:00 AM ET
    $OSTX
    Biotechnology: Pharmaceutical Preparations
    Health Care

    $OSTX
    Large Ownership Changes

    This live feed shows all institutional transactions in real time.

    View All

    SEC Form SC 13G filed by OS Therapies Incorporated

    SC 13G - OS Therapies Inc (0001795091) (Subject)

    8/28/24 4:30:09 PM ET
    $OSTX
    Biotechnology: Pharmaceutical Preparations
    Health Care

    $OSTX
    Leadership Updates

    Live Leadership Updates

    View All

    OS Therapies Appoints Dr. Craig Eagle to Board of Directors

    Company secures $10 million line of credit supported by OS Therapies UK tax creditsNew York, New York and Rockville, Maryland--(Newsfile Corp. - July 2, 2026) - OS Therapies, Inc. (NYSE:OSTX) ("OS Therapies" or "the Company"), the world leader in gene-edited, Listeria-based cancer immunotherapies, today announced that it has appointed Dr. Craig Eagle to the Company's Board of Directors. Dr. Eagle currently serves as the Company's Chief Medical Advisor. The Company also thanks Karim Galzahr for his service to the Board of Directors and will continue as a member of the Company's advisory board."Having enjoyed participating in recent U.S., European and U.K. regulatory meetings as we prepare for

    7/2/26 7:30:00 AM ET
    $OSTX
    Biotechnology: Pharmaceutical Preparations
    Health Care

    OS Therapies Appoints Industry Leader Dr. Craig Eagle as Chief Medical Advisor

    Appointment strengthens medical, regulatory, and commercial leadership as Company prepares to complete early market access regulatory filings in the U.S., U.K, Europe and Australia in anticipation of OST-HER2 approval decisions expected by year-end 2026Upcoming FDA Pre-BLA meeting will focus on the use of recent seroconversion biomarker data as a key surrogate clinical efficacy endpoint to support a BLA for OST-HER2 under the Accelerated Approval ProgramCommercialization and reimbursement preparations well underway for the U.S., U.K., and Europe in parallel with ongoing partnership discussionsNew York, New York and Rockville, Maryland--(Newsfile Corp. - May 14, 2026) - OS Therapies, Inc. (NY

    5/14/26 7:30:00 AM ET
    $OSTX
    Biotechnology: Pharmaceutical Preparations
    Health Care

    OS Therapies Appoints Biotech Industry Luminary Robert "Bob" S. Langer, PhD as Strategic Advisor

    Co-founder of more than 40 biotechnology companies, including 16 IPOs and 19 successful acquisitions Scientific and medical titan focused on driving innovation for human healthWill assist with listeria oncology pipeline prioritization, combinations with other oncology-focused biotechnologies and tADC candidate selection for further developmentNew York, New York--(Newsfile Corp. - April 13, 2026) - OS Therapies, Inc. (NYSE:OSTX) ("OS Therapies" or "the Company"), the world leader in gene-edited, listeria-based cancer immunotherapies, announced today that Dr. Robert "Bob" S. Langer, co-founder of Moderna, was appointed to the Company's strategic advisory board. Dr. Langer will assist managemen

    4/13/26 6:00:00 AM ET
    $OSTX
    Biotechnology: Pharmaceutical Preparations
    Health Care