• OS Therapies filed a prospectus supplement for the resale of up to 5,874,094 common shares by selling stockholders.
• The filing forms part of an existing shelf registration statement on Form S-3.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. OS Therapies Inc. published the original content used to generate this news brief via EDGAR, the Electronic Data Gathering, Analysis, and Retrieval system operated by the U.S. Securities and Exchange Commission (Ref. ID: 0001213900-26-098880), on September 10, 2026, and is solely responsible for the information contained therein.