OS Therapies Files Prospectus Supplement for Resale of 5,874,094 Shares
OS Therapies filed a prospectus supplement covering the resale of up to 5,874,094 common shares by selling stockholders under its effective Form S-3 registration statement. This 8-K provides the legal opinion from its counsel on the legality of those shares.
Key points
- Prospectus supplement filed September 10, 2026 under Form S-3 (File No. 333-289443), filed August 8, 2025 and declared effective August 25, 2025
- Covers resale of up to 5,874,094 common shares by selling stockholders
- Legal opinion from Olshan Frome Wolosky LLP attached as Exhibit 5.1
The filing
Written by AI on Nov 9, 2026, 11:43 AM ET, from this filing only. Written later: this filing was briefed after the fact, when past filings were added to the site, so the brief may be read with hindsight; the filing itself is the record of what was known on September 10, 2026.
Briefs are written by AI from the filing text and can contain mistakes — open the filing before acting on anything. Impact (1-5) and tone are the AI's reading of the filing for shareholders, not a price forecast. Not investment advice.