OS Therapies Inc
OSTX- Exchange
- NYSE
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001795091
No open-market purchases or sales by OS Therapies Inc insiders were filed in the last 90 days; 29 institutions reported holding it in 13F filings for Q2 2026, worth $5.50M in total; no superinvestor holds it.
Holders of 5% or more of OSTX
Holders whose latest Schedule 13D or 13G filing reports 5% or more of OS Therapies Inc, largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Ayala Pharmaceuticals, Inc. | 13G | 9.99%2.16M shares | New | Apr 16, 20251 filing | Apr 16, 2025 | SEC |
| Satterfield Thomas A Jr | 13G/A | 9.40%3.12M shares | +3.50 ppfrom 5.90% | Feb 12, 20252 filings | Aug 13, 2025 | SEC |
| Auerbach Shalom | 13D/A | 8.50%2.68M shares | −1.40 ppfrom 9.90% | Jan 17, 20255 filings | Aug 18, 2025 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
8 Schedule 13D and 13G filings on OS Therapies Inc, newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Aug 18, 20259:55 PM ET | Auerbach Shalomand 1 other | 13D/A | 8.50%2.68M shares | −1.40 ppfrom 9.90% | Jul 29, 2025 | SEC |
| Aug 13, 20254:05 PM ET | Satterfield Thomas A Jr | 13G/A | 9.40%3.12M shares | +3.50 ppfrom 5.90% | Jun 30, 2025 | SEC |
| May 9, 20259:30 PM ET | Auerbach Shalomand 1 other | 13D/A | 9.90%2.69M shares | −3.00 ppfrom 12.90% | May 7, 2025 | SEC |
| Apr 16, 20252:51 PM ET | Ayala Pharmaceuticals, Inc. | 13G | 9.99%2.16M shares | New | Apr 9, 2025 | SEC |
| Mar 12, 20254:30 PM ET | Auerbach Shalomand 1 other | 13D/A | 12.90%2.83M shares | 0.00 ppfrom 12.90% | Jul 31, 2024 | SEC |
| Feb 28, 20254:05 PM ET | Auerbach Shalomand 1 other | 13D/A | 12.90%2.83M shares | +1.00 ppfrom 11.90% | Feb 27, 2025 | SEC |
| Feb 12, 20258:02 AM ET | Satterfield Thomas A Jr | 13G/A | 5.90%1.27M shares | – | Dec 31, 2024 | SEC |
| Jan 17, 20257:47 PM ET | Auerbach Shalomand 1 other | 13D | 11.90%2.55M shares | New | Jul 31, 2024 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell OS Therapies Inc shares.
No Form 144 notices for OS Therapies Inc are on file.