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.
13F holders, Q3 2025
Institutional positions in OS Therapies Inc as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 25
- +12 vs. Q2 2025
- Shares held
- 1.56M
- +959.5K (+158.9%) vs. Q2 2025
- Total value
- $3.07M
- +$1.93M (+170.2%) vs. Q2 2025
- New holders
- 13
- 5 more added
- Sold out
- 1
- 2 more reduced
Compare with Q2 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting OSTX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 29 | $5.50M |
| Q1 2026 | 29 | $4.09M |
| Q4 2025 | 25 | $2.49M |
| Q3 2025 | 25 | $3.07M |
| Q2 2025 | 13 | $1.13M |
| Q1 2025 | 6 | $599.3K |
| Q4 2024 | 5 | $620.6K |
| Q3 2024 | 7 | $447.8K |
| Q2 2024 | 0 | $0 |
| Q1 2024 | 0 | $0 |
| Q4 2023 | 0 | $0 |
| Q3 2023 | 0 | $0 |
| Q2 2023 | 0 | $0 |
| Q1 2023 | 0 | $0 |
| Q4 2022 | 0 | $0 |
| Q3 2022 | 0 | $0 |
| Q2 2022 | 0 | $0 |
| Q1 2022 | 0 | $0 |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding OS Therapies Inc; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| JPMorgan Chase & Co | 13 | $25 | 0.00% | −309−96.0% | Reduced |
| Armstrong Advisory Group, Inc | 100 | $196 | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 227 | $445 | 0.00% | −52,590−99.6% | Reduced |
| Morgan Stanley | 1,000 | $1.96K | 0.00% | +260+35.1% | Added |
| Tower Research Capital LLC (TRC) | 4,167 | $8.17K | 0.00% | +1,617+63.4% | Added |
| Jones Financial Companies LLLP | 7,867 | $16.1K | 0.00% | +7,867 | New |
| Full Sail Capital, LLC | 10,220 | $20.0K | 0.00% | 00.0% | Unchanged |
| Two Sigma Securities, LLC | 10,237 | $20.1K | 0.00% | +10,237 | New |
| Sanders Morris Harris LLC | 12,000 | $23.5K | 0.00% | +12,000 | New |
| Susquehanna International Group, LLP | 14,961 | $29.3K | 0.00% | +14,961 | New |
| Stifel Financial Corp | 15,000 | $29.4K | 0.00% | 00.0% | Unchanged |
| Mercer Global Advisors Inc | 20,440 | $40.1K | 0.00% | +20,440 | New |
| Ground Swell Capital, LLC | 20,462 | $40.1K | 0.09% | +20,462 | New |
| Bridgeway Capital Management, LLC | 25,000 | $49.0K | 0.00% | 00.0% | Unchanged |
| Ingalls & Snyder LLC | 36,676 | $72.0K | 0.00% | 00.0% | Unchanged |
| BlackRock, Inc. | 48,163 | $94.4K | 0.00% | +17,882+59.1% | Added |
| State Street Corp | 50,300 | $98.6K | 0.00% | +50,300 | New |
| Northern Trust Corp | 56,263 | $110.3K | 0.00% | +56,263 | New |
| Virtu Financial LLC | 75,801 | $149.0K | 0.01% | +54,269+252.0% | Added |
| Two Sigma Investments, LP | 86,247 | $169.0K | 0.00% | +86,247 | New |
| Millennium Management LLC | 93,574 | $183.4K | 0.00% | +93,574 | New |
| Geode Capital Management, LLC | 187,688 | $367.9K | 0.00% | +187,688 | New |
| Vanguard Group Inc | 188,263 | $369.0K | 0.00% | +188,263 | New |
| Marshall Wace, LLP | 198,552 | $389.2K | 0.00% | +198,552 | New |
| CM Management, LLC | 400,000 | $784.0K | 0.65% | +25,000+6.7% | Added |
| XTX Topco Ltd | 0 | $0 | 0.00% | −33,489−100.0% | Sold out |