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, Q4 2025
Institutional positions in OS Therapies Inc as of Dec 31, 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
- +1 vs. Q3 2025
- Shares held
- 1.78M
- +222.4K (+14.3%) vs. Q3 2025
- Total value
- $2.49M
- −$559.8K (−18.4%) vs. Q3 2025
- New holders
- 7
- 8 more added
- Sold out
- 6
- 4 more reduced
1 institution that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2025
Shares, value and share of portfolio for each institution holding OS Therapies Inc; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| FNY Investment Advisers, LLC | 100 | $0 | 0.00% | +100 | New |
| Bank of America Corp | 23 | $32 | 0.00% | +23 | New |
| Northwestern Mutual Wealth Management Co | 25 | $35 | 0.00% | +25 | New |
| Tower Research Capital LLC (TRC) | 88 | $123 | 0.00% | −4,079−97.9% | Reduced |
| Armstrong Advisory Group, Inc | 100 | $140 | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 480 | $1.00K | 0.00% | +480 | New |
| Morgan Stanley | 1,000 | $1.40K | 0.00% | 00.0% | Unchanged |
| LPL Financial LLC | 10,113 | $14.2K | 0.00% | +10,113 | New |
| Mercer Global Advisors Inc | 10,220 | $14.3K | 0.00% | −10,220−50.0% | Reduced |
| Jones Financial Companies LLLP | 10,867 | $15.2K | 0.00% | +3,000+38.1% | Added |
| Stratos Wealth Advisors, LLC | 13,817 | $19.3K | 0.00% | +13,817 | New |
| Stifel Financial Corp | 15,000 | $21.0K | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 18,156 | $25.4K | 0.00% | +17,929+7,898.2% | Added |
| Bridgeway Capital Management, LLC | 25,000 | $35.0K | 0.00% | 00.0% | Unchanged |
| Jane Street Group, LLC | 27,740 | $38.8K | 0.00% | +27,740 | New |
| Millennium Management LLC | 30,785 | $43.1K | 0.00% | −62,789−67.1% | Reduced |
| Ingalls & Snyder LLC | 36,676 | $51.0K | 0.00% | 00.0% | Unchanged |
| State Street Corp | 58,500 | $81.9K | 0.00% | +8,200+16.3% | Added |
| BlackRock, Inc. | 61,425 | $86.0K | 0.00% | +13,262+27.5% | Added |
| Northern Trust Corp | 71,309 | $99.8K | 0.00% | +15,046+26.7% | Added |
| Two Sigma Investments, LP | 87,537 | $122.6K | 0.00% | +1,290+1.5% | Added |
| Marshall Wace, LLP | 109,949 | $153.9K | 0.00% | −88,603−44.6% | Reduced |
| Geode Capital Management, LLC | 246,038 | $344.5K | 0.00% | +58,350+31.1% | Added |
| CM Management, LLC | 400,000 | $560.0K | 0.47% | 00.0% | Unchanged |
| Vanguard Group Inc | 540,421 | $756.6K | 0.00% | +352,158+187.1% | Added |
| Virtu Financial LLC | 0 | $0 | 0.00% | −75,801−100.0% | Sold out |
| Ground Swell Capital, LLC | 0 | $0 | 0.00% | −20,462−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −14,961−100.0% | Sold out |
| Sanders Morris Harris LLC | 0 | $0 | 0.00% | −12,000−100.0% | Sold out |
| Two Sigma Securities, LLC | 0 | $0 | 0.00% | −10,237−100.0% | Sold out |
| JPMorgan Chase & Co | 0 | $0 | 0.00% | −13−100.0% | Sold out |
| Full Sail Capital, LLC | – | – | – | – | Not filed |