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, Q2 2025
Institutional positions in OS Therapies Inc as of Jun 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
- 13
- +7 vs. Q1 2025
- Shares held
- 603.7K
- +214.4K (+55.1%) vs. Q1 2025
- Total value
- $1.13M
- +$535.3K (+89.3%) vs. Q1 2025
- New holders
- 7
- 2 more added
- Sold out
- 0
- 1 more reduced
Compare with Q1 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, Q2 2025
Shares, value and share of portfolio for each institution holding OS Therapies Inc; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| CM Management, LLC | 375,000 | $705.0K | 0.64% | +75,000+25.0% | Added |
| UBS Group AG | 52,817 | $99.3K | 0.00% | +52,817 | New |
| Ingalls & Snyder LLC | 36,676 | $69.0K | 0.00% | 00.0% | Unchanged |
| XTX Topco Ltd | 33,489 | $63.0K | 0.00% | +33,489 | New |
| BlackRock, Inc. | 30,281 | $56.9K | 0.00% | −7,226−19.3% | Reduced |
| Bridgeway Capital Management, LLC | 25,000 | $47.0K | 0.00% | +25,000 | New |
| Virtu Financial LLC | 21,532 | $40.0K | 0.00% | +21,532 | New |
| Stifel Financial Corp | 15,000 | $28.2K | 0.00% | 00.0% | Unchanged |
| Full Sail Capital, LLC | 10,220 | $19.2K | 0.00% | +10,220 | New |
| Tower Research Capital LLC (TRC) | 2,550 | $4.79K | 0.00% | +2,550 | New |
| Morgan Stanley | 740 | $1.39K | 0.00% | +737+24,566.7% | Added |
| JPMorgan Chase & Co | 322 | $605 | 0.00% | +322 | New |
| Armstrong Advisory Group, Inc | 100 | $188 | 0.00% | 00.0% | Unchanged |