Os TherapiesOSTX
13F holders, Q2 2026 (June 30)29holders
6new positions
6sold out
$1.90avg. 13F price*
At the end of Q2 2026, 29 institutions reported holding Os Therapies Inc. (OSTX) in their 13F filings, unchanged from Q1 2026. 6 opened new positions and 6 sold out. The largest holders were Vanguard Capital Management LLC ($1.5M), CM Management, LLC ($760K) and Geode Capital Management, LLC ($573K).
- Company
- Os Therapies Inc.
- CUSIP
- 68764Y207
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2026 → Q2 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 6 | $296K |
| Exits | 6 | $124K |
All 13F filers, Q1 2026 → Q2 2026: 874,894 shares bought and 876,523 shares sold, net −1,629 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 29 holders
| Vanguard Capital Management LLC | 0.00% | Add +65.7% | 777,651 | $1.5M |
| CM Management, LLC | 0.48% | No change | 400,000 | $760K |
| Geode Capital Management, LLC | 0.00% | Add +7.8% | 301,794 | $573K |
| Howard Financial Services, LTD. | 0.05% | Add +1.1% | 248,001 | $471K |
| BlackRock, Inc. | 0.00% | Add +274.4% | 242,479 | $461K |
| Vanguard Fiduciary Trust Co. | 0.00% | Add +49.3% | 174,132 | $331K |
| State Street Corp. | 0.00% | Add +31.7% | 120,100 | $228K |
| Marshall Wace, LLP | 0.00% | New | 100,640 | $191K |
| HighTower Advisors, LLC | 0.00% | Add +462.8% | 85,550 | $163K |
| Northern Trust Corp. | 0.00% | Add +7.2% | 70,817 | $135K |
| Beacon Pointe Advisors, LLC | 0.00% | No change | 62,507 | $119K |
| Bridgeway Capital Management, LLC | 0.00% | Add +80.0% | 45,000 | $86K |
| Ingalls & Snyder LLC | 0.00% | No change | 36,676 | $70K |
| Two Sigma Investments, LP | 0.00% | Add +15.3% | 30,414 | $58K |
| Stifel Financial Corp. | 0.00% | Add +86.0% | 27,900 | $53K |
| Jane Street Group, LLC | 0.00% | Reduce -33.0% | 26,999 | $51K |
| Axq Capital, LP | 0.01% | New | 24,623 | $47K |
| Vanguard Global Advisers, LLC | 0.00% | No change | 20,958 | $40K |
| Stratos Wealth Advisors, LLC | 0.00% | Add +39.8% | 19,314 | $37K |
| Quadrature Capital Ltd | 0.00% | New | 15,662 | $30K |
| Jones Financial Companies LLLP | 0.00% | Add +12.2% | 14,501 | $27K |
| Susquehanna International Group, LLP | 0.00% | Reduce -97.0% | 13,532 | $26K |
| Morgan Stanley | 0.00% | Add +37.0% | 13,000 | $25K |
| UBS Group AG | 0.00% | Reduce -97.5% | 8,813 | $17K |
| Rockefeller Capital Management L.P. | 0.00% | New | 7,500 | $14K |
| Steward Partners Investment Advisory, LLC | 0.00% | New | 5,681 | $11K |
| Barclays PLC | 0.00% | New | 1,534 | $3K |
| Armstrong Advisory Group, Inc. | 0.00% | No change | 100 | $190 |
| Caitong International Asset Management Co., Ltd | 0.00% | Add +270.6% | 63 | $120 |
"% of holder's portfolio" is OSTX's weight in each manager's 13F, not the share of Os Therapies Inc. the manager owns.