Institutional Holders (2026 Q2)
28 + investorsExplore institutional interest and hedge fund ownership dynamics. Analyze portfolio weights, new positions, and conviction trends in OSTX. Verified SEC 13F-HR filings.
| # | Investor | % of Portfolio | Shares | Mkt Value |
|---|---|---|---|---|
| 1 | CM Management, LLC | 0.48% | 400,000 | $760K |
| 2 | Howard Financial Services, LTD. | 0.05% | 248,001 | $471K |
| 3 | Axq Capital, LP | 0.01% | 24,623 | $47K |
| 4 | Stratos Wealth Advisors, LLC | 0.00% | 19,314 | $37K |
| 5 | Bridgeway Capital Management, LLC | 0.00% | 45,000 | $86K |
| 6 | Quadrature Capital Ltd | 0.00% | 15,662 | $30K |
| 7 | HighTower Advisors, LLC | 0.00% | 85,550 | $163K |
| 8 | Marshall Wace, LLP | 0.00% | 100,640 | $191K |
| 9 | Vanguard Fiduciary Trust Co | 0.00% | 174,132 | $331K |
| 10 | Steward Partners Investment Advisory, LLC | 0.00% | 5,681 | $11K |
| 11 | Stifel Financial Corp | 0.00% | 27,900 | $53K |
| 12 | Two Sigma Investments, LP | 0.00% | 30,414 | $58K |
| 13 | Vanguard Capital Management LLC | 0.00% | 777,651 | $1.5M |
| 14 | Rockefeller Capital Management L.P. | 0.00% | 7,500 | $14K |
| 15 | Caitong International Asset Management Co., Ltd | 0.00% | 63 | — |
| 16 | Armstrong Advisory Group, Inc | 0.00% | 100 | — |
| 17 | Jones Financial Companies Lllp | 0.00% | 14,501 | $27K |
| 18 | BlackRock, Inc. | 0.00% | 242,479 | $461K |
| 19 | Jane Street Group, LLC | 0.00% | 26,999 | $51K |
| 20 | UBS Group AG | 0.00% | 8,813 | $17K |
| 21 | Susquehanna International Group, LLP | 0.00% | 13,532 | $26K |
| 22 | Morgan Stanley | 0.00% | 13,000 | $25K |
| 23 | Barclays plc | 0.00% | 1,534 | $3K |
| 24 | Mercer Global Advisors Inc /Adv | 0.00% | 132 | — |
| Investor | Ownership History |
% of Portfolio | Prev % | Rank | Conviction | Avg Buy Price | 13F Score™ 3Y / 7Y | Sell Timing | Shares | Mkt Value | Change | Change % | Source | Quarter | Filed |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|