Institutional Holders (2026 Q2)
195 + investorsExplore institutional interest and hedge fund ownership dynamics. Analyze portfolio weights, new positions, and conviction trends in STOK. Verified SEC 13F-HR filings.
| # | Investor | % of Portfolio | Shares | Mkt Value |
|---|---|---|---|---|
| 1 | Lynx1 Capital Management LP | 26.03% | 4,038,404 | $132.1M |
| 2 | Redmile Group, LLC | 8.67% | 3,945,920 | $129.1M |
| 3 | Birchview Capital, LP | 2.73% | 178,110 | $5.8M |
| 4 | Bvf Inc/Il | 2.13% | 2,547,557 | $83.4M |
| 5 | Opaleye Management Inc. | 2.07% | 700,000 | $22.9M |
| 6 | Troluce Capital Advisors LLC | 1.67% | 496,416 | $16.2M |
| 7 | Rtw Investments, LP | 1.57% | 5,623,525 | $184.0M |
| 8 | MPM BioImpact LLC | 1.44% | 723,314 | $23.7M |
| 9 | Siren, L.L.C. | 1.32% | 1,995,347 | $65.3M |
| 10 | Parkman Healthcare Partners LLC | 1.19% | 355,443 | $11.6M |
| 11 | EcoR1 Capital, LLC | 1.17% | 735,000 | $24.0M |
| 12 | DAFNA Capital Management LLC | 0.82% | 130,875 | $4.3M |
| 13 | Deerfield Management Company, L.P. | 0.62% | 1,823,500 | $59.7M |
| 14 | Baker BROS. Advisors LP | 0.55% | 3,336,697 | $109.2M |
| 15 | Granahan Investment Management, LLC | 0.54% | 461,608 | $15.1M |
| 16 | HighVista Strategies LLC | 0.46% | 61,316 | $2.0M |
| 17 | Tang Capital Management LLC | 0.45% | 300,000 | $9.8M |
| 18 | Platinum Investment Management Ltd | 0.33% | 40,815 | $1.3M |
| 19 | Hussman Strategic Advisors, INC. | 0.32% | 42,000 | $1.4M |
| 20 | EntryPoint Capital, LLC | 0.24% | 25,926 | $350K |
| 21 | Generali Investments, Management Co LLC | 0.24% | 33,149 | $1.1M |
| 22 | PSP Research LLC | 0.21% | 12,000 | $393K |
| 23 | Rhenman & Partners Asset Management AB | 0.20% | 64,500 | $2.1M |
| 24 | Yorktown Management & Research Co Inc | 0.18% | 9,150 | $299K |
| 25 | Toronto Dominion Bank | 0.12% | 3,173,258 | $103.8M |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|