Sutro Biopharma, Inc. (STRO) ownership: Top institutional holder: BVF INC/IL ($31.18M). Insider activity: Net Seller (5 buys, 15 sells). SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| BVF INC/IL | 1251788.00 | $31.18M | 2026-03-31 |
| Affinity Asset Advisors, LLC | 1069519.00 | $26.64M | 2026-03-31 |
| SAMSARA BIOCAPITAL, LLC | 1062872.00 | $26.48M | 2026-03-31 |
| Kynam Capital Management, LP | 872558.00 | $21.74M | 2026-03-31 |
| ORBIMED ADVISORS LLC | 801144.00 | $19.96M | 2026-03-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 720442.00 | $17.95M | 2026-03-31 |
| PERCEPTIVE ADVISORS LLC | 715307.00 | $17.82M | 2026-03-31 |
| EVENTIDE ASSET MANAGEMENT, LLC | 715307.00 | $17.82M | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Buy | null | 2026-03-04 | |
| Sell | null | 2026-03-04 | |
| Sell | null | 2026-03-04 | |
| Sell | null | 2026-03-04 | |
| Buy | null | 2026-03-04 | |
| Sell | null | 2026-03-04 | |
| Sell | null | 2026-03-02 | |
| Sell | null | 2026-03-02 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.