Sutro Biopharma
Ownership
Ownership Structure
Who owns Sutro Biopharma (STRO)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 64.9% of the shares are freely tradable; institutional investors hold 86.8%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Perceptive Advisors LLC | 7.87 | 1,304,846 | +82.4 | 06/30/2026 |
| Bvf Inc | 7.55 | 1,251,788 | +0.0 | 03/31/2026 |
| Affinity Asset Advisors, LLC | 7.07 | 1,172,487 | +9.6 | 06/30/2026 |
| Samsara BioCapital, LLC | 6.41 | 1,062,872 | +0.0 | 06/30/2026 |
| Kynam Capital Management, LP | 5.26 | 872,558 | +0.0 | 06/30/2026 |
| Orbimed Advisors LLC | 4.83 | 801,144 | +0.0 | 03/31/2026 |
| Vanguard Capital Management, LLC | 4.34 | 720,442 | +0.0 | 03/31/2026 |
| RA Capital Management, LLC | 4.31 | 715,307 | +0.0 | 03/31/2026 |
| Point72 Asset Management, L.P. | 4.17 | 692,111 | +286.5 | 03/31/2026 |
| Eventide Asset Management, LLC | 3.53 | 585,262 | -18.2 | 06/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: September 18, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.