Sutro Biopharma Inc. Com SHSSTRO
13F holders, Q1 2026 (March 31)7holders
1new positions
1sold out
$24.91avg. 13F price*
At the end of Q1 2026, 7 institutions reported holding Sutro Biopharma Inc. Com SHS (STRO) in their 13F filings, unchanged from Q4 2025. 1 opened new positions and 1 sold out. The largest holders were Merck & Co., Inc. ($6.8M), AJU IB Investment Co., Ltd. ($436K) and Fortitude Family Office, LLC ($1K).
- Company
- Sutro Biopharma Inc. Com SHS
- CUSIP
- 869367102
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 1 | $374 |
| Exits | 1 | $46 |
All 13F filers, Q4 2025 → Q1 2026: 15 shares bought and 16 shares sold, net −1 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 7 holders
| Merck & Co., Inc. | 1.94% | No change | 272,351 | $6.8M |
| AJU IB Investment Co., Ltd. | 1.43% | No change | 17,500 | $436K |
| Fortitude Family Office, LLC | 0.00% | No change | 56 | $1K |
| Bogart Wealth, LLC | 0.00% | No change | 50 | $1K |
| Parallel Advisors, LLC | 0.00% | No change | 47 | $1K |
| EverSource Wealth Advisors, LLC | 0.00% | Reduce -38.7% | 19 | $473 |
| Advisory Services Network, LLC | 0.00% | New | 15 | $374 |
"% of holder's portfolio" is STRO's weight in each manager's 13F, not the share of Sutro Biopharma Inc. Com SHS the manager owns.