Sutro Biopharma, Inc.
STRO- Exchange
- Nasdaq
- Industry
- Biological Products, (No Diagnostic Substances)
- SEC CIK
- 0001382101
No open-market purchases or sales by Sutro Biopharma, Inc. insiders were filed in the last 90 days; 100 institutions reported holding it in 13F filings for Q2 2026, worth $545.7M in total; no superinvestor holds it.
13F holders, Q4 2022
Institutional positions in Sutro Biopharma, Inc. as of Dec 31, 2022. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 119
- +9 vs. Q3 2022
- Shares held
- 50.0M
- −225.9K (−0.5%) vs. Q3 2022
- Total value
- $403.7M
- +$125.1M (+44.9%) vs. Q3 2022
- New holders
- 18
- 57 more added
- Sold out
- 9
- 29 more reduced
3 institutions that held it in Q3 2022 haven't filed for Q4 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2022: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting STRO on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 100 | $545.7M |
| Q1 2026 | 78 | $358.3M |
| Q4 2025 | 63 | $64.8M |
| Q3 2025 | 88 | $46.4M |
| Q2 2025 | 101 | $39.6M |
| Q1 2025 | 113 | $40.0M |
| Q4 2024 | 123 | $117.6M |
| Q3 2024 | 130 | $216.4M |
| Q2 2024 | 119 | $185.1M |
| Q1 2024 | 117 | $301.7M |
| Q4 2023 | 114 | $238.7M |
| Q3 2023 | 109 | $194.3M |
| Q2 2023 | 120 | $251.6M |
| Q1 2023 | 116 | $247.5M |
| Q4 2022 | 119 | $403.7M |
| Q3 2022 | 113 | $279.6M |
| Q2 2022 | 115 | $240.9M |
| Q1 2022 | 114 | $342.2M |
| Q4 2021 | 117 | $593.2M |
| Q3 2021 | 120 | $752.5M |
| Q2 2021 | 124 | $766.7M |
| Q1 2021 | 138 | $1.01B |
Institutions, Q4 2022
Shares, value and share of portfolio for each institution holding Sutro Biopharma, Inc.; share changes are against Q3 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Royal Bank of Canada | 7,451 | $60.0K | 0.00% | +6,855+1,150.2% | Added |
| Amalgamated Bank | 6,521 | $53.0K | 0.00% | +508+8.4% | Added |
| Federated Hermes, Inc. | 6,433 | $52.0K | 0.00% | +3,315+106.3% | Added |
| Wells Fargo & Company | 5,690 | $46.0K | 0.00% | +4,372+331.7% | Added |
| Legal & General Group Plc | 5,146 | $41.6K | 0.00% | +551+12.0% | Added |
| Ameritas Investment Partners, Inc. | 3,400 | $25.6K | 0.00% | 00.0% | Unchanged |
| Metropolitan Life Insurance Co | 2,981 | $24.1K | 0.00% | 00.0% | Unchanged |
| HighMark Wealth Management LLC | 2,675 | $21.6K | 0.02% | −1,300−32.7% | Reduced |
| Quadrant Capital Group LLC | 1,976 | $16.0K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 1,343 | $11.0K | 0.00% | −1,907−58.7% | Reduced |
| China Universal Asset Management Co., Ltd. | 583 | $4.71K | 0.00% | +95+19.5% | Added |
| Parallel Advisors, LLC | 465 | $3.76K | 0.00% | 00.0% | Unchanged |
| Washington Trust Advisors, Inc. | 179 | $1.45K | 0.00% | 00.0% | Unchanged |
| Daiwa Securities Group Inc. | 158 | $1.00K | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 80 | $1.00K | 0.00% | +80 | New |
| Allworth Financial LP | 41 | $331 | 0.00% | +41 | New |
| Credit Suisse AG | 2 | $16 | 0.00% | −275−99.3% | Reduced |
| Rockefeller Capital Management L.P. | 93 | $0 | 0.00% | 00.0% | Unchanged |
| CWM, LLC | 33 | $0 | 0.00% | +33 | New |
| Eventide Asset Management, LLC | 0 | $0 | 0.00% | −2,708,975−100.0% | Sold out |
| Healthcare of Ontario Pension Plan Trust Fund | 0 | $0 | 0.00% | −150,000−100.0% | Sold out |
| DAFNA Capital Management LLC | 0 | $0 | 0.00% | −81,200−100.0% | Sold out |
| PDT Partners, LLC | 0 | $0 | 0.00% | −74,663−100.0% | Sold out |
| Woodline Partners LP | 0 | $0 | 0.00% | −73,954−100.0% | Sold out |
| Occudo Quantitative Strategies LP | 0 | $0 | 0.00% | −44,550−100.0% | Sold out |
| Victory Capital Management Inc | 0 | $0 | 0.00% | −35,119−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −15,575−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −487−100.0% | Sold out |
| AJU IB Investment Co., Ltd. | – | – | – | – | Not filed |
| American Portfolios Advisors | – | – | – | – | Not filed |
| FourThought Financial, LLC | – | – | – | – | Not filed |