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, Q1 2025
Institutional positions in Sutro Biopharma, Inc. as of Mar 31, 2025. 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
- 113
- −9 vs. Q4 2024
- Shares held
- 61.5M
- −1.11M (−1.8%) vs. Q4 2024
- Total value
- $40.0M
- −$75.1M (−65.3%) vs. Q4 2024
- New holders
- 18
- 39 more added
- Sold out
- 27
- 32 more reduced
1 institution that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2024: 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 | $358.9M |
| Q4 2025 | 63 | $65.0M |
| Q3 2025 | 88 | $46.4M |
| Q2 2025 | 101 | $39.8M |
| Q1 2025 | 113 | $40.0M |
| Q4 2024 | 123 | $117.6M |
| Q3 2024 | 130 | $216.6M |
| Q2 2024 | 119 | $185.2M |
| Q1 2024 | 117 | $308.2M |
| Q4 2023 | 114 | $240.0M |
| Q3 2023 | 109 | $194.3M |
| Q2 2023 | 120 | $251.6M |
| Q1 2023 | 116 | $247.9M |
| Q4 2022 | 119 | $403.7M |
| Q3 2022 | 113 | $286.6M |
| Q2 2022 | 115 | $240.9M |
| Q1 2022 | 114 | $342.2M |
| Q4 2021 | 117 | $599.0M |
| Q3 2021 | 120 | $752.5M |
| Q2 2021 | 124 | $766.7M |
| Q1 2021 | 138 | $1.01B |
Institutions, Q1 2025
Shares, value and share of portfolio for each institution holding Sutro Biopharma, Inc.; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Suvretta Capital Management, LLC | 7,462,495 | $4.86M | 0.20% | 00.0% | Unchanged |
| BlackRock, Inc. | 6,204,784 | $4.04M | 0.00% | −1,388,407−18.3% | Reduced |
| Kynam Capital Management, LP | 5,441,447 | $3.54M | 0.30% | +1,800,000+49.4% | Added |
| Ra Capital Management, L.P. | 4,434,637 | $2.89M | 0.05% | +4,434,637 | New |
| Vanguard Group Inc | 4,395,244 | $2.86M | 0.00% | +186,744+4.4% | Added |
| Acadian Asset Management LLC | 3,134,586 | $2.04M | 0.01% | +1,382,661+78.9% | Added |
| Merck & Co., Inc. | 2,723,509 | $1.77M | 1.08% | 00.0% | Unchanged |
| Vestal Point Capital, LP | 2,600,000 | $1.69M | 0.12% | +30,000+1.2% | Added |
| Eversept Partners, LP | 2,292,261 | $1.49M | 0.17% | +1,597,853+230.1% | Added |
| Samsara BioCapital, LLC | 2,196,814 | $1.43M | 0.25% | 00.0% | Unchanged |
| Adage Capital Partners GP, L.L.C. | 2,000,000 | $1.30M | 0.00% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 1,889,272 | $1.23M | 0.00% | +35,255+1.9% | Added |
| Goldman Sachs Group Inc | 1,712,115 | $1.11M | 0.00% | −2,307−0.1% | Reduced |
| State Street Corp | 1,682,339 | $1.09M | 0.00% | −19,531−1.1% | Reduced |
| AQR Capital Management LLC | 1,320,917 | $859.4K | 0.00% | +1,206,330+1,052.8% | Added |
| Velan Capital Investment Management LP | 1,030,000 | $670.1K | 0.69% | +1,000,000+3,333.3% | Added |
| Renaissance Technologies LLC | 868,997 | $565.4K | 0.00% | −146,214−14.4% | Reduced |
| Dimensional Fund Advisors LP | 817,479 | $532.6K | 0.00% | −318,978−28.1% | Reduced |
| Affinity Asset Advisors, LLC | 752,722 | $489.7K | 0.08% | +752,722 | New |
| Millennium Management LLC | 703,155 | $457.5K | 0.00% | +297,537+73.4% | Added |
| Northern Trust Corp | 633,923 | $412.4K | 0.00% | −2,997−0.5% | Reduced |
| Prudential Financial Inc | 604,580 | $393.3K | 0.00% | +57,070+10.4% | Added |
| DAFNA Capital Management LLC | 437,079 | $284.4K | 0.08% | 00.0% | Unchanged |
| LPL Financial LLC | 389,932 | $253.7K | 0.00% | +27,700+7.6% | Added |
| Fisher Asset Management, LLC | 352,949 | $229.6K | 0.00% | +81,612+30.1% | Added |
| JPMorgan Chase & Co | 301,407 | $196.1K | 0.00% | +237,362+370.6% | Added |
| Nuveen, LLC | 290,897 | $189.3K | 0.00% | +290,897 | New |
| Two Sigma Advisers, LP | 240,900 | $156.7K | 0.00% | −306,900−56.0% | Reduced |
| Bank of New York Mellon Corp | 209,222 | $136.1K | 0.00% | −8,405−3.9% | Reduced |
| Shay Capital LLC | 205,620 | $133.8K | 0.04% | +2,019+1.0% | Added |
| Tang Capital Management LLC | 200,000 | $130.1K | 0.01% | +200,000 | New |
| Charles Schwab Investment Management Inc | 199,901 | $130.1K | 0.00% | −52,094−20.7% | Reduced |
| Morgan Stanley | 195,860 | $127.4K | 0.00% | −1,324,276−87.1% | Reduced |
| AJU IB Investment Co., Ltd. | 175,000 | $113.9K | 0.14% | 00.0% | Unchanged |
| D. E. Shaw & Co., Inc. | 158,037 | $102.8K | 0.00% | +354+0.2% | Added |
| BNP Paribas Arbitrage, SA | 155,235 | $101.0K | 0.00% | +4,477+3.0% | Added |
| STRS Ohio | 152,800 | $99.4K | 0.00% | 00.0% | Unchanged |
| Citadel Advisors LLC | 141,229 | $91.9K | 0.00% | −2,317,428−94.3% | Reduced |
| Panagora Asset Management Inc | 140,362 | $91.3K | 0.00% | −1,824−1.3% | Reduced |
| Exchange Traded Concepts, LLC | 136,623 | $88.9K | 0.00% | +91,363+201.9% | Added |
| Rhumbline Advisers | 122,816 | $79.9K | 0.00% | −3,882−3.1% | Reduced |
| Barclays PLC | 116,286 | $75.7K | 0.00% | −42,528−26.8% | Reduced |
| Bank of America Corp | 109,101 | $70.9K | 0.00% | +2,843+2.7% | Added |
| Susquehanna International Group, LLP | 102,342 | $66.6K | 0.00% | +28,873+39.3% | Added |
| Alliancebernstein L.P. | 96,370 | $62.7K | 0.00% | 00.0% | Unchanged |
| Two Sigma Investments, LP | 95,881 | $62.4K | 0.00% | −220,411−69.7% | Reduced |
| Omers Administration Corp | 95,150 | $61.9K | 0.00% | 00.0% | Unchanged |
| State of Wyoming | 94,932 | $61.8K | 0.01% | +94,932 | New |
| Invesco Ltd. | 92,139 | $59.9K | 0.00% | +53,390+137.8% | Added |
| SG Americas Securities, LLC | 84,907 | $55.0K | 0.00% | +44,475+110.0% | Added |
| UBS Group AG | 75,571 | $49.2K | 0.00% | −108,090−58.9% | Reduced |
| Ieq Capital, LLC | 75,066 | $48.8K | 0.00% | +75,066 | New |
| Intech Investment Management LLC | 72,540 | $47.2K | 0.00% | +36,372+100.6% | Added |
| Standard Life Aberdeen plc | 69,389 | $45.1K | 0.00% | 00.0% | Unchanged |
| Citigroup Inc | 65,305 | $42.5K | 0.00% | +1,381+2.2% | Added |
| HSBC Holdings PLC | 60,463 | $40.3K | 0.00% | −3,091−4.9% | Reduced |
| FMR LLC | 61,549 | $40.0K | 0.00% | −216,343−77.9% | Reduced |
| Alps Advisors Inc | 61,267 | $39.9K | 0.00% | −5,379−8.1% | Reduced |
| SEI Investments Co | 56,347 | $36.7K | 0.00% | 00.0% | Unchanged |
| Vontobel Holding Ltd. | 50,000 | $32.5K | 0.00% | +25,000+100.0% | Added |
| Wells Fargo & Company | 49,134 | $32.0K | 0.00% | −3,604−6.8% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 48,998 | $31.9K | 0.00% | +2,112+4.5% | Added |
| Corebridge Financial, Inc. | 40,104 | $26.1K | 0.00% | −594−1.5% | Reduced |
| Cerity Partners LLC | 39,065 | $25.4K | 0.00% | +39,065 | New |
| Price T Rowe Associates Inc | 36,893 | $25.0K | 0.00% | +6,694+22.2% | Added |
| Susquehanna Fundamental Investments, LLC | 37,956 | $24.7K | 0.00% | −49,854−56.8% | Reduced |
| Voya Investment Management LLC | 36,487 | $23.7K | 0.00% | +4,339+13.5% | Added |
| CWM, LLC | 32,716 | $21.0K | 0.00% | +32,506+15,479.0% | Added |
| Manufacturers Life Insurance Company, The | 30,993 | $20.2K | 0.00% | +112+0.4% | Added |
| UBS Oconnor LLC | 28,278 | $18.4K | 0.00% | −272,343−90.6% | Reduced |
| HRT Financial LP | 26,778 | $17.0K | 0.00% | +26,778 | New |
| XTX Topco Ltd | 25,166 | $16.4K | 0.00% | +3,357+15.4% | Added |
| Resources Investment Advisors, LLC. | 24,099 | $15.7K | 0.00% | +24,099 | New |
| Advisor Group Holdings, Inc. | 23,003 | $14.9K | 0.00% | +3,468+17.8% | Added |
| Oxford Asset Management LLP | 22,850 | $14.9K | 0.01% | +22,850 | New |
| JustInvest LLC | 22,056 | $14.3K | 0.00% | +11,642+111.8% | Added |
| ProShare Advisors LLC | 21,441 | $13.9K | 0.00% | −5,520−20.5% | Reduced |
| PEAK6 LLC | 21,306 | $13.9K | 0.00% | 00.0% | Unchanged |
| CIBC World Markets Corp | 18,164 | $11.8K | 0.00% | +18,164 | New |
| State Board of Administration of Florida Retirement System | 17,273 | $11.2K | 0.00% | 00.0% | Unchanged |
| Wealth Enhancement Advisory Services, LLC | 17,199 | $11.2K | 0.00% | +17,199 | New |
| Prime Capital Investment Advisors, LLC | 17,111 | $11.1K | 0.00% | +17,111 | New |
| Police & Firemen's Retirement System of New Jersey | 16,570 | $10.8K | 0.00% | 00.0% | Unchanged |
| China Universal Asset Management Co., Ltd. | 16,540 | $10.8K | 0.00% | −944−5.4% | Reduced |
| Zacks Investment Management | 15,143 | $9.85K | 0.00% | +15,143 | New |
| Tower Research Capital LLC (TRC) | 13,707 | $8.92K | 0.00% | +5,996+77.8% | Added |
| New York State Common Retirement Fund | 13,625 | $8.86K | 0.00% | 00.0% | Unchanged |
| Axxcess Wealth Management, LLC | 12,907 | $8.40K | 0.00% | +12,907 | New |
| Bridgeway Capital Management, LLC | 12,900 | $8.39K | 0.00% | −176,800−93.2% | Reduced |
| Diversified Trust Co | 12,610 | $8.20K | 0.00% | 00.0% | Unchanged |
| Sherbrooke Park Advisers LLC | 10,508 | $6.84K | 0.00% | −23,132−68.8% | Reduced |
| Russell Investments Group, Ltd. | 9,258 | $6.02K | 0.00% | −90,187−90.7% | Reduced |
| Legal & General Group Plc | 7,073 | $4.60K | 0.00% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 6,622 | $4.31K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 6,197 | $4.00K | 0.00% | −5,923−48.9% | Reduced |
| California State Teachers Retirement System | 5,932 | $3.86K | 0.00% | 00.0% | Unchanged |
| Gen-Wealth Partners Inc | 4,042 | $2.63K | 0.00% | +3,000+287.9% | Added |
| Amalgamated Bank | 2,825 | $2.00K | 0.00% | +861+43.8% | Added |
| Mirae Asset Global Investments Co., Ltd. | 2,676 | $1.97K | 0.00% | −72−2.6% | Reduced |
| GF Fund Management Co. Ltd. | 1,982 | $1.29K | 0.00% | +251+14.5% | Added |