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 | $358.3M |
| 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, 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 |
|---|---|---|---|---|---|
| SBI Securities Co., Ltd. | 3 | $2 | 0.00% | +1+50.0% | Added |
| Comerica Bank | 49 | $32 | 0.00% | 00.0% | Unchanged |
| HighMark Wealth Management LLC | 225 | $146 | 0.00% | −2,025−90.0% | Reduced |
| Rothschild Investment LLC | 300 | $195 | 0.00% | +300 | New |
| Parallel Advisors, LLC | 465 | $303 | 0.00% | 00.0% | Unchanged |
| AdvisorNet Financial, Inc | 500 | $325 | 0.00% | 00.0% | Unchanged |
| Bogart Wealth, LLC | 500 | $325 | 0.00% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 666 | $434 | 0.00% | +615+1,205.9% | Added |
| EverSource Wealth Advisors, LLC | 857 | $558 | 0.00% | +796+1,304.9% | Added |
| Concord Wealth Partners | 1,000 | $651 | 0.00% | 00.0% | Unchanged |
| Accredited Wealth Management, LLC | 1,000 | $651 | 0.00% | +1,000 | New |
| UMA Financial Services, Inc. | 1,304 | $849 | 0.00% | +1,304 | New |
| Sterling Capital Management LLC | 1,471 | $957 | 0.00% | −1,309−47.1% | Reduced |
| GF Fund Management Co. Ltd. | 1,982 | $1.29K | 0.00% | +251+14.5% | Added |
| Mirae Asset Global Investments Co., Ltd. | 2,676 | $1.97K | 0.00% | −72−2.6% | Reduced |
| Amalgamated Bank | 2,825 | $2.00K | 0.00% | +861+43.8% | Added |
| Gen-Wealth Partners Inc | 4,042 | $2.63K | 0.00% | +3,000+287.9% | Added |
| California State Teachers Retirement System | 5,932 | $3.86K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 6,197 | $4.00K | 0.00% | −5,923−48.9% | Reduced |
| Ameritas Investment Partners, Inc. | 6,622 | $4.31K | 0.00% | 00.0% | Unchanged |
| Legal & General Group Plc | 7,073 | $4.60K | 0.00% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 9,258 | $6.02K | 0.00% | −90,187−90.7% | Reduced |
| Sherbrooke Park Advisers LLC | 10,508 | $6.84K | 0.00% | −23,132−68.8% | Reduced |
| Diversified Trust Co | 12,610 | $8.20K | 0.00% | 00.0% | Unchanged |
| Bridgeway Capital Management, LLC | 12,900 | $8.39K | 0.00% | −176,800−93.2% | Reduced |
| Axxcess Wealth Management, LLC | 12,907 | $8.40K | 0.00% | +12,907 | New |
| New York State Common Retirement Fund | 13,625 | $8.86K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 13,707 | $8.92K | 0.00% | +5,996+77.8% | Added |
| Zacks Investment Management | 15,143 | $9.85K | 0.00% | +15,143 | New |
| China Universal Asset Management Co., Ltd. | 16,540 | $10.8K | 0.00% | −944−5.4% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 16,570 | $10.8K | 0.00% | 00.0% | Unchanged |
| Prime Capital Investment Advisors, LLC | 17,111 | $11.1K | 0.00% | +17,111 | New |
| Wealth Enhancement Advisory Services, LLC | 17,199 | $11.2K | 0.00% | +17,199 | New |
| State Board of Administration of Florida Retirement System | 17,273 | $11.2K | 0.00% | 00.0% | Unchanged |
| CIBC World Markets Corp | 18,164 | $11.8K | 0.00% | +18,164 | New |
| PEAK6 LLC | 21,306 | $13.9K | 0.00% | 00.0% | Unchanged |
| ProShare Advisors LLC | 21,441 | $13.9K | 0.00% | −5,520−20.5% | Reduced |
| JustInvest LLC | 22,056 | $14.3K | 0.00% | +11,642+111.8% | Added |
| Oxford Asset Management LLP | 22,850 | $14.9K | 0.01% | +22,850 | New |
| Advisor Group Holdings, Inc. | 23,003 | $14.9K | 0.00% | +3,468+17.8% | Added |
| Resources Investment Advisors, LLC. | 24,099 | $15.7K | 0.00% | +24,099 | New |
| XTX Topco Ltd | 25,166 | $16.4K | 0.00% | +3,357+15.4% | Added |
| HRT Financial LP | 26,778 | $17.0K | 0.00% | +26,778 | New |
| UBS Oconnor LLC | 28,278 | $18.4K | 0.00% | −272,343−90.6% | Reduced |
| Manufacturers Life Insurance Company, The | 30,993 | $20.2K | 0.00% | +112+0.4% | Added |
| CWM, LLC | 32,716 | $21.0K | 0.00% | +32,506+15,479.0% | Added |
| Voya Investment Management LLC | 36,487 | $23.7K | 0.00% | +4,339+13.5% | Added |
| Susquehanna Fundamental Investments, LLC | 37,956 | $24.7K | 0.00% | −49,854−56.8% | Reduced |
| Price T Rowe Associates Inc | 36,893 | $25.0K | 0.00% | +6,694+22.2% | Added |
| Cerity Partners LLC | 39,065 | $25.4K | 0.00% | +39,065 | New |
| Corebridge Financial, Inc. | 40,104 | $26.1K | 0.00% | −594−1.5% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 48,998 | $31.9K | 0.00% | +2,112+4.5% | Added |
| Wells Fargo & Company | 49,134 | $32.0K | 0.00% | −3,604−6.8% | Reduced |
| Vontobel Holding Ltd. | 50,000 | $32.5K | 0.00% | +25,000+100.0% | Added |
| SEI Investments Co | 56,347 | $36.7K | 0.00% | 00.0% | Unchanged |
| Alps Advisors Inc | 61,267 | $39.9K | 0.00% | −5,379−8.1% | Reduced |
| FMR LLC | 61,549 | $40.0K | 0.00% | −216,343−77.9% | Reduced |
| HSBC Holdings PLC | 60,463 | $40.3K | 0.00% | −3,091−4.9% | Reduced |
| Citigroup Inc | 65,305 | $42.5K | 0.00% | +1,381+2.2% | Added |
| Standard Life Aberdeen plc | 69,389 | $45.1K | 0.00% | 00.0% | Unchanged |
| Intech Investment Management LLC | 72,540 | $47.2K | 0.00% | +36,372+100.6% | Added |
| Ieq Capital, LLC | 75,066 | $48.8K | 0.00% | +75,066 | New |
| UBS Group AG | 75,571 | $49.2K | 0.00% | −108,090−58.9% | Reduced |
| SG Americas Securities, LLC | 84,907 | $55.0K | 0.00% | +44,475+110.0% | Added |
| Invesco Ltd. | 92,139 | $59.9K | 0.00% | +53,390+137.8% | Added |
| State of Wyoming | 94,932 | $61.8K | 0.01% | +94,932 | New |
| Omers Administration Corp | 95,150 | $61.9K | 0.00% | 00.0% | Unchanged |
| Two Sigma Investments, LP | 95,881 | $62.4K | 0.00% | −220,411−69.7% | Reduced |
| Alliancebernstein L.P. | 96,370 | $62.7K | 0.00% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 102,342 | $66.6K | 0.00% | +28,873+39.3% | Added |
| Bank of America Corp | 109,101 | $70.9K | 0.00% | +2,843+2.7% | Added |
| Barclays PLC | 116,286 | $75.7K | 0.00% | −42,528−26.8% | Reduced |
| Rhumbline Advisers | 122,816 | $79.9K | 0.00% | −3,882−3.1% | Reduced |
| Exchange Traded Concepts, LLC | 136,623 | $88.9K | 0.00% | +91,363+201.9% | Added |
| Panagora Asset Management Inc | 140,362 | $91.3K | 0.00% | −1,824−1.3% | Reduced |
| Citadel Advisors LLC | 141,229 | $91.9K | 0.00% | −2,317,428−94.3% | Reduced |
| STRS Ohio | 152,800 | $99.4K | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 155,235 | $101.0K | 0.00% | +4,477+3.0% | Added |
| D. E. Shaw & Co., Inc. | 158,037 | $102.8K | 0.00% | +354+0.2% | Added |
| AJU IB Investment Co., Ltd. | 175,000 | $113.9K | 0.14% | 00.0% | Unchanged |
| Morgan Stanley | 195,860 | $127.4K | 0.00% | −1,324,276−87.1% | Reduced |
| Charles Schwab Investment Management Inc | 199,901 | $130.1K | 0.00% | −52,094−20.7% | Reduced |
| Tang Capital Management LLC | 200,000 | $130.1K | 0.01% | +200,000 | New |
| Shay Capital LLC | 205,620 | $133.8K | 0.04% | +2,019+1.0% | Added |
| Bank of New York Mellon Corp | 209,222 | $136.1K | 0.00% | −8,405−3.9% | Reduced |
| Two Sigma Advisers, LP | 240,900 | $156.7K | 0.00% | −306,900−56.0% | Reduced |
| Nuveen, LLC | 290,897 | $189.3K | 0.00% | +290,897 | New |
| JPMorgan Chase & Co | 301,407 | $196.1K | 0.00% | +237,362+370.6% | Added |
| Fisher Asset Management, LLC | 352,949 | $229.6K | 0.00% | +81,612+30.1% | Added |
| LPL Financial LLC | 389,932 | $253.7K | 0.00% | +27,700+7.6% | Added |
| DAFNA Capital Management LLC | 437,079 | $284.4K | 0.08% | 00.0% | Unchanged |
| Prudential Financial Inc | 604,580 | $393.3K | 0.00% | +57,070+10.4% | Added |
| Northern Trust Corp | 633,923 | $412.4K | 0.00% | −2,997−0.5% | Reduced |
| Millennium Management LLC | 703,155 | $457.5K | 0.00% | +297,537+73.4% | Added |
| Affinity Asset Advisors, LLC | 752,722 | $489.7K | 0.08% | +752,722 | New |
| Dimensional Fund Advisors LP | 817,479 | $532.6K | 0.00% | −318,978−28.1% | Reduced |
| Renaissance Technologies LLC | 868,997 | $565.4K | 0.00% | −146,214−14.4% | Reduced |
| Velan Capital Investment Management LP | 1,030,000 | $670.1K | 0.69% | +1,000,000+3,333.3% | Added |
| AQR Capital Management LLC | 1,320,917 | $859.4K | 0.00% | +1,206,330+1,052.8% | Added |
| State Street Corp | 1,682,339 | $1.09M | 0.00% | −19,531−1.1% | Reduced |