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, Q2 2025
Institutional positions in Sutro Biopharma, Inc. as of Jun 30, 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
- 101
- −12 vs. Q1 2025
- Shares held
- 55.5M
- −5.92M (−9.6%) vs. Q1 2025
- Total value
- $39.6M
- −$341.8K (−0.9%) vs. Q1 2025
- New holders
- 31
- 22 more added
- Sold out
- 43
- 24 more reduced
Compare with Q1 2025: 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, Q2 2025
Shares, value and share of portfolio for each institution holding Sutro Biopharma, Inc.; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Avion Wealth | 716 | $0 | 0.00% | +716 | New |
| SBI Securities Co., Ltd. | 2 | $1 | 0.00% | −1−33.3% | Reduced |
| Caitong International Asset Management Co., Ltd | 1 | $1 | 0.00% | +1 | New |
| Group One Trading, L.P. | 20 | $14 | 0.00% | +20 | New |
| Comerica Bank | 49 | $35 | 0.00% | 00.0% | Unchanged |
| IFP Advisors, Inc | 78 | $56 | 0.00% | +78 | New |
| Clearstead Advisors, LLC | 121 | $87 | 0.00% | +121 | New |
| HighMark Wealth Management LLC | 225 | $161 | 0.00% | 00.0% | Unchanged |
| Parallel Advisors, LLC | 465 | $332 | 0.00% | 00.0% | Unchanged |
| Bogart Wealth, LLC | 500 | $357 | 0.00% | 00.0% | Unchanged |
| Raymond James Financial Inc | 500 | $357 | 0.00% | +500 | New |
| True Wealth Design, LLC | 559 | $400 | 0.00% | +559 | New |
| Essential Partners LLC | 654 | $467 | 0.00% | +654 | New |
| Wells Fargo & Company | 693 | $495 | 0.00% | −48,441−98.6% | Reduced |
| Rialto Wealth Management, LLC | 707 | $505 | 0.00% | +707 | New |
| The PNC Financial Services Group, Inc. | 769 | $549 | 0.00% | +103+15.5% | Added |
| Rise Advisors, LLC | 769 | $549 | 0.00% | +769 | New |
| Accredited Wealth Management, LLC | 1,000 | $714 | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 1,259 | $899 | 0.00% | +1,259 | New |
| UMA Financial Services, Inc. | 1,304 | $931 | 0.00% | 00.0% | Unchanged |
| EverSource Wealth Advisors, LLC | 1,471 | $1.05K | 0.00% | +614+71.6% | Added |
| GF Fund Management Co. Ltd. | 1,982 | $1.42K | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 2,398 | $1.71K | 0.00% | −152,837−98.5% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 3,263 | $2.33K | 0.00% | +587+21.9% | Added |
| Gen-Wealth Partners Inc | 4,042 | $2.89K | 0.00% | 00.0% | Unchanged |
| GWM Advisors LLC | 4,113 | $2.94K | 0.00% | +4,113 | New |
| Cubist Systematic Strategies, LLC | 6,078 | $4.34K | 0.00% | +6,078 | New |
| Barclays PLC | 6,618 | $4.72K | 0.00% | −109,668−94.3% | Reduced |
| Lazard Asset Management LLC | 10,947 | $7.00K | 0.00% | +10,947 | New |
| Quantinno Capital Management LP | 10,170 | $7.26K | 0.00% | +10,170 | New |
| Revolve Wealth Partners, LLC | 10,312 | $7.36K | 0.00% | +10,312 | New |
| Captrust Financial Advisors | 10,998 | $7.85K | 0.00% | +10,998 | New |
| Pallas Capital Advisors LLC | 11,110 | $7.93K | 0.00% | +11,110 | New |
| FMR LLC | 11,639 | $8.31K | 0.00% | −49,910−81.1% | Reduced |
| Ground Swell Capital, LLC | 12,683 | $9.05K | 0.01% | +12,683 | New |
| Bridgeway Capital Management, LLC | 12,900 | $9.21K | 0.00% | 00.0% | Unchanged |
| Axxcess Wealth Management, LLC | 12,907 | $9.21K | 0.00% | 00.0% | Unchanged |
| Mariner, LLC | 13,630 | $9.73K | 0.00% | +13,630 | New |
| Callan Family Office, LLC | 16,177 | $11.5K | 0.00% | +16,177 | New |
| China Universal Asset Management Co., Ltd. | 16,964 | $12.1K | 0.00% | +424+2.6% | Added |
| Advisor Group Holdings, Inc. | 21,149 | $15.0K | 0.00% | −1,854−8.1% | Reduced |
| PEAK6 LLC | 21,306 | $15.2K | 0.00% | 00.0% | Unchanged |
| Hudson Bay Capital Management LP | 22,571 | $16.1K | 0.00% | +22,571 | New |
| Wealth Enhancement Advisory Services, LLC | 21,201 | $16.2K | 0.00% | +4,002+23.3% | Added |
| Resources Investment Advisors, LLC. | 24,099 | $17.2K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 24,879 | $17.8K | 0.00% | +11,172+81.5% | Added |
| HSBC Holdings PLC | 24,739 | $18.1K | 0.00% | −35,724−59.1% | Reduced |
| Citigroup Inc | 28,528 | $20.4K | 0.00% | −36,777−56.3% | Reduced |
| Prudential Financial Inc | 35,500 | $25.3K | 0.00% | −569,080−94.1% | Reduced |
| Catalyst Funds Management Pty Ltd | 38,500 | $27.5K | 0.01% | +38,500 | New |
| Vontobel Holding Ltd. | 50,000 | $35.7K | 0.00% | 00.0% | Unchanged |
| CWM, LLC | 56,657 | $40.0K | 0.00% | +23,941+73.2% | Added |
| JustInvest LLC | 60,617 | $43.3K | 0.00% | +38,561+174.8% | Added |
| Point72 Asia (Singapore) Pte. Ltd. | 61,068 | $43.6K | 0.01% | +61,068 | New |
| Two Sigma Advisers, LP | 66,300 | $47.3K | 0.00% | −174,600−72.5% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 66,591 | $47.5K | 0.00% | +66,591 | New |
| Standard Life Aberdeen plc | 69,389 | $49.5K | 0.00% | 00.0% | Unchanged |
| Bank of America Corp | 78,946 | $56.3K | 0.00% | −30,155−27.6% | Reduced |
| Jain Global LLC | 84,472 | $60.3K | 0.00% | +84,472 | New |
| HRT Financial LP | 85,509 | $61.0K | 0.00% | +58,731+219.3% | Added |
| Omers Administration Corp | 95,150 | $67.9K | 0.00% | 00.0% | Unchanged |
| Invesco Ltd. | 103,320 | $73.8K | 0.00% | +11,181+12.1% | Added |
| Cerity Partners LLC | 105,437 | $75.3K | 0.00% | +66,372+169.9% | Added |
| Two Sigma Investments, LP | 115,068 | $82.1K | 0.00% | +19,187+20.0% | Added |
| Qube Research & Technologies Ltd | 115,401 | $82.4K | 0.00% | +115,401 | New |
| Ieq Capital, LLC | 123,319 | $88.0K | 0.00% | +48,253+64.3% | Added |
| RBF Capital, LLC | 160,000 | $114.2K | 0.01% | +160,000 | New |
| Northern Trust Corp | 167,734 | $119.7K | 0.00% | −466,189−73.5% | Reduced |
| JPMorgan Chase & Co | 173,477 | $123.8K | 0.00% | −127,930−42.4% | Reduced |
| AJU IB Investment Co., Ltd. | 175,000 | $124.9K | 0.14% | 00.0% | Unchanged |
| Royal Bank of Canada | 221,829 | $159.0K | 0.00% | +215,632+3,479.6% | Added |
| Marshall Wace, LLP | 234,431 | $166.4K | 0.00% | +234,431 | New |
| Susquehanna International Group, LLP | 245,206 | $175.1K | 0.00% | +142,864+139.6% | Added |
| Morgan Stanley | 258,595 | $184.6K | 0.00% | +62,735+32.0% | Added |
| Shay Capital LLC | 259,889 | $185.5K | 0.04% | +54,269+26.4% | Added |
| State Street Corp | 342,652 | $244.6K | 0.00% | −1,339,687−79.6% | Reduced |
| Fisher Asset Management, LLC | 352,949 | $252.0K | 0.00% | 00.0% | Unchanged |
| LPL Financial LLC | 370,748 | $264.7K | 0.00% | −19,184−4.9% | Reduced |
| Goldman Sachs Group Inc | 405,748 | $289.7K | 0.00% | −1,306,367−76.3% | Reduced |
| DAFNA Capital Management LLC | 437,079 | $312.0K | 0.09% | 00.0% | Unchanged |
| Cantor Fitzgerald, L. P. | 500,000 | $356.9K | 0.01% | +500,000 | New |
| Dimensional Fund Advisors LP | 628,473 | $448.8K | 0.00% | −189,006−23.1% | Reduced |
| Jane Street Group, LLC | 688,850 | $491.8K | 0.00% | +688,850 | New |
| Affinity Asset Advisors, LLC | 752,722 | $537.4K | 0.08% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 816,915 | $583.4K | 0.00% | −1,072,357−56.8% | Reduced |
| Renaissance Technologies LLC | 913,197 | $651.9K | 0.00% | +44,200+5.1% | Added |
| AQR Capital Management LLC | 1,012,716 | $723.0K | 0.00% | −308,201−23.3% | Reduced |
| UBS Group AG | 1,618,884 | $1.16M | 0.00% | +1,543,313+2,042.2% | Added |
| Adage Capital Partners GP, L.L.C. | 2,000,000 | $1.43M | 0.00% | 00.0% | Unchanged |
| BlackRock, Inc. | 2,107,008 | $1.50M | 0.00% | −4,097,776−66.0% | Reduced |
| Samsara BioCapital, LLC | 2,196,814 | $1.57M | 0.32% | 00.0% | Unchanged |
| Eversept Partners, LP | 2,292,261 | $1.64M | 0.16% | 00.0% | Unchanged |
| Tang Capital Management LLC | 2,561,586 | $1.83M | 0.09% | +2,361,586+1,180.8% | Added |
| Vestal Point Capital, LP | 2,600,000 | $1.86M | 0.10% | 00.0% | Unchanged |
| Merck & Co., Inc. | 2,723,509 | $1.94M | 0.90% | 00.0% | Unchanged |
| Acadian Asset Management LLC | 3,042,238 | $2.17M | 0.00% | −92,348−2.9% | Reduced |
| Velan Capital Investment Management LP | 3,060,000 | $2.18M | 2.19% | +2,030,000+197.1% | Added |
| Vanguard Group Inc | 4,115,250 | $2.94M | 0.00% | −279,994−6.4% | Reduced |
| Millennium Management LLC | 4,732,243 | $3.38M | 0.00% | +4,029,088+573.0% | Added |
| Kynam Capital Management, LP | 5,088,099 | $3.63M | 0.39% | −353,348−6.5% | Reduced |