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 2023
Institutional positions in Sutro Biopharma, Inc. as of Mar 31, 2023. 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
- 116
- −2 vs. Q4 2022
- Shares held
- 53.5M
- +3.54M (+7.1%) vs. Q4 2022
- Total value
- $247.5M
- −$156.1M (−38.7%) vs. Q4 2022
- New holders
- 18
- 50 more added
- Sold out
- 20
- 30 more reduced
1 institution that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2023
Shares, value and share of portfolio for each institution holding Sutro Biopharma, Inc.; share changes are against Q4 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Nisa Investment Advisors, LLC | 40 | $0 | 0.00% | −40−50.0% | Reduced |
| Signaturefd, LLC | 124 | $573 | 0.00% | +124 | New |
| Washington Trust Advisors, Inc. | 179 | $827 | 0.00% | 00.0% | Unchanged |
| Daiwa Securities Group Inc. | 158 | $1.00K | 0.00% | 00.0% | Unchanged |
| Parallel Advisors, LLC | 465 | $2.15K | 0.00% | 00.0% | Unchanged |
| Bogart Wealth, LLC | 500 | $2.31K | 0.00% | +500 | New |
| China Universal Asset Management Co., Ltd. | 779 | $3.60K | 0.00% | +196+33.6% | Added |
| Quadrant Capital Group LLC | 1,976 | $9.13K | 0.00% | 00.0% | Unchanged |
| HighMark Wealth Management LLC | 2,575 | $11.9K | 0.01% | −100−3.7% | Reduced |
| Metropolitan Life Insurance Co | 2,953 | $13.6K | 0.00% | −28−0.9% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 3,144 | $14.5K | 0.00% | +3,144 | New |
| Tower Research Capital LLC (TRC) | 3,165 | $15.0K | 0.00% | +1,822+135.7% | Added |
| Point72 Middle East FZE | 3,281 | $15.2K | 0.00% | +3,281 | New |
| Ameritas Investment Partners, Inc. | 3,400 | $15.7K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 3,986 | $18.0K | 0.00% | −3,465−46.5% | Reduced |
| Values First Advisors, Inc. | 3,942 | $18.2K | 0.01% | +3,942 | New |
| Virtus Fund Advisers, LLC | 4,412 | $20.4K | 0.14% | +4,412 | New |
| Legal & General Group Plc | 5,146 | $23.8K | 0.00% | 00.0% | Unchanged |
| Amalgamated Bank | 5,698 | $26.0K | 0.00% | −823−12.6% | Reduced |
| Federated Hermes, Inc. | 6,433 | $29.7K | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 10,000 | $46.2K | 0.00% | +500+5.3% | Added |
| ProShare Advisors LLC | 10,330 | $47.7K | 0.00% | −1,360−11.6% | Reduced |
| Manchester Capital Management LLC | 10,561 | $48.8K | 0.01% | 00.0% | Unchanged |
| State Board of Administration of Florida Retirement System | 12,293 | $56.8K | 0.00% | 00.0% | Unchanged |
| E Fund Management Co., Ltd. | 12,245 | $57.0K | 0.00% | +12,245 | New |
| Squarepoint Ops LLC | 12,953 | $59.8K | 0.00% | +12,953 | New |
| Vontobel Holding Ltd. | 13,000 | $60.1K | 0.00% | +3,000+30.0% | Added |
| New York State Common Retirement Fund | 13,568 | $62.7K | 0.00% | −17,825−56.8% | Reduced |
| American Century Companies Inc | 14,656 | $65.7K | 0.00% | +1,833+14.3% | Added |
| Prudential Financial Inc | 14,390 | $66.5K | 0.00% | +2,800+24.2% | Added |
| Principal Financial Group Inc | 15,348 | $70.9K | 0.00% | +1,874+13.9% | Added |
| Engineers Gate Manager LP | 18,355 | $84.8K | 0.00% | −4,923−21.1% | Reduced |
| HSBC Holdings PLC | 19,410 | $87.5K | 0.00% | +1,452+8.1% | Added |
| Invesco Ltd. | 19,443 | $89.8K | 0.00% | −43,297−69.0% | Reduced |
| Voya Investment Management LLC | 19,958 | $92.2K | 0.00% | 00.0% | Unchanged |
| California State Teachers Retirement System | 20,043 | $92.6K | 0.00% | −1,478−6.9% | Reduced |
| Gsa Capital Partners LLP | 20,588 | $95.0K | 0.01% | −23,444−53.2% | Reduced |
| Manufacturers Life Insurance Company, The | 20,667 | $95.5K | 0.00% | 00.0% | Unchanged |
| SG Americas Securities, LLC | 20,678 | $96.0K | 0.00% | +1,669+8.8% | Added |
| Allspring Global Investments Holdings, LLC | 23,905 | $110.4K | 0.00% | −6,774−22.1% | Reduced |
| American International Group, Inc. | 26,018 | $120.2K | 0.00% | +518+2.0% | Added |
| Virtus Investment Advisers, Inc. | 28,274 | $130.6K | 0.09% | +28,274 | New |
| MetLife Investment Management | 28,380 | $131.1K | 0.00% | 00.0% | Unchanged |
| Caxton Associates LP | 28,970 | $133.8K | 0.02% | −48,274−62.5% | Reduced |
| Prelude Capital Management, LLC | 30,788 | $142.2K | 0.01% | +11,531+59.9% | Added |
| Deutsche Bank AG | 32,877 | $151.9K | 0.00% | +10,002+43.7% | Added |
| Cornercap Investment Counsel Inc | 36,009 | $166.4K | 0.03% | +248+0.7% | Added |
| Qube Research & Technologies Ltd | 39,632 | $183.1K | 0.00% | +39,632 | New |
| Profund Advisors LLC | 40,247 | $185.9K | 0.01% | +40,247 | New |
| Tejara Capital Ltd | 44,483 | $205.5K | 0.11% | +44,483 | New |
| Algert Global LLC | 45,540 | $210.4K | 0.01% | +45,540 | New |
| Los Angeles Capital Management LLC | 45,854 | $211.8K | 0.00% | −17,270−27.4% | Reduced |
| Wells Fargo & Company | 50,163 | $231.8K | 0.00% | +44,473+781.6% | Added |
| Alliancebernstein L.P. | 51,400 | $237.5K | 0.00% | 00.0% | Unchanged |
| Mirae Asset Global Investments Co., Ltd. | 53,608 | $247.7K | 0.00% | +34,234+176.7% | Added |
| Adage Capital Partners GP, L.L.C. | 55,720 | $257.4K | 0.00% | +55,720 | New |
| Public Employees Retirement System of Ohio | 61,778 | $285.0K | 0.00% | 00.0% | Unchanged |
| Putnam Investments LLC | 71,142 | $328.7K | 0.00% | +71,142 | New |
| JPMorgan Chase & Co | 71,669 | $332.0K | 0.00% | −116,109−61.8% | Reduced |
| Susquehanna Fundamental Investments, LLC | 72,985 | $337.2K | 0.01% | −4,079−5.3% | Reduced |
| UBS Group AG | 82,700 | $382.1K | 0.00% | +10,037+13.8% | Added |
| FMR LLC | 83,574 | $386.1K | 0.00% | −540,760−86.6% | Reduced |
| Rhumbline Advisers | 84,696 | $391.0K | 0.00% | +6,925+8.9% | Added |
| DAFNA Capital Management LLC | 84,700 | $391.3K | 0.12% | +84,700 | New |
| Tekla Capital Management LLC | 98,354 | $454.4K | 0.02% | −49,177−33.3% | Reduced |
| XTX Topco Ltd | 100,782 | $465.6K | 0.10% | −587−0.6% | Reduced |
| BNP Paribas Arbitrage, SA | 104,345 | $482.1K | 0.00% | +72,184+224.4% | Added |
| State of Wisconsin Investment Board | 119,500 | $552.1K | 0.00% | +8,600+7.8% | Added |
| Simplify Asset Management Inc. | 120,000 | $554.4K | 0.10% | +120,000 | New |
| Barclays PLC | 121,144 | $559.7K | 0.00% | +39,245+47.9% | Added |
| Norges Bank | 124,900 | $577.0K | 0.00% | −81,300−39.4% | Reduced |
| Renaissance Technologies LLC | 129,397 | $598.0K | 0.00% | +99,497+332.8% | Added |
| Ameriprise Financial Inc | 129,623 | $598.9K | 0.00% | +47,462+57.8% | Added |
| Cubist Systematic Strategies, LLC | 132,830 | $613.7K | 0.01% | +47,440+55.6% | Added |
| Russell Investments Group, Ltd. | 139,829 | $646.0K | 0.00% | +30,866+28.3% | Added |
| Morgan Stanley | 144,418 | $667.2K | 0.00% | −83,509−36.6% | Reduced |
| Charles Schwab Investment Management Inc | 145,940 | $674.2K | 0.00% | +1,793+1.2% | Added |
| D. E. Shaw & Co., Inc. | 155,199 | $717.0K | 0.00% | −120,392−43.7% | Reduced |
| Susquehanna International Group, LLP | 157,838 | $729.2K | 0.00% | +157,838 | New |
| Citigroup Inc | 172,131 | $795.2K | 0.00% | +128,437+293.9% | Added |
| Trexquant Investment LP | 182,864 | $844.8K | 0.02% | +28,658+18.6% | Added |
| Rafferty Asset Management, LLC | 215,729 | $996.7K | 0.01% | +117,092+118.7% | Added |
| Marshall Wace, LLP | 217,905 | $1.01M | 0.00% | −342,010−61.1% | Reduced |
| Man Group plc | – | $1.04M | 0.00% | – | – |
| Nuveen Asset Management, LLC | 238,461 | $1.10M | 0.00% | +30,331+14.6% | Added |
| Bank of New York Mellon Corp | 240,244 | $1.11M | 0.00% | +1,539+0.6% | Added |
| Pentwater Capital Management LP | 255,000 | $1.18M | 0.02% | +30,000+13.3% | Added |
| Bank of America Corp | 315,297 | $1.46M | 0.00% | +169,707+116.6% | Added |
| Citadel Advisors LLC | 329,168 | $1.52M | 0.00% | +209,166+174.3% | Added |
| Two Sigma Investments, LP | 340,412 | $1.57M | 0.00% | +102,517+43.1% | Added |
| Schonfeld Strategic Advisors LLC | 345,996 | $1.60M | 0.02% | +62,196+21.9% | Added |
| AQR Capital Management LLC | 393,696 | $1.82M | 0.00% | +195,590+98.7% | Added |
| Two Sigma Advisers, LP | 421,300 | $1.95M | 0.01% | +38,200+10.0% | Added |
| Panagora Asset Management Inc | 431,982 | $2.00M | 0.01% | +119,001+38.0% | Added |
| Northern Trust Corp | 454,907 | $2.10M | 0.00% | −5,656−1.2% | Reduced |
| Jacobs Levy Equity Management, Inc | 664,601 | $3.07M | 0.02% | −2,875−0.4% | Reduced |
| Acadian Asset Management LLC | 687,235 | $3.17M | 0.01% | +125,407+22.3% | Added |
| Millennium Management LLC | 891,616 | $4.12M | 0.00% | −477,405−34.9% | Reduced |
| Kynam Capital Management, LP | 901,836 | $4.17M | 0.54% | +497,292+122.9% | Added |
| Geode Capital Management, LLC | 1,056,314 | $4.88M | 0.00% | +35,235+3.5% | Added |