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 | $358.9M |
| 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 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 |
|---|---|---|---|---|---|
| Suvretta Capital Management, LLC | 5,689,086 | $26.3M | 1.27% | +123,987+2.2% | Added |
| BlackRock Inc. | 5,020,823 | $23.2M | 0.00% | +160,683+3.3% | Added |
| Rubric Capital Management LP | 4,360,487 | $20.1M | 0.80% | +1,148,615+35.8% | Added |
| BVF Inc | 3,347,946 | $15.5M | 0.57% | 00.0% | Unchanged |
| State Street Corp | 2,922,712 | $13.5M | 0.00% | +1,071,427+57.9% | Added |
| Franklin Resources Inc | 2,837,869 | $13.1M | 0.01% | −2660.0% | Reduced |
| Vanguard Group Inc | 2,776,962 | $12.8M | 0.00% | +132,290+5.0% | Added |
| Holocene Advisors, LP | 2,132,873 | $9.85M | 0.05% | −180,669−7.8% | Reduced |
| Baillie Gifford & Co | 1,867,654 | $8.63M | 0.01% | −961−0.1% | Reduced |
| Frazier Life Sciences Management, L.P. | 1,776,479 | $8.21M | 0.59% | 00.0% | Unchanged |
| Candriam Luxembourg S.C.A. | 1,860,775 | $7.91M | 0.05% | +1,071,591+135.8% | Added |
| Samsara BioCapital, LLC | 1,675,579 | $7.74M | 1.60% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 1,500,613 | $6.93M | 0.00% | +423,145+39.3% | Added |
| Dimensional Fund Advisors LP | 1,173,199 | $5.42M | 0.00% | +505,656+75.7% | Added |
| Verition Fund Management LLC | 1,145,786 | $5.29M | 0.08% | −458,443−28.6% | Reduced |
| Parkman Healthcare Partners LLC | 1,100,038 | $5.08M | 1.11% | +234,063+27.0% | Added |
| Geode Capital Management, LLC | 1,056,314 | $4.88M | 0.00% | +35,235+3.5% | Added |
| Kynam Capital Management, LP | 901,836 | $4.17M | 0.54% | +497,292+122.9% | Added |
| Millennium Management LLC | 891,616 | $4.12M | 0.00% | −477,405−34.9% | Reduced |
| Acadian Asset Management LLC | 687,235 | $3.17M | 0.01% | +125,407+22.3% | Added |
| Jacobs Levy Equity Management, Inc | 664,601 | $3.07M | 0.02% | −2,875−0.4% | Reduced |
| Northern Trust Corp | 454,907 | $2.10M | 0.00% | −5,656−1.2% | Reduced |
| Panagora Asset Management Inc | 431,982 | $2.00M | 0.01% | +119,001+38.0% | Added |
| Two Sigma Advisers, LP | 421,300 | $1.95M | 0.01% | +38,200+10.0% | Added |
| AQR Capital Management LLC | 393,696 | $1.82M | 0.00% | +195,590+98.7% | Added |
| Schonfeld Strategic Advisors LLC | 345,996 | $1.60M | 0.02% | +62,196+21.9% | Added |
| Two Sigma Investments, LP | 340,412 | $1.57M | 0.00% | +102,517+43.1% | Added |
| Citadel Advisors LLC | 329,168 | $1.52M | 0.00% | +209,166+174.3% | Added |
| Bank of America Corp | 315,297 | $1.46M | 0.00% | +169,707+116.6% | Added |
| Pentwater Capital Management LP | 255,000 | $1.18M | 0.02% | +30,000+13.3% | Added |
| Bank of New York Mellon Corp | 240,244 | $1.11M | 0.00% | +1,539+0.6% | Added |
| Nuveen Asset Management, LLC | 238,461 | $1.10M | 0.00% | +30,331+14.6% | Added |
| Man Group plc | – | $1.04M | 0.00% | – | – |
| Marshall Wace, LLP | 217,905 | $1.01M | 0.00% | −342,010−61.1% | Reduced |
| Rafferty Asset Management, LLC | 215,729 | $996.7K | 0.01% | +117,092+118.7% | Added |
| Trexquant Investment LP | 182,864 | $844.8K | 0.02% | +28,658+18.6% | Added |
| Citigroup Inc | 172,131 | $795.2K | 0.00% | +128,437+293.9% | Added |
| Susquehanna International Group, LLP | 157,838 | $729.2K | 0.00% | +157,838 | New |
| D. E. Shaw & Co., Inc. | 155,199 | $717.0K | 0.00% | −120,392−43.7% | Reduced |
| Charles Schwab Investment Management Inc | 145,940 | $674.2K | 0.00% | +1,793+1.2% | Added |
| Morgan Stanley | 144,418 | $667.2K | 0.00% | −83,509−36.6% | Reduced |
| Russell Investments Group, Ltd. | 139,829 | $646.0K | 0.00% | +30,866+28.3% | Added |
| Cubist Systematic Strategies, LLC | 132,830 | $613.7K | 0.01% | +47,440+55.6% | Added |
| Ameriprise Financial Inc | 129,623 | $598.9K | 0.00% | +47,462+57.8% | Added |
| Renaissance Technologies LLC | 129,397 | $598.0K | 0.00% | +99,497+332.8% | Added |
| Norges Bank | 124,900 | $577.0K | 0.00% | −81,300−39.4% | Reduced |
| Barclays PLC | 121,144 | $559.7K | 0.00% | +39,245+47.9% | Added |
| Simplify Asset Management Inc. | 120,000 | $554.4K | 0.10% | +120,000 | New |
| State of Wisconsin Investment Board | 119,500 | $552.1K | 0.00% | +8,600+7.8% | Added |
| BNP Paribas Arbitrage, SA | 104,345 | $482.1K | 0.00% | +72,184+224.4% | Added |
| XTX Topco Ltd | 100,782 | $465.6K | 0.10% | −587−0.6% | Reduced |
| Tekla Capital Management LLC | 98,354 | $454.4K | 0.02% | −49,177−33.3% | Reduced |
| DAFNA Capital Management LLC | 84,700 | $391.3K | 0.12% | +84,700 | New |
| Rhumbline Advisers | 84,696 | $391.0K | 0.00% | +6,925+8.9% | Added |
| FMR LLC | 83,574 | $386.1K | 0.00% | −540,760−86.6% | Reduced |
| UBS Group AG | 82,700 | $382.1K | 0.00% | +10,037+13.8% | Added |
| Susquehanna Fundamental Investments, LLC | 72,985 | $337.2K | 0.01% | −4,079−5.3% | Reduced |
| JPMorgan Chase & Co | 71,669 | $332.0K | 0.00% | −116,109−61.8% | Reduced |
| Putnam Investments LLC | 71,142 | $328.7K | 0.00% | +71,142 | New |
| Public Employees Retirement System of Ohio | 61,778 | $285.0K | 0.00% | 00.0% | Unchanged |
| Adage Capital Partners GP, L.L.C. | 55,720 | $257.4K | 0.00% | +55,720 | New |
| Mirae Asset Global Investments Co., Ltd. | 53,608 | $247.7K | 0.00% | +34,234+176.7% | Added |
| Alliancebernstein L.P. | 51,400 | $237.5K | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 50,163 | $231.8K | 0.00% | +44,473+781.6% | Added |
| Los Angeles Capital Management LLC | 45,854 | $211.8K | 0.00% | −17,270−27.4% | Reduced |
| Algert Global LLC | 45,540 | $210.4K | 0.01% | +45,540 | New |
| Tejara Capital Ltd | 44,483 | $205.5K | 0.11% | +44,483 | New |
| Profund Advisors LLC | 40,247 | $185.9K | 0.01% | +40,247 | New |
| Qube Research & Technologies Ltd | 39,632 | $183.1K | 0.00% | +39,632 | New |
| Cornercap Investment Counsel Inc | 36,009 | $166.4K | 0.03% | +248+0.7% | Added |
| Deutsche Bank AG | 32,877 | $151.9K | 0.00% | +10,002+43.7% | Added |
| Prelude Capital Management, LLC | 30,788 | $142.2K | 0.01% | +11,531+59.9% | Added |
| Caxton Associates LP | 28,970 | $133.8K | 0.02% | −48,274−62.5% | Reduced |
| MetLife Investment Management | 28,380 | $131.1K | 0.00% | 00.0% | Unchanged |
| Virtus Investment Advisers, Inc. | 28,274 | $130.6K | 0.09% | +28,274 | New |
| American International Group, Inc. | 26,018 | $120.2K | 0.00% | +518+2.0% | Added |
| Allspring Global Investments Holdings, LLC | 23,905 | $110.4K | 0.00% | −6,774−22.1% | Reduced |
| SG Americas Securities, LLC | 20,678 | $96.0K | 0.00% | +1,669+8.8% | Added |
| Manufacturers Life Insurance Company, The | 20,667 | $95.5K | 0.00% | 00.0% | Unchanged |
| Gsa Capital Partners LLP | 20,588 | $95.0K | 0.01% | −23,444−53.2% | Reduced |
| California State Teachers Retirement System | 20,043 | $92.6K | 0.00% | −1,478−6.9% | Reduced |
| Voya Investment Management LLC | 19,958 | $92.2K | 0.00% | 00.0% | Unchanged |
| Invesco Ltd. | 19,443 | $89.8K | 0.00% | −43,297−69.0% | Reduced |
| HSBC Holdings PLC | 19,410 | $87.5K | 0.00% | +1,452+8.1% | Added |
| Engineers Gate Manager LP | 18,355 | $84.8K | 0.00% | −4,923−21.1% | Reduced |
| Principal Financial Group Inc | 15,348 | $70.9K | 0.00% | +1,874+13.9% | Added |
| Prudential Financial Inc | 14,390 | $66.5K | 0.00% | +2,800+24.2% | Added |
| American Century Companies Inc | 14,656 | $65.7K | 0.00% | +1,833+14.3% | Added |
| New York State Common Retirement Fund | 13,568 | $62.7K | 0.00% | −17,825−56.8% | Reduced |
| Vontobel Holding Ltd. | 13,000 | $60.1K | 0.00% | +3,000+30.0% | Added |
| Squarepoint Ops LLC | 12,953 | $59.8K | 0.00% | +12,953 | New |
| E Fund Management Co., Ltd. | 12,245 | $57.0K | 0.00% | +12,245 | New |
| State Board of Administration of Florida Retirement System | 12,293 | $56.8K | 0.00% | 00.0% | Unchanged |
| Manchester Capital Management LLC | 10,561 | $48.8K | 0.01% | 00.0% | Unchanged |
| ProShare Advisors LLC | 10,330 | $47.7K | 0.00% | −1,360−11.6% | Reduced |
| Advisor Group Holdings, Inc. | 10,000 | $46.2K | 0.00% | +500+5.3% | Added |
| Federated Hermes, Inc. | 6,433 | $29.7K | 0.00% | 00.0% | Unchanged |
| Amalgamated Bank | 5,698 | $26.0K | 0.00% | −823−12.6% | Reduced |
| Legal & General Group Plc | 5,146 | $23.8K | 0.00% | 00.0% | Unchanged |
| Virtus Fund Advisers, LLC | 4,412 | $20.4K | 0.14% | +4,412 | New |