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, Q3 2023
Institutional positions in Sutro Biopharma, Inc. as of Sep 30, 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
- 109
- −10 vs. Q2 2023
- Shares held
- 55.9M
- +1.89M (+3.5%) vs. Q2 2023
- Total value
- $194.3M
- −$56.8M (−22.6%) vs. Q2 2023
- New holders
- 7
- 44 more added
- Sold out
- 17
- 32 more reduced
1 institution that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2023: 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, Q3 2023
Shares, value and share of portfolio for each institution holding Sutro Biopharma, Inc.; share changes are against Q2 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock Inc. | 5,986,600 | $20.8M | 0.00% | −18,957−0.3% | Reduced |
| Suvretta Capital Management, LLC | 5,883,693 | $20.4M | 1.10% | 00.0% | Unchanged |
| BVF Inc | 3,347,946 | $11.6M | 0.31% | 00.0% | Unchanged |
| Rubric Capital Management LP | 3,344,810 | $11.6M | 0.49% | −703,934−17.4% | Reduced |
| Adage Capital Partners GP, L.L.C. | 3,105,132 | $10.8M | 0.02% | +2,879,412+1,275.7% | Added |
| Vanguard Group Inc | 2,868,762 | $9.95M | 0.00% | +38,854+1.4% | Added |
| Franklin Resources Inc | 2,834,361 | $9.84M | 0.00% | −33,174−1.2% | Reduced |
| Verition Fund Management LLC | 2,501,676 | $8.68M | 0.12% | +555,016+28.5% | Added |
| Holocene Advisors, LP | 2,132,873 | $7.40M | 0.03% | 00.0% | Unchanged |
| Baillie Gifford & Co | 1,867,654 | $6.48M | 0.01% | 00.0% | Unchanged |
| Samsara BioCapital, LLC | 1,675,579 | $5.81M | 1.78% | 00.0% | Unchanged |
| Kynam Capital Management, LP | 1,552,675 | $5.39M | 0.90% | +52,675+3.5% | Added |
| Candriam Luxembourg S.C.A. | 1,538,234 | $5.34M | 0.04% | −90,000−5.5% | Reduced |
| Millennium Management LLC | 1,239,251 | $4.30M | 0.00% | −264,343−17.6% | Reduced |
| Geode Capital Management, LLC | 1,197,152 | $4.15M | 0.00% | +35,620+3.1% | Added |
| Parkman Healthcare Partners LLC | 1,182,168 | $4.10M | 0.75% | +38,307+3.3% | Added |
| Dimensional Fund Advisors LP | 1,129,823 | $3.92M | 0.00% | −81,965−6.8% | Reduced |
| State Street Corp | 1,105,785 | $3.84M | 0.00% | +11,664+1.1% | Added |
| Goldman Sachs Group Inc | 1,091,391 | $3.79M | 0.00% | −7,483−0.7% | Reduced |
| Frazier Life Sciences Management, L.P. | 780,000 | $2.71M | 0.18% | 00.0% | Unchanged |
| Acadian Asset Management LLC | 773,867 | $2.68M | 0.01% | +119,399+18.2% | Added |
| Eversept Partners, LP | 769,638 | $2.67M | 0.30% | +21,726+2.9% | Added |
| Point72 Asset Management, L.P. | 533,149 | $1.85M | 0.01% | +324,145+155.1% | Added |
| Northern Trust Corp | 485,822 | $1.69M | 0.00% | +2,750+0.6% | Added |
| Vontobel Holding Ltd. | 450,339 | $1.56M | 0.01% | +34,693+8.3% | Added |
| Sectoral Asset Management Inc | 432,339 | $1.50M | 0.29% | +31,693+7.9% | Added |
| Pentwater Capital Management LP | 430,000 | $1.49M | 0.01% | +30,000+7.5% | Added |
| Jacobs Levy Equity Management, Inc | 425,691 | $1.48M | 0.01% | −145,702−25.5% | Reduced |
| Panagora Asset Management Inc | 369,148 | $1.28M | 0.01% | +28,160+8.3% | Added |
| Schonfeld Strategic Advisors LLC | 355,000 | $1.23M | 0.01% | −1,300−0.4% | Reduced |
| UBS Oconnor LLC | 330,000 | $1.15M | 0.02% | +330,000 | New |
| Renaissance Technologies LLC | 302,897 | $1.05M | 0.00% | +33,400+12.4% | Added |
| DAFNA Capital Management LLC | 283,079 | $982.3K | 0.31% | +40,300+16.6% | Added |
| Bank of New York Mellon Corp | 261,451 | $907.2K | 0.00% | +8,633+3.4% | Added |
| Nuveen Asset Management, LLC | 212,145 | $736.1K | 0.00% | −1,474−0.7% | Reduced |
| Fisher Asset Management, LLC | 196,517 | $681.9K | 0.00% | 00.0% | Unchanged |
| Two Sigma Advisers, LP | 185,200 | $642.6K | 0.00% | −164,500−47.0% | Reduced |
| Charles Schwab Investment Management Inc | 160,876 | $558.2K | 0.00% | 00.0% | Unchanged |
| Morgan Stanley | 153,255 | $531.8K | 0.00% | −36,341−19.2% | Reduced |
| Susquehanna International Group, LLP | 120,405 | $417.8K | 0.00% | −14,578−10.8% | Reduced |
| Simplify Asset Management Inc. | 120,000 | $416.4K | 0.07% | 00.0% | Unchanged |
| State of Wisconsin Investment Board | 116,000 | $402.5K | 0.00% | −16,700−12.6% | Reduced |
| Russell Investments Group, Ltd. | 108,595 | $376.8K | 0.00% | −28,207−20.6% | Reduced |
| Ameriprise Financial Inc | 105,580 | $366.4K | 0.00% | −20,016−15.9% | Reduced |
| Prudential Financial Inc | 104,990 | $364.3K | 0.00% | +9,800+10.3% | Added |
| Man Group plc | – | $353.3K | 0.00% | – | – |
| Rhumbline Advisers | 91,898 | $318.9K | 0.00% | +2,250+2.5% | Added |
| Bank of America Corp | 89,992 | $312.3K | 0.00% | +21,807+32.0% | Added |
| Tejara Capital Ltd | 88,682 | $307.7K | 0.18% | 00.0% | Unchanged |
| FMR LLC | 80,260 | $278.5K | 0.00% | +750+0.9% | Added |
| JPMorgan Chase & Co | 76,824 | $266.6K | 0.00% | +2,115+2.8% | Added |
| Alliancebernstein L.P. | 75,300 | $261.3K | 0.00% | +3,490+4.9% | Added |
| Susquehanna Fundamental Investments, LLC | 71,113 | $246.8K | 0.02% | −1,872−2.6% | Reduced |
| Putnam Investments LLC | 68,393 | $237.3K | 0.00% | −593−0.9% | Reduced |
| Los Angeles Capital Management LLC | 68,324 | $237.1K | 0.00% | +11,800+20.9% | Added |
| Gsa Capital Partners LLP | 67,754 | $235.0K | 0.02% | +67,754 | New |
| Barclays PLC | 62,579 | $217.1K | 0.00% | +18,093+40.7% | Added |
| Public Employees Retirement System of Ohio | 61,778 | $214.0K | 0.00% | 00.0% | Unchanged |
| Citadel Advisors LLC | 48,589 | $168.6K | 0.00% | +20,261+71.5% | Added |
| Mirae Asset Global Investments Co., Ltd. | 45,441 | $157.7K | 0.00% | +56+0.1% | Added |
| American Century Companies Inc | 37,218 | $129.1K | 0.00% | +8,711+30.6% | Added |
| UBS Group AG | 35,973 | $124.8K | 0.00% | +5,909+19.7% | Added |
| Cornercap Investment Counsel Inc | 35,690 | $123.8K | 0.02% | −473−1.3% | Reduced |
| Deutsche Bank AG | 33,782 | $117.2K | 0.00% | +5,848+20.9% | Added |
| BNP Paribas Arbitrage, SA | 33,100 | $114.9K | 0.00% | +6,481+24.3% | Added |
| SG Americas Securities, LLC | 32,465 | $113.0K | 0.00% | +32,465 | New |
| American International Group, Inc. | 30,017 | $104.2K | 0.00% | +1,067+3.7% | Added |
| MetLife Investment Management | 28,380 | $98.5K | 0.00% | 00.0% | Unchanged |
| Virtus Investment Advisers, Inc. | 28,274 | $98.1K | 0.07% | 00.0% | Unchanged |
| HSBC Holdings PLC | 27,771 | $97.6K | 0.00% | +27,771 | New |
| Exchange Traded Concepts, LLC | 26,764 | $92.9K | 0.00% | +1,153+4.5% | Added |
| Manufacturers Life Insurance Company, The | 25,748 | $89.3K | 0.00% | 00.0% | Unchanged |
| Voya Investment Management LLC | 24,701 | $85.7K | 0.00% | 00.0% | Unchanged |
| AQR Capital Management LLC | 23,758 | $82.4K | 0.00% | −57,943−70.9% | Reduced |
| Principal Financial Group Inc | 22,150 | $76.9K | 0.00% | +3,168+16.7% | Added |
| Invesco Ltd. | 21,386 | $74.2K | 0.00% | −396−1.8% | Reduced |
| XTX Topco Ltd | 20,446 | $70.9K | 0.01% | +20,446 | New |
| Trexquant Investment LP | 20,421 | $70.9K | 0.00% | −82,127−80.1% | Reduced |
| Wells Fargo & Company | 19,517 | $67.7K | 0.00% | −8,058−29.2% | Reduced |
| Prelude Capital Management, LLC | 18,935 | $65.7K | 0.01% | −11,237−37.2% | Reduced |
| Allspring Global Investments Holdings, LLC | 17,319 | $60.1K | 0.00% | −908−5.0% | Reduced |
| State Board of Administration of Florida Retirement System | 17,273 | $59.9K | 0.00% | +200+1.2% | Added |
| Tower Research Capital LLC (TRC) | 15,128 | $52.5K | 0.00% | +11,708+342.3% | Added |
| New York State Common Retirement Fund | 13,756 | $47.7K | 0.00% | +257+1.9% | Added |
| Jane Street Group, LLC | 13,279 | $46.1K | 0.00% | −132,683−90.9% | Reduced |
| California State Teachers Retirement System | 13,272 | $46.1K | 0.00% | −6,736−33.7% | Reduced |
| Price T Rowe Associates Inc | 13,114 | $46.0K | 0.00% | +1,566+13.6% | Added |
| ProShare Advisors LLC | 11,770 | $40.8K | 0.00% | +38+0.3% | Added |
| Diversified Trust Co | 11,189 | $38.8K | 0.00% | 00.0% | Unchanged |
| Manchester Capital Management LLC | 10,561 | $36.6K | 0.01% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 10,250 | $35.6K | 0.00% | +250+2.5% | Added |
| Royal Bank of Canada | 10,119 | $35.0K | 0.00% | +3,844+61.3% | Added |
| Federated Hermes, Inc. | 6,387 | $22.2K | 0.00% | 00.0% | Unchanged |
| Amalgamated Bank | 5,698 | $20.0K | 0.00% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 4,967 | $17.2K | 0.00% | 00.0% | Unchanged |
| Legal & General Group Plc | 4,960 | $17.2K | 0.00% | −825−14.3% | Reduced |
| Qube Research & Technologies Ltd | 4,953 | $17.2K | 0.00% | +4,953 | New |
| Virtus Fund Advisers, LLC | 4,412 | $15.3K | 0.11% | 00.0% | Unchanged |
| Metropolitan Life Insurance Co | 2,953 | $10.2K | 0.00% | 00.0% | Unchanged |
| HighMark Wealth Management LLC | 2,250 | $7.81K | 0.01% | −325−12.6% | Reduced |