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 2023
Institutional positions in Sutro Biopharma, Inc. as of Jun 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
- 120
- +4 vs. Q1 2023
- Shares held
- 54.1M
- +609.6K (+1.1%) vs. Q1 2023
- Total value
- $251.6M
- +$4.08M (+1.7%) vs. Q1 2023
- New holders
- 17
- 45 more added
- Sold out
- 13
- 37 more reduced
Compare with Q1 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 | $358.3M |
| 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 2023
Shares, value and share of portfolio for each institution holding Sutro Biopharma, Inc.; share changes are against Q1 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Eversept Partners, LP | 747,912 | $3.48M | 0.37% | +747,912 | New |
| Frazier Life Sciences Management, L.P. | 780,000 | $3.63M | 0.22% | −996,479−56.1% | Reduced |
| State Street Corp | 1,094,121 | $5.09M | 0.00% | −1,828,591−62.6% | Reduced |
| Goldman Sachs Group Inc | 1,098,874 | $5.11M | 0.00% | −401,739−26.8% | Reduced |
| Parkman Healthcare Partners LLC | 1,143,861 | $5.32M | 0.92% | +43,823+4.0% | Added |
| Geode Capital Management, LLC | 1,161,532 | $5.40M | 0.00% | +105,218+10.0% | Added |
| Dimensional Fund Advisors LP | 1,211,788 | $5.63M | 0.00% | +38,589+3.3% | Added |
| Kynam Capital Management, LP | 1,500,000 | $6.97M | 1.07% | +598,164+66.3% | Added |
| Millennium Management LLC | 1,503,594 | $6.99M | 0.01% | +611,978+68.6% | Added |
| Candriam Luxembourg S.C.A. | 1,628,234 | $7.57M | 0.05% | −232,541−12.5% | Reduced |
| Samsara BioCapital, LLC | 1,675,579 | $7.79M | 1.37% | 00.0% | Unchanged |
| Baillie Gifford & Co | 1,867,654 | $8.68M | 0.01% | 00.0% | Unchanged |
| Verition Fund Management LLC | 1,946,660 | $9.05M | 0.14% | +800,874+69.9% | Added |
| Holocene Advisors, LP | 2,132,873 | $9.92M | 0.04% | 00.0% | Unchanged |
| Vanguard Group Inc | 2,829,908 | $13.2M | 0.00% | +52,946+1.9% | Added |
| Franklin Resources Inc | 2,867,535 | $13.3M | 0.01% | +29,666+1.0% | Added |
| BVF Inc | 3,347,946 | $15.6M | 0.43% | 00.0% | Unchanged |
| Rubric Capital Management LP | 4,048,744 | $18.8M | 0.81% | −311,743−7.1% | Reduced |
| Suvretta Capital Management, LLC | 5,883,693 | $27.4M | 1.47% | +194,607+3.4% | Added |
| BlackRock Inc. | 6,005,557 | $27.9M | 0.00% | +984,734+19.6% | Added |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −217,905−100.0% | Sold out |
| Rafferty Asset Management, LLC | 0 | $0 | 0.00% | −215,729−100.0% | Sold out |
| Norges Bank | 0 | $0 | 0.00% | −124,900−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −100,782−100.0% | Sold out |
| Profund Advisors LLC | 0 | $0 | 0.00% | −40,247−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −39,632−100.0% | Sold out |
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −20,678−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −20,588−100.0% | Sold out |
| HSBC Holdings PLC | 0 | $0 | 0.00% | −19,410−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −18,355−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −12,953−100.0% | Sold out |
| E Fund Management Co., Ltd. | 0 | $0 | 0.00% | −12,245−100.0% | Sold out |
| Values First Advisors, Inc. | 0 | $0 | 0.00% | −3,942−100.0% | Sold out |