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 | $358.3M |
| 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, 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 |
|---|---|---|---|---|---|
| Holocene Advisors, LP | 2,132,873 | $7.40M | 0.03% | 00.0% | Unchanged |
| Verition Fund Management LLC | 2,501,676 | $8.68M | 0.12% | +555,016+28.5% | Added |
| Franklin Resources Inc | 2,834,361 | $9.84M | 0.00% | −33,174−1.2% | Reduced |
| Vanguard Group Inc | 2,868,762 | $9.95M | 0.00% | +38,854+1.4% | Added |
| Adage Capital Partners GP, L.L.C. | 3,105,132 | $10.8M | 0.02% | +2,879,412+1,275.7% | Added |
| Rubric Capital Management LP | 3,344,810 | $11.6M | 0.49% | −703,934−17.4% | Reduced |
| BVF Inc | 3,347,946 | $11.6M | 0.31% | 00.0% | Unchanged |
| Suvretta Capital Management, LLC | 5,883,693 | $20.4M | 1.10% | 00.0% | Unchanged |
| BlackRock Inc. | 5,986,600 | $20.8M | 0.00% | −18,957−0.3% | Reduced |
| Opaleye Management Inc. | 0 | $0 | 0.00% | −307,000−100.0% | Sold out |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −214,021−100.0% | Sold out |
| Two Sigma Investments, LP | 0 | $0 | 0.00% | −135,816−100.0% | Sold out |
| D. E. Shaw & Co., Inc. | 0 | $0 | 0.00% | −40,723−100.0% | Sold out |
| Soleus Capital Management, L.P. | 0 | $0 | 0.00% | −25,887−100.0% | Sold out |
| Caxton Associates LP | 0 | $0 | 0.00% | −21,351−100.0% | Sold out |
| Cubist Systematic Strategies, LLC | 0 | $0 | 0.00% | −16,517−100.0% | Sold out |
| Point72 Middle East FZE | 0 | $0 | 0.00% | −15,069−100.0% | Sold out |
| Y-Intercept (Hong Kong) Ltd | 0 | $0 | 0.00% | −14,190−100.0% | Sold out |
| Algert Global LLC | 0 | $0 | 0.00% | −12,250−100.0% | Sold out |
| Ergoteles LLC | 0 | $0 | 0.00% | −11,690−100.0% | Sold out |
| Fairfield, Bush & Co. | 0 | $0 | 0.00% | −2,000−100.0% | Sold out |
| Quadrant Capital Group LLC | 0 | $0 | 0.00% | −1,976−100.0% | Sold out |
| Signaturefd, LLC | 0 | $0 | 0.00% | −941−100.0% | Sold out |
| Lindbrook Capital, LLC | 0 | $0 | 0.00% | −67−100.0% | Sold out |
| Baker Avenue Asset Management, LP | 0 | $0 | 0.00% | −45−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −34−100.0% | Sold out |
| Tekla Capital Management LLC | – | – | – | – | Not filed |