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, Q4 2023
Institutional positions in Sutro Biopharma, Inc. as of Dec 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
- 114
- +5 vs. Q3 2023
- Shares held
- 55.6M
- −246.4K (−0.4%) vs. Q3 2023
- Total value
- $238.7M
- +$44.4M (+22.9%) vs. Q3 2023
- New holders
- 20
- 43 more added
- Sold out
- 15
- 29 more reduced
Compare with Q3 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, Q4 2023
Shares, value and share of portfolio for each institution holding Sutro Biopharma, Inc.; share changes are against Q3 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| State Street Corp | 1,161,465 | $4.98M | 0.00% | +55,680+5.0% | Added |
| Parkman Healthcare Partners LLC | 1,202,431 | $5.16M | 0.73% | +20,263+1.7% | Added |
| Geode Capital Management, LLC | 1,259,237 | $5.40M | 0.00% | +62,085+5.2% | Added |
| Millennium Management LLC | 1,535,869 | $6.59M | 0.01% | +296,618+23.9% | Added |
| Samsara BioCapital, LLC | 1,675,579 | $7.19M | 1.12% | 00.0% | Unchanged |
| Baillie Gifford & Co | 1,866,850 | $8.01M | 0.01% | −8040.0% | Reduced |
| Kynam Capital Management, LP | 2,001,727 | $8.59M | 0.97% | +449,052+28.9% | Added |
| Franklin Resources Inc | 2,762,636 | $11.9M | 0.01% | −71,725−2.5% | Reduced |
| Vanguard Group Inc | 2,890,000 | $12.4M | 0.00% | +21,238+0.7% | Added |
| Rubric Capital Management LP | 3,344,810 | $14.3M | 0.54% | 00.0% | Unchanged |
| BVF Inc | 3,347,946 | $14.4M | 0.36% | 00.0% | Unchanged |
| Adage Capital Partners GP, L.L.C. | 4,467,796 | $19.2M | 0.04% | +1,362,664+43.9% | Added |
| Suvretta Capital Management, LLC | 5,778,188 | $24.8M | 1.13% | −105,505−1.8% | Reduced |
| BlackRock Inc. | 5,823,922 | $25.0M | 0.00% | −162,678−2.7% | Reduced |
| Holocene Advisors, LP | 0 | $0 | 0.00% | −2,132,873−100.0% | Sold out |
| Frazier Life Sciences Management, L.P. | 0 | $0 | 0.00% | −780,000−100.0% | Sold out |
| Susquehanna Fundamental Investments, LLC | 0 | $0 | 0.00% | −71,113−100.0% | Sold out |
| Putnam Investments LLC | 0 | $0 | 0.00% | −68,393−100.0% | Sold out |
| Los Angeles Capital Management LLC | 0 | $0 | 0.00% | −68,324−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −67,754−100.0% | Sold out |
| Mirae Asset Global Investments Co., Ltd. | 0 | $0 | 0.00% | −45,441−100.0% | Sold out |
| Virtus Investment Advisers, Inc. | 0 | $0 | 0.00% | −28,274−100.0% | Sold out |
| Trexquant Investment LP | 0 | $0 | 0.00% | −20,421−100.0% | Sold out |
| Allspring Global Investments Holdings, LLC | 0 | $0 | 0.00% | −17,319−100.0% | Sold out |
| ProShare Advisors LLC | 0 | $0 | 0.00% | −11,770−100.0% | Sold out |
| Manchester Capital Management LLC | 0 | $0 | 0.00% | −10,561−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −4,953−100.0% | Sold out |
| China Universal Asset Management Co., Ltd. | 0 | $0 | 0.00% | −1,546−100.0% | Sold out |
| Daiwa Securities Group Inc. | 0 | $0 | 0.00% | −158−100.0% | Sold out |