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 |
|---|---|---|---|---|---|
| Legal & General Group Plc | 5,785 | $26.9K | 0.00% | +639+12.4% | Added |
| Amalgamated Bank | 5,698 | $26.0K | 0.00% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 4,967 | $23.1K | 0.00% | +1,567+46.1% | Added |
| Virtus Fund Advisers, LLC | 4,412 | $20.5K | 0.14% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 4,040 | $18.8K | 0.00% | +4,000+10,000.0% | Added |
| Tower Research Capital LLC (TRC) | 3,420 | $15.9K | 0.00% | +255+8.1% | Added |
| Metropolitan Life Insurance Co | 2,953 | $13.7K | 0.00% | 00.0% | Unchanged |
| HighMark Wealth Management LLC | 2,575 | $12.0K | 0.01% | 00.0% | Unchanged |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 2,490 | $11.6K | 0.00% | −654−20.8% | Reduced |
| Fairfield, Bush & Co. | 2,000 | $9.30K | 0.00% | +2,000 | New |
| Quadrant Capital Group LLC | 1,976 | $9.19K | 0.00% | 00.0% | Unchanged |
| Signaturefd, LLC | 941 | $4.38K | 0.00% | +817+658.9% | Added |
| China Universal Asset Management Co., Ltd. | 792 | $3.68K | 0.00% | +13+1.7% | Added |
| Parallel Advisors, LLC | 529 | $2.46K | 0.00% | +64+13.8% | Added |
| Bogart Wealth, LLC | 500 | $2.33K | 0.00% | 00.0% | Unchanged |
| Daiwa Securities Group Inc. | 158 | $1.00K | 0.00% | 00.0% | Unchanged |
| Washington Trust Advisors, Inc. | 179 | $833 | 0.00% | 00.0% | Unchanged |
| Lindbrook Capital, LLC | 67 | $312 | 0.00% | +67 | New |
| Baker Avenue Asset Management, LP | 45 | $209 | 0.00% | +45 | New |
| Group One Trading, L.P. | 34 | $158 | 0.00% | +34 | New |
| 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 |