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, Q1 2024
Institutional positions in Sutro Biopharma, Inc. as of Mar 31, 2024. 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
- 117
- +3 vs. Q4 2023
- Shares held
- 53.4M
- −2.24M (−4.0%) vs. Q4 2023
- Total value
- $301.7M
- +$63.0M (+26.4%) vs. Q4 2023
- New holders
- 20
- 49 more added
- Sold out
- 17
- 32 more reduced
Compare with Q4 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, Q1 2024
Shares, value and share of portfolio for each institution holding Sutro Biopharma, Inc.; share changes are against Q4 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| California State Teachers Retirement System | 6,124 | $34.6K | 0.00% | −3,776−38.1% | Reduced |
| Ameritas Investment Partners, Inc. | 4,967 | $28.1K | 0.00% | 00.0% | Unchanged |
| Legal & General Group Plc | 4,960 | $28.0K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 4,624 | $26.1K | 0.00% | −4,772−50.8% | Reduced |
| HighMark Wealth Management LLC | 2,250 | $12.7K | 0.01% | 00.0% | Unchanged |
| Quantbot Technologies LP | 2,100 | $11.9K | 0.00% | −1,212−36.6% | Reduced |
| Amalgamated Bank | 1,964 | $11.0K | 0.00% | −3,150−61.6% | Reduced |
| Metropolitan Life Insurance Co | 1,632 | $9.22K | 0.00% | +546+50.3% | Added |
| Royal Bank of Canada | 1,421 | $8.00K | 0.00% | −17,408−92.5% | Reduced |
| Simplex Trading, LLC | 1,064 | $6.00K | 0.00% | +877+469.0% | Added |
| Bogart Wealth, LLC | 500 | $2.83K | 0.00% | 00.0% | Unchanged |
| AdvisorNet Financial, Inc | 500 | $2.83K | 0.00% | +500 | New |
| Parallel Advisors, LLC | 465 | $2.63K | 0.00% | 00.0% | Unchanged |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 285 | $1.61K | 0.00% | 00.0% | Unchanged |
| Comerica Bank | 49 | $277 | 0.00% | −138−73.8% | Reduced |
| Nelson, Van Denburg & Campbell Wealth Management Group, LLC | 13 | $73 | 0.00% | +13 | New |
| CWM, LLC | 47 | $0 | 0.00% | +47 | New |
| BVF Inc | 0 | $0 | 0.00% | −3,347,946−100.0% | Sold out |
| Rubric Capital Management LP | 0 | $0 | 0.00% | −3,344,810−100.0% | Sold out |
| Franklin Resources Inc | 0 | $0 | 0.00% | −2,762,636−100.0% | Sold out |
| Sectoral Asset Management Inc | 0 | $0 | 0.00% | −623,684−100.0% | Sold out |
| Pentwater Capital Management LP | 0 | $0 | 0.00% | −450,000−100.0% | Sold out |
| Opaleye Management Inc. | 0 | $0 | 0.00% | −301,491−100.0% | Sold out |
| Exome Asset Management LLC | 0 | $0 | 0.00% | −153,600−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −73,271−100.0% | Sold out |
| Aristides Capital LLC | 0 | $0 | 0.00% | −50,476−100.0% | Sold out |
| State of Wisconsin Investment Board | 0 | $0 | 0.00% | −30,400−100.0% | Sold out |
| Susquehanna Portfolio Strategies, LLC | 0 | $0 | 0.00% | −26,668−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −13,903−100.0% | Sold out |
| Virtus Fund Advisers, LLC | 0 | $0 | 0.00% | −4,412−100.0% | Sold out |
| Point72 Middle East FZE | 0 | $0 | 0.00% | −1,798−100.0% | Sold out |
| Cape Investment Advisory, Inc. | 0 | $0 | 0.00% | −1,000−100.0% | Sold out |
| Federated Hermes, Inc. | 0 | $0 | 0.00% | −223−100.0% | Sold out |
| Washington Trust Advisors, Inc. | 0 | $0 | 0.00% | −179−100.0% | Sold out |