Sutro Biopharma Ownership | Who Owns Sutro Biopharma?
Sutro Biopharma Ownership Summary
Sutro Biopharma is owned by 65.70% institutional investors, 4.56% insiders, and 29.74% retail investors. Blackrock is the largest institutional shareholder, holding 11.24% of STRO shares. Vanguard US Total Market Shares ETF is the top mutual fund, with 2.88% of its assets in Sutro Biopharma shares.
STRO Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Sutro Biopharma | 65.70% | 4.56% | 29.74% |
| Sector | Healthcare Stocks | 487.91% | 11.08% | -398.99% |
| Industry | Biotech Stocks | 307.10% | 11.11% | -218.21% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Blackrock | 6.91M | 11.24% | $20.25M |
| Suvretta capital management | 6.49M | 7.67% | $4.63M |
| Kynam capital management, lp | 5.09M | 6.02% | $3.63M |
| Vanguard group | 4.21M | 5.13% | $7.74M |
| Acadian asset management | 3.04M | 3.60% | $2.17M |
| Merck | 2.72M | 3.22% | $1.94M |
| Vestal point capital, lp | 2.60M | 3.07% | $1.86M |
| Tang capital management | 2.56M | 3.03% | $1.83M |
| Eversept partners, lp | 2.29M | 2.71% | $1.64M |
| Samsara biocapital | 2.20M | 2.60% | $1.57M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Merck | 2.72M | 0.90% | $1.94M |
| Velan capital investment management lp | 1.03M | 0.69% | $670.12K |
| Kynam capital management, lp | 5.09M | 0.39% | $3.63M |
| Samsara biocapital | 2.20M | 0.32% | $1.57M |
| Eversept partners, lp | 2.29M | 0.15% | $1.64M |
| Suvretta capital management | 6.49M | 0.14% | $4.63M |
| Aju ib investment | 175.00K | 0.14% | $124.93K |
| Vestal point capital, lp | 2.60M | 0.10% | $1.86M |
| Tang capital management | 2.56M | 0.09% | $1.83M |
| Dafna capital management | 437.08K | 0.09% | $312.03K |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Tang capital management | 2.56M | 0.09% | 2.36M |
| Blackrock | 6.91M | 0.00% | 1.21M |
| Velan capital investment management lp | 1.03M | 0.69% | 1.00M |
| Cantor fitzgerald, l. p. | 500.00K | 0.01% | 500.00K |
| Prudential financial | 547.51K | 0.00% | 426.10K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Ra capital management | - | - | -4.43M |
| Blackrock funding, inc. /de | 2.11M | - | -4.10M |
| Point72 asset management | - | - | -2.20M |
| Bioimpact capital | - | - | -2.16M |
| Parkman healthcare partners | - | - | -1.73M |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Cantor fitzgerald, l. p. | 500.00K | 0.01% | 500.00K | $356.95K |
| Marshall wace, llp | 234.43K | 0.00% | 234.43K | $166.45K |
| Lpl financial | 230.15K | 0.00% | 230.15K | $674.34K |
| Rbf capital | 160.00K | 0.01% | 160.00K | $114.22K |
| Qube research | 115.40K | 0.00% | 115.40K | $82.39K |
Sold Out
| Holder | Change |
|---|---|
| Farther finance advisors | -9.00 |
| Nelson, van denburg & campbell wealth management group | -13.00 |
| Allspring global investments | -15.00 |
| Ifp advisors | -30.00 |
| Allworth financial lp | -50.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Jun 30, 2025 | 100 | -14.53% | 55,566,817 | -9.91% | 65 | 1.19% | 52 | -10.34% | 24 | -27.27% |
| Mar 31, 2025 | 9 | -92.74% | 19,888,115 | -68.79% | 23 | 0.40% | 7 | -89.06% | - | -100.00% |
| Dec 31, 2024 | 121 | -9.70% | 63,450,822 | 1.49% | 77 | 1.33% | 62 | -15.07% | 35 | 9.38% |
| Sep 30, 2024 | 133 | 9.02% | 62,516,015 | -1.03% | 76 | 1.26% | 73 | -7.59% | 31 | 10.71% |
| Jun 30, 2024 | 122 | 3.39% | 63,167,394 | 18.26% | 77 | 1.03% | 79 | 16.18% | 28 | -12.50% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Vanguard US Total Market Shares ETF | 2.42M | 2.88% | - |
| Vanguard Total Stock Mkt Idx Inv | 2.36M | 2.79% | -51.67K |
| Baillie Gifford Global Discovery A Acc | 904.60K | 1.10% | -13.25K |
| Fidelity Small Cap Index | 835.21K | 0.99% | -23.86K |
| Vanguard Institutional Extnd Mkt Idx Tr | 815.39K | 0.96% | -371.55K |
| iShares Russell 2000 Value ETF | 728.08K | 0.86% | - |
| Edinburgh Worldwide Ord | 555.93K | 0.67% | -194.80K |
| State St Russell Sm/Mid Cp® Indx NL Cl C | 502.75K | 0.60% | - |
| State St Russell Sm/Mid Cp® Indx SL Cl I | 502.75K | 0.60% | - |
| Goldman Sachs Small Cp Val Insghts Instl | 467.61K | 0.55% | - |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Oct 15, 2025 | Gerber Hans-Peter | CHIEF SCIENTIFIC OFFICER | Buy | $13.61K |
| Oct 15, 2025 | Chow Gregory K. | CFO | Buy | $16.00K |
| Oct 15, 2025 | Chung Jane | Chief Executive Officer | Buy | $10.01K |
| Oct 15, 2025 | MATSUI CONNIE | - | Buy | $39.95K |
| Oct 15, 2025 | Pauling David | Chief Admin. Ofcr. & GC | Buy | $9.99K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2025 Q4 | 5 | - |
| 2025 Q3 | - | - |
| 2025 Q2 | - | - |
| 2025 Q1 | - | - |
| 2024 Q4 | - | - |
STRO Ownership FAQ
Try Tickergate Pro Free
Customize Everything. 100% Flexibility. Fast and Easy to Use (No code or Excel Needed)
Customize your own personal stocks lists, views and charts
Choose from hundreds of fields, up to 15 years of history
Conduct deep comparison analysis
Discover trending investment themes
Find your next best investment
Research stocks using tools