Sutro Biopharma Ownership | Who Owns Sutro Biopharma?
Sutro Biopharma Ownership Summary
Sutro Biopharma is owned by 23.93% institutional investors, 4.55% insiders, and 71.52% 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 | 23.93% | 4.55% | 71.52% |
| Sector | Healthcare Stocks | 279.19% | 10.62% | -189.81% |
| Industry | Biotech Stocks | 63.96% | 10.74% | 25.30% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Blackrock | 6.91M | 11.24% | $20.25M |
| Blackrock funding, inc. /de | 7.59M | 9.26% | $13.97M |
| Suvretta capital management | 7.46M | 9.10% | $13.73M |
| Kynam capital management, lp | 5.44M | 6.55% | $3.54M |
| Ra capital management | 4.43M | 5.34% | $2.89M |
| Vanguard group | 4.21M | 5.13% | $7.74M |
| Merck | 2.72M | 3.32% | $5.01M |
| Vestal point capital, lp | 2.60M | 3.13% | $1.69M |
| Eversept partners, lp | 2.29M | 2.76% | $1.49M |
| Samsara biocapital | 2.20M | 2.64% | $1.43M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Merck | 2.72M | 1.94% | $5.01M |
| Velan capital investment management lp | 1.03M | 0.69% | $670.12K |
| Suvretta capital management | 7.46M | 0.47% | $13.73M |
| Kynam capital management, lp | 5.44M | 0.30% | $3.54M |
| Samsara biocapital | 2.20M | 0.25% | $1.43M |
| Eversept partners, lp | 2.29M | 0.15% | $1.49M |
| Vestal point capital, lp | 2.60M | 0.12% | $1.69M |
| Dafna capital management | 437.08K | 0.08% | $284.36K |
| Shay capital | 203.60K | 0.06% | $374.63K |
| Ra capital management | 4.43M | 0.05% | $2.89M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Ra capital management | 4.43M | 0.05% | 4.43M |
| Merck | 2.72M | 1.94% | 2.72M |
| Kynam capital management, lp | 5.44M | 0.30% | 1.80M |
| Eversept partners, lp | 2.29M | 0.15% | 1.60M |
| Blackrock | 6.91M | 0.00% | 1.21M |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Point72 asset management | - | - | -2.20M |
| Bioimpact capital | - | - | -2.16M |
| Parkman healthcare partners | - | - | -1.73M |
| Bank of montreal /can/ | - | - | -814.96K |
| Arrowstreet capital, limited partnership | - | - | -737.67K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Ra capital management | 4.43M | 0.05% | 4.43M | $2.89M |
| Merck | 2.72M | 1.94% | 2.72M | $5.01M |
| Affinity asset advisors | 752.72K | 0.05% | 752.72K | $489.72K |
| Lpl financial | 230.15K | 0.00% | 230.15K | $674.34K |
| Shay capital | 203.60K | 0.06% | 203.60K | $374.63K |
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 % |
|---|---|---|---|---|---|---|---|---|---|---|
| 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% |
| Mar 31, 2024 | 118 | 3.51% | 53,412,278 | -3.97% | 86 | 1.05% | 68 | 11.48% | 32 | 10.34% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Vanguard US Total Market Shares ETF | 2.42M | 2.88% | - |
| Vanguard Total Stock Mkt Idx Inv | 2.42M | 2.86% | - |
| iShares Russell 2000 ETF | 2.06M | 2.44% | 1.01K |
| Vanguard Institutional Extnd Mkt Idx Tr | 1.19M | 1.41% | - |
| Baillie Gifford Global Discovery A Acc | 904.60K | 1.10% | -13.25K |
| Fidelity Small Cap Index | 824.16K | 0.98% | - |
| iShares Russell 2000 Value ETF | 729.61K | 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% | - |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Jan 29, 2024 | Vasquez Nicki | CHIEF PORT. STRAT & ALNCE OFCR | Sell | $60.92K |
| Aug 28, 2023 | Shtylla Brunilda | Chief Business Officer | Sell | $72.59K |
| Aug 25, 2023 | Shtylla Brunilda | Chief Business Officer | Sell | $53.28K |
| Mar 14, 2022 | NEWELL WILLIAM J | CEO | Buy | $77.51K |
| Sep 28, 2021 | Vasquez Nicki | Chief Port. Strat & Alnce Ofcr | Sell | $72.72K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2025 Q2 | - | - |
| 2025 Q1 | - | - |
| 2024 Q4 | - | - |
| 2024 Q3 | - | - |
| 2024 Q2 | - | - |
STRO Ownership FAQ
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