Sutro Biopharma Ownership | Who Owns Sutro Biopharma?
Sutro Biopharma Ownership Summary
Sutro Biopharma is owned by 157.87% institutional investors, 2.30% insiders. Bvf inc/il is the largest institutional shareholder, holding 14.58% of STRO shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 3.22% of its assets in Sutro Biopharma shares.
STRO Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Sutro Biopharma | 157.87% | 2.30% | -60.17% |
| Sector | Healthcare Stocks | 35.74% | 11.83% | 52.43% |
| Industry | Biotech Stocks | 36.05% | 11.82% | 52.13% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Bvf inc/il | 1.25M | 14.58% | $31.18M |
| Affinity asset advisors | 1.07M | 12.46% | $26.64M |
| Samsara biocapital | 1.06M | 12.38% | $26.48M |
| Blackrock | 6.91M | 11.24% | $20.25M |
| Kynam capital management, lp | 872.56K | 10.16% | $21.74M |
| Orbimed advisors | 801.14K | 9.33% | $19.96M |
| Eventide asset management | 715.31K | 8.33% | $17.82M |
| Perceptive advisors | 715.31K | 8.33% | $17.82M |
| Ra capital management | 715.31K | 8.33% | $17.82M |
| Point72 asset management | 692.11K | 8.06% | $17.24M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Velan capital investment management lp | 512.16K | 7.99% | $12.76M |
| Acuta capital partners | 269.43K | 4.73% | $6.71M |
| Samsara biocapital | 1.06M | 2.57% | $26.48M |
| Affinity asset advisors | 1.07M | 1.38% | $26.64M |
| Kynam capital management, lp | 872.56K | 1.34% | $21.74M |
| Merck | 2.72M | 1.04% | $2.37M |
| Bvf inc/il | 1.25M | 0.99% | $31.18M |
| Aju ib investment | 17.50K | 0.89% | $202.47K |
| Opaleye management | 190.67K | 0.63% | $4.75M |
| Orbimed advisors | 801.14K | 0.40% | $19.96M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Bvf inc/il | 1.25M | 0.99% | 1.25M |
| Blackrock | 6.91M | 0.00% | 1.21M |
| Samsara biocapital | 1.06M | 2.57% | 858.37K |
| Orbimed advisors | 801.14K | 0.40% | 801.14K |
| Perceptive advisors | 715.31K | 0.35% | 715.31K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Vanguard group | - | - | -3.68M |
| 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 |
|---|---|---|---|---|
| Bvf inc/il | 1.25M | 0.99% | 1.25M | $31.18M |
| Orbimed advisors | 801.14K | 0.40% | 801.14K | $19.96M |
| Ra capital management | 715.31K | 0.19% | 715.31K | $17.82M |
| Perceptive advisors | 715.31K | 0.35% | 715.31K | $17.82M |
| Eventide asset management | 715.31K | 0.29% | 715.31K | $17.82M |
Sold Out
| Holder | Change |
|---|---|
| Group one trading | -2.00 |
| Sbi securities | -2.00 |
| Farther finance advisors | -9.00 |
| Nelson, van denburg & campbell wealth management group | -13.00 |
| Allspring global investments | -15.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Mar 31, 2026 | 70 | 16.67% | 13,552,034 | 142.07% | 157 | 3.63% | 45 | -25.00% | 13 | - |
| Dec 31, 2025 | 3 | -96.51% | 17,606 | -99.97% | - | 0.01% | 1 | -96.55% | 2 | -93.94% |
| Sep 30, 2025 | 26 | -74.26% | 4,544,952 | -91.82% | 5 | 0.12% | 6 | -88.68% | 12 | -50.00% |
| 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% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Vanguard Total Stock Mkt Idx Inv | 533.12K | 3.22% | - |
| Vanguard US Total Market Shares ETF | 2.42M | 2.88% | - |
| Baillie Gifford Global Discovery A Acc | 904.60K | 1.10% | -13.25K |
| Vanguard Institutional Extnd Mkt Idx Tr | 170.14K | 1.03% | 972.00 |
| Fidelity Small Cap Index | 835.21K | 0.99% | -23.86K |
| 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 |
|---|---|---|
| 2026 Q2 | - | - |
| 2026 Q1 | - | - |
| 2025 Q4 | 5 | - |
| 2025 Q3 | - | - |
| 2025 Q2 | - | - |
STRO Ownership FAQ
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