SUTRO BIOPHARMA, INC. - STRO
Detailed investor-level table based on 13F positions.
Early Q1 2026 data: only 3 institutional holders reported so far. The full shareholder list will grow as more funds file with the SEC.
Methodology:
Market value and % of portfolio use SEC reported VALUE ($000).
For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received.
Details.
Rows: 0
| Investor | History | Status | Shares held | Market value ($000) | % of portfolio | Previous % | Rank | Change in shares | % change in shares | Source | Date reported |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Affinity Asset Advisors, LLC | History | Reduced | 748,382 | 8,658 | 0.49% | 0.06% | 1 | -4,340 | -0.58% | Q4 2025 | Feb 13, 2026 |
| Kynam Capital Management, LP | History | Reduced | 479,590 | 5,548 | 0.35% | 0.33% | 2 | -4,608,509 | -90.57% | Q4 2025 | Feb 17, 2026 |
| MILLENNIUM MANAGEMENT LLC | History | Reduced | 418,196 | 4,838 | 0.0% | 0.0% | 3 | -4,106,154 | -90.76% | Q4 2025 | Feb 17, 2026 |
| VANGUARD GROUP INC | History | Reduced | 375,786 | 4,347 | 0.0% | 0.0% | 4 | -3,307,200 | -89.8% | Q4 2025 | Jan 29, 2026 |
| ACADIAN ASSET MANAGEMENT LLC | History | Reduced | 337,953 | 3,908 | 0.01% | 0.01% | 5 | -3,051,369 | -90.03% | Q4 2025 | Feb 10, 2026 |
| Velan Capital Investment Management LP | History | Reduced | 312,000 | 3,609 | 2.09% | 2.54% | 6 | -2,808,000 | -90.0% | Q4 2025 | Feb 13, 2026 |
| Merck & Co., Inc. | History | Reduced | 272,351 | 3,151 | 1.14% | 1.04% | 7 | -2,451,158 | -90.0% | Q4 2025 | Feb 17, 2026 |
| Vestal Point Capital, LP | History | Reduced | 243,000 | 2,811 | 0.1% | 0.1% | 8 | -2,357,000 | -90.65% | Q4 2025 | Feb 17, 2026 |
| BALYASNY ASSET MANAGEMENT L.P. | History | New | 230,049 | 2,661 | 0.0% | — | 9 | +230,049 | New | Q4 2025 | Feb 17, 2026 |
| Samsara BioCapital, LLC | History | Reduced | 204,503 | 2,366 | 0.24% | 0.25% | 10 | -1,992,311 | -90.69% | Q4 2025 | Feb 17, 2026 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | History | Reduced | 200,000 | 2,314 | 0.0% | 0.0% | 11 | -1,800,000 | -90.0% | Q4 2025 | Feb 17, 2026 |
| Eversept Partners, LP | History | Reduced | 193,571 | 2,239 | 0.11% | 0.14% | 12 | -2,097,742 | -91.55% | Q4 2025 | Feb 17, 2026 |
| Opaleye Management Inc. | History | New | 190,671 | 2,206 | 0.29% | — | 13 | +190,671 | New | Q4 2025 | Apr 13, 2026 |
| Point72 Asset Management, L.P. | History | New | 179,088 | 2,072 | 0.0% | — | 14 | +179,088 | New | Q4 2025 | Feb 17, 2026 |
| TANG CAPITAL MANAGEMENT LLC | History | Reduced | 139,617 | 1,615 | 0.08% | 0.09% | 15 | -2,689,100 | -95.06% | Q4 2025 | Feb 17, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | History | Reduced | 122,865 | 1,421 | 0.0% | 0.0% | 16 | -1,301,932 | -91.38% | Q4 2025 | Feb 12, 2026 |
| BlackRock, Inc. | History | Reduced | 117,437 | 1,358 | 0.0% | 0.0% | 17 | -1,570,443 | -93.04% | Q4 2025 | Feb 12, 2026 |
| GSA CAPITAL PARTNERS LLP | History | Reduced | 89,067 | 1,031 | 0.09% | 0.01% | 18 | -85,776 | -49.06% | Q4 2025 | Feb 06, 2026 |
| MARSHALL WACE, LLP | History | Reduced | 85,615 | 990 | 0.0% | 0.0% | 19 | -32,828 | -27.72% | Q4 2025 | Feb 13, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | History | Reduced | 83,979 | 971 | 0.0% | 0.0% | 20 | -736,969 | -89.77% | Q4 2025 | Feb 09, 2026 |
| Spruce Street Capital LP | History | New | 75,594 | 874 | 0.29% | — | 21 | +75,594 | New | Q4 2025 | Feb 13, 2026 |
| ACUTA CAPITAL PARTNERS, LLC | History | New | 67,451 | 780 | 0.53% | — | 22 | +67,451 | New | Q4 2025 | Feb 17, 2026 |
| ADAR1 Capital Management, LLC | History | New | 67,077 | 776 | 0.06% | — | 23 | +67,077 | New | Q4 2025 | Feb 18, 2026 |
| TWO SIGMA INVESTMENTS, LP | History | Reduced | 46,492 | 537 | 0.0% | 0.0% | 24 | -350,293 | -88.28% | Q4 2025 | Feb 17, 2026 |
| Fisher Asset Management, LLC | History | Reduced | 35,305 | 408 | 0.0% | 0.0% | 25 | -317,644 | -90.0% | Q4 2025 | Feb 09, 2026 |
| STATE STREET CORP | History | Reduced | 34,266 | 396 | 0.0% | 0.0% | 26 | -308,386 | -90.0% | Q4 2025 | Feb 13, 2026 |
| CITADEL ADVISORS LLC | History | New | 32,085 | 371 | 0.0% | — | 27 | +32,085 | New | Q4 2025 | Feb 17, 2026 |
| Shay Capital LLC | History | Reduced | 24,255 | 280 | 0.03% | 0.02% | 28 | -287,796 | -92.23% | Q4 2025 | Feb 17, 2026 |
| JANE STREET GROUP, LLC | History | New | 22,945 | 265 | 0.0% | — | 29 | +22,945 | New | Q4 2025 | Feb 12, 2026 |
| AQR CAPITAL MANAGEMENT LLC | History | Reduced | 18,034 | 208 | 0.0% | 0.0% | 30 | -336,415 | -94.91% | Q4 2025 | Feb 17, 2026 |
| TWO SIGMA ADVISERS, LP | History | Reduced | 17,580 | 203 | 0.0% | 0.0% | 31 | -221,820 | -92.66% | Q4 2025 | Feb 17, 2026 |
| AJU IB Investment Co., Ltd. | History | Reduced | 17,500 | 202 | 0.89% | 0.13% | 32 | -157,500 | -90.0% | Q4 2025 | Feb 10, 2026 |
| Invesco Ltd. | History | Reduced | 16,970 | 196 | 0.0% | 0.0% | 33 | -117,949 | -87.42% | Q4 2025 | Feb 19, 2026 |
| MORGAN STANLEY | History | Reduced | 15,922 | 184 | 0.0% | 0.0% | 34 | -225,963 | -93.42% | Q4 2025 | Feb 13, 2026 |
| GOLDMAN SACHS GROUP INC | History | Reduced | 15,669 | 181 | 0.0% | 0.0% | 35 | -72,442 | -82.22% | Q4 2025 | Mar 25, 2026 |
| RBF Capital, LLC | History | Reduced | 15,272 | 176 | 0.01% | 0.01% | 36 | -137,442 | -90.0% | Q4 2025 | Feb 17, 2026 |
| NORTHERN TRUST CORP | History | Reduced | 14,379 | 166 | 0.0% | 0.0% | 37 | -107,736 | -88.23% | Q4 2025 | Feb 17, 2026 |
| OMERS ADMINISTRATION Corp | History | Reduced | 11,023 | 127 | 0.0% | 0.0% | 38 | -84,127 | -88.42% | Q4 2025 | Feb 13, 2026 |
| State of Tennessee, Department of Treasury | History | New | 7,400 | 110 | 0.0% | — | 39 | +7,400 | New | Q4 2025 | Feb 18, 2026 |
| UBS Group AG | History | Reduced | 7,870 | 91 | 0.0% | 0.0% | 40 | -1,837,969 | -99.57% | Q4 2025 | Jan 29, 2026 |
| BANK OF AMERICA CORP /DE/ | History | Reduced | 4,212 | 48 | 0.0% | 0.0% | 41 | -115,222 | -96.47% | Q4 2025 | Feb 17, 2026 |
| CWM, LLC | History | Reduced | 1,499 | 17 | 0.0% | 0.0% | 42 | -23,737 | -94.06% | Q4 2025 | Jan 26, 2026 |
| OSAIC HOLDINGS, INC. | History | Reduced | 1,338 | 15 | 0.0% | 0.0% | 43 | -19,811 | -93.67% | Q4 2025 | Feb 17, 2026 |
| CITIGROUP INC | History | Reduced | 1,043 | 12 | 0.0% | 0.0% | 45 | -74,334 | -98.62% | Q4 2025 | Feb 13, 2026 |
| FMR LLC | History | Reduced | 1,108 | 12 | 0.0% | 0.0% | 44 | -10,756 | -90.66% | Q4 2025 | Feb 17, 2026 |
| FNY Investment Advisers, LLC | History | Reduced | 1,000 | 11 | 0.0% | 0.0% | 46 | -9,000 | -90.0% | Q4 2025 | Jan 16, 2026 |
| JPMORGAN CHASE & CO | History | Reduced | 741 | 8 | 0.0% | 0.0% | 47 | -75,417 | -99.03% | Q4 2025 | Feb 11, 2026 |
| Physician Wealth Advisors, Inc. | History | Reduced | 182 | 2 | 0.0% | 0.0% | 48 | -1,122 | -86.04% | Q4 2025 | Jan 29, 2026 |
| BNP PARIBAS FINANCIAL MARKETS | History | Reduced | 111 | 1 | 0.0% | 0.0% | 50 | -1,630 | -93.62% | Q4 2025 | Feb 10, 2026 |
| WELLS FARGO & COMPANY/MN | History | New | 100 | 1 | 0.0% | — | 49 | +100 | New | Q4 2025 | Feb 13, 2026 |
| SUVRETTA CAPITAL MANAGEMENT, LLC | History | Closed out | 0 | 0 | — | 0.14% | — | -6,488,324 | -100.0% | Q3 2025 | Nov 14, 2025 |
| DAFNA Capital Management LLC | History | Closed out | 0 | 0 | — | 0.09% | — | -437,079 | -100.0% | Q3 2025 | Nov 14, 2025 |
| DIMENSIONAL FUND ADVISORS LP | History | Closed out | 0 | 0 | — | 0.0% | — | -197,516 | -100.0% | Q3 2025 | Nov 12, 2025 |
| LPL Financial LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -142,883 | -100.0% | Q3 2025 | Nov 12, 2025 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | History | Closed out | 0 | 0 | — | 0.0% | — | -103,592 | -100.0% | Q3 2025 | Nov 14, 2025 |
| Aberdeen Group plc | History | Closed out | 0 | 0 | — | 0.0% | — | -69,389 | -100.0% | Q3 2025 | Nov 07, 2025 |
| Cerity Partners LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -68,061 | -100.0% | Q3 2025 | Oct 22, 2025 |
| Qube Research & Technologies Ltd | History | Closed out | 0 | 0 | — | 0.0% | — | -65,226 | -100.0% | Q3 2025 | Nov 14, 2025 |
| Catalyst Funds Management Pty Ltd | History | Closed out | 0 | 0 | — | 0.01% | — | -63,776 | -100.0% | Q3 2025 | Nov 12, 2025 |
| Vanguard Personalized Indexing Management, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -60,184 | -100.0% | Q3 2025 | Oct 31, 2025 |
| IEQ CAPITAL, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -59,752 | -100.0% | Q3 2025 | Nov 14, 2025 |
| Vontobel Holding Ltd. | History | Closed out | 0 | 0 | — | 0.0% | — | -50,000 | -100.0% | Q3 2025 | Oct 15, 2025 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -42,900 | -100.0% | Q3 2025 | Nov 14, 2025 |
| PRUDENTIAL FINANCIAL INC | History | Closed out | 0 | 0 | — | 0.0% | — | -35,500 | -100.0% | Q3 2025 | Nov 13, 2025 |
| Tower Research Capital LLC (TRC) | History | Closed out | 0 | 0 | — | 0.0% | — | -24,017 | -100.0% | Q3 2025 | Nov 14, 2025 |
| XTX Topco Ltd | History | Closed out | 0 | 0 | — | 0.0% | — | -19,131 | -100.0% | Q3 2025 | Nov 14, 2025 |
| China Universal Asset Management Co., Ltd. | History | Closed out | 0 | 0 | — | 0.0% | — | -14,860 | -100.0% | Q3 2025 | Nov 10, 2025 |
| Ground Swell Capital, LLC | History | Closed out | 0 | 0 | — | 0.03% | — | -14,345 | -100.0% | Q3 2025 | Nov 06, 2025 |
| Quantinno Capital Management LP | History | Closed out | 0 | 0 | — | 0.0% | — | -11,139 | -100.0% | Q3 2025 | Nov 14, 2025 |
| Revolve Wealth Partners, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -11,002 | -100.0% | Q3 2025 | Oct 14, 2025 |
| Arax Advisory Partners | History | Reduced | 3 | 0 | — | 0.0% | — | -3,840 | -99.92% | Q4 2025 | Feb 13, 2026 |
| Mirae Asset Global Investments Co., Ltd. | History | Closed out | 0 | 0 | — | 0.0% | — | -3,277 | -100.0% | Q3 2025 | Nov 03, 2025 |
| BARCLAYS PLC | History | Closed out | 0 | 0 | — | 0.0% | — | -2,767 | -100.0% | Q3 2025 | Mar 31, 2026 |
| Rockefeller Capital Management L.P. | History | Closed out | 0 | 0 | — | 0.0% | — | -2,365 | -100.0% | Q3 2025 | Nov 14, 2025 |
| GF FUND MANAGEMENT CO. LTD. | History | Closed out | 0 | 0 | — | 0.0% | — | -1,918 | -100.0% | Q3 2025 | Nov 07, 2025 |
| Rise Advisors, LLC | History | Closed out | 0 | 0 | — | — | — | -769 | -100.0% | Q3 2025 | Oct 08, 2025 |
| Avion Wealth | History | Reduced | 72 | 0 | — | — | — | -644 | -89.94% | Q4 2025 | Jan 23, 2026 |
| PNC FINANCIAL SERVICES GROUP, INC. | History | Reduced | 62 | 0 | — | — | — | -552 | -89.9% | Q4 2025 | Feb 06, 2026 |
| Bare Financial Services, Inc | History | Closed out | 0 | 0 | — | — | — | -549 | -100.0% | Q3 2025 | Nov 12, 2025 |
| Bogart Wealth, LLC | History | Reduced | 50 | 0 | — | — | — | -450 | -90.0% | Q4 2025 | Jan 30, 2026 |
| EverSource Wealth Advisors, LLC | History | Reduced | 31 | 0 | — | — | — | -423 | -93.17% | Q4 2025 | Feb 06, 2026 |
| Parallel Advisors, LLC | History | Reduced | 47 | 0 | — | — | — | -418 | -89.89% | Q4 2025 | Feb 11, 2026 |
| NISA INVESTMENT ADVISORS, LLC | History | Reduced | 44 | 0 | — | — | — | -396 | -90.0% | Q4 2025 | Jan 15, 2026 |
| JONES FINANCIAL COMPANIES LLLP | History | Closed out | 0 | 0 | — | — | — | -250 | -100.0% | Q3 2025 | Nov 04, 2025 |
| HighMark Wealth Management LLC | History | Reduced | 23 | 0 | — | — | — | -202 | -89.78% | Q4 2025 | Feb 05, 2026 |
| Advisory Services Network, LLC | History | Closed out | 0 | 0 | — | — | — | -147 | -100.0% | Q3 2025 | Nov 18, 2025 |
| Fortitude Family Office, LLC | History | New | 56 | 0 | — | — | — | +56 | New | Q4 2025 | Jan 15, 2026 |
| COMERICA BANK | History | Reduced | 3 | 0 | — | — | — | -46 | -93.88% | Q4 2025 | Jan 29, 2026 |
| True Wealth Design, LLC | History | Closed out | 0 | 0 | — | — | — | -45 | -100.0% | Q3 2025 | Oct 21, 2025 |
| IFP Advisors, Inc | History | Closed out | 0 | 0 | — | — | — | -21 | -100.0% | Q3 2025 | Feb 06, 2026 |
| GROUP ONE TRADING LLC | History | Reduced | 2 | 0 | — | — | — | -18 | -90.0% | Q4 2025 | Feb 12, 2026 |
| ROYAL BANK OF CANADA | History | New | 11 | 0 | — | — | — | +11 | New | Q4 2025 | Feb 17, 2026 |
| SBI Securities Co., Ltd. | History | Closed out | 0 | 0 | — | — | — | -2 | -100.0% | Q3 2025 | Nov 05, 2025 |