SUTRO BIOPHARMA INC (STRO)
Institutional ownership reported to the SEC as of Q2 2026, across 31 quarters.
97
Reporting holders
$534.5M
Reported value
97.2%
Of shares outstanding
0.1%
Held as options
+25
Holder change
Institutions report 16,121,177 shares against 16,581,171 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end. A figure this high can overstate: where an adviser and a sub-adviser both report the same shares, both are counted.
Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| PERCEPTIVE ADVISORS LLC | $43.3M | 1,304,846 | 0.65% | 2q | +82.4%+$19.6M |
| BVF INC/IL | $41.6M | 1,251,788 | 1.06% | 2q | HELD |
| Affinity Asset Advisors, LLC | $38.9M | 1,172,487 | 1.76% | 3q | +9.6%+$3.4M |
| BlackRock, Inc. | $37.3M | 1,122,655 | 0.00% | 3q | +382.5%+$29.5M |
| SAMSARA BIOCAPITAL, LLC | $35.3M | 1,062,872 | 2.90% | 3q | HELD |
| Kynam Capital Management, LP | $29.0M | 872,558 | 1.60% | 3q | HELD |
| ORBIMED ADVISORS LLC | $24.7M | 743,944 | 0.46% | 2q | -7.1%-$1.9M |
| Balyasny Asset Management L.P. | $23.6M | 711,162 | 0.03% | 3q | +52.7%+$8.1M |
| VANGUARD CAPITAL MANAGEMENT LLC | $23.0M | 694,219 | 0.00% | 2q | -3.6%-$870.6K |
| EVENTIDE ASSET MANAGEMENT, LLC | $19.4M | 585,262 | 0.26% | 2q | -18.2%-$4.3M |
| Velan Capital Investment Management LP | $17.0M | 512,160 | 10.36% | 3q | HELD |
| Woodline Partners LP | $15.2M | 458,029 | 0.05% | 2q | HELD |
| ADAR1 Capital Management, LLC | $13.4M | 404,014 | 0.61% | 3q | -23.0%-$4.0M |
| GEODE CAPITAL MANAGEMENT, LLC | $12.9M | 389,692 | 0.00% | 3q | +127.4%+$7.2M |
| MILLENNIUM MANAGEMENT LLC | $12.2M | 365,972 | 0.00% | 3q | +74.0%+$5.2M |
| STATE STREET CORP | $10.2M | 305,979 | 0.00% | 3q | +487.1%+$8.4M |
| Merck & Co., Inc. | $9.0M | 272,351 | 1.72% | new | NEW |
| ACUTA CAPITAL PARTNERS, LLC | $9.0M | 270,251 | 6.25% | 3q | HELD |
| AMERIPRISE FINANCIAL INC | $8.1M | 244,669 | 0.00% | new | NEW |
| Point72 Asset Management, L.P. | $7.9M | 237,827 | 0.01% | 3q | -65.6%-$15.1M |
| KVP Capital Advisors, LP | $7.5M | 226,575 | 5.52% | 2q | HELD |
| UBS Group AG | $6.9M | 208,512 | 0.00% | 3q | -46.9%-$6.1M |
| TWO SIGMA INVESTMENTS, LP | $6.7M | 201,688 | 0.00% | 3q | +209.5%+$4.5M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $6.6M | 197,562 | 0.00% | new | NEW |
| MARSHALL WACE, LLP | $5.8M | 175,246 | 0.00% | 3q | -21.3%-$1.6M |
| Nuveen, LLC | $5.6M | 167,997 | 0.00% | new | NEW |
| JPMORGAN CHASE & CO | $5.3M | 159,627 | 0.00% | new | NEW |
| GOLDMAN SACHS GROUP INC | $5.0M | 149,216 | 0.00% | 3q | +448.9%+$4.1M |
| NORTHERN TRUST CORP | $4.2M | 125,933 | 0.00% | 3q | +279.7%+$3.1M |
| Seven Fleet Capital Management LP | $3.8M | 159,118 | 0.63% | new | NEW |
| Qube Research & Technologies Ltd | $3.5M | 106,610 | 0.00% | new | NEW |
| VANGUARD FIDUCIARY TRUST CO | $3.5M | 104,232 | 0.00% | 2q | +9.9%+$311.9K |
| CITADEL ADVISORS LLC | $3.4M | 101,965 | 0.00% | 3q | -13.2%-$517.0K |
| MACKENZIE FINANCIAL CORP | $3.1M | 94,767 | 0.00% | new | NEW |
| RENAISSANCE TECHNOLOGIES LLC | $2.9M | 86,324 | 0.00% | 3q | -11.8%-$381.8K |
| Invesco Ltd. | $1.9M | 57,305 | 0.00% | 3q | +233.8%+$1.3M |
| Y-Intercept (Hong Kong) Ltd | $1.9M | 55,879 | 0.04% | new | NEW |
| Squarepoint Ops LLC | $1.8M | 55,539 | 0.00% | new | NEW |
| XTX Topco Ltd | $1.7M | 52,169 | 0.02% | 2q | +536.0%+$1.5M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $1.6M | 49,302 | 0.00% | 2q | +366.1%+$1.3M |
| Sixth Street Partners Management Company, L.P. | $1.6M | 49,302 | 0.00% | new | NEW |
| Sigma Planning Corp | $1.5M | 45,020 | 0.04% | 2q | +259.6%+$1.1M |
| Bank of New York Mellon Corp | $1.4M | 41,369 | 0.00% | new | NEW |
| BARCLAYS PLC | $1.2M | 36,954 | 0.00% | 2q | +26485.6%+$1.2M |
| BANK OF AMERICA CORP /DE/ | $1.2M | 36,140 | 0.00% | 3q | +91.5%+$573.3K |
| Fisher Asset Management, LLC | $1.2M | 35,295 | 0.00% | 3q | HELD |
| Elmind Capital, LP | $1.1M | 32,037 | 0.27% | new | NEW |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $1.0M | 8,426 | 0.00% | 2q | -90.1%-$9.2M |
| D. E. Shaw & Co., Inc. | $1.0M | 30,128 | 0.00% | new | NEW |
| Trexquant Investment LP | $917.5K | 27,636 | 0.01% | 2q | -19.5%-$222.7K |
| BNP PARIBAS FINANCIAL MARKETS | $909.1K | 27,383 | 0.00% | 3q | +24569.4%+$905.4K |
| RHUMBLINE ADVISERS | $684.8K | 20,628 | 0.00% | new | NEW |
| SEI INVESTMENTS CO | $544.0K | 16,387 | 0.00% | new | NEW |
| Informed Momentum Co LLC | $538.9K | 16,232 | 0.05% | new | NEW |
| DEUTSCHE BANK AG\ | $516.7K | 15,563 | 0.00% | new | NEW |
| RBF Capital, LLC | $507.0K | 15,272 | 0.02% | 3q | HELD |
| WELLS FARGO & COMPANY/MN | $449.7K | 13,544 | 0.00% | new | NEW |
| MORGAN STANLEY | $410.2K | 12,356 | 0.00% | 3q | +17.4%+$60.7K |
| WELLINGTON MANAGEMENT GROUP LLP | $358.6K | 10,800 | 0.00% | new | NEW |
| MetLife Investment Management, LLC | $312.1K | 9,401 | 0.00% | new | NEW |
| Walleye Capital LLC | $309.0K | 9,306 | 0.00% | new | NEW |
| Integrated Quantitative Investments LLC | $296.8K | 8,939 | 0.05% | new | NEW |
| Lighthouse Investment Partners, LLC | $277.8K | 8,368 | 0.01% | new | NEW |
| CITIGROUP INC | $247.5K | 7,456 | 0.00% | 3q | -60.4%-$378.1K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $242.8K | 7,313 | 0.00% | new | NEW |
| ALLIANCEBERNSTEIN L.P. | $242.4K | 7,300 | 0.00% | new | NEW |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM | $232.4K | 7,001 | 0.00% | new | NEW |
| Persistent Asset Partners Ltd | $218.1K | 6,569 | 0.07% | 2q | -11.4%-$28.0K |
| Verdad Advisers, LP | $212.5K | 6,400 | 0.20% | new | NEW |
| HSBC HOLDINGS PLC | $205.7K | 6,234 | 0.00% | new | NEW |
| NEW YORK STATE COMMON RETIREMENT FUND | $185.9K | 5,600 | 0.00% | new | NEW |
| Vanguard Global Advisers, LLC | $180.8K | 5,445 | 0.00% | 2q | -24.2%-$57.7K |
| Police & Firemen's Retirement System of New Jersey | $156.2K | 4,704 | 0.00% | new | NEW |
| Legal & General Group Plc | $114.9K | 3,462 | 0.00% | new | NEW |
| State of Wyoming | $53.7K | 1,618 | 0.01% | new | NEW |
| Ameritas Investment Partners, Inc. | $48.1K | 1,448 | 0.00% | new | NEW |
| FMR LLC | $44.5K | 1,339 | 0.00% | 3q | +27.5%+$9.6K |
| Russell Investments Group, Ltd. | $42.3K | 1,275 | 0.00% | new | NEW |
| Tower Research Capital LLC (TRC) | $28.8K | 866 | 0.00% | new | NEW |
| ROYAL BANK OF CANADA | $23.0K | 687 | 0.00% | new | NEW |
| Owl Creek Wealth Partners LLC | $16.3K | 491 | 0.00% | 2q | HELD |
| ACADIAN ASSET MANAGEMENT LLC | $12.4K | 373,839 | 0.01% | 3q | +11.3%+$1.3K |
| SIMPLEX TRADING, LLC | $10.0K | options only | 0.00% | 3q | OPTIONS |
| Sterling Capital Management LLC | $9.3K | 281 | 0.00% | new | NEW |
| Quantbot Technologies LP | $6.7K | 201 | 0.00% | new | NEW |
| Physician Wealth Advisors, Inc. | $6.0K | 182 | 0.00% | 3q | HELD |
| MERCER GLOBAL ADVISORS INC /ADV | $3.7K | 112 | 0.00% | new | NEW |
| OSAIC HOLDINGS, INC. | $3.3K | 100 | 0.00% | 3q | -92.2%-$39.2K |
| PNC Financial Services Group, Inc. | $2.1K | 62 | 0.00% | 3q | HELD |
| Fortitude Family Office, LLC | $1.9K | 56 | 0.00% | 3q | HELD |
| Bogart Wealth, LLC | $1.7K | 50 | 0.00% | 14q | HELD |
| Parallel Advisors, LLC | $1.6K | 47 | 0.00% | 22q | HELD |
| NISA INVESTMENT ADVISORS, LLC | $1.5K | 44 | 0.00% | 3q | HELD |
| HighMark Wealth Management LLC | $763 | 23 | 0.00% | 3q | HELD |
| GSA CAPITAL PARTNERS LLP | $656 | 19,749 | 0.04% | 3q | -23.5% |
| Arax Advisory Partners | $531 | 16 | 0.00% | 3q | -61.0% |
| PRICE T ROWE ASSOCIATES INC /MD/ | $452 | 13,597 | 0.00% | new | NEW |
| FIFTH THIRD BANCORP | $66 | 2 | 0.00% | 2q | HELD |
| Steward Partners Investment Advisory, LLC | $66 | 2 | 0.00% | new | NEW |
| Optiver Holding B.V. | $66 | 2 | 0.00% | new | NEW |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-08-14 | 13G/A | Point72 Asset Management, L.P.with 2 co-filers | 1.4% |
| 2026-08-14 | 13G/A | Perceptive Advisors LLCwith 2 co-filers | 7.9% |
| 2026-07-30 | 13G | BlackRock, Inc. | 6.4% |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 97 | $534.5M | 16,121,177 | 43 | 20 | 16 | 0.1% |
| Q1 2026 | 72 | $352.1M | 14,045,933 | 22 | 21 | 11 | 0.6% |
| Q4 2025 | 58 | $60.0M | 5,184,221 | 53 | 0 | 6 | 0.1% |
| Q3 2025 | 83 | $43.3M | 49,865,986 | 8 | 16 | 31 | 0.0% |
| Q2 2025 | 98 | $37.6M | 52,581,789 | 29 | 21 | 24 | 0.0% |
| Q1 2025 | 108 | $37.9M | 58,176,059 | 17 | 32 | 30 | 0.1% |
| Q4 2024 | 118 | $114.3M | 61,972,993 | 15 | 36 | 34 | 0.3% |
| Q3 2024 | 123 | $211.0M | 60,856,251 | 22 | 45 | 31 | 0.2% |
| Q2 2024 | 111 | $179.8M | 61,333,887 | 19 | 51 | 26 | 0.0% |
| Q1 2024 | 106 | $297.3M | 52,649,576 | 17 | 42 | 28 | 0.0% |
| Q4 2023 | 106 | $232.8M | 54,268,480 | 14 | 40 | 24 | 0.0% |
| Q3 2023 | 102 | $190.2M | 54,800,647 | 5 | 38 | 31 | 0.0% |
| Q2 2023 | 116 | $247.2M | 53,176,117 | 18 | 43 | 35 | 0.0% |
| Q1 2023 | 104 | $238.2M | 51,756,217 | 17 | 45 | 23 | 0.0% |
| Q4 2022 | 103 | $371.5M | 45,754,254 | 16 | 51 | 21 | 0.5% |
| Q3 2022 | 113 | $286.7M | 51,631,414 | 11 | 46 | 30 | 0.1% |
| Q2 2022 | 115 | $242.7M | 46,246,565 | 31 | 36 | 26 | 0.7% |
| Q1 2022 | 113 | $342.2M | 41,642,440 | 21 | 38 | 36 | 0.0% |
| Q4 2021 | 118 | $601.0M | 40,257,741 | 12 | 43 | 37 | 0.3% |
| Q3 2021 | 121 | $752.5M | 39,838,089 | 10 | 43 | 36 | 0.0% |
| Q2 2021 | 124 | $767.1M | 41,241,259 | 12 | 50 | 43 | 0.1% |
| Q1 2021 | 139 | $1.0B | 44,385,113 | 26 | 62 | 30 | 0.7% |
| Q4 2020 | 136 | $859.3M | 39,392,879 | 59 | 44 | 18 | 0.5% |
| Q3 2020 | 86 | $313.1M | 31,151,747 | 18 | 41 | 16 | 0.0% |
| Q2 2020 | 78 | $189.1M | 24,363,696 | 22 | 34 | 11 | 0.0% |
| Q1 2020 | 60 | $121.6M | 11,928,049 | 1 | 26 | 16 | 0.0% |
| Q4 2019 | 64 | $128.8M | 11,712,653 | 11 | 23 | 9 | 0.0% |
| Q3 2019 | 59 | $100.7M | 11,076,308 | 6 | 24 | 14 | 0.0% |
| Q2 2019 | 58 | $134.1M | 11,817,484 | 12 | 20 | 13 | 0.0% |
| Q1 2019 | 49 | $127.5M | 11,231,778 | 8 | 13 | 10 | 0.0% |
| Q4 2018 | 43 | $97.7M | 10,900,232 | 5 | 1 | 0 | 0.0% |