DaveManuel.com · Institutional Ownership · Who Owns It
Sutro Biopharma Inc (STRO)
Institutional ownership reported to the SEC as of Q2 2026, across 32 quarters.
101
Reporting holders
$546.4M
Reported value
99.4%
Of shares outstanding
0.1%
Calls
0.1%
Puts
+24
Holder change
Institutions report 16,480,214 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.
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
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 |
| ACADIAN ASSET MANAGEMENT LLC | $12.4M | 373,839 | 0.01% | 3q | +11.3%+$1.3M |
| 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 |
| 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 incl. $733.7K options CALL+PUT | 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 |
| GSA CAPITAL PARTNERS LLP | $656.0K | 19,749 | 0.04% | 3q | -23.5%-$201.7K |
| 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 |
| PRICE T ROWE ASSOCIATES INC /MD/ | $452.0K | 13,597 | 0.00% | new | NEW |
| 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 |
| FNY Investment Advisers, LLC | $33.0K | 1,000 | 0.01% | 3q | HELD |
| Tower Research Capital LLC (TRC) | $28.8K | 866 | 0.00% | new | NEW |
| ROYAL BANK OF CANADA | $23.0K | 687 | 0.00% | 2q | +5625.0%+$22.6K |
| Owl Creek Wealth Partners LLC | $16.3K | 491 | 0.00% | 2q | HELD |
| SIMPLEX TRADING, LLC | $10.0K CALL+PUT | options only | 0.00% | 3q | OPTIONS |
| Sterling Capital Management LLC | $9.3K | 281 | 0.00% | new | NEW |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | $7.3K | 220 | 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 |
| 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 |
| Avion Wealth | $1.0K | 46 | 0.00% | 2q | -36.1% |
| HighMark Wealth Management LLC | $763 | 23 | 0.00% | 3q | HELD |
| Arax Advisory Partners | $531 | 16 | 0.00% | 3q | -61.0% |
| FIFTH THIRD BANCORP | $66 | 2 | 0.00% | 2q | HELD |
| Steward Partners Investment Advisory, LLC | $66 | 2 | 0.00% | new | NEW |
Showing the largest 100 of 101 reported holders.
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 |
|---|---|---|---|---|---|---|---|
| Q3 2026 | 10 | $1.5M | 94,852 | 2 | 3 | 0 | 0.0% |
| Q2 2026 | 101 | $546.4M | 16,480,214 | 42 | 22 | 18 | 0.1% |
| Q1 2026 | 77 | $361.1M | 14,408,652 | 24 | 21 | 13 | 0.6% |
| Q4 2025 | 63 | $65.0M | 5,613,746 | 58 | 0 | 6 | 0.1% |
| Q3 2025 | 87 | $46.4M | 53,465,387 | 10 | 17 | 32 | 0.0% |
| Q2 2025 | 102 | $39.9M | 55,777,140 | 30 | 23 | 25 | 0.1% |
| Q1 2025 | 114 | $40.1M | 61,494,764 | 19 | 36 | 30 | 0.2% |
| Q4 2024 | 123 | $117.9M | 63,895,959 | 16 | 39 | 35 | 0.3% |
| Q3 2024 | 130 | $217.0M | 62,575,461 | 24 | 49 | 31 | 0.2% |
| Q2 2024 | 119 | $185.3M | 63,225,636 | 22 | 54 | 28 | 0.0% |
| Q1 2024 | 117 | $308.3M | 54,559,695 | 22 | 46 | 31 | 0.0% |
| Q4 2023 | 113 | $240.0M | 55,938,313 | 16 | 44 | 25 | 0.0% |
| Q3 2023 | 109 | $194.3M | 55,996,600 | 7 | 41 | 31 | 0.0% |
| Q2 2023 | 121 | $251.6M | 54,105,236 | 19 | 44 | 36 | 0.0% |
| Q1 2023 | 115 | $247.9M | 53,804,614 | 18 | 51 | 26 | 0.0% |
| Q4 2022 | 118 | $405.6M | 49,964,315 | 17 | 54 | 32 | 0.5% |
| Q3 2022 | 109 | $358.1M | 64,496,444 | 11 | 43 | 29 | 0.1% |
| Q2 2022 | 112 | $296.4M | 56,555,931 | 31 | 34 | 25 | 0.6% |
| Q1 2022 | 109 | $440.4M | 53,586,543 | 20 | 36 | 35 | 0.0% |
| Q4 2021 | 116 | $866.0M | 58,064,449 | 12 | 42 | 37 | 0.2% |
| Q3 2021 | 119 | $1.1B | 60,525,417 | 10 | 42 | 36 | 0.0% |
| Q2 2021 | 122 | $1.1B | 61,256,268 | 12 | 49 | 42 | 0.0% |
| Q1 2021 | 137 | $1.4B | 61,425,877 | 26 | 59 | 31 | 0.5% |
| Q4 2020 | 133 | $1.3B | 57,967,938 | 58 | 44 | 17 | 0.3% |
| Q3 2020 | 84 | $484.7M | 48,228,864 | 17 | 40 | 16 | 0.0% |
| Q2 2020 | 77 | $235.4M | 30,331,892 | 22 | 34 | 10 | 0.0% |
| Q1 2020 | 59 | $157.0M | 15,396,192 | 1 | 25 | 16 | 0.0% |
| Q4 2019 | 63 | $152.7M | 13,883,050 | 11 | 22 | 9 | 0.0% |
| Q3 2019 | 58 | $106.1M | 11,674,437 | 6 | 23 | 14 | 0.0% |
| Q2 2019 | 57 | $134.0M | 11,816,303 | 12 | 20 | 12 | 0.0% |
| Q1 2019 | 48 | $127.5M | 11,230,262 | 7 | 13 | 10 | 0.0% |
| Q4 2018 | 43 | $97.7M | 10,900,232 | 5 | 1 | 0 | 0.0% |