| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Affinity Asset Advisors, LLC | 8.8% | $8,444,817 | 748,382 | Affinity Asset Advisors, LLC | 22 Jan 2026 |
As of 31 Dec 2025, 30 institutional investors reported holding 2,496,491 shares of SUTRO BIOPHARMA, INC. - Common Stock, $0.001 par value per share (STRO). This represents 29% of the company’s total 8,504,341 outstanding shares.
The largest institutional shareholders of SUTRO BIOPHARMA, INC. - Common Stock, $0.001 par value per share (STRO) together control 29% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| Affinity Asset Advisors, LLC | 8.8% | 748,382 | 0.62% | $8,658,780 | |
| VANGUARD GROUP INC | 4.4% | 375,786 | 0% | $4,347,844 | |
| ACADIAN ASSET MANAGEMENT LLC | 4% | 337,953 | 0.01% | $3,908,000 | |
| Velan Capital Investment Management LP | 3.7% | 312,000 | 2.1% | $3,609,840 | |
| RENAISSANCE TECHNOLOGIES LLC | 1.4% | 122,865 | 0% | $1,421,548 | |
| BlackRock, Inc. | 1.4% | 117,437 | 0% | $1,358,746 | |
| GSA CAPITAL PARTNERS LLP | 1% | 89,067 | 0.09% | $1,031,000 | |
| MARSHALL WACE, LLP | 1% | 85,615 | 0% | $990,565 | |
| GEODE CAPITAL MANAGEMENT, LLC | 0.99% | 83,979 | 0% | $971,990 | |
| Spruce Street Capital LP | 0.89% | 75,594 | 0% | 0.29% | $874,623 |
| Fisher Asset Management, LLC | 0.42% | 35,305 | 0% | $408,478 | |
| STATE STREET CORP | 0.4% | 34,266 | 0% | $396,458 | |
| JANE STREET GROUP, LLC | 0.27% | 22,945 | 0% | $265,473 | |
| MORGAN STANLEY | 0.19% | 15,922 | 0% | $184,218 | |
| GOLDMAN SACHS GROUP INC | 0.18% | 15,669 | 0% | $181,290 | |
| OMERS ADMINISTRATION Corp | 0.13% | 11,023 | 0% | $127,536 | |
| UBS Group AG | 0.09% | 7,870 | 0% | $91,056 | |
| CWM, LLC | 0.02% | 1,499 | 0% | $17,000 | |
| CITIGROUP INC | 0.01% | 1,043 | 0% | $12,068 | |
| FNY Investment Advisers, LLC | 0.01% | 1,000 | 0% | $11,000 | |
| JPMORGAN CHASE & CO | 0.01% | 741 | 0% | $8,573 | |
| Physician Wealth Advisors, Inc. | 0% | 182 | 0% | $2,106 | |
| BNP PARIBAS FINANCIAL MARKETS | 0% | 111 | 0% | 0% | $1,284 |
| WELLS FARGO & COMPANY/MN | 0% | 100 | 0% | $1,157 | |
| PNC Financial Services Group, Inc. | 0% | 62 | 0% | $717 |
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 2,496,491 | $28,882,218 | +$28,006,311 | $11.57 | 30 |