Review the latest institutional ownership data for OUST based on recent 13F filings. Holdings Channel tracks 235 institutional holders of OUST across the most recent two holding periods in our 13F database.
The table below shows the top 50 institutional holders of OUST by reported position size, including share amounts, position values, and the filing period for each holder. Holder names link to each institution’s 13F portfolio page.
OUST institutional holders summary
- Security: OUST
- Institutional holders tracked: 235
- Largest reported holder shown: BlackRock Inc.
- Table includes: holder name, share amount, position value, and filing period
- Source: recent institutional 13F filings
| Holder | Amount | Position Size ($ in 1000's) | As of |
|---|---|---|---|
 BlackRock Inc. | 5,290,375 | $97,184 | 03/31/2026 |
| OUST | 5,290,375 | $97,184 | 03/31/2026 |
| Vanguard Capital Management LLC | 2,664,383 | $48,945 | 03/31/2026 |
| OUST | 2,664,383 | $48,945 | 03/31/2026 |
| Vanguard Portfolio Management LLC | 1,770,252 | $32,520 | 03/31/2026 |
| OUST | 1,770,252 | $32,520 | 03/31/2026 |
| State Street Corp | 1,632,666 | $29,992 | 03/31/2026 |
| OUST | 1,632,666 | $29,992 | 03/31/2026 |
| Geode Capital Management LLC | 1,450,108 | $26,644 | 03/31/2026 |
| OUST | 1,450,108 | $26,644 | 03/31/2026 |
| Penn Capital Management Co. Inc. | 969,605 | $17,853 | 03/31/2026 |
| OUST | 969,605 | $17,853 | 03/31/2026 |
| Tao Capital Management LP | 845,316 | $15,528 | 03/31/2026 |
| OUST | 845,316 | $15,528 | 03/31/2026 |
| D. E. Shaw & Co. Inc. | 842,089 | $15,469 | 03/31/2026 |
| OUST | 842,089 | $15,469 | 03/31/2026 |
 PEAK6 LLC | $15,435 | 03/31/2026 | |
| Call | 810,900 | $14,896 | 03/31/2026 |
| OUST | 30,308 | $557 | 03/31/2026 |
| Put | 1,000 | $18 | 03/31/2026 |
| Goldman Sachs Group Inc. | 826,233 | $15,178 | 03/31/2026 |
| OUST | 826,233 | $15,178 | 03/31/2026 |
| Morgan Stanley | 732,975 | $13,465 | 03/31/2026 |
| OUST | 732,975 | $13,465 | 03/31/2026 |
| New York State Common Retirement Fund | 588,212 | $10,805 | 03/31/2026 |
| OUST | 588,212 | $10,805 | 03/31/2026 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 516,727 | $9,492 | 03/31/2026 |
| OUST | 516,727 | $9,492 | 03/31/2026 |
| Susquehanna International Group LLP | $9,017 | 03/31/2026 | |
| Call | 904,500 | $16,616 | 03/31/2026 |
| Put | 620,400 | $11,397 | 03/31/2026 |
| OUST | 206,733 | $3,798 | 03/31/2026 |
| Charles Schwab Investment Management Inc. | 488,295 | $8,970 | 03/31/2026 |
| OUST | 488,295 | $8,970 | 03/31/2026 |
| Northern Trust Corp | 485,875 | $8,926 | 03/31/2026 |
| OUST | 485,875 | $8,926 | 03/31/2026 |
| Arrowstreet Capital Limited Partnership | 485,279 | $8,915 | 03/31/2026 |
| OUST | 485,279 | $8,915 | 03/31/2026 |
| Dimensional Fund Advisors LP | 483,871 | $8,889 | 03/31/2026 |
| OUST | 483,871 | $8,889 | 03/31/2026 |
| Vanguard Fiduciary Trust Co. | 415,545 | $7,634 | 03/31/2026 |
| OUST | 415,545 | $7,634 | 03/31/2026 |
| Handelsbanken Fonder AB | 95,674 | $5,982 | 06/30/2026 |
| OUST | 95,674 | $5,982 | 06/30/2026 |
| Bastion Asset Management Inc. | 274,101 | $5,271 | 03/31/2026 |
| OUST | 274,101 | $5,271 | 03/31/2026 |
| Ameriprise Financial Inc. | 280,182 | $5,147 | 03/31/2026 |
| OUST | 280,182 | $5,147 | 03/31/2026 |
| Group One Trading L.P. | $4,823 | 03/31/2026 | |
| Call | 188,600 | $3,465 | 03/31/2026 |
| OUST | 131,922 | $2,423 | 03/31/2026 |
| Put | 58,000 | $1,065 | 03/31/2026 |
| FMR LLC | 234,903 | $4,315 | 03/31/2026 |
| OUST | 234,903 | $4,315 | 03/31/2026 |
| AQR Capital Management LLC | 231,421 | $4,251 | 03/31/2026 |
| OUST | 231,421 | $4,251 | 03/31/2026 |
| Lord Abbett & CO. LLC | 230,344 | $4,231 | 03/31/2026 |
| OUST | 230,344 | $4,231 | 03/31/2026 |
| UBS Group AG | 225,939 | $4,150 | 03/31/2026 |
| OUST | 225,939 | $4,150 | 03/31/2026 |
| Bank of America Corp DE | 217,390 | $3,993 | 03/31/2026 |
| OUST | 217,390 | $3,993 | 03/31/2026 |
| Russell Investments Group Ltd. | 216,664 | $3,980 | 03/31/2026 |
| OUST | 216,664 | $3,980 | 03/31/2026 |
| Silvercrest Asset Management Group LLC | 210,999 | $3,876 | 03/31/2026 |
| OUST | 210,999 | $3,876 | 03/31/2026 |
| Canada Pension Plan Investment Board | 209,700 | $3,852 | 03/31/2026 |
| OUST | 209,700 | $3,852 | 03/31/2026 |
| JPMorgan Chase & Co. | $3,764 | 03/31/2026 | |
| OUST | 203,441 | $3,737 | 03/31/2026 |
| Call | 1,600 | $27 | 03/31/2026 |
| Citadel Advisors LLC | $3,751 | 03/31/2026 | |
| Put | 352,500 | $6,475 | 03/31/2026 |
| Call | 339,200 | $6,231 | 03/31/2026 |
| OUST | 217,473 | $3,995 | 03/31/2026 |
| 180 Wealth Advisors LLC | 58,546 | $3,660 | 06/30/2026 |
| OUST | 58,546 | $3,660 | 06/30/2026 |
| Sei Investments Co. | 193,818 | $3,560 | 03/31/2026 |
| OUST | 193,818 | $3,560 | 03/31/2026 |
| Walleye Trading LLC | $3,510 | 03/31/2026 | |
| Call | 179,600 | $3,299 | 03/31/2026 |
| OUST | 18,313 | $336 | 03/31/2026 |
| Put | 6,800 | $125 | 03/31/2026 |
| AWM Investment Company Inc. | 186,000 | $3,417 | 03/31/2026 |
| OUST | 186,000 | $3,417 | 03/31/2026 |
| Essex Investment Management Co. LLC | 184,585 | $3,391 | 03/31/2026 |
| OUST | 184,585 | $3,391 | 03/31/2026 |
| Janus Henderson Group PLC | 177,895 | $3,268 | 03/31/2026 |
| OUST | 177,895 | $3,268 | 03/31/2026 |
| Hennion & Walsh Asset Management Inc. | 51,793 | $3,238 | 06/30/2026 |
| OUST | 51,793 | $3,238 | 06/30/2026 |
| Deutsche Bank AG | 171,723 | $3,155 | 03/31/2026 |
| OUST | 171,723 | $3,155 | 03/31/2026 |
| Walleye Capital LLC | $3,070 | 03/31/2026 | |
| OUST | 159,143 | $2,923 | 03/31/2026 |
| Call | 16,400 | $301 | 03/31/2026 |
| Put | 8,400 | $154 | 03/31/2026 |
| IMC Chicago LLC | $2,906 | 03/31/2026 | |
| Call | 307,200 | $5,643 | 03/31/2026 |
| Put | 149,000 | $2,737 | 03/31/2026 |
| Bank of New York Mellon Corp | 154,444 | $2,837 | 03/31/2026 |
| OUST | 154,444 | $2,837 | 03/31/2026 |
| Herald Investment Management Ltd | 150,000 | $2,757 | 03/31/2026 |
| OUST | 150,000 | $2,757 | 03/31/2026 |
| Nuveen LLC | 132,744 | $2,439 | 03/31/2026 |
| OUST | 132,744 | $2,439 | 03/31/2026 |
| First Trust Advisors LP | 132,709 | $2,438 | 03/31/2026 |
| OUST | 132,709 | $2,438 | 03/31/2026 |
| Renaissance Technologies LLC | 132,600 | $2,436 | 03/31/2026 |
| OUST | 132,600 | $2,436 | 03/31/2026 |
| SG Americas Securities LLC | 127,585 | $2,344 | 03/31/2026 |
| OUST | 127,585 | $2,344 | 03/31/2026 |
| Man Group plc | 120,038 | $2,205 | 03/31/2026 |
| OUST | 120,038 | $2,205 | 03/31/2026 |
