Position changes disclosed in SEC Form 13F filings. These report a quarterly snapshot, not exact trade dates.
| Fund | Change | Quarter |
|---|---|---|
| Capital World Investors | Capital World Investors opened a new position worth $22,066,997. | 2026-06-30 |
| MILLENNIUM MANAGEMENT LLC | MILLENNIUM MANAGEMENT LLC reduced this position by 60% ($48,042,840 -> $19,231,505). | 2026-06-30 |
| CITADEL ADVISORS LLC | CITADEL ADVISORS LLC reduced this position by 97% ($12,919,330 -> $406,315). | 2026-06-30 |
| Tyro Capital Management LLC | Tyro Capital Management LLC increased this position by 50% ($23,837,850 -> $35,719,289). | 2026-06-30 |
| BOOTHBAY FUND MANAGEMENT, LLC | BOOTHBAY FUND MANAGEMENT, LLC increased this position by 537% ($2,012,294 -> $12,828,047). | 2026-06-30 |
| BAMCO INC /NY/ | BAMCO INC /NY/ exited a position previously worth $10,224,928. | 2026-06-30 |
| CenterBook Partners LP | CenterBook Partners LP reduced this position by 85% ($6,621,406 -> $990,228). | 2026-06-30 |
| Lisanti Capital Growth, LLC | Lisanti Capital Growth, LLC exited a position previously worth $4,619,330. | 2026-06-30 |
Largest reported positions as of 2026-06-30.
| Fund | Value | Shares |
|---|---|---|
| RA CAPITAL MANAGEMENT, L.P. | $86,996,426 | 10,860,977 |
| Rubric Capital Management LP | $68,412,297 | 8,540,861 |
| ORBIMED ADVISORS LLC | $66,390,965 | 8,288,510 |
| DEERFIELD MANAGEMENT COMPANY, L.P. | $60,105,534 | 7,503,812 |
| Tyro Capital Management LLC | $35,719,289 | 4,459,337 |
| Aberdeen Group plc | $33,406,738 | 4,170,629 |
| SR One Capital Management, LP | $32,143,353 | 4,012,903 |
| Capital World Investors | $22,066,997 | 2,754,931 |
| VANGUARD CAPITAL MANAGEMENT LLC | $20,453,759 | 2,553,528 |
| MILLENNIUM MANAGEMENT LLC | $19,231,505 | 2,400,937 |
Data compiled from public SEC filings. This is informational reporting, not investment advice.
SR One Capital Management, LP is a healthcare-focused institutional investor whose equity holdings are disclosed each quarter through SEC Form 13F filings. This page tracks those disclosures over time, similar to how investors follow the largest hedge funds buying and selling names like UNH or watch a portfolio including cash evolve position by position. Each … Read more