Transactions disclosed by company insiders to the SEC on Form 4, most recent first.
| Insider | Role | Date | Shares | Value |
|---|---|---|---|---|
| Heyman Richard A. | Insider | 2026-07-24 | 3,500 | $5,600 |
| Heyman Richard A. | Insider | 2026-07-24 | 7,000 | $84,140 |
| Heyman Richard A. | Insider | 2026-07-24 | 6,100 | $73,322 |
Position changes disclosed in SEC Form 13F filings. These report a quarterly snapshot, not exact trade dates.
| Fund | Change | Quarter |
|---|---|---|
| Paradigm Biocapital Advisors LP | Paradigm Biocapital Advisors LP exited a position previously worth $21,554,419. | 2026-06-30 |
| Pfizer Inc | Pfizer Inc reduced this position by 94% ($57,651,636 -> $3,553,775). | 2026-06-30 |
| VIKING GLOBAL INVESTORS LP | VIKING GLOBAL INVESTORS LP reduced this position by 25% ($73,796,833 -> $55,522,832). | 2026-06-30 |
| ALKEON CAPITAL MANAGEMENT LLC | ALKEON CAPITAL MANAGEMENT LLC reduced this position by 29% ($47,535,534 -> $33,845,158). | 2026-06-30 |
| ALGERT GLOBAL LLC | ALGERT GLOBAL LLC increased this position by 761568% ($1,728 -> $13,161,623). | 2026-06-30 |
| Nextech Invest Ltd. | Nextech Invest Ltd. reduced this position by 15% ($90,750,611 -> $77,571,359). | 2026-06-30 |
| Candriam S.C.A. | Candriam S.C.A. opened a new position worth $12,764,594. | 2026-06-30 |
| Logos Global Management LP | Logos Global Management LP exited a position previously worth $12,036,500. | 2026-06-30 |
Largest reported positions as of 2026-06-30.
| Fund | Value | Shares |
|---|---|---|
| Nextech Invest Ltd. | $77,571,359 | 7,162,637 |
| EcoR1 Capital, LLC | $72,865,496 | 6,728,116 |
| VIKING GLOBAL INVESTORS LP | $55,522,832 | 5,126,762 |
| SR One Capital Management, LP | $49,984,609 | 4,615,384 |
| Venrock Adviser, LLC | $46,783,055 | 4,319,765 |
| NEA Management Company, LLC | $44,604,665 | 4,118,621 |
| VANGUARD CAPITAL MANAGEMENT LLC | $42,791,160 | 3,951,169 |
| AIHC Capital Management Ltd | $41,462,222 | 3,828,460 |
| Column Group LLC | $38,346,615 | 3,540,777 |
| ALKEON CAPITAL MANAGEMENT LLC | $33,845,158 | 3,125,130 |
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