Only open-market buys / sells (codes P/S) are a conviction signal; grants, option exercises, tax-withholding, and gifts are compensation mechanics, shown but greyed. The trailing 12-month tallies run to today but the store covers filings through 2026-06-30 only (SEC bulk data sets publish quarterly), so recent activity may be absent.
| Date | Insider | Role | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-05-27 | Aktar Mert | Director | +Grant | 5,093 | — | — |
| 2026-05-27 | Shaw Christi | Director,Officer | −Tax w/h | 4,194 | $8.59 | $36,026 |
| 2026-05-27 | SEIDENBERG BETH C | Director | +Grant | 5,093 | — | — |
| 2026-05-27 | Cohen Fred E | Director | +Grant | 5,093 | — | — |
| 2026-05-27 | CLARK IAN T | Director | +Grant | 5,093 | — | — |
| 2026-03-13 | Biddle Warner Weston | Director,Officer | +Grant | 58,000 | — | — |
| 2026-03-13 | GRASSO MARC | Officer | +Grant | 10,000 | — | — |
| 2026-03-13 | GEHCHAN NAJI | Officer | +Grant | 18,000 | — | — |
| 2026-02-24 | Emany Sravan Kumar | Director | +Grant | 11,006 | — | — |
| 2026-02-24 | Miller Andrew Craig | Director | +Grant | 11,006 | — | — |
| 2026-01-12 | Shaw Christi | Director,Officer | +Grant | 24,301 | — | — |
| 2026-01-12 | Shaw Christi | Director,Officer | +Grant | 30,000 | — | — |
| 2025-12-18 | Westlake BioPartners Opportunity Fund I, L.P. | TenPercentOwner | +Buy | 133,333 | $7.50 | $999,998 |
| 2025-12-18 | SEIDENBERG BETH C | Director | +Buy | 133,333 | $7.50 | $999,998 |
| 2025-12-15 | Walker Karen Marie | Officer | −Sell | 23,998 | $12.20 | $292,776 |
| 2025-12-15 | Walker Karen Marie | Officer | +Exercise | 23,998 | $4.83 | $115,910 |
| 2025-05-29 | Cohen Fred E | Director,TenPercentOwner | +Grant | 16,634 | — | — |
| 2025-05-29 | CLARK IAN T | Director | +Grant | 16,634 | — | — |
| 2025-05-29 | Aktar Mert | Director | +Grant | 16,634 | — | — |
| 2025-05-29 | SPIEGELMAN DANIEL K | Director | +Grant | 16,634 | — | — |
| 2025-05-29 | SEIDENBERG BETH C | Director,TenPercentOwner | +Grant | 16,634 | — | — |
| 2025-05-29 | Shaw Christi | Director | +Grant | 16,634 | — | — |
| 2025-04-11 | Walker Karen Marie | Officer | +Grant | 13,000 | — | — |
| 2025-04-11 | Jones Ryan Alexander | Officer | +Grant | 12,000 | — | — |
| 2024-06-06 | Walker Karen Marie | Officer | +Exercise | 9,636 | $4.42 | $42,591 |
| 2024-05-28 | Jones Ryan Alexander | Officer | +Exercise | 7,146 | $0.73 | $5,217 |
| 2024-05-28 | Jones Ryan Alexander | Officer | +Exercise | 10,870 | $0.73 | $7,935 |
| 2024-02-12 | Northpond Ventures III GP, LLC | Other | +Conversion | 2,805,426 | — | — |
| 2024-02-12 | Northpond Ventures III GP, LLC | Other | +Buy | 450,000 | $22.00 | $10M |
| 2024-02-12 | GILEAD SCIENCES, INC. | TenPercentOwner | +Buy | 910,000 | $22.00 | $20M |
| 2024-02-12 | GILEAD SCIENCES, INC. | TenPercentOwner | +Conversion | 3,216,119 | — | — |
| 2024-02-12 | Bain Capital Life Sciences Fund III, L.P. | TenPercentOwner | +Buy | 450,000 | $22.00 | $10M |
| 2024-02-12 | Bain Capital Life Sciences Fund III, L.P. | TenPercentOwner | +Conversion | 2,713,868 | — | — |
| 2024-02-12 | Westlake BioPartners GP I, LLC | TenPercentOwner | +Conversion | 735,984 | — | — |
| 2024-02-12 | Westlake BioPartners GP I, LLC | TenPercentOwner | +Conversion | 3,787,940 | — | — |
| 2024-02-12 | SEIDENBERG BETH C | Director,TenPercentOwner | +Conversion | 735,984 | — | — |
| 2024-02-12 | SEIDENBERG BETH C | Director,TenPercentOwner | +Conversion | 3,787,940 | — | — |
| 2024-02-12 | Cohen Fred E | Director,TenPercentOwner | +Conversion | 4,523,924 | — | — |
| 2024-02-12 | Vida Ventures GP III, L.L.C. | TenPercentOwner | +Buy | 583 | $22.00 | $12,826 |
| 2024-02-12 | Vida Ventures GP III, L.L.C. | TenPercentOwner | +Buy | 252,553 | $22.00 | $6M |
| 2024-02-12 | Vida Ventures GP III, L.L.C. | TenPercentOwner | +Conversion | 4,523,924 | — | — |
Source: the SEC bulk insider (Form 3/4/5) data sets — non-derivative transactions in the issuer's common stock, most recent first, covering filings through 2026-06-30. Insiders file within 2 business days of a transaction, but the bulk sets publish quarterly, so this store lags live filings; option/derivative lines are excluded. Codes: P buy · S sell · A grant · M/X/C exercise · F tax · G gift.
Model-derived estimate for research. See the Disclaimer.
