2026Q1
| Insider | Role (last 12 mo) | Shares held | Filed at |
|---|---|---|---|
| Perlmutter Roger M | — | 1,190,999 | Feb 4, 2026 |
| Column Group Opportunity III, LP | 10% Owner | 67,043 | Feb 4, 2026 |
| Column Group Opportunity III GP, LP | 10% Owner | 67,043 | Feb 4, 2026 |
| TCG Opportunity III GP, LLC | 10% Owner | 67,043 | Feb 4, 2026 |
| Column Group IV-A, LP | 10% Owner | 67,043 | Feb 4, 2026 |
| Exec date | Filing date | Insider | Role | Signal | Confidence | Shares | % of shares | Under plan? | Amount (USD) |
|---|---|---|---|---|---|---|---|---|---|
| Mar 2, 2026 | Mar 4, 2026 | Klobuchar Michael A | COO | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Mar 2, 2026 | Mar 4, 2026 | Huffines Robert Luther | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Mar 2, 2026 | Mar 4, 2026 | FRAZIER KENNETH C | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Mar 2, 2026 | Mar 4, 2026 | PERLMUTTER ROGER M | Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Mar 2, 2026 | Mar 4, 2026 | Thorner Benjamin Bruno | Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Mar 2, 2026 | Mar 4, 2026 | Baynes Roy D. | Chief Medical Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Mar 2, 2026 | Mar 4, 2026 | Bowie Alfred Lloyd Jr. | CFO | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Feb 6, 2026 | Feb 10, 2026 | PERLMUTTER ROGER M | Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Feb 6, 2026 | Feb 9, 2026 | Column Group IV GP, LP | 10% Owner | Buy | 100.0 | +2,117,760 | 57.82% | ✗ | $38.1M |
| Feb 4, 2026 | Feb 6, 2026 | Foresite Capital Management IV, LLC | 10% Owner | Buy | 90.0 | +55,555 | 4.40% | ✗ | $1000K |
| Feb 4, 2026 | Feb 6, 2026 | FRAZIER KENNETH C | Director | Buy | 100.0 | +111,111 | 100.00% | ✗ | $2M |
| Feb 4, 2026 | Feb 6, 2026 | Wolfe Josh | Director | Buy | 100.0 | +277,776 | 100.00% | ✗ | $5M |
| Feb 4, 2026 | Feb 6, 2026 | Lux Venture Partners V, LLC | 10% Owner | Buy | 100.0 | +277,776 | 100.00% | ✗ | $5M |
| Feb 4, 2026 | Column Group IV GP, LP | 10% Owner | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Feb 4, 2026 | Foresite Capital Management IV, LLC | 10% Owner | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Feb 4, 2026 | Bowie Alfred Lloyd Jr. | CFO | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Feb 4, 2026 | Huffines Robert Luther | Director | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Feb 4, 2026 | Wolfe Josh | Director | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Feb 4, 2026 | Meline David W | Director | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Feb 4, 2026 | Chen Leon | Director | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Feb 4, 2026 | Baynes Roy D. | Chief Medical Officer | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Feb 4, 2026 | FRAZIER KENNETH C | Director | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Feb 4, 2026 | PERLMUTTER ROGER M | Officer | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Feb 4, 2026 | Klobuchar Michael A | COO | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Feb 4, 2026 | Thorner Benjamin Bruno | Officer | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Feb 4, 2026 | Lux Venture Partners V, LLC | 10% Owner | Neutral | 52.5 | - | 0.00% | ✗ | - |