2026Q1
| Insider | Role (last 12 mo) | Shares held | Filed at |
|---|---|---|---|
| Third Rock Ventures IV, L.P. | — | 950,800 | Nov 5, 2025 |
| Third Rock Ventures GP IV, L.P. | — | 950,800 | Nov 5, 2025 |
| Trv Gp IV, Llc | — | 950,800 | Nov 5, 2025 |
| Third Rock Ventures V, L.P. | — | 950,800 | Nov 5, 2025 |
| Third Rock Ventures GP V, LP | — | 950,800 | Nov 5, 2025 |
| Exec date | Filing date | Insider | Role | Signal | Confidence | Shares | % of shares | Under plan? | Amount (USD) |
|---|---|---|---|---|---|---|---|---|---|
| Mar 2, 2026 | Mar 3, 2026 | Tahir Misbah | CFO | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Mar 2, 2026 | Mar 3, 2026 | Courtney Phillips | GC and Corp. Secretary | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Feb 27, 2026 | Mar 3, 2026 | Dandekar Atul | CSBO | Sell | 10.0 | -7,500 | -41.66% | ✓ | $340.7K |
| Mar 2, 2026 | Mar 3, 2026 | Bernstein Harold | President | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Mar 2, 2026 | Mar 3, 2026 | Bachrodt Amy | SVP, Finance | Sell | 11.3 | -5,000 | -27.83% | ✓ | $226K |
| Mar 2, 2026 | Mar 3, 2026 | Coloma Jason V | CEO | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Feb 2, 2026 | Feb 4, 2026 | Bernstein Harold | President | Sell | 10.0 | -15,000 | -100.00% | ✓ | $690.3K |
| Feb 2, 2026 | Feb 4, 2026 | Bachrodt Amy | SVP, Finance | Sell | 11.3 | -5,000 | -27.83% | ✓ | $230.2K |
| Jan 29, 2026 | Feb 2, 2026 | Dandekar Atul | CSBO | Sell | 10.0 | -7,500 | -41.66% | ✓ | $332K |
| Jan 22, 2026 | Jan 26, 2026 | Bachrodt Amy | SVP, Finance | Sell | 11.3 | -5,000 | -27.83% | ✓ | $227.6K |
| Jan 7, 2026 | Jan 9, 2026 | Bernstein Harold | President | Sell | 8.8 | -25,156 | -100.00% | ✓ | $1M |
| Jan 6, 2026 | Jan 8, 2026 | Sohn Catherine A. | Director | Sell | 17.5 | -29,413 | -100.00% | ✗ | $1.1M |
| Jan 2, 2026 | Jan 6, 2026 | Bernstein Harold | President | Sell | 11.3 | -4,844 | -100.00% | ✓ | $195.7K |
| Jan 2, 2026 | Jan 6, 2026 | Bachrodt Amy | SVP, Finance | Sell | 11.3 | -5,000 | -27.83% | ✓ | $195.8K |
| Dec 29, 2025 | Dec 31, 2025 | Dandekar Atul | CSBO | Sell | 8.8 | -72,500 | -65.88% | ✓ | $2.9M |
| Dec 29, 2025 | Dec 31, 2025 | Bernstein Harold | President | Sell | 8.8 | -45,000 | -100.00% | ✓ | $1.8M |
| Dec 29, 2025 | Dec 31, 2025 | Bachrodt Amy | SVP, Finance | Sell | 10.0 | -15,000 | -27.53% | ✓ | $606.2K |
| Nov 19, 2025 | Nov 21, 2025 | HOMCY CHARLES J | Director | Neutral | 82.5 | +1,489 | 4.02% | ✗ | - |
| Nov 4, 2025 | Nov 5, 2025 | Third Rock Ventures IV, L.P. | 10% Owner | Neutral | 27.5 | -1,600,000 | -22.78% | ✗ | - |
| Oct 23, 2025 | Oct 27, 2025 | HOMCY CHARLES J | Director | Neutral | 27.5 | -28,423 | -43.41% | ✗ | - |
| Oct 6, 2025 | Oct 7, 2025 | Hoppenot Herve | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Oct 7, 2025 | Hoppenot Herve | Director | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Sep 22, 2025 | Sep 24, 2025 | Courtney Phillips | GC and Corp. Secretary | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Sep 22, 2025 | Sep 24, 2025 | Dandekar Atul | CSBO | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Sep 22, 2025 | Sep 24, 2025 | Coloma Jason V | CEO | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Sep 22, 2025 | Sep 24, 2025 | Bernstein Harold | President | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Sep 22, 2025 | Sep 24, 2025 | Bachrodt Amy | SVP, Finance | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Sep 22, 2025 | Sep 24, 2025 | SPIEGELMAN DANIEL K | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Sep 22, 2025 | Sep 24, 2025 | Sohn Catherine A. | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Sep 22, 2025 | Sep 24, 2025 | SCHELLER RICHARD H | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Sep 22, 2025 | Sep 24, 2025 | Lim Jonathan E | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Sep 22, 2025 | Sep 24, 2025 | Kathiresan Sekar | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Sep 22, 2025 | Sep 24, 2025 | HOMCY CHARLES J | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Sep 22, 2025 | Sep 24, 2025 | Exter Neil | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Sep 22, 2025 | Sep 24, 2025 | Andrews Nancy C | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Sep 15, 2025 | Sep 16, 2025 | SCHELLER RICHARD H | Director | Sell | 20.0 | -20,744 | -100.00% | ✗ | $464K |
| Sep 2, 2025 | Sep 2, 2025 | Tahir Misbah | CFO | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Sep 2, 2025 | Tahir Misbah | CFO | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Aug 17, 2025 | Aug 19, 2025 | Exter Neil | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Feb 3, 2025 | Feb 4, 2025 | Third Rock Ventures IV, L.P. | 10% Owner | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Feb 3, 2025 | Feb 4, 2025 | Lim Jonathan E | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Feb 3, 2025 | Feb 4, 2025 | HOMCY CHARLES J | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jan 30, 2025 | Third Rock Ventures IV, L.P. | 10% Owner | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Jan 30, 2025 | ARCH Venture Partners X, LLC | 10% Owner | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Jan 30, 2025 | Tong Jeffrey K | Director | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Jan 30, 2025 | SPIEGELMAN DANIEL K | Director | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Jan 30, 2025 | Sohn Catherine A. | Director | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Jan 30, 2025 | SCHELLER RICHARD H | Director | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Jan 30, 2025 | Lim Jonathan E | Director | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Jan 30, 2025 | Kathiresan Sekar | Director | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Jan 30, 2025 | HOMCY CHARLES J | Director | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Jan 30, 2025 | Exter Neil | Director | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Jan 30, 2025 | Colowick Alan | Director | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Jan 30, 2025 | Brush James | Director | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Jan 30, 2025 | Andrews Nancy C | Director | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Jan 30, 2025 | Courtney Phillips | GC and Corp. Secretary | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Jan 30, 2025 | Bernstein Harold | President | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Jan 30, 2025 | Bachrodt Amy | SVP, Finance | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Jan 30, 2025 | Dandekar Atul | CSBO | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Jan 30, 2025 | Coloma Jason V | CEO | Neutral | 52.5 | - | 0.00% | ✗ | - |