2026Q1
| Insider | Role (last 12 mo) | Shares held | Filed at |
|---|---|---|---|
| Crandell Keith | — | 10,668,749 | Aug 12, 2019 |
| Bybee Clinton | — | 10,668,749 | Aug 12, 2019 |
| ARCH Venture Fund VIII, L.P. | — | 10,668,749 | Aug 12, 2019 |
| ARCH Venture Partners VIII, LLC | — | 10,668,749 | Aug 12, 2019 |
| ARCH Venture Partners VIII, L.P. | — | 10,668,749 | Aug 12, 2019 |
| Exec date | Filing date | Insider | Role | Signal | Confidence | Shares | % of shares | Under plan? | Amount (USD) |
|---|---|---|---|---|---|---|---|---|---|
| Jan 6, 2026 | Jan 8, 2026 | Watts Ryan J. | CEO | Sell | 20.0 | -35,198 | -1.42% | ✗ | $580.8K |
| Jan 6, 2026 | Jan 8, 2026 | Schuth Alexander O. | COFO and Secretary | Sell | 20.0 | -17,218 | -2.09% | ✗ | $284.1K |
| Jan 3, 2026 | Jan 5, 2026 | Schuth Alexander O. | COFO and Secretary | Neutral | 85.0 | +57,700 | 7.53% | ✗ | - |
| Jan 3, 2026 | Jan 5, 2026 | Watts Ryan J. | CEO | Neutral | 82.5 | +78,960 | 3.28% | ✗ | - |
| Dec 11, 2025 | Dec 15, 2025 | BAKER BROS. ADVISORS LP | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Nov 4, 2025 | Nov 6, 2025 | Van Hauwermeiren Timothy | Director | Neutral | 90.0 | +10,632 | 100.00% | ✗ | - |
| Nov 6, 2025 | Van Hauwermeiren Timothy | Director | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Sep 3, 2025 | Sep 5, 2025 | Watts Ryan J. | CEO | Neutral | 27.5 | -50,000 | -2.04% | ✗ | - |
| Aug 12, 2025 | Aug 14, 2025 | Schuth Alexander O. | COFO and Secretary | Sell | 43.8 | -2,937 | -0.38% | ✗ | $39.9K |
| Aug 12, 2025 | Aug 14, 2025 | Ho Carole | Chief Medical Officer | Sell | 47.5 | -3,743 | -0.87% | ✓ | $51.7K |
| Aug 5, 2025 | Aug 7, 2025 | Ho Carole | Chief Medical Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jul 9, 2025 | Jul 11, 2025 | Watts Ryan J. | CEO | Sell | 13.8 | -495,282 | -16.78% | ✓ | $7.4M |
| Jun 3, 2025 | Jun 5, 2025 | BAKER BROS. ADVISORS LP | Director | Neutral | 67.5 | +21,130 | 0.57% | ✗ | - |
| Jun 5, 2025 | BAKER BROS. ADVISORS LP | Director | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Jun 5, 2025 | BAKER JULIAN | Director | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Jun 3, 2025 | Jun 5, 2025 | Cook Jennifer E. | Director | Neutral | 90.0 | +6,037 | 30.13% | ✗ | - |
| Jun 3, 2025 | Jun 5, 2025 | FLATLEY JAY T | Director | Neutral | 77.5 | +6,037 | 1.74% | ✗ | - |
| Jun 3, 2025 | Jun 5, 2025 | Klein Peter S | Director | Neutral | 90.0 | +6,037 | 28.08% | ✗ | - |
| Jun 3, 2025 | Jun 5, 2025 | Krognes Steve E. | Director | Neutral | 67.5 | +6,037 | 0.75% | ✗ | - |
| Jun 3, 2025 | Jun 5, 2025 | Schenkein David P | Director | Neutral | 85.0 | +6,037 | 9.05% | ✗ | - |
| Jun 3, 2025 | Jun 5, 2025 | Thornberry Nancy | Director | Neutral | 90.0 | +6,037 | 32.32% | ✗ | - |
| Jun 3, 2025 | Jun 5, 2025 | Tessier-Lavigne Marc | Director | Neutral | 60.0 | +6,037 | 0.29% | ✗ | - |
| Jan 6, 2025 | Jan 8, 2025 | Ho Carole | Chief Medical Officer | Sell | 20.0 | -15,162 | -3.80% | ✗ | $308.3K |
| Jan 6, 2025 | Jan 8, 2025 | Schuth Alexander O. | COFO and Secretary | Sell | 20.0 | -15,162 | -1.94% | ✗ | $308.3K |
| Jan 6, 2025 | Jan 8, 2025 | Watts Ryan J. | CEO | Sell | 20.0 | -36,916 | -1.48% | ✗ | $751K |
| Jan 7, 2025 | Jan 8, 2025 | Krognes Steve E. | Director | Sell | 40.0 | -3,339 | -0.41% | ✗ | $69.5K |
| Jan 3, 2025 | Jan 7, 2025 | Watts Ryan J. | CEO | Neutral | 77.5 | +54,180 | 2.22% | ✗ | - |
| Jan 3, 2025 | Jan 7, 2025 | Schuth Alexander O. | COFO and Secretary | Neutral | 85.0 | +54,180 | 7.43% | ✗ | - |
| Jan 3, 2025 | Jan 7, 2025 | Ho Carole | Chief Medical Officer | Neutral | 90.0 | +54,180 | 15.71% | ✗ | - |
| Dec 31, 2024 | Jan 3, 2025 | Krognes Steve E. | Director | Sell | 35.0 | -30,000 | -3.57% | ✓ | $607.5K |
| Jan 2, 2025 | Jan 3, 2025 | SATO VICKI L | Director | Sell | 41.3 | -3,080 | -2.77% | ✓ | $64.4K |
| Dec 27, 2024 | Dec 31, 2024 | Schuth Alexander O. | COFO and Secretary | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Nov 25, 2024 | Nov 27, 2024 | Ho Carole | Chief Medical Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Nov 22, 2024 | Nov 26, 2024 | Schuth Alexander O. | COFO and Secretary | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Nov 11, 2024 | Nov 13, 2024 | Schenkein David P | Director | Sell | 5.0 | -59,441 | -47.13% | ✓ | $1.9M |
| Nov 7, 2024 | Nov 12, 2024 | Schuth Alexander O. | COFO and Secretary | Sell | 38.8 | -15,558 | -2.17% | ✓ | $465.3K |
| Nov 7, 2024 | Nov 12, 2024 | SATO VICKI L | Director | Sell | 51.3 | -1,020 | -0.91% | ✓ | $30.6K |
| Nov 1, 2024 | Nov 5, 2024 | SATO VICKI L | Director | Sell | 41.3 | -3,080 | -2.67% | ✓ | $83.4K |
| Oct 18, 2024 | Oct 22, 2024 | Watts Ryan J. | CEO | Sell | 40.0 | -40,000 | -1.61% | ✓ | $1.1M |
| Sep 30, 2024 | Oct 2, 2024 | Krognes Steve E. | Director | Sell | 35.0 | -30,000 | -3.44% | ✓ | $870.9K |
| Sep 13, 2024 | Sep 16, 2024 | SATO VICKI L | Director | Sell | 51.3 | -1,020 | -0.88% | ✓ | $30.6K |
| Sep 3, 2024 | Sep 4, 2024 | SATO VICKI L | Director | Sell | 41.3 | -3,080 | -2.58% | ✓ | $77K |
| Aug 20, 2024 | Aug 22, 2024 | Watts Ryan J. | CEO | Sell | 47.5 | -2,260 | -0.09% | ✗ | $53.8K |
| Aug 20, 2024 | Aug 22, 2024 | Krognes Steve E. | Director | Sell | 51.3 | -1,727 | -0.20% | ✗ | $41.1K |
| Aug 20, 2024 | Aug 22, 2024 | Schuth Alexander O. | COFO and Secretary | Sell | 45.0 | -8,353 | -1.18% | ✓ | $200.4K |
| Aug 20, 2024 | Aug 22, 2024 | Ho Carole | Chief Medical Officer | Sell | 30.0 | -22,458 | -6.43% | ✓ | $549.9K |
| Aug 13, 2024 | Aug 15, 2024 | Schuth Alexander O. | COFO and Secretary | Sell | 40.0 | -2,272 | -0.32% | ✗ | $52K |
| Aug 13, 2024 | Aug 15, 2024 | Ho Carole | Chief Medical Officer | Sell | 32.5 | -2,337 | -0.66% | ✗ | $53.5K |
| Jun 13, 2024 | Jul 3, 2024 | Krognes Steve E. | Director | Sell | 35.0 | -30,688 | -3.10% | ✓ | $678.7K |
| Jul 1, 2024 | Jul 3, 2024 | SATO VICKI L | Director | Sell | 41.3 | -3,080 | -2.52% | ✓ | $68.2K |
| Jun 6, 2024 | Jun 10, 2024 | Cook Jennifer E. | Director | Sell | 36.3 | -1,458 | -6.78% | ✓ | $31.7K |
| May 31, 2024 | Jun 4, 2024 | Krognes Steve E. | Director | Neutral | 67.5 | +5,967 | 0.66% | ✗ | - |
| May 31, 2024 | Jun 4, 2024 | Thornberry Nancy | Director | Neutral | 90.0 | +5,967 | 46.94% | ✗ | - |
| May 31, 2024 | Jun 4, 2024 | Tessier-Lavigne Marc | Director | Neutral | 60.0 | +5,967 | 0.28% | ✗ | - |
| May 31, 2024 | Jun 4, 2024 | SATO VICKI L | Director | Neutral | 85.0 | +5,967 | 5.13% | ✗ | - |
| May 31, 2024 | Jun 4, 2024 | Cook Jennifer E. | Director | Neutral | 90.0 | +5,967 | 38.42% | ✗ | - |
| May 31, 2024 | Jun 4, 2024 | Schenkein David P | Director | Neutral | 85.0 | +5,967 | 8.17% | ✗ | - |
| May 31, 2024 | Jun 4, 2024 | FLATLEY JAY T | Director | Neutral | 77.5 | +5,967 | 1.75% | ✗ | - |
| May 31, 2024 | Jun 4, 2024 | Harris Erik | Director | Neutral | 90.0 | +5,967 | 53.83% | ✗ | - |
| May 31, 2024 | Jun 4, 2024 | Klein Peter S | Director | Neutral | 90.0 | +5,967 | 38.42% | ✗ | - |
| May 15, 2024 | May 17, 2024 | SATO VICKI L | Director | Sell | 48.8 | -1,674 | -1.42% | ✓ | $34.1K |
| Apr 15, 2024 | Apr 17, 2024 | SATO VICKI L | Director | Sell | 48.8 | -1,666 | -1.39% | ✓ | $30.5K |
| Apr 1, 2024 | Apr 2, 2024 | Krognes Steve E. | Director | Sell | 23.8 | -92,500 | -9.34% | ✓ | $1.9M |
| Mar 29, 2024 | Mar 29, 2024 | Watts Ryan J. | CEO | Neutral | 27.5 | -40,000 | -1.61% | ✗ | - |
| Mar 15, 2024 | Mar 19, 2024 | SATO VICKI L | Director | Sell | 48.8 | -1,666 | -1.37% | ✓ | $33.5K |
| Feb 15, 2024 | Feb 20, 2024 | SATO VICKI L | Director | Sell | 48.8 | -1,666 | -1.35% | ✓ | $30.6K |
| Feb 13, 2024 | Feb 15, 2024 | Krognes Steve E. | Director | Sell | 43.8 | -2,750 | -0.28% | ✗ | $47.5K |
| Feb 13, 2024 | Feb 15, 2024 | Watts Ryan J. | CEO | Sell | 40.0 | -9,589 | -0.39% | ✗ | $165.8K |
| Feb 13, 2024 | Feb 15, 2024 | Ho Carole | Chief Medical Officer | Sell | 45.0 | -4,189 | -1.18% | ✓ | $73.1K |
| Feb 13, 2024 | Feb 15, 2024 | Schuth Alexander O. | COFO and Secretary | Sell | 35.0 | -22,844 | -3.11% | ✓ | $402.4K |
| Feb 8, 2024 | Feb 12, 2024 | Schuth Alexander O. | COFO and Secretary | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jan 16, 2024 | Jan 18, 2024 | SATO VICKI L | Director | Sell | 48.8 | -1,666 | -1.34% | ✓ | $30.7K |
| Jan 10, 2024 | Jan 12, 2024 | Ho Carole | Chief Medical Officer | Sell | 45.0 | -4,668 | -1.29% | ✓ | $88.8K |
| Jan 9, 2024 | Jan 11, 2024 | Watts Ryan J. | CEO | Sell | 40.0 | -7,818 | -0.31% | ✗ | $154.6K |
| Jan 5, 2024 | Jan 9, 2024 | Ho Carole | Chief Medical Officer | Sell | 22.5 | -9,972 | -2.88% | ✗ | $193.8K |
| Jan 5, 2024 | Jan 9, 2024 | Krognes Steve E. | Director | Sell | 40.0 | -3,208 | -0.32% | ✗ | $62.3K |
| Jan 5, 2024 | Jan 9, 2024 | Schuth Alexander O. | COFO and Secretary | Sell | 22.5 | -9,972 | -1.44% | ✗ | $193.8K |
| Jan 5, 2024 | Jan 9, 2024 | Watts Ryan J. | CEO | Sell | 30.0 | -17,483 | -0.69% | ✗ | $339.7K |
| Jan 3, 2024 | Jan 5, 2024 | Schuth Alexander O. | COFO and Secretary | Neutral | 85.0 | +53,720 | 8.39% | ✗ | - |
| Jan 3, 2024 | Jan 5, 2024 | Ho Carole | Chief Medical Officer | Neutral | 90.0 | +53,720 | 16.95% | ✗ | - |
| Jan 3, 2024 | Jan 5, 2024 | Watts Ryan J. | CEO | Neutral | 82.5 | +89,520 | 3.69% | ✗ | - |
| Dec 15, 2023 | Dec 18, 2023 | SATO VICKI L | Director | Sell | 48.8 | -1,666 | -1.32% | ✓ | $39K |
| Nov 15, 2023 | Nov 16, 2023 | SATO VICKI L | Director | Sell | 48.8 | -1,666 | -1.30% | ✓ | $31.9K |
| Oct 16, 2023 | Oct 18, 2023 | SATO VICKI L | Director | Sell | 48.8 | -1,666 | -1.28% | ✓ | $34.4K |
| Sep 15, 2023 | Sep 19, 2023 | SATO VICKI L | Director | Sell | 48.8 | -1,666 | -1.27% | ✓ | $39.3K |
| Aug 23, 2023 | Aug 25, 2023 | Schuth Alexander O. | COFO and Secretary | Sell | 48.8 | -2,522 | -0.39% | ✓ | $58.4K |
| Aug 23, 2023 | Aug 25, 2023 | Ho Carole | Chief Medical Officer | Sell | 47.5 | -2,522 | -0.86% | ✓ | $58.6K |
| Aug 21, 2023 | Aug 23, 2023 | Ho Carole | Chief Medical Officer | Sell | 32.5 | -2,478 | -0.83% | ✗ | $56K |
| Aug 21, 2023 | Aug 23, 2023 | Schuth Alexander O. | COFO and Secretary | Sell | 40.0 | -2,478 | -0.38% | ✗ | $56K |
| Aug 21, 2023 | Aug 23, 2023 | Watts Ryan J. | CEO | Sell | 47.5 | -2,309 | -0.10% | ✗ | $52.2K |
| Aug 21, 2023 | Aug 23, 2023 | Krognes Steve E. | Director | Sell | 51.3 | -1,419 | -0.14% | ✗ | $32.1K |
| Aug 15, 2023 | Aug 17, 2023 | SATO VICKI L | Director | Sell | 48.8 | -1,666 | -1.25% | ✓ | $40.5K |
| Aug 14, 2023 | Aug 16, 2023 | Ho Carole | Chief Medical Officer | Sell | 47.5 | -2,768 | -0.92% | ✓ | $65.9K |
| Aug 14, 2023 | Aug 16, 2023 | Schuth Alexander O. | COFO and Secretary | Sell | 48.8 | -2,772 | -0.43% | ✓ | $65.6K |
| Aug 10, 2023 | Aug 14, 2023 | Watts Ryan J. | CEO | Sell | 50.0 | -2,526 | -0.10% | ✓ | $63.2K |
| Aug 10, 2023 | Aug 14, 2023 | Ho Carole | Chief Medical Officer | Sell | 32.5 | -2,857 | -0.94% | ✗ | $69K |
| Aug 10, 2023 | Aug 14, 2023 | Schuth Alexander O. | COFO and Secretary | Sell | 40.0 | -2,853 | -0.44% | ✗ | $69K |
| Jul 17, 2023 | Jul 19, 2023 | Schuth Alexander O. | COFO and Secretary | Sell | 38.8 | -19,702 | -2.94% | ✓ | $587.2K |
| Jul 17, 2023 | Jul 19, 2023 | SATO VICKI L | Director | Sell | 48.8 | -1,666 | -1.24% | ✓ | $49.3K |
| Jun 28, 2023 | Jun 30, 2023 | SATO VICKI L | Director | Sell | 48.8 | -1,666 | -1.22% | ✓ | $49.7K |