2026Q1
| Insider | Role (last 12 mo) | Shares held | Filed at |
|---|---|---|---|
| Bishop Hans Edgar | — | 4,685,614 | Jun 17, 2024 |
| Klausner Richard | Director | 3,811,199 | May 19, 2025 |
| Nelsen Robert | — | 1,820,634 | Jul 29, 2025 |
| Crandell Keith | — | 1,820,634 | Jul 29, 2025 |
| ARCH Venture Partners IX, LLC | — | 1,820,634 | Jul 29, 2025 |
| Exec date | Filing date | Insider | Role | Signal | Confidence | Shares | % of shares | Under plan? | Amount (USD) |
|---|---|---|---|---|---|---|---|---|---|
| Feb 11, 2026 | Feb 12, 2026 | Seely Lynn | CEO | Sell | 42.5 | -7,455 | -9.12% | ✗ | $174.4K |
| Feb 11, 2026 | Feb 12, 2026 | Hill Stephen J. | COO | Sell | 46.3 | -1,236 | -6.49% | ✗ | $28.9K |
| Feb 11, 2026 | Feb 12, 2026 | Lee Gary K. | Chief Scientific Officer | Sell | 46.3 | -1,671 | -8.98% | ✗ | $39.1K |
| Feb 9, 2026 | Feb 11, 2026 | Hill Stephen J. | COO | Sell | 90.0 | +3,891 | 25.70% | ✗ | $2.5K |
| Feb 9, 2026 | Feb 11, 2026 | Lee Gary K. | Chief Scientific Officer | Sell | 90.0 | +3,853 | 26.11% | ✗ | $3.4K |
| Feb 9, 2026 | Feb 11, 2026 | Seely Lynn | CEO | Sell | 91.3 | +19,562 | 31.47% | ✗ | $10.1K |
| Feb 10, 2026 | Feb 11, 2026 | Meltz Mark A | General Counsel | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Feb 10, 2026 | Feb 11, 2026 | Bulis Veronica Sanchez | VP, Corporate Controller | Sell | 90.0 | +8,496 | 118.97% | ✗ | $5.9K |
| Feb 10, 2026 | Feb 11, 2026 | Shook David | Chief Medical Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Dec 24, 2025 | Jan 6, 2026 | Bulis Veronica Sanchez | VP, Corporate Controller | Sell | 22.5 | -2,072 | -22.49% | ✗ | $74.2K |
| Nov 10, 2025 | Nov 12, 2025 | Seely Lynn | CEO | Sell | 50.0 | -412 | -0.61% | ✗ | $6.6K |
| Nov 10, 2025 | Nov 12, 2025 | Bulis Veronica Sanchez | VP, Corporate Controller | Sell | 47.5 | -239 | -2.53% | ✗ | $3.8K |
| Nov 10, 2025 | Nov 12, 2025 | Lee Gary K. | Chief Scientific Officer | Sell | 50.0 | -138 | -0.89% | ✗ | $2.2K |
| Nov 10, 2025 | Nov 12, 2025 | Hill Stephen J. | COO | Sell | 50.0 | -95 | -0.60% | ✗ | $1.5K |
| Nov 10, 2025 | Bulis Veronica Sanchez | VP, Corporate Controller | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Oct 27, 2025 | Oct 29, 2025 | Hill Stephen J. | COO | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Oct 27, 2025 | Oct 29, 2025 | Lee Gary K. | Chief Scientific Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Oct 27, 2025 | Oct 29, 2025 | Seely Lynn | CEO | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Aug 20, 2025 | Aug 22, 2025 | Seely Lynn | CEO | Sell | 95.0 | +32,743 | 94.01% | ✗ | $76.5K |
| Aug 20, 2025 | Aug 22, 2025 | Hill Stephen J. | COO | Sell | 91.3 | +6,996 | 79.06% | ✗ | $10.6K |
| Aug 20, 2025 | Aug 22, 2025 | Newton Charles W. | CFO | Sell | 91.3 | +6,547 | 34.90% | ✗ | $15.3K |
| Aug 20, 2025 | Aug 22, 2025 | Lee Gary K. | Chief Scientific Officer | Sell | 91.3 | +6,547 | 73.09% | ✗ | $15.3K |
| Aug 11, 2025 | Aug 13, 2025 | Seely Lynn | CEO | Sell | 47.5 | -797 | -2.24% | ✗ | $8.3K |
| Aug 11, 2025 | Aug 13, 2025 | Hill Stephen J. | COO | Sell | 47.5 | -185 | -2.05% | ✗ | $1.9K |
| Aug 11, 2025 | Aug 13, 2025 | Lee Gary K. | Chief Scientific Officer | Sell | 47.5 | -267 | -2.89% | ✗ | $2.8K |
| Aug 11, 2025 | Aug 13, 2025 | Newton Charles W. | CFO | Sell | 47.5 | -267 | -1.40% | ✗ | $2.8K |
| Jul 29, 2025 | ARCH Venture Partners IX, LLC | 10% Owner | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Jul 29, 2025 | ARCH Venture Fund XIII, L.P. | 10% Owner | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Jun 9, 2025 | Jun 11, 2025 | Bachleda Mark | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 9, 2025 | Jun 11, 2025 | Meltz Mark A | General Counsel | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 9, 2025 | Jun 11, 2025 | Shook David | Chief Medical Officer | Neutral | 90.0 | +21,900 | 100.00% | ✗ | - |
| Jun 11, 2025 | Bachleda Mark | Director | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Jun 11, 2025 | Meltz Mark A | General Counsel | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Jun 11, 2025 | Shook David | Chief Medical Officer | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| May 15, 2025 | May 19, 2025 | Klausner Richard | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| May 15, 2025 | May 19, 2025 | RIEFLIN WILLIAM JL | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| May 15, 2025 | May 19, 2025 | FRIEDMAN CATHY | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| May 15, 2025 | May 19, 2025 | BRAWLEY OTIS W | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| May 15, 2025 | May 19, 2025 | NABEL ELIZABETH G | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| May 15, 2025 | May 19, 2025 | Ramachandra Sumant | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Mar 31, 2025 | Apr 2, 2025 | BRAWLEY OTIS W | Director | Buy | 91.3 | +35,640 | 100.00% | ✗ | $20K |
| Mar 21, 2025 | Mar 25, 2025 | Ramachandra Sumant | Director | Buy | 95.0 | +200,000 | 100.00% | ✗ | $115.2K |
| Mar 14, 2025 | Mar 18, 2025 | Klausner Richard | Director | Buy | 87.5 | +158,000 | 4.32% | ✗ | $94.9K |
| Mar 17, 2025 | Mar 18, 2025 | Newton Charles W. | CFO | Buy | 95.0 | +200,000 | 115.79% | ✗ | $111.6K |
| Mar 14, 2025 | Mar 18, 2025 | Seely Lynn | CEO | Buy | 95.0 | +175,000 | 32.56% | ✗ | $106.2K |
| Feb 10, 2025 | Feb 26, 2025 | Lang Matthew | Chief Business Officer | Neutral | 90.0 | +112,500 | 225.00% | ✗ | - |
| Feb 10, 2025 | Feb 26, 2025 | Seely Lynn | CEO | Neutral | 90.0 | +337,500 | 168.75% | ✗ | - |
| Feb 10, 2025 | Feb 26, 2025 | Hill Stephen J. | COO | Neutral | 90.0 | +112,500 | 186.26% | ✗ | - |
| Feb 10, 2025 | Feb 26, 2025 | Newton Charles W. | CFO | Neutral | 90.0 | +112,500 | 186.80% | ✗ | - |
| Feb 10, 2025 | Feb 26, 2025 | Lee Gary K. | Chief Scientific Officer | Neutral | 90.0 | +112,500 | 175.24% | ✗ | - |
| Oct 31, 2024 | Nov 1, 2024 | Ramachandra Sumant | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Nov 1, 2024 | Ramachandra Sumant | Director | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Jun 14, 2024 | Jun 17, 2024 | NELSEN ROBERT | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 14, 2024 | Jun 17, 2024 | Bishop Hans Edgar | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 14, 2024 | Jun 17, 2024 | Klausner Richard | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 14, 2024 | Jun 17, 2024 | RIEFLIN WILLIAM JL | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 14, 2024 | Jun 17, 2024 | NABEL ELIZABETH G | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 14, 2024 | Jun 17, 2024 | BRAWLEY OTIS W | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 14, 2024 | Jun 17, 2024 | FRIEDMAN CATHY | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Feb 9, 2024 | Feb 13, 2024 | Lang Matthew | Chief Business Officer | Neutral | 90.0 | +50,000 | 100.00% | ✗ | - |
| Feb 9, 2024 | Feb 13, 2024 | Hill Stephen J. | COO | Neutral | 90.0 | +40,000 | 448.03% | ✗ | - |
| Feb 9, 2024 | Feb 13, 2024 | Lee Gary K. | Chief Scientific Officer | Neutral | 90.0 | +40,000 | 314.96% | ✗ | - |
| Feb 9, 2024 | Feb 13, 2024 | Newton Charles W. | CFO | Neutral | 90.0 | +40,000 | 458.24% | ✗ | - |
| Feb 9, 2024 | Feb 13, 2024 | Seely Lynn | CEO | Neutral | 90.0 | +200,000 | 100.00% | ✗ | - |
| Nov 16, 2023 | Nov 20, 2023 | Newton Charles W. | CFO | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Nov 16, 2023 | Nov 20, 2023 | Lee Gary K. | Chief Scientific Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Nov 16, 2023 | Nov 20, 2023 | Seely Lynn | CEO | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Nov 16, 2023 | Nov 20, 2023 | Hill Stephen J. | Chief Technical Ops. Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Sep 8, 2023 | Sep 8, 2023 | Klausner Richard | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Sep 8, 2023 | Sep 8, 2023 | RIEFLIN WILLIAM JL | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Sep 8, 2023 | Sep 8, 2023 | FRIEDMAN CATHY | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Sep 8, 2023 | Sep 8, 2023 | NELSEN ROBERT | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Sep 8, 2023 | Sep 8, 2023 | NABEL ELIZABETH G | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Sep 8, 2023 | Sep 8, 2023 | BRAWLEY OTIS W | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Sep 8, 2023 | Sep 8, 2023 | Bishop Hans Edgar | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Aug 15, 2023 | Aug 17, 2023 | Klausner Richard | Director | Sell | 22.5 | -58,020 | -1.47% | ✗ | $132.3K |
| Aug 10, 2023 | Aug 11, 2023 | Lang Matthew | Chief Business Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jul 20, 2023 | Lang Matthew | Chief Business Officer | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Jun 16, 2023 | Jun 20, 2023 | RIEFLIN WILLIAM JL | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 16, 2023 | Jun 20, 2023 | NELSEN ROBERT | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 16, 2023 | Jun 20, 2023 | NABEL ELIZABETH G | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 16, 2023 | Jun 20, 2023 | Klausner Richard | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 16, 2023 | Jun 20, 2023 | FRIEDMAN CATHY | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 16, 2023 | Jun 20, 2023 | BRAWLEY OTIS W | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 16, 2023 | Jun 20, 2023 | Bishop Hans Edgar | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Feb 24, 2023 | Feb 28, 2023 | Hill Stephen J. | Chief Technical Ops. Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Feb 24, 2023 | Feb 28, 2023 | Albertson Tina M. | Chief Medical Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Feb 24, 2023 | Feb 28, 2023 | Lee Gary K. | Chief Scientific Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Feb 24, 2023 | Feb 28, 2023 | Thompson Rahsaan | Chief Legal Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Feb 24, 2023 | Feb 28, 2023 | Newton Charles W. | CFO | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Dec 15, 2022 | Dec 19, 2022 | Seely Lynn | CEO | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Oct 10, 2022 | Oct 12, 2022 | Thompson Rahsaan | Chief Legal Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Oct 3, 2022 | Thompson Rahsaan | Chief Legal Officer | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Sep 23, 2022 | Sep 27, 2022 | Klausner Richard | Director | Sell | 40.0 | -11,100 | -0.28% | ✗ | $71K |
| Sep 8, 2022 | Sep 9, 2022 | Bishop Hans Edgar | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 8, 2022 | Jun 10, 2022 | RIEFLIN WILLIAM JL | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 8, 2022 | Jun 10, 2022 | NELSEN ROBERT | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 8, 2022 | Jun 10, 2022 | Seely Lynn | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 8, 2022 | Jun 10, 2022 | NABEL ELIZABETH G | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 8, 2022 | Jun 10, 2022 | BRAWLEY OTIS W | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |