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 |
|---|---|---|---|---|---|---|
| 2026-06-12 | Carr Douglas | Officer | −Sell | 1,654 | $2.23 | $3,688 |
| 2026-06-12 | Russotti Gregory | Officer | −Sell | 2,584 | $2.23 | $5,762 |
| 2026-06-11 | Cowan Chad | Officer | −Tax w/h | 358 | $2.24 | $802 |
| 2026-06-11 | Pfeiffenberger Brent | Director,Officer | −Tax w/h | 13,849 | $2.24 | $31,022 |
| 2026-06-08 | Carr Douglas | Officer | −Sell | 249 | $2.11 | $525 |
| 2026-06-08 | Russotti Gregory | Officer | −Sell | 524 | $2.11 | $1,106 |
| 2026-06-05 | Pfeiffenberger Brent | Director,Officer | −Tax w/h | 463 | $2.13 | $986 |
| 2026-05-15 | Pfeiffenberger Brent | Director,Officer | −Tax w/h | 31,172 | $2.34 | $72,942 |
| 2026-05-04 | Carr Douglas | Officer | −Sell | 264 | $2.34 | $618 |
| 2026-04-01 | Cowan Chad | Officer | −Tax w/h | 1,365 | $2.19 | $2,989 |
| 2026-03-12 | Russotti Gregory | Officer | −Sell | 10,076 | $2.55 | $25,694 |
| 2026-03-12 | Carr Douglas | Officer | −Sell | 7,043 | $2.55 | $17,960 |
| 2026-03-11 | Cowan Chad | Officer | −Tax w/h | 1,431 | $2.73 | $3,907 |
| 2026-03-11 | Pfeiffenberger Brent | Director,Officer | −Tax w/h | 55,397 | $2.73 | $151,234 |
| 2026-03-09 | Carr Douglas | Officer | −Sell | 247 | $2.54 | $627 |
| 2026-03-09 | Russotti Gregory | Officer | −Sell | 479 | $2.54 | $1,217 |
| 2026-03-06 | Pfeiffenberger Brent | Director,Officer | −Tax w/h | 463 | $2.56 | $1,185 |
| 2026-02-13 | Pfeiffenberger Brent | Director,Officer | −Tax w/h | 31,172 | $1.75 | $54,551 |
| 2026-02-03 | Carr Douglas | Officer | −Sell | 323 | $1.82 | $588 |
| 2026-02-02 | Carr Douglas | Officer | +Grant | 110,000 | — | — |
| 2026-02-02 | Cowan Chad | Officer | +Grant | 135,000 | — | — |
| 2026-02-02 | Russotti Gregory | Officer | +Grant | 135,000 | — | — |
| 2026-02-02 | Pfeiffenberger Brent | Director,Officer | +Grant | 475,000 | — | — |
| 2026-01-02 | Cowan Chad | Officer | −Tax w/h | 1,611 | $1.00 | $1,611 |
| 2025-12-22 | Cowan Chad | Officer | +Buy | 58,060 | $0.85 | $49,351 |
| 2025-12-12 | Pfeiffenberger Brent | Director,Officer | +Buy | 52,000 | $0.58 | $30,160 |
| 2025-12-10 | Pfeiffenberger Brent | Director,Officer | −Tax w/h | 463 | $0.53 | $245 |
| 2025-12-08 | Russotti Gregory | Officer | −Sell | 526 | $0.53 | $279 |
| 2025-12-08 | Carr Douglas | Officer | −Sell | 257 | $0.53 | $136 |
| 2025-11-20 | Cowan Chad | Officer | −Sell | 5,462 | $0.50 | $2,731 |
| 2025-11-19 | Pfeiffenberger Brent | Director,Officer | +Buy | 35,000 | $0.50 | $17,500 |
| 2025-11-17 | Pfeiffenberger Brent | Director,Officer | −Sell | 32,456 | $0.45 | $14,605 |
| 2025-11-03 | Carr Douglas | Officer | −Sell | 292 | $0.59 | $172 |
| 2025-09-18 | Cowan Chad | Officer | +Grant | 762,543 | — | — |
| 2025-09-08 | Russotti Gregory | Officer | −Sell | 539 | $0.50 | $270 |
| 2025-09-08 | Pfeiffenberger Brent | Director,Officer | −Sell | 488 | $0.50 | $244 |
| 2025-09-08 | Carr Douglas | Officer | −Sell | 263 | $0.50 | $132 |
| 2025-08-14 | Pfeiffenberger Brent | Director,Officer | +Grant | 1,587,614 | — | — |
| 2025-08-04 | Carr Douglas | Officer | −Sell | 296 | $0.53 | $157 |
| 2025-06-09 | Russotti Gregory | Officer | −Sell | 526 | $0.62 | $326 |
| 2025-06-09 | Pfeiffenberger Brent | Director,Officer | −Sell | 475 | $0.62 | $295 |
| 2025-06-09 | Farid Adrienne | Officer | −Sell | 552 | $0.62 | $342 |
| 2025-06-09 | Carr Douglas | Officer | −Sell | 4,904 | $0.62 | $3,040 |
| 2025-05-16 | Pfeiffenberger Brent | Director,Officer | −Sell | 29,552 | $0.55 | $16,254 |
| 2025-05-05 | Carr Douglas | Officer | −Sell | 295 | $0.55 | $162 |
| 2025-05-05 | Farid Adrienne | Officer | −Sell | 1,024 | $0.55 | $563 |
| 2025-03-11 | Carr Douglas | Officer | +Grant | 95,625 | — | — |
| 2025-03-11 | Farid Adrienne | Officer | +Grant | 120,000 | — | — |
| 2025-03-11 | Russotti Gregory | Officer | +Grant | 120,000 | — | — |
| 2025-03-11 | Pfeiffenberger Brent | Director,Officer | +Grant | 521,500 | — | — |
| 2025-03-11 | Cowan Chad | Officer | +Grant | 19,500 | — | — |
| 2025-03-11 | Conn Morgan | Officer | +Grant | 19,500 | — | — |
| 2025-03-10 | Carr Douglas | Officer | −Sell | 1,240 | $0.62 | $769 |
| 2025-03-10 | Farid Adrienne | Officer | −Sell | 2,359 | $0.62 | $1,463 |
| 2025-03-10 | Russotti Gregory | Officer | −Sell | 2,360 | $0.62 | $1,463 |
| 2025-03-10 | Pfeiffenberger Brent | Director,Officer | −Sell | 2,235 | $0.62 | $1,386 |
| 2025-02-18 | Pfeiffenberger Brent | Director,Officer | −Sell | 34,712 | $0.78 | $27,075 |
| 2025-02-03 | Carr Douglas | Officer | −Sell | 351 | $0.78 | $274 |
| 2025-02-03 | Farid Adrienne | Officer | −Sell | 1,054 | $0.78 | $822 |
| 2024-12-04 | Pfeiffenberger Brent | Director,Officer | −Tax w/h | 243,447 | $1.44 | $350,564 |
| 2024-11-04 | Carr Douglas | Officer | −Sell | 283 | $1.23 | $348 |
| 2024-11-04 | Farid Adrienne | Officer | −Sell | 1,033 | $1.23 | $1,271 |
| 2024-11-01 | Carr Douglas | Officer | −Tax w/h | 16,611 | $1.26 | $20,930 |
| 2024-10-14 | Conn Morgan | Officer | +Grant | 60,148 | — | — |
| 2024-10-01 | Cowan Chad | Officer | +Grant | 74,376 | — | — |
| 2024-09-12 | Quimi Daphne | Director | +Buy | 5,000 | $1.53 | $7,650 |
| 2024-08-05 | Carr Douglas | Officer | −Sell | 289 | $1.83 | $529 |
| 2024-08-05 | Farid Adrienne | Officer | −Sell | 1,073 | $1.83 | $1,964 |
| 2024-07-26 | Russotti Gregory | Officer | −Sell | 586 | $2.50 | $1,465 |
| 2024-07-24 | Russotti Gregory | Officer | −Sell | 1,600 | $2.52 | $4,032 |
| 2024-07-23 | Russotti Gregory | Officer | −Sell | 200 | $2.50 | $500 |
| 2024-06-20 | Russotti Gregory | Officer | −Sell | 5,000 | $2.84 | $14,200 |
| 2024-06-07 | Carr Douglas | Officer | +Grant | 17,007 | — | — |
| 2024-06-05 | Russotti Gregory | Officer | −Sell | 5,000 | $3.00 | $15,000 |
| 2024-05-20 | Russotti Gregory | Officer | −Sell | 5,000 | $3.00 | $15,000 |
| 2024-05-06 | Russotti Gregory | Officer | −Sell | 5,000 | $3.12 | $15,600 |
| 2024-05-03 | Farid Adrienne | Officer | −Sell | 913 | $3.11 | $2,839 |
| 2024-05-03 | Carr Douglas | Officer | −Sell | 257 | $3.11 | $799 |
| 2024-04-22 | Russotti Gregory | Officer | −Sell | 5,000 | $3.10 | $15,500 |
| 2024-03-07 | Farid Adrienne | Officer | −Sell | 22,831 | $5.14 | $117,351 |
| 2024-03-07 | Farid Adrienne | Officer | +Exercise | 22,831 | $1.03 | $23,516 |
| 2024-03-07 | Levitsky Hyam | Officer | +Grant | 24,000 | — | — |
| 2024-03-07 | Farid Adrienne | Officer | +Grant | 24,000 | — | — |
| 2024-03-07 | Russotti Gregory | Officer | +Grant | 24,000 | — | — |
| 2024-03-07 | Carr Douglas | Officer | +Grant | 14,000 | — | — |
| 2024-03-07 | Pfeiffenberger Brent | Director,Officer | +Grant | 17,425 | — | — |
| 2024-03-06 | Farid Adrienne | Officer | +Exercise | 30,684 | $1.03 | $31,605 |
| 2024-03-06 | Farid Adrienne | Officer | −Sell | 30,684 | $4.96 | $152,193 |
| 2024-02-16 | Farid Adrienne | Officer | +Exercise | 485 | $1.03 | $500 |
| 2024-02-16 | Farid Adrienne | Officer | −Sell | 485 | $4.86 | $2,357 |
| 2024-02-06 | Farid Adrienne | Officer | −Sell | 1,784 | $4.49 | $8,010 |
| 2024-02-06 | Carr Douglas | Officer | −Sell | 557 | $4.49 | $2,501 |
| 2024-02-05 | Farid Adrienne | Officer | −Sell | 2,035 | $3.84 | $7,814 |
| 2024-02-05 | Carr Douglas | Officer | −Sell | 643 | $3.84 | $2,469 |
| 2023-12-04 | Pfeiffenberger Brent | Director,Officer | +Grant | 279,504 | — | — |
| 2023-12-04 | Pfeiffenberger Brent | Director,Officer | +Grant | 1,173,775 | — | — |
| 2023-11-01 | Diem Michael Craig | Officer | −Tax w/h | 20,763 | $1.49 | $30,937 |
| 2023-11-01 | Carr Douglas | Officer | −Tax w/h | 16,611 | $1.49 | $24,750 |
| 2023-05-15 | Diem Michael Craig | Officer | +Grant | 151,058 | — | — |
| 2023-05-15 | Carr Douglas | Officer | +Grant | 120,846 | — | — |
| 2023-04-03 | Borges Luis | Officer | +Exercise | 7,452 | $1.03 | $7,676 |
| 2023-03-23 | Borges Luis | Officer | +Exercise | 220,930 | $1.03 | $227,558 |
| 2023-03-23 | Borges Luis | Officer | −Sell | 15,597 | $3.55 | $55,369 |
| 2023-03-22 | Borges Luis | Officer | −Sell | 65,698 | $3.72 | $244,397 |
| 2023-03-22 | Borges Luis | Officer | +Exercise | 65,698 | $1.03 | $67,669 |
| 2023-03-21 | Borges Luis | Officer | −Sell | 63,616 | $3.77 | $239,832 |
| 2023-03-21 | Borges Luis | Officer | +Exercise | 63,616 | $1.03 | $65,524 |
| 2023-02-02 | Diem Michael Craig | Officer | +Grant | 21,875 | — | — |
| 2023-02-02 | Diem Michael Craig | Officer | +Grant | 21,875 | — | — |
| 2023-02-02 | Farid Adrienne | Officer | +Grant | 21,875 | — | — |
| 2023-02-02 | Farid Adrienne | Officer | +Grant | 21,875 | — | — |
| 2023-02-02 | Borges Luis | Officer | +Grant | 21,875 | — | — |
| 2023-02-02 | Borges Luis | Officer | +Grant | 21,875 | — | — |
| 2023-02-02 | Carr Douglas | Officer | +Grant | 7,500 | — | — |
| 2023-02-02 | Carr Douglas | Officer | +Grant | 7,500 | — | — |
| 2022-08-09 | Versant Vantage II GP, L.P. | TenPercentOwner | −Sell | 550,000 | $13.03 | $7M |
| 2022-08-09 | Versant Vantage II GP, L.P. | TenPercentOwner | −Other | 364,800 | — | — |
| 2022-01-31 | Versant Ventures VI GP-GP, LLC | TenPercentOwner | −Other | 178,996 | — | — |
| 2021-12-23 | Versant Vantage II, L.P. | TenPercentOwner | −Other | 371,004 | — | — |
| 2021-06-22 | Casdin Eli | Director | +Buy | 750,000 | $20.00 | $15M |
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.
