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 |
|---|---|---|---|---|---|---|
| 2025-08-01 | GILLIS STEVEN | TenPercentOwner | +Buy | 3,030,300 | $3.30 | $10M |
| 2025-08-01 | ARCH Venture Fund XII, L.P. | TenPercentOwner | +Buy | 3,030,300 | $3.30 | $10M |
| 2025-08-01 | NELSEN ROBERT | Director,TenPercentOwner | +Buy | 3,030,300 | $3.30 | $10M |
| 2025-08-01 | Alphabet Inc. | TenPercentOwner | +Buy | 1,500,000 | $3.30 | $5M |
| 2025-06-30 | Liu David R. | TenPercentOwner | +Buy | 21,000 | $2.52 | $52,920 |
| 2025-06-23 | Liu David R. | TenPercentOwner | +Buy | 21,000 | $2.16 | $45,360 |
| 2025-06-16 | Liu David R. | TenPercentOwner | +Buy | 21,000 | $1.49 | $31,290 |
| 2025-06-11 | Liu David R. | TenPercentOwner | +Buy | 21,000 | $1.60 | $33,600 |
| 2025-05-21 | Reine Allan | Director,Officer | +Buy | 125,000 | $1.18 | $147,500 |
| 2025-05-21 | LEE ANN L. | Officer | +Buy | 100,000 | $1.13 | $113,000 |
| 2025-05-20 | Brudnick Richard | Officer | +Buy | 20,000 | $1.19 | $23,800 |
| 2024-10-08 | Gottesdiener Keith Michael | Director,Officer | +Gift | 226,925 | — | — |
| 2024-10-08 | Gottesdiener Keith Michael | Director,Officer | −Gift | 226,925 | — | — |
| 2024-06-05 | Gottesdiener Keith Michael | Director,Officer | −Gift | 250,000 | — | — |
| 2024-06-05 | Gottesdiener Keith Michael | Director,Officer | +Gift | 250,000 | — | — |
| 2024-02-15 | ARCH Venture Partners X, L.P. | TenPercentOwner | +Buy | 3,200,000 | $6.25 | $20M |
| 2024-02-15 | ARCH Venture Partners XII, LLC | TenPercentOwner | +Buy | 3,200,000 | $6.25 | $20M |
| 2024-02-15 | NELSEN ROBERT | Director,TenPercentOwner | +Buy | 3,200,000 | $6.25 | $20M |
| 2023-11-11 | Gottesdiener Keith Michael | Director,Officer | −Gift | 5,000 | — | — |
| 2023-11-11 | Gottesdiener Keith Michael | Director,Officer | −Gift | 7,500 | — | — |
| 2023-07-21 | Liu David R. | TenPercentOwner | −Gift | 1,000,000 | — | — |
| 2023-07-21 | Liu David R. | TenPercentOwner | −Gift | 1,000,000 | — | — |
| 2023-06-21 | GV 2021 GP, L.P. | TenPercentOwner | −Sell | 19,003 | $14.97 | $284,475 |
| 2023-06-21 | GV 2021 GP, L.P. | TenPercentOwner | −Other | 19,003 | — | — |
| 2023-06-20 | GV 2021 GP, L.P. | TenPercentOwner | −Other | 37,405 | — | — |
| 2023-06-20 | GV 2021 GP, L.P. | TenPercentOwner | −Sell | 37,405 | $15.06 | $563,319 |
| 2023-06-16 | Alphabet Inc. | TenPercentOwner | −Other | 6,532 | — | — |
| 2023-06-16 | Alphabet Inc. | TenPercentOwner | −Sell | 6,532 | $15.02 | $98,111 |
| 2023-06-15 | Alphabet Inc. | TenPercentOwner | −Sell | 66,659 | $14.92 | $994,552 |
| 2023-06-15 | Alphabet Inc. | TenPercentOwner | −Other | 66,659 | — | — |
| 2023-06-14 | GV 2021 GP, L.P. | TenPercentOwner | −Sell | 28,960 | $14.87 | $430,635 |
| 2023-06-14 | GV 2021 GP, L.P. | TenPercentOwner | −Other | 28,960 | — | — |
| 2023-06-13 | GV 2021 GP, L.P. | TenPercentOwner | −Other | 28,100 | — | — |
| 2023-06-13 | GV 2021 GP, L.P. | TenPercentOwner | −Sell | 28,100 | $15.13 | $425,153 |
| 2023-06-12 | GV 2019 GP, L.L.C. | TenPercentOwner | −Sell | 16,031 | $14.98 | $240,144 |
| 2023-06-12 | GV 2019 GP, L.L.C. | TenPercentOwner | −Other | 16,031 | — | — |
| 2023-06-09 | GV 2019 GP, L.L.C. | TenPercentOwner | −Other | 15,672 | — | — |
| 2023-06-09 | GV 2019 GP, L.L.C. | TenPercentOwner | −Sell | 15,672 | $14.48 | $226,931 |
| 2023-06-08 | GV 2021 GP, L.P. | TenPercentOwner | −Sell | 5,000 | $15.74 | $78,700 |
| 2023-06-08 | GV 2021 GP, L.P. | TenPercentOwner | −Other | 5,000 | — | — |
| 2023-06-07 | GV 2021 GP, L.P. | TenPercentOwner | −Other | 15,000 | — | — |
| 2023-06-07 | GV 2021 GP, L.P. | TenPercentOwner | −Sell | 15,000 | $16.92 | $253,800 |
| 2023-06-06 | GV 2021 GP, L.P. | TenPercentOwner | −Other | 29,975 | — | — |
| 2023-06-06 | GV 2021 GP, L.P. | TenPercentOwner | −Sell | 29,975 | $17.02 | $510,175 |
| 2023-06-05 | GV 2021 GP, L.P. | TenPercentOwner | −Other | 22,434 | — | — |
| 2023-06-05 | GV 2021 GP, L.P. | TenPercentOwner | −Sell | 22,434 | $16.70 | $374,648 |
| 2023-06-01 | GV 2021 GP, L.L.C. | TenPercentOwner | −Other | 45,223 | — | — |
| 2023-06-01 | GV 2021 GP, L.L.C. | TenPercentOwner | −Sell | 471 | $14.75 | $6,947 |
| 2023-06-01 | GV 2021 GP, L.L.C. | TenPercentOwner | −Sell | 44,752 | $14.35 | $642,191 |
| 2023-05-31 | GV 2021 GP, L.L.C. | TenPercentOwner | −Other | 16,633 | — | — |
| 2023-05-31 | GV 2021 GP, L.L.C. | TenPercentOwner | −Sell | 16,633 | $13.65 | $227,040 |
| 2023-05-30 | GV 2019 GP, L.L.C. | TenPercentOwner | −Sell | 16,805 | $13.70 | $230,229 |
| 2023-05-30 | GV 2019 GP, L.L.C. | TenPercentOwner | −Other | 16,805 | — | — |
| 2023-05-26 | GV 2019 GP, L.L.C. | TenPercentOwner | −Sell | 12,602 | $13.70 | $172,647 |
| 2023-05-26 | GV 2019 GP, L.L.C. | TenPercentOwner | −Other | 12,602 | — | — |
| 2023-05-25 | Alphabet Inc. | TenPercentOwner | −Other | 23,161 | — | — |
| 2023-05-25 | Alphabet Inc. | TenPercentOwner | −Sell | 23,161 | $13.38 | $309,894 |
| 2023-05-24 | Alphabet Inc. | TenPercentOwner | −Other | 7,900 | — | — |
| 2023-05-24 | Alphabet Inc. | TenPercentOwner | −Sell | 7,900 | $13.66 | $107,914 |
| 2023-05-23 | Alphabet Inc. | TenPercentOwner | −Sell | 43,939 | $14.74 | $647,661 |
| 2023-05-23 | Alphabet Inc. | TenPercentOwner | −Other | 43,939 | — | — |
| 2023-05-22 | Alphabet Inc. | TenPercentOwner | −Other | 87,922 | — | — |
| 2023-05-22 | Alphabet Inc. | TenPercentOwner | −Sell | 87,922 | $14.13 | $1M |
| 2023-05-19 | GV 2021 GP, L.P. | TenPercentOwner | −Other | 63,212 | — | — |
| 2023-05-19 | GV 2021 GP, L.P. | TenPercentOwner | −Sell | 63,212 | $13.88 | $877,383 |
| 2023-05-18 | GV 2021 GP, L.P. | TenPercentOwner | −Sell | 14,022 | $13.06 | $183,127 |
| 2023-05-18 | GV 2021 GP, L.P. | TenPercentOwner | −Sell | 13,076 | $13.01 | $170,119 |
| 2023-05-18 | GV 2021 GP, L.P. | TenPercentOwner | −Other | 14,022 | — | — |
| 2023-05-17 | GV 2021, L.P. | TenPercentOwner | −Sell | 15,000 | $12.77 | $191,550 |
| 2023-05-16 | GV 2021, L.P. | TenPercentOwner | −Sell | 50,649 | $12.59 | $637,671 |
| 2023-05-15 | GV 2019 GP, L.L.C. | TenPercentOwner | −Sell | 157,952 | $12.74 | $2M |
| 2023-05-12 | GV 2019 GP, L.L.C. | TenPercentOwner | −Sell | 27,290 | $12.72 | $347,129 |
| 2023-05-11 | GV 2019, L.P. | TenPercentOwner | −Sell | 21,819 | $12.98 | $283,211 |
| 2023-05-11 | GV 2019, L.P. | TenPercentOwner | −Sell | 4,807 | $13.79 | $66,289 |
| 2023-05-10 | GV 2019, L.P. | TenPercentOwner | −Sell | 87,397 | $14.03 | $1M |
| 2023-05-09 | GV 2021 GP, L.P. | TenPercentOwner | −Sell | 321,238 | $14.08 | $5M |
| 2023-05-08 | GV 2021 GP, L.P. | TenPercentOwner | −Sell | 100,772 | $14.13 | $1M |
| 2022-10-24 | FMR LLC | Other | +Conversion | 98,967 | — | — |
| 2022-10-24 | FMR LLC | Other | +Conversion | 3,805,080 | — | — |
| 2022-10-24 | FMR LLC | Other | +Conversion | 423,509 | — | — |
| 2022-10-24 | FMR LLC | Other | +Conversion | 4,124,375 | — | — |
| 2022-10-24 | FMR LLC | Other | +Conversion | 11,015 | — | — |
| 2022-10-24 | Cahill Thomas | Director | +Buy | 400,000 | $17.00 | $7M |
| 2022-10-24 | Cahill Thomas | Director | +Conversion | 4,905,679 | — | — |
| 2022-10-24 | Liu David R. | TenPercentOwner | +Conversion | 321,665 | — | — |
| 2022-10-24 | NELSEN ROBERT | Director,TenPercentOwner | +Conversion | 16,080 | — | — |
| 2022-10-24 | NELSEN ROBERT | Director,TenPercentOwner | +Buy | 400,000 | $17.00 | $7M |
| 2022-10-24 | NELSEN ROBERT | Director,TenPercentOwner | +Buy | 400,000 | $17.00 | $7M |
| 2022-10-24 | NELSEN ROBERT | Director,TenPercentOwner | +Conversion | 5,728,297 | — | — |
| 2022-10-24 | NELSEN ROBERT | Director,TenPercentOwner | +Conversion | 5,728,297 | — | — |
| 2022-10-24 | ARCH Venture Partners X, LLC | TenPercentOwner | +Buy | 400,000 | $17.00 | $7M |
| 2022-10-24 | ARCH Venture Partners X, LLC | TenPercentOwner | +Conversion | 5,728,297 | — | — |
| 2022-10-24 | ARCH Venture Partners X, LLC | TenPercentOwner | +Conversion | 5,728,297 | — | — |
| 2022-10-24 | ARCH Venture Partners X, LLC | TenPercentOwner | +Buy | 400,000 | $17.00 | $7M |
| 2022-10-24 | GV 2021, L.P. | Other | +Conversion | 1,762,440 | — | — |
| 2022-10-24 | GV 2021, L.P. | Other | +Conversion | 10,722,248 | — | — |
| 2022-10-24 | GV 2021, L.P. | Other | +Buy | 800,000 | $17.00 | $14M |
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.
