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 |
|---|---|---|---|---|---|---|
| 2026-01-12 | Kim Helen Susan | Director,TenPercentOwner | +Buy | 812,455 | $18.00 | $15M |
| 2026-01-12 | Kim Helen Susan | Director,TenPercentOwner | +Conversion | 134,842 | — | — |
| 2026-01-12 | Kim Helen Susan | Director,TenPercentOwner | +Buy | 22,545 | $18.00 | $405,810 |
| 2026-01-12 | Kim Helen Susan | Director,TenPercentOwner | +Conversion | 4,859,370 | — | — |
| 2026-01-12 | Segal Lloyd Mitchell | Director | +Conversion | 19,631 | — | — |
| 2026-01-12 | VIDA VENTURES II-A, LLC | TenPercentOwner | +Buy | 812,455 | $18.00 | $15M |
| 2026-01-12 | VIDA VENTURES II-A, LLC | TenPercentOwner | +Conversion | 134,842 | — | — |
| 2026-01-12 | VIDA VENTURES II-A, LLC | TenPercentOwner | +Buy | 22,545 | $18.00 | $405,810 |
| 2026-01-12 | VIDA VENTURES II-A, LLC | TenPercentOwner | +Conversion | 4,859,370 | — | — |
| 2026-01-12 | NODELMAN OLEG | Director | +Buy | 144,443 | $18.00 | $3M |
| 2026-01-12 | NODELMAN OLEG | Director | +Conversion | 2,270,879 | — | — |
| 2026-01-12 | NODELMAN OLEG | Director | +Conversion | 202,862 | — | — |
| 2026-01-12 | NODELMAN OLEG | Director | +Conversion | 128,506 | — | — |
| 2026-01-12 | NODELMAN OLEG | Director | +Buy | 2,077,779 | $18.00 | $37M |
| 2026-01-12 | GADICKE ANSBERT | TenPercentOwner | +Conversion | 5,914,197 | — | — |
| 2026-01-12 | GADICKE ANSBERT | TenPercentOwner | +Conversion | 1,577,119 | — | — |
| 2026-01-12 | GADICKE ANSBERT | TenPercentOwner | +Buy | 1,112,777 | $18.00 | $20M |
| 2026-01-12 | GADICKE ANSBERT | TenPercentOwner | +Conversion | 1,314,262 | — | — |
| 2026-01-12 | MPM ONCOLOGY INNOVATIONS FUND LP | TenPercentOwner | +Buy | 1,112,777 | $18.00 | $20M |
| 2026-01-12 | MPM ONCOLOGY INNOVATIONS FUND LP | TenPercentOwner | +Conversion | 1,314,262 | — | — |
| 2026-01-12 | MPM ONCOLOGY INNOVATIONS FUND LP | TenPercentOwner | +Conversion | 5,914,197 | — | — |
| 2026-01-12 | MPM ONCOLOGY INNOVATIONS FUND LP | TenPercentOwner | +Conversion | 1,577,119 | — | — |
| 2026-01-12 | Foley Todd | Director,TenPercentOwner | +Conversion | 716,872 | — | — |
| 2026-01-12 | Foley Todd | Director,TenPercentOwner | +Conversion | 597,391 | — | — |
| 2026-01-12 | Foley Todd | Director,TenPercentOwner | +Buy | 232,870 | $18.00 | $4M |
| 2026-01-12 | Foley Todd | Director,TenPercentOwner | +Conversion | 2,688,270 | — | — |
| 2024-01-29 | Shealy Jeffrey B. | Director,Officer | +Buy | 1,310,000 | $0.50 | $655,000 |
| 2024-01-29 | Boller Kenneth | Officer | +Buy | 60,000 | $0.50 | $30,000 |
| 2024-01-29 | Aichele David | Officer | +Buy | 80,000 | $0.50 | $40,000 |
| 2024-01-29 | Geiss Arthur | Director | +Buy | 50,000 | $0.50 | $25,000 |
| 2023-12-18 | Boller Kenneth | Officer | −Sell | 1,200 | $0.72 | $864 |
| 2023-12-18 | Aichele David | Officer | −Sell | 1,500 | $0.72 | $1,080 |
| 2023-11-21 | Boller Kenneth | Officer | −Sell | 1,700 | $0.59 | $1,003 |
| 2023-11-21 | Aichele David | Officer | −Sell | 2,600 | $0.59 | $1,534 |
| 2023-11-06 | Denbaars Steven | Director | +Grant | 38,250 | — | — |
| 2023-11-06 | McGuire James Michael | Director | +Grant | 83,500 | — | — |
| 2023-11-06 | McMahon Jeffrey | Director | +Grant | 78,250 | — | — |
| 2023-11-06 | RUDY SUZANNE B | Director | +Grant | 108,250 | — | — |
| 2023-11-06 | Geiss Arthur | Director | +Grant | 138,333 | — | — |
| 2023-11-06 | NEAL JERRY D | Director | +Grant | 125,750 | — | — |
| 2023-09-26 | Shealy Jeffrey B. | Director,Officer | +Grant | 80,000 | — | — |
| 2023-09-13 | Boller Kenneth | Officer | +Grant | 40,000 | — | — |
| 2023-09-13 | Aichele David | Officer | +Grant | 40,000 | — | — |
| 2023-09-11 | Aichele David | Officer | −Sell | 5,300 | $1.09 | $5,777 |
| 2023-09-11 | Boller Kenneth | Officer | −Sell | 3,900 | $1.10 | $4,290 |
| 2023-08-18 | Denbaars Steven | Director | −Sell | 7,000 | $1.83 | $12,810 |
| 2023-03-23 | Petock Michelle | Director | +Grant | 24,151 | — | — |
| 2023-03-09 | McGuire James Michael | Director | +Grant | 2,002 | — | — |
| 2023-02-10 | Boller Kenneth | Officer | −Sell | 800 | $4.37 | $3,496 |
| 2023-01-24 | Shealy Jeffrey B. | Director,Officer | +Grant | 327,273 | $2.75 | $900,001 |
| 2023-01-24 | Denbaars Steven | Director | +Grant | 18,182 | $2.75 | $50,001 |
| 2022-12-20 | Shealy Jeffrey B. | Director,Officer | −Sell | 2,340 | $2.84 | $6,646 |
| 2022-12-19 | Boller Kenneth | Officer | −Sell | 1,200 | $2.92 | $3,504 |
| 2022-12-19 | Aichele David | Officer | −Sell | 1,480 | $3.14 | $4,647 |
| 2022-12-06 | Denbaars Steven | Director | −Sell | 7,000 | $3.57 | $24,990 |
| 2022-11-28 | Shealy Jeffrey B. | Director,Officer | −Sell | 1,950 | $3.54 | $6,903 |
| 2022-11-23 | Aichele David | Officer | −Sell | 1,850 | $3.52 | $6,512 |
| 2022-11-23 | Boller Kenneth | Officer | −Sell | 1,200 | $3.52 | $4,224 |
| 2022-11-21 | Shealy Jeffrey B. | Director,Officer | +Grant | 50,000 | — | — |
| 2022-11-21 | Boller Kenneth | Officer | +Grant | 25,000 | — | — |
| 2022-11-21 | Aichele David | Officer | +Grant | 35,000 | — | — |
| 2022-11-10 | NEAL JERRY D | Director | +Grant | 65,722 | — | — |
| 2022-11-10 | Geiss Arthur | Director | +Grant | 72,299 | — | — |
| 2022-11-10 | Denbaars Steven | Director | +Grant | 39,982 | — | — |
| 2022-11-10 | McGuire James Michael | Director | +Grant | 40,766 | — | — |
| 2022-09-09 | Shealy Jeffrey B. | Director,Officer | −Sell | 3,900 | $4.30 | $16,770 |
| 2022-09-06 | Denbaars Steven | Director | −Sell | 7,000 | $3.90 | $27,300 |
| 2022-08-29 | Shealy Jeffrey B. | Director,Officer | −Sell | 3,900 | $4.54 | $17,706 |
| 2022-08-29 | Aichele David | Officer | −Sell | 3,700 | $4.53 | $16,761 |
| 2022-08-29 | Boller Kenneth | Officer | −Sell | 2,400 | $4.53 | $10,872 |
| 2022-08-22 | Aichele David | Officer | −Sell | 1,480 | $4.62 | $6,838 |
| 2022-08-22 | Boller Kenneth | Officer | −Sell | 1,500 | $4.62 | $6,930 |
| 2022-07-18 | Aichele David | Officer | −Sell | 2,313 | $3.68 | $8,512 |
| 2022-06-20 | Geiss Arthur | Director | +Exercise | 10,000 | $1.50 | $15,000 |
| 2022-06-06 | Denbaars Steven | Director | −Sell | 7,000 | $4.48 | $31,360 |
| 2022-04-08 | Aichele David | Officer | −Sell | 5,000 | $5.93 | $29,650 |
| 2022-02-17 | Geiss Arthur | Director | +Exercise | 20,000 | $1.50 | $30,000 |
| 2022-02-14 | Denbaars Steven | Director | +Exercise | 8,013 | $6.24 | $50,001 |
| 2022-02-10 | Shealy Jeffrey B. | Director,Officer | +Exercise | 15,000 | $7.12 | $106,800 |
| 2022-02-10 | Boller Kenneth | Officer | +Grant | 10,000 | — | — |
| 2022-02-07 | McGuire James Michael | Director | +Buy | 17,800 | $5.62 | $100,036 |
| 2022-01-11 | Denbaars Steven | Director | −Sell | 7,000 | $5.91 | $41,370 |
| 2021-12-20 | Aichele David | Officer | −Sell | 1,480 | $6.64 | $9,827 |
| 2021-12-20 | Boller Kenneth | Officer | −Sell | 2,100 | $6.69 | $14,049 |
| 2021-12-17 | Shealy Jeffrey B. | Director,Officer | −Sell | 13,928 | $7.01 | $97,635 |
| 2021-11-23 | Aichele David | Officer | −Sell | 1,850 | $6.77 | $12,525 |
| 2021-11-23 | Boller Kenneth | Officer | −Sell | 900 | $6.97 | $6,273 |
| 2021-11-09 | RUDY SUZANNE B | Director | −Sell | 12,731 | $8.11 | $103,248 |
| 2021-10-29 | Geiss Arthur | Director | −Sell | 10,000 | $7.47 | $74,700 |
| 2021-10-28 | RUDY SUZANNE B | Director | +Grant | 22,543 | — | — |
| 2021-10-28 | NEAL JERRY D | Director | +Grant | 27,456 | — | — |
| 2021-10-28 | McMahon Jeffrey | Director | +Grant | 17,576 | — | — |
| 2021-10-28 | McGuire James Michael | Director | +Grant | 17,030 | — | — |
| 2021-10-28 | Geiss Arthur | Director | +Grant | 22,652 | — | — |
| 2021-10-28 | Denbaars Steven | Director | +Grant | 16,703 | — | — |
| 2021-10-11 | Denbaars Steven | Director | −Sell | 7,000 | $8.08 | $56,560 |
| 2021-09-27 | Aichele David | Officer | −Sell | 1,388 | $10.60 | $14,713 |
| 2021-09-09 | Shealy Jeffrey B. | Director,Officer | +Grant | 50,000 | — | — |
| 2021-08-30 | Aichele David | Officer | −Sell | 1,850 | $9.04 | $16,724 |
| 2021-08-30 | Boller Kenneth | Officer | −Sell | 900 | $10.00 | $9,000 |
| 2021-08-27 | Aichele David | Officer | +Grant | 25,000 | — | — |
| 2021-08-27 | Boller Kenneth | Officer | +Grant | 15,000 | — | — |
| 2021-08-23 | Houlden Rohan | Officer | −Sell | 880 | $8.15 | $7,172 |
| 2021-08-20 | Aichele David | Officer | −Sell | 1,480 | $8.23 | $12,180 |
| 2021-08-20 | Boller Kenneth | Officer | −Sell | 1,200 | $8.24 | $9,888 |
| 2021-07-19 | Houlden Rohan | Officer | −Sell | 1,375 | $8.96 | $12,320 |
| 2021-07-16 | Aichele David | Officer | −Sell | 2,313 | $9.37 | $21,673 |
| 2021-07-12 | Denbaars Steven | Director | −Sell | 7,000 | $9.93 | $69,510 |
| 2021-04-12 | Denbaars Steven | Director | −Sell | 7,000 | $12.00 | $84,000 |
| 2021-04-08 | Shealy Jeffrey B. | Director,Officer | −Sell | 100,000 | $12.03 | $1M |
| 2021-04-07 | Shealy Jeffrey B. | Director,Officer | −Sell | 100,000 | $12.51 | $1M |
| 2021-03-22 | Aichele David | Officer | −Sell | 5,000 | $13.72 | $68,600 |
| 2021-03-17 | Boller Kenneth | Officer | −Sell | 1,442 | $13.99 | $20,174 |
| 2021-03-16 | Shealy Jeffrey B. | Director,Officer | −Sell | 100,000 | $13.32 | $1M |
| 2021-03-15 | Shealy Jeffrey B. | Director,Officer | −Sell | 100,000 | $13.83 | $1M |
| 2021-03-15 | Houlden Rohan | Officer | −Sell | 1,375 | $13.82 | $19,003 |
| 2021-03-11 | Houlden Rohan | Officer | −Sell | 99,800 | $14.13 | $1M |
| 2021-02-08 | Shealy Jeffrey B. | Director,Officer | −Sell | 15,000 | $18.00 | $270,000 |
| 2021-02-04 | Shealy Jeffrey B. | Director,Officer | −Gift | 319,719 | — | — |
| 2021-01-11 | Denbaars Steven | Director | −Sell | 7,000 | $13.40 | $93,800 |
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.
