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 |
|---|---|---|---|---|---|---|
| 2026-01-02 | Semba Charles Pauling | Director | +Grant | 3,355 | $8.42 | $28,249 |
| 2026-01-02 | Giuffre Randall Michael | Director | +Grant | 6,175 | $8.42 | $51,994 |
| 2026-01-02 | Parsons James T. | Director | +Grant | 10,095 | $8.42 | $85,000 |
| 2025-11-25 | TRILL AB | TenPercentOwner | +Buy | 73,099 | $8.57 | $626,458 |
| 2025-11-24 | TRILL AB | TenPercentOwner | +Buy | 40,253 | $7.89 | $317,596 |
| 2025-11-21 | Parsons James T. | Director | +Exercise | 12,000 | $2.20 | $26,400 |
| 2025-11-21 | TRILL AB | TenPercentOwner | +Buy | 208,872 | $7.41 | $2M |
| 2025-11-20 | TRILL AB | TenPercentOwner | +Buy | 128,426 | $7.41 | $951,637 |
| 2025-11-19 | TRILL AB | TenPercentOwner | +Buy | 240,352 | $7.21 | $2M |
| 2025-11-18 | TRILL AB | TenPercentOwner | +Buy | 182,882 | $6.75 | $1M |
| 2025-11-17 | TRILL AB | TenPercentOwner | +Buy | 187,393 | $6.52 | $1M |
| 2025-08-27 | STAHLBERG JAN | TenPercentOwner | +Buy | 50,772 | $6.00 | $304,632 |
| 2025-08-26 | STAHLBERG JAN | TenPercentOwner | +Buy | 59,648 | $6.00 | $357,888 |
| 2025-08-25 | STAHLBERG JAN | TenPercentOwner | +Buy | 338,265 | $6.00 | $2M |
| 2025-08-22 | STAHLBERG JAN | TenPercentOwner | +Buy | 59,788 | $5.96 | $356,336 |
| 2025-08-21 | STAHLBERG JAN | TenPercentOwner | +Buy | 48,172 | $5.96 | $287,105 |
| 2025-08-20 | STAHLBERG JAN | TenPercentOwner | +Buy | 71,107 | $5.86 | $416,687 |
| 2025-08-15 | STAHLBERG JAN | TenPercentOwner | +Buy | 8,233 | $6.00 | $49,398 |
| 2025-08-14 | STAHLBERG JAN | TenPercentOwner | +Buy | 70,414 | $5.99 | $421,780 |
| 2025-08-13 | STAHLBERG JAN | TenPercentOwner | +Buy | 293,601 | $5.91 | $2M |
| 2025-07-23 | JACINTO RICHARD II | TenPercentOwner | +Buy | 400,000 | $3.50 | $1M |
| 2025-07-23 | Von Koch Thomas | TenPercentOwner | +Buy | 2,857,142 | $3.50 | $10M |
| 2025-07-23 | STAHLBERG JAN | TenPercentOwner | +Buy | 1,542,857 | $3.50 | $5M |
| 2025-04-07 | Pilnik Richard D. | Director | +Exercise | 24,000 | $2.11 | $50,640 |
| 2025-02-13 | Giuffre Randall Michael | Director | +Exercise | 5,000 | $3.65 | $18,250 |
| 2025-02-13 | Giuffre Randall Michael | Director | +Exercise | 12,000 | $2.11 | $25,320 |
| 2025-01-02 | Semba Charles Pauling | Director | +Grant | 5,290 | $5.34 | $28,249 |
| 2025-01-02 | Pilnik Richard D. | Director | +Grant | 10,393 | $5.34 | $55,499 |
| 2025-01-02 | Kuntz Richard | Director | +Grant | 9,925 | $5.34 | $53,000 |
| 2025-01-02 | Giuffre Randall Michael | Director | +Grant | 10,861 | $5.34 | $57,998 |
| 2025-01-02 | Parsons James T. | Director | +Grant | 15,917 | $5.34 | $84,997 |
| 2024-06-28 | STAHLBERG JAN | TenPercentOwner | +Buy | 1,200,000 | $2.50 | $3M |
| 2024-06-28 | TomEnterprise Private AB | TenPercentOwner | +Buy | 1,200,000 | $2.50 | $3M |
| 2024-01-02 | Giuffre Randall Michael | Director | +Grant | 19,196 | $2.80 | $53,749 |
| 2024-01-02 | Parsons James T. | Director | +Grant | 21,428 | $2.80 | $59,998 |
| 2024-01-02 | Pilnik Richard D. | Director | +Grant | 30,357 | $2.80 | $85,000 |
| 2024-01-02 | Kuntz Richard | Director | +Grant | 14,285 | $2.80 | $39,998 |
| 2024-01-02 | Semba Charles Pauling | Director | +Grant | 9,375 | $2.80 | $26,250 |
| 2023-11-16 | Wambeke David J. | Officer | +Buy | 20,000 | $2.46 | $49,200 |
| 2023-06-23 | Pilnik Richard D. | Director | +Buy | 38,363 | $3.91 | $149,999 |
| 2023-06-23 | Wambeke David J. | Officer | +Buy | 38,364 | $3.91 | $150,003 |
| 2023-06-23 | Kellen Scott | Officer | +Buy | 10,000 | $3.91 | $39,100 |
| 2023-06-23 | Semba Charles Pauling | Director | +Buy | 12,787 | $3.91 | $49,997 |
| 2023-06-23 | Pauls Dietrich John | Director,Officer | +Buy | 12,787 | $3.91 | $49,997 |
| 2023-06-23 | Giuffre Randall Michael | Director | +Buy | 65,000 | $3.91 | $254,150 |
| 2023-06-23 | Giuffre Randall Michael | Director | −Gift | 15,000 | — | — |
| 2023-06-23 | TomEqt Private AB | TenPercentOwner | +Buy | 1,470,588 | $3.40 | $5M |
| 2023-04-10 | Wambeke David J. | Officer | +Buy | 468,750 | $1.60 | $750,000 |
| 2023-01-03 | Pilnik Richard D. | Director | +Grant | 55,555 | $1.53 | $84,999 |
| 2023-01-03 | Semba Charles Pauling | Director | +Grant | 17,156 | $1.53 | $26,249 |
| 2023-01-03 | Burroughs Amy L. | Director | +Grant | 17,156 | $1.53 | $26,249 |
| 2023-01-03 | Giuffre Randall Michael | Director | +Grant | 35,130 | $1.53 | $53,749 |
| 2022-12-09 | Giuffre Randall Michael | Director | +Buy | 37,079 | $1.43 | $53,023 |
| 2022-12-08 | Giuffre Randall Michael | Director | +Buy | 20,000 | $1.40 | $28,000 |
| 2022-12-07 | Giuffre Randall Michael | Director | +Buy | 22,574 | $1.40 | $31,604 |
| 2022-12-06 | Giuffre Randall Michael | Director | +Buy | 2,300 | $1.35 | $3,105 |
| 2022-12-05 | Pilnik Richard D. | Director | +Buy | 35,000 | $1.39 | $48,650 |
| 2022-12-02 | Von Koch Thomas | TenPercentOwner | −Sell | 2,855,847 | $1.24 | $4M |
| 2022-12-02 | Von Koch Thomas | TenPercentOwner | +Buy | 2,855,847 | $1.24 | $4M |
| 2022-12-01 | Giuffre Randall Michael | Director | +Buy | 46,133 | $1.20 | $55,360 |
| 2022-12-01 | Giuffre Randall Michael | Director | +Buy | 819 | $1.19 | $975 |
| 2022-11-30 | Giuffre Randall Michael | Director | +Buy | 2,970 | $1.19 | $3,534 |
| 2022-11-29 | Giuffre Randall Michael | Director | +Buy | 18,125 | $1.19 | $21,569 |
| 2022-07-08 | TomEnterprise AB | TenPercentOwner | +Buy | 207,974 | $1.33 | $276,605 |
| 2022-01-03 | Giuffre Randall Michael | Director | +Grant | 15,026 | $3.58 | $53,793 |
| 2022-01-03 | Parsons James T. | Director | +Grant | 16,773 | $3.58 | $60,047 |
| 2022-01-03 | Pilnik Richard D. | Director | +Grant | 23,762 | $3.58 | $85,068 |
| 2022-01-03 | Burroughs Amy L. | Director | +Grant | 11,182 | $3.58 | $40,032 |
| 2021-09-15 | ALCORN HARRY W JR | Officer | +Buy | 15,000 | $3.80 | $57,000 |
| 2021-08-16 | Kellen Scott | Officer | +Buy | 10,000 | $3.15 | $31,500 |
| 2021-08-16 | Pauls Dietrich John | Director,Officer | +Buy | 5,000 | $3.14 | $15,700 |
| 2021-08-16 | ALCORN HARRY W JR | Officer | +Buy | 20,000 | $3.09 | $61,800 |
| 2021-08-16 | ALCORN HARRY W JR | Officer | +Buy | 322 | $3.06 | $985 |
| 2021-08-16 | ALCORN HARRY W JR | Officer | +Buy | 399 | $3.07 | $1,225 |
| 2021-08-16 | Pilnik Richard D. | Director | +Buy | 2,500 | $3.21 | $8,025 |
| 2021-08-16 | Pilnik Richard D. | Director | +Buy | 12,500 | $3.28 | $41,000 |
| 2021-08-16 | Burroughs Amy L. | Director | +Buy | 44,950 | $3.15 | $141,593 |
| 2021-01-01 | Pilnik Richard D. | Director | +Grant | 9,719 | $8.23 | $79,987 |
| 2021-01-01 | Parsons James T. | Director | +Grant | 7,745 | $8.23 | $63,741 |
| 2021-01-01 | Giuffre Randall Michael | Director | +Grant | 7,441 | $8.23 | $61,239 |
| 2020-12-04 | Pilnik Richard D. | Director | +Buy | 5,000 | $5.50 | $27,500 |
| 2020-12-04 | Pilnik Richard D. | Director | +Buy | 5,000 | $5.24 | $26,200 |
| 2020-11-20 | Giuffre Randall Michael | Director | +Buy | 15,000 | $4.26 | $63,900 |
| 2020-11-09 | Kellen Scott | Officer | +Buy | 2,000 | $4.19 | $8,380 |
| 2020-06-01 | Pilnik Richard D. | Director | +Grant | 10,168 | $4.59 | $46,671 |
| 2020-06-01 | Parsons James T. | Director | +Grant | 8,102 | $4.59 | $37,188 |
| 2020-06-01 | Giuffre Randall Michael | Director | +Grant | 7,784 | $4.59 | $35,729 |
| 2019-08-19 | Kellen Scott | Officer | +Buy | 3,000 | $2.43 | $7,290 |
| 2019-08-16 | Pauls Dietrich John | Director,Officer | +Buy | 1,000 | $2.68 | $2,680 |
| 2019-08-16 | ALCORN HARRY W JR | Officer | +Buy | 7,260 | $2.67 | $19,384 |
| 2019-08-16 | Pilnik Richard D. | Director | +Buy | 7,840 | $2.56 | $20,070 |
| 2019-05-31 | Pilnik Richard D. | Director | +Buy | 19,000 | $2.80 | $53,200 |
| 2019-05-24 | Kellen Scott | Officer | +Buy | 4,000 | $2.94 | $11,760 |
| 2019-03-28 | ALCORN HARRY W JR | Officer | −Gift | 150 | — | — |
| 2019-03-27 | ALCORN HARRY W JR | Officer | +Buy | 150 | $4.46 | $669 |
| 2018-12-11 | ALCORN HARRY W JR | Officer | +Buy | 1,000 | $4.00 | $4,000 |
| 2018-12-11 | Giuffre Randall Michael | Director | +Buy | 11,250 | $4.00 | $45,000 |
| 2018-12-11 | Kellen Scott | Officer | +Buy | 1,250 | $4.00 | $5,000 |
| 2018-12-11 | Parsons James T. | Director | +Buy | 2,250 | $4.00 | $9,000 |
| 2018-12-11 | Pauls Dietrich John | Director,Officer | +Buy | 5,000 | $4.00 | $20,000 |
| 2018-12-11 | Pilnik Richard D. | Director | +Buy | 6,250 | $4.00 | $25,000 |
| 2018-12-11 | Verdoorn Todd A. | Officer | +Buy | 1,000 | $4.00 | $4,000 |
| 2018-12-11 | Xiao Zhenyu | Director,TenPercentOwner | +Buy | 3,250 | $4.00 | $13,000 |
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.
