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 |
|---|---|---|---|---|---|---|
| 2026-04-03 | Andrle Edward | Director | +Grant | 41,929 | — | — |
| 2026-04-03 | BUCKMAN PAUL | Director | +Grant | 41,929 | — | — |
| 2026-04-03 | MATHIESEN JEFFREY S | Director | +Grant | 41,929 | — | — |
| 2026-04-03 | Mills Jason Richard | Director | +Grant | 41,929 | — | — |
| 2026-03-31 | Rosa David A | Director,Officer | −Tax w/h | 2,458 | $0.78 | $1,917 |
| 2026-03-31 | Mertens Steve | Officer | −Tax w/h | 906 | $0.78 | $707 |
| 2026-03-31 | Christianson Mark | Officer | −Tax w/h | 253 | $0.78 | $197 |
| 2026-03-30 | Christianson Mark | Officer | −Sell | 15,363 | $0.74 | $11,369 |
| 2026-03-13 | Christianson Mark | Officer | −Sell | 100 | $0.80 | $80 |
| 2026-03-12 | Christianson Mark | Officer | −Sell | 817 | $0.80 | $654 |
| 2026-03-11 | Christianson Mark | Officer | −Sell | 2,109 | $0.80 | $1,687 |
| 2026-03-10 | Christianson Mark | Officer | −Sell | 11,611 | $0.80 | $9,289 |
| 2026-03-01 | Wambeke David J. | Officer | +Buy | 1,000,000 | $0.67 | $670,000 |
| 2026-02-18 | Rosa David A | Director,Officer | −Tax w/h | 71,325 | $0.68 | $48,501 |
| 2026-02-18 | Christianson Mark | Officer | −Tax w/h | 1,812 | $0.68 | $1,232 |
| 2026-02-18 | Mertens Steve | Officer | −Tax w/h | 7,376 | $0.68 | $5,016 |
| 2025-12-31 | Christianson Mark | Officer | −Tax w/h | 253 | $0.76 | $192 |
| 2025-12-31 | Rosa David A | Director,Officer | +Tax w/h | 2,458 | $0.76 | $1,868 |
| 2025-12-31 | Mertens Steve | Officer | −Tax w/h | 906 | $0.76 | $689 |
| 2025-12-18 | Mills Jason Richard | Director | +Grant | 7,758 | — | — |
| 2025-09-30 | Rosa David A | Director,Officer | −Tax w/h | 2,458 | $0.89 | $2,188 |
| 2025-09-30 | Christianson Mark | Officer | −Tax w/h | 253 | $0.89 | $225 |
| 2025-09-30 | Mertens Steve | Officer | −Tax w/h | 906 | $0.89 | $806 |
| 2025-09-05 | Christianson Mark | Officer | −Sell | 30,000 | $0.74 | $22,200 |
| 2025-06-30 | Rosa David A | Director,Officer | −Tax w/h | 2,458 | $0.68 | $1,671 |
| 2025-06-30 | Mertens Steve | Officer | −Tax w/h | 906 | $0.68 | $616 |
| 2025-06-30 | Christianson Mark | Officer | −Tax w/h | 253 | $0.68 | $172 |
| 2025-06-04 | Christianson Mark | Officer | −Sell | 10,000 | $0.58 | $5,800 |
| 2025-05-22 | Christianson Mark | Officer | −Sell | 8,967 | $0.62 | $5,560 |
| 2025-05-21 | Christianson Mark | Officer | −Sell | 14 | $0.65 | $9 |
| 2025-05-20 | Christianson Mark | Officer | −Sell | 3,013 | $0.66 | $1,989 |
| 2025-05-19 | Christianson Mark | Officer | −Sell | 8,006 | $0.67 | $5,364 |
| 2025-04-04 | Rosa David A | Director,Officer | +Buy | 100,000 | $0.50 | $50,000 |
| 2025-04-04 | McClurg Ronald W. | Officer | +Buy | 200,000 | $0.50 | $100,000 |
| 2025-03-31 | Rosa David A | Director,Officer | −Tax w/h | 2,458 | $0.85 | $2,089 |
| 2025-03-31 | Christianson Mark | Officer | −Tax w/h | 253 | $0.85 | $215 |
| 2025-03-31 | Mertens Steve | Officer | −Tax w/h | 906 | $0.85 | $770 |
| 2025-02-18 | Rosa David A | Director,Officer | −Tax w/h | 71,325 | $1.16 | $82,737 |
| 2025-02-18 | Christianson Mark | Officer | −Tax w/h | 1,812 | $1.16 | $2,102 |
| 2025-02-18 | Mertens Steve | Officer | −Tax w/h | 7,376 | $1.16 | $8,556 |
| 2025-02-14 | MATHIESEN JEFFREY S | Director | +Grant | 27,778 | — | — |
| 2025-02-14 | Andrle Edward | Director | +Grant | 27,778 | — | — |
| 2025-02-14 | BUCKMAN PAUL | Director | +Grant | 27,778 | — | — |
| 2025-01-31 | Rosa David A | Director,Officer | −Tax w/h | 2,239 | $1.15 | $2,575 |
| 2025-01-31 | Christianson Mark | Officer | −Tax w/h | 90 | $1.15 | $103 |
| 2025-01-31 | Mertens Steve | Officer | −Tax w/h | 252 | $1.15 | $290 |
| 2024-12-31 | Rosa David A | Director,Officer | −Tax w/h | 4,697 | $0.83 | $3,899 |
| 2024-12-31 | Christianson Mark | Officer | −Tax w/h | 343 | $0.83 | $285 |
| 2024-12-31 | Mertens Steve | Officer | −Tax w/h | 1,158 | $0.83 | $961 |
| 2024-11-30 | Rosa David A | Director,Officer | −Tax w/h | 2,239 | $0.62 | $1,388 |
| 2024-11-30 | Christianson Mark | Officer | −Tax w/h | 90 | $0.62 | $56 |
| 2024-11-30 | Mertens Steve | Officer | −Tax w/h | 252 | $0.62 | $156 |
| 2024-10-31 | Rosa David A | Director,Officer | −Tax w/h | 2,239 | $0.97 | $2,172 |
| 2024-10-31 | Christianson Mark | Officer | −Tax w/h | 90 | $0.97 | $87 |
| 2024-10-31 | Mertens Steve | Officer | −Tax w/h | 252 | $0.97 | $244 |
| 2024-09-30 | Rosa David A | Director,Officer | −Tax w/h | 4,697 | $0.99 | $4,650 |
| 2024-09-30 | Christianson Mark | Officer | −Tax w/h | 343 | $0.99 | $340 |
| 2024-09-30 | Mertens Steve | Officer | −Tax w/h | 1,158 | $0.99 | $1,146 |
| 2024-08-31 | Rosa David A | Director,Officer | −Tax w/h | 2,239 | $0.80 | $1,791 |
| 2024-08-31 | Christianson Mark | Officer | −Tax w/h | 90 | $0.80 | $72 |
| 2024-08-31 | Mertens Steve | Officer | −Tax w/h | 252 | $0.80 | $202 |
| 2024-08-01 | BUCKMAN PAUL | Director | +Grant | 27,778 | $0.81 | $22,500 |
| 2024-07-31 | Rosa David A | Director,Officer | −Tax w/h | 2,239 | $0.75 | $1,679 |
| 2024-07-31 | Christianson Mark | Officer | −Tax w/h | 90 | $0.75 | $68 |
| 2024-07-31 | Mertens Steve | Officer | −Tax w/h | 252 | $0.75 | $189 |
| 2024-06-30 | Christianson Mark | Officer | −Tax w/h | 343 | $0.80 | $274 |
| 2024-06-30 | Rosa David A | Director,Officer | −Tax w/h | 4,697 | $0.80 | $3,758 |
| 2024-06-30 | Mertens Steve | Officer | −Tax w/h | 1,158 | $0.80 | $926 |
| 2024-06-06 | Christianson Mark | Officer | −Sell | 2,189 | $0.88 | $1,926 |
| 2024-06-05 | Christianson Mark | Officer | −Sell | 25,800 | $0.88 | $22,704 |
| 2024-05-31 | Rosa David A | Director,Officer | −Tax w/h | 2,239 | $0.93 | $2,082 |
| 2024-05-31 | Christianson Mark | Officer | −Tax w/h | 90 | $0.93 | $84 |
| 2024-05-31 | Mertens Steve | Officer | −Tax w/h | 252 | $0.93 | $234 |
| 2024-04-30 | Rosa David A | Director,Officer | −Tax w/h | 2,239 | $1.13 | $2,530 |
| 2024-04-30 | Christianson Mark | Officer | −Tax w/h | 90 | $1.13 | $102 |
| 2024-04-30 | Mertens Steve | Officer | −Tax w/h | 252 | $1.13 | $285 |
| 2024-04-21 | Rosa David A | Director,Officer | −Tax w/h | 19,673 | $1.15 | $22,624 |
| 2024-04-21 | Christianson Mark | Officer | −Tax w/h | 2,030 | $1.15 | $2,335 |
| 2024-04-21 | Mertens Steve | Officer | −Tax w/h | 7,250 | $1.15 | $8,338 |
| 2024-03-31 | Rosa David A | Director,Officer | −Tax w/h | 2,239 | $1.20 | $2,687 |
| 2024-03-31 | Christianson Mark | Officer | −Tax w/h | 90 | $1.20 | $108 |
| 2024-03-31 | Mertens Steve | Officer | −Tax w/h | 252 | $1.20 | $302 |
| 2024-02-29 | Christianson Mark | Officer | −Tax w/h | 90 | $1.21 | $109 |
| 2024-02-29 | Rosa David A | Director,Officer | −Tax w/h | 2,239 | $1.21 | $2,709 |
| 2024-02-29 | Mertens Steve | Officer | −Tax w/h | 252 | $1.21 | $305 |
| 2024-02-18 | Rosa David A | Director,Officer | +Grant | 663,497 | — | — |
| 2024-02-18 | Christianson Mark | Officer | +Grant | 25,000 | — | — |
| 2024-02-18 | McClurg Ronald W. | Officer | +Grant | 113,717 | — | — |
| 2024-02-18 | Mertens Steve | Officer | +Grant | 101,743 | — | — |
| 2024-01-31 | Rosa David A | Director,Officer | −Tax w/h | 2,239 | $1.25 | $2,799 |
| 2024-01-31 | Christianson Mark | Officer | −Tax w/h | 90 | $1.25 | $113 |
| 2024-01-31 | Mertens Steve | Officer | −Tax w/h | 252 | $1.25 | $315 |
| 2023-12-31 | Rosa David A | Director,Officer | −Tax w/h | 2,239 | $1.58 | $3,538 |
| 2023-12-31 | Christianson Mark | Officer | −Tax w/h | 90 | $1.58 | $142 |
| 2023-12-31 | Mertens Steve | Officer | −Tax w/h | 252 | $1.58 | $398 |
| 2023-12-27 | Christianson Mark | Officer | −Sell | 31,445 | $1.46 | $45,910 |
| 2023-12-26 | Christianson Mark | Officer | −Sell | 6,848 | $1.35 | $9,245 |
| 2023-12-22 | Christianson Mark | Officer | −Sell | 1,800 | $1.40 | $2,520 |
| 2023-12-21 | Christianson Mark | Officer | −Sell | 9,907 | $1.40 | $13,870 |
| 2023-12-21 | Volker Christopher | Officer | +Buy | 75,000 | $1.40 | $105,000 |
| 2023-11-30 | Rosa David A | Director,Officer | −Tax w/h | 2,239 | $1.45 | $3,247 |
| 2023-11-30 | Christianson Mark | Officer | −Tax w/h | 90 | $1.45 | $131 |
| 2023-11-30 | Mertens Steve | Officer | −Tax w/h | 252 | $1.45 | $365 |
| 2023-11-02 | Rosa David A | Director,Officer | −Tax w/h | 2,239 | $1.61 | $3,605 |
| 2023-11-02 | Christianson Mark | Officer | −Tax w/h | 90 | $1.61 | $145 |
| 2023-11-02 | Mertens Steve | Officer | −Tax w/h | 252 | $1.61 | $406 |
| 2023-10-31 | Rosa David A | Director,Officer | −Tax w/h | 2,239 | $0.90 | $2,015 |
| 2023-10-31 | Christianson Mark | Officer | −Tax w/h | 90 | $0.90 | $81 |
| 2023-10-31 | Mertens Steve | Officer | −Tax w/h | 252 | $0.90 | $227 |
| 2023-09-30 | Rosa David A | Director,Officer | −Tax w/h | 2,239 | $0.89 | $1,993 |
| 2023-09-30 | Christianson Mark | Officer | −Tax w/h | 90 | $0.89 | $80 |
| 2023-09-30 | Mertens Steve | Officer | −Tax w/h | 252 | $0.89 | $224 |
| 2023-09-13 | McClurg Ronald W. | Officer | +Buy | 50,900 | $0.98 | $49,882 |
| 2023-08-31 | Rosa David A | Director,Officer | −Tax w/h | 2,239 | $0.85 | $1,903 |
| 2023-08-31 | Christianson Mark | Officer | −Tax w/h | 90 | $0.85 | $77 |
| 2023-08-31 | Mertens Steve | Officer | −Tax w/h | 252 | $0.85 | $214 |
| 2023-07-31 | Rosa David A | Director,Officer | −Tax w/h | 2,239 | $1.02 | $2,284 |
| 2023-07-31 | Christianson Mark | Officer | −Tax w/h | 90 | $1.02 | $92 |
| 2023-07-31 | Mertens Steve | Officer | −Tax w/h | 252 | $1.02 | $257 |
| 2023-06-30 | Rosa David A | Director,Officer | −Tax w/h | 2,239 | $1.20 | $2,687 |
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.
