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 |
|---|---|---|---|---|---|---|
| 2026-06-22 | Foster Jonathan P. | Officer | −Tax w/h | 41 | $3.12 | $128 |
| 2026-06-22 | Foster Jonathan P. | Officer | +Exercise | 174 | — | — |
| 2026-06-22 | KLEMP WALTER V | Director,Officer | −Tax w/h | 88 | $3.12 | $275 |
| 2026-06-22 | KLEMP WALTER V | Director,Officer | +Exercise | 360 | — | — |
| 2026-06-22 | PICKER DONALD H | Officer | +Exercise | 71 | — | — |
| 2026-06-22 | PICKER DONALD H | Officer | −Tax w/h | 21 | $3.12 | $66 |
| 2026-06-20 | Foster Jonathan P. | Officer | −Tax w/h | 31 | $2.88 | $89 |
| 2026-06-20 | Foster Jonathan P. | Officer | +Exercise | 109 | — | — |
| 2026-06-20 | KLEMP WALTER V | Director,Officer | +Exercise | 150 | — | — |
| 2026-06-20 | KLEMP WALTER V | Director,Officer | −Tax w/h | 37 | $2.88 | $107 |
| 2026-06-20 | PICKER DONALD H | Officer | −Tax w/h | 13 | $2.88 | $37 |
| 2026-06-20 | PICKER DONALD H | Officer | +Exercise | 44 | — | — |
| 2025-11-04 | Foster Jonathan P. | Officer | −Exercise | 5,023 | $0.50 | $2,512 |
| 2025-11-04 | Foster Jonathan P. | Officer | +Exercise | 20,625 | — | — |
| 2025-11-04 | KLEMP WALTER V | Director,Officer | −Tax w/h | 7,001 | $0.50 | $3,501 |
| 2025-11-04 | KLEMP WALTER V | Director,Officer | +Exercise | 28,750 | — | — |
| 2025-11-04 | PICKER DONALD H | Officer | +Exercise | 8,750 | — | — |
| 2025-11-04 | PICKER DONALD H | Officer | −Tax w/h | 2,131 | $0.50 | $1,066 |
| 2025-06-23 | KLEMP WALTER V | Director,Officer | +Buy | 675,675 | $0.37 | $250,000 |
| 2025-06-23 | Foster Jonathan P. | Officer | +Buy | 270,270 | $0.37 | $100,000 |
| 2025-06-22 | PICKER DONALD H | Officer | +Exercise | 1,766 | — | — |
| 2025-06-22 | PICKER DONALD H | Officer | −Tax w/h | 430 | $0.27 | $116 |
| 2025-06-22 | KLEMP WALTER V | Director,Officer | +Exercise | 8,990 | — | — |
| 2025-06-22 | KLEMP WALTER V | Director,Officer | −Tax w/h | 2,190 | $0.27 | $591 |
| 2025-06-22 | Foster Jonathan P. | Officer | +Exercise | 4,328 | — | — |
| 2025-06-22 | Foster Jonathan P. | Officer | −Tax w/h | 1,054 | $0.27 | $285 |
| 2025-06-20 | PICKER DONALD H | Officer | −Tax w/h | 263 | $0.27 | $71 |
| 2025-06-20 | PICKER DONALD H | Officer | +Exercise | 1,078 | — | — |
| 2025-06-20 | KLEMP WALTER V | Director,Officer | −Tax w/h | 914 | $0.27 | $247 |
| 2025-06-20 | KLEMP WALTER V | Director,Officer | +Exercise | 3,750 | — | — |
| 2025-06-20 | Foster Jonathan P. | Officer | −Tax w/h | 661 | $0.27 | $178 |
| 2025-06-20 | Foster Jonathan P. | Officer | +Exercise | 2,711 | — | — |
| 2025-06-16 | KLEMP WALTER V | Director,Officer | −Tax w/h | 406 | $0.69 | $280 |
| 2025-06-16 | KLEMP WALTER V | Director,Officer | +Exercise | 1,667 | — | — |
| 2025-06-16 | Foster Jonathan P. | Officer | +Exercise | 833 | — | — |
| 2025-06-16 | Foster Jonathan P. | Officer | −Tax w/h | 203 | $0.69 | $140 |
| 2024-07-02 | KLEMP WALTER V | Director,Officer | +Exercise | 982 | — | — |
| 2024-07-02 | KLEMP WALTER V | Director,Officer | −Tax w/h | 240 | $3.57 | $857 |
| 2024-06-22 | KLEMP WALTER V | Director,Officer | +Exercise | 8,990 | — | — |
| 2024-06-22 | KLEMP WALTER V | Director,Officer | −Tax w/h | 2,190 | $3.74 | $8,191 |
| 2024-06-22 | Foster Jonathan P. | Officer | +Exercise | 4,329 | — | — |
| 2024-06-22 | Foster Jonathan P. | Officer | −Tax w/h | 1,053 | $3.74 | $3,938 |
| 2024-06-22 | PICKER DONALD H | Officer | +Tax w/h | 524 | $3.74 | $1,960 |
| 2024-06-22 | PICKER DONALD H | Officer | +Exercise | 1,766 | — | — |
| 2024-06-20 | KLEMP WALTER V | Director,Officer | −Tax w/h | 914 | $3.78 | $3,455 |
| 2024-06-20 | KLEMP WALTER V | Director,Officer | +Exercise | 3,750 | — | — |
| 2024-06-20 | Foster Jonathan P. | Officer | −Tax w/h | 636 | $3.78 | $2,404 |
| 2024-06-20 | Foster Jonathan P. | Officer | +Exercise | 2,712 | — | — |
| 2024-06-20 | PICKER DONALD H | Officer | −Tax w/h | 320 | $3.78 | $1,210 |
| 2024-06-20 | PICKER DONALD H | Officer | +Exercise | 1,078 | — | — |
| 2024-06-16 | KLEMP WALTER V | Director,Officer | −Tax w/h | 406 | $4.14 | $1,681 |
| 2024-06-16 | KLEMP WALTER V | Director,Officer | +Exercise | 1,667 | — | — |
| 2024-06-16 | Foster Jonathan P. | Officer | −Tax w/h | 196 | $4.14 | $811 |
| 2024-06-16 | Foster Jonathan P. | Officer | +Exercise | 834 | — | — |
| 2023-12-26 | KLEMP WALTER V | Director,Officer | +Buy | 188,404 | $0.69 | $129,999 |
| 2023-12-26 | George Robert E. | Director | +Buy | 14,493 | $0.69 | $10,000 |
| 2023-12-26 | Foster Jonathan P. | Officer | +Buy | 28,986 | $0.69 | $20,000 |
| 2023-07-11 | KLEMP WALTER V | Director,Officer | +Exercise | 13,204 | — | — |
| 2023-07-11 | KLEMP WALTER V | Director,Officer | −Tax w/h | 3,216 | $0.59 | $1,897 |
| 2023-07-02 | KLEMP WALTER V | Director,Officer | −Tax w/h | 3,584 | $0.58 | $2,079 |
| 2023-07-02 | KLEMP WALTER V | Director,Officer | +Exercise | 14,717 | — | — |
| 2023-06-20 | KLEMP WALTER V | Director,Officer | −Tax w/h | 13,697 | $0.57 | $7,807 |
| 2023-06-20 | KLEMP WALTER V | Director,Officer | +Exercise | 56,250 | — | — |
| 2023-06-20 | Foster Jonathan P. | Officer | −Tax w/h | 9,676 | $0.57 | $5,515 |
| 2023-06-20 | Foster Jonathan P. | Officer | +Exercise | 40,667 | — | — |
| 2023-06-20 | PICKER DONALD H | Officer | +Exercise | 16,167 | — | — |
| 2023-06-20 | PICKER DONALD H | Officer | −Tax w/h | 4,267 | $0.57 | $2,432 |
| 2023-06-16 | KLEMP WALTER V | Director,Officer | −Tax w/h | 6,088 | $0.57 | $3,470 |
| 2023-06-16 | KLEMP WALTER V | Director,Officer | +Exercise | 25,000 | — | — |
| 2023-06-16 | Foster Jonathan P. | Officer | −Tax w/h | 3,044 | $0.57 | $1,735 |
| 2023-06-16 | Foster Jonathan P. | Officer | +Exercise | 12,500 | — | — |
| 2022-11-25 | KLEMP WALTER V | Director,Officer | +Buy | 45,000 | $1.28 | $57,600 |
| 2022-11-21 | KLEMP WALTER V | Director,Officer | +Buy | 22,500 | $1.15 | $25,875 |
| 2022-11-17 | KLEMP WALTER V | Director,Officer | +Buy | 24,742 | $1.02 | $25,237 |
| 2022-11-16 | KLEMP WALTER V | Director,Officer | +Buy | 85,213 | $0.97 | $82,657 |
| 2022-07-11 | KLEMP WALTER V | Director,Officer | −Tax w/h | 3,215 | $1.68 | $5,401 |
| 2022-07-11 | KLEMP WALTER V | Director,Officer | +Exercise | 13,204 | — | — |
| 2022-07-11 | KLEMP WALTER V | Director,Officer | +Exercise | 13,204 | — | — |
| 2022-07-11 | KLEMP WALTER V | Director,Officer | −Tax w/h | 3,215 | $1.68 | $5,401 |
| 2022-07-02 | KLEMP WALTER V | Director,Officer | +Exercise | 14,717 | — | — |
| 2022-07-02 | KLEMP WALTER V | Director,Officer | −Tax w/h | 3,584 | $1.47 | $5,268 |
| 2022-07-02 | KLEMP WALTER V | Director,Officer | +Exercise | 14,717 | — | — |
| 2022-07-02 | KLEMP WALTER V | Director,Officer | −Tax w/h | 3,584 | $1.47 | $5,268 |
| 2022-06-16 | Foster Jonathan P. | Officer | +Exercise | 12,500 | — | — |
| 2022-06-16 | Foster Jonathan P. | Officer | −Tax w/h | 3,044 | $1.33 | $4,049 |
| 2022-06-16 | KLEMP WALTER V | Director,Officer | +Exercise | 25,000 | — | — |
| 2022-06-16 | KLEMP WALTER V | Director,Officer | −Tax w/h | 6,088 | $1.33 | $8,097 |
| 2021-07-11 | KLEMP WALTER V | Director,Officer | −Tax w/h | 3,215 | $3.56 | $11,445 |
| 2021-07-11 | KLEMP WALTER V | Director,Officer | +Exercise | 13,205 | — | — |
| 2021-07-02 | KLEMP WALTER V | Director,Officer | −Tax w/h | 3,584 | $3.56 | $12,759 |
| 2021-07-02 | KLEMP WALTER V | Director,Officer | +Exercise | 14,718 | — | — |
| 2020-07-13 | KLEMP WALTER V | Director,Officer | −Tax w/h | 19,292 | $0.86 | $16,591 |
| 2020-07-13 | KLEMP WALTER V | Director,Officer | +Exercise | 79,227 | — | — |
| 2017-08-16 | Priebe Waldemar | TenPercentOwner | −Sell | 100,000 | $1.70 | $170,000 |
| 2017-08-16 | KLEMP WALTER V | Director,Officer,TenPercentOwner | −Sell | 100,000 | $1.70 | $170,000 |
| 2017-05-11 | KLEMP WALTER V | Director,Officer,TenPercentOwner | +Buy | 12,000 | $0.81 | $9,720 |
| 2017-05-05 | Northcut Jacqueline | Director | +Buy | 1,000 | $0.82 | $820 |
| 2017-04-28 | George Robert E. | Director | +Buy | 1,000 | $0.94 | $940 |
| 2017-04-25 | Foster Jonathan P. | Officer | +Buy | 10,000 | $0.86 | $8,600 |
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.
