2025Q4
| Insider | Role (last 12 mo) | Shares held | Filed at |
|---|---|---|---|
| Klemp Walter V | CEO | 750,000 | Nov 14, 2025 |
| Foster Jonathan P. | CFO | 400,000 | Nov 14, 2025 |
| Picker Donald H | Chief Science Officer | 200,000 | Nov 14, 2025 |
| Ploth Louis Jr | — | 200,000 | Jun 7, 2016 |
| Yan Joy | — | 150,000 | Nov 14, 2025 |
| Exec date | Filing date | Insider | Role | Signal | Confidence | Shares | % of shares | Under plan? | Amount (USD) |
|---|---|---|---|---|---|---|---|---|---|
| Nov 12, 2025 | Nov 14, 2025 | PICKER DONALD H | CSO | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Nov 12, 2025 | Nov 14, 2025 | Foster Jonathan P. | CFO | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Nov 12, 2025 | Nov 14, 2025 | KLEMP WALTER V | CEO | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Nov 12, 2025 | Nov 14, 2025 | Yan Joy | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Nov 12, 2025 | Nov 14, 2025 | Cermak Elizabeth | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Nov 12, 2025 | Nov 14, 2025 | CANNON MICHAEL D | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Nov 12, 2025 | Nov 14, 2025 | Climaco John M | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Nov 12, 2025 | Nov 14, 2025 | George Robert E. | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Nov 4, 2025 | Nov 6, 2025 | PICKER DONALD H | Chief Science Officer | Sell | 27.5 | -2,131 | -11.27% | ✗ | $1.1K |
| Nov 4, 2025 | Nov 6, 2025 | KLEMP WALTER V | CEO | Sell | 37.5 | -7,001 | -0.91% | ✗ | $3.5K |
| Nov 4, 2025 | Nov 6, 2025 | Foster Jonathan P. | CFO | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 20, 2025 | Jun 23, 2025 | Foster Jonathan P. | CFO | Buy | 95.0 | +268,555 | 532.93% | ✗ | $99.5K |
| Jun 20, 2025 | Jun 23, 2025 | KLEMP WALTER V | CEO | Buy | 95.0 | +672,571 | 336.12% | ✗ | $249.2K |
| Jun 20, 2025 | Jun 23, 2025 | PICKER DONALD H | Chief Science Officer | Sell | 27.5 | -693 | -3.52% | ✗ | $185 |
| Jun 16, 2025 | Jun 18, 2025 | Foster Jonathan P. | CFO | Sell | 27.5 | -203 | -1.66% | ✗ | $139.1 |
| Jun 16, 2025 | Jun 18, 2025 | KLEMP WALTER V | CEO | Sell | 37.5 | -406 | -0.69% | ✗ | $278.2 |
| Nov 4, 2024 | Nov 6, 2024 | Yan Joy | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Nov 4, 2024 | Nov 6, 2024 | Cermak Elizabeth | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Nov 4, 2024 | Nov 6, 2024 | Climaco John M | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Nov 4, 2024 | Nov 6, 2024 | George Robert E. | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Nov 4, 2024 | Nov 6, 2024 | CANNON MICHAEL D | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Nov 4, 2024 | Nov 6, 2024 | PICKER DONALD H | Chief Science Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Nov 4, 2024 | Nov 6, 2024 | Foster Jonathan P. | CFO | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Nov 4, 2024 | Nov 6, 2024 | KLEMP WALTER V | CEO | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jul 2, 2024 | Jul 5, 2024 | KLEMP WALTER V | CEO | Sell | 45.0 | -240 | -0.42% | ✗ | $856.8 |
| Jun 22, 2024 | Jun 25, 2024 | PICKER DONALD H | Chief Science Officer | Buy | 85.0 | +524 | 7.01% | ✗ | $2K |
| Jun 22, 2024 | Jun 25, 2024 | Foster Jonathan P. | CFO | Sell | 27.5 | -1,053 | -8.48% | ✗ | $3.9K |
| Jun 22, 2024 | Jun 25, 2024 | KLEMP WALTER V | CEO | Sell | 27.5 | -2,190 | -3.74% | ✗ | $8.2K |
| Jun 20, 2024 | Jun 21, 2024 | PICKER DONALD H | Chief Science Officer | Sell | 27.5 | -320 | -4.52% | ✗ | $1.2K |
| Jun 20, 2024 | Jun 21, 2024 | Foster Jonathan P. | CFO | Sell | 27.5 | -636 | -7.29% | ✗ | $2.4K |
| Jun 20, 2024 | Jun 21, 2024 | KLEMP WALTER V | CEO | Sell | 27.5 | -914 | -1.81% | ✗ | $3.5K |
| Jun 16, 2024 | Jun 18, 2024 | Foster Jonathan P. | CFO | Sell | 27.5 | -196 | -3.16% | ✗ | $811.4 |
| Jun 16, 2024 | Jun 18, 2024 | KLEMP WALTER V | CEO | Sell | 37.5 | -406 | -0.86% | ✗ | $1.7K |
| Dec 26, 2023 | Dec 27, 2023 | Foster Jonathan P. | CFO | Buy | 91.3 | +28,986 | 56.21% | ✗ | $20K |
| Dec 26, 2023 | Dec 27, 2023 | George Robert E. | Director | Buy | 91.3 | +14,493 | 8678.44% | ✗ | $10K |
| Dec 26, 2023 | Dec 27, 2023 | KLEMP WALTER V | CEO | Buy | 95.0 | +188,404 | 38.26% | ✗ | $130K |
| Jul 11, 2023 | Jul 13, 2023 | KLEMP WALTER V | CEO | Sell | 37.5 | -3,216 | -0.65% | ✗ | $1.9K |
| Jul 2, 2023 | Jul 5, 2023 | KLEMP WALTER V | CEO | Sell | 37.5 | -3,584 | -0.74% | ✗ | $2.1K |
| Jun 22, 2023 | Jun 26, 2023 | Foster Jonathan P. | CFO | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 22, 2023 | Jun 26, 2023 | KLEMP WALTER V | CEO | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 22, 2023 | Jun 26, 2023 | PICKER DONALD H | Chief Science Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 20, 2023 | Jun 22, 2023 | PICKER DONALD H | Chief Science Officer | Sell | 27.5 | -4,267 | -4.53% | ✗ | $2.4K |
| Jun 20, 2023 | Jun 22, 2023 | Foster Jonathan P. | CFO | Sell | 27.5 | -9,676 | -15.80% | ✗ | $5.5K |
| Jun 20, 2023 | Jun 22, 2023 | KLEMP WALTER V | CEO | Sell | 27.5 | -13,697 | -2.82% | ✗ | $7.8K |
| Jun 16, 2023 | Jun 20, 2023 | Foster Jonathan P. | CFO | Sell | 27.5 | -3,044 | -12.89% | ✗ | $1.7K |
| Jun 16, 2023 | Jun 20, 2023 | KLEMP WALTER V | CEO | Sell | 27.5 | -6,088 | -1.40% | ✗ | $3.5K |
| May 25, 2023 | May 26, 2023 | Yan Joy | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| May 25, 2023 | May 26, 2023 | Cermak Elizabeth | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| May 25, 2023 | May 26, 2023 | Climaco John M | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| May 25, 2023 | May 26, 2023 | CANNON MICHAEL D | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| May 25, 2023 | May 26, 2023 | George Robert E. | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Nov 25, 2022 | Nov 28, 2022 | KLEMP WALTER V | CEO | Buy | 95.0 | +45,000 | 12.33% | ✗ | $57.6K |
| Nov 21, 2022 | Nov 23, 2022 | KLEMP WALTER V | CEO | Buy | 86.3 | +22,500 | 6.57% | ✗ | $25.9K |
| Nov 16, 2022 | Nov 18, 2022 | KLEMP WALTER V | CEO | Buy | 95.0 | +109,955 | 47.31% | ✗ | $107.9K |
| Jul 2, 2022 | Jul 15, 2022 | KLEMP WALTER V | CEO | Sell | 27.5 | -3,584 | -1.59% | ✗ | $5.3K |
| Jul 11, 2022 | Jul 15, 2022 | KLEMP WALTER V | CEO | Sell | 27.5 | -3,215 | -1.36% | ✗ | $5.4K |
| Jun 20, 2022 | Jul 15, 2022 | KLEMP WALTER V | CEO | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jul 11, 2022 | Jul 13, 2022 | KLEMP WALTER V | CEO | Sell | 27.5 | -3,215 | -1.36% | ✗ | $5.4K |
| Jul 2, 2022 | Jul 6, 2022 | KLEMP WALTER V | CEO | Sell | 27.5 | -3,584 | -1.59% | ✗ | $5.3K |
| Jun 20, 2022 | Jun 22, 2022 | PICKER DONALD H | Chief Science Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 20, 2022 | Jun 22, 2022 | Foster Jonathan P. | CFO | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 20, 2022 | Jun 22, 2022 | KLEMP WALTER V | CEO | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 20, 2022 | Jun 22, 2022 | Climaco John M | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 20, 2022 | Jun 22, 2022 | George Robert E. | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 20, 2022 | Jun 22, 2022 | CANNON MICHAEL D | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 20, 2022 | Jun 22, 2022 | Cermak Elizabeth | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 20, 2022 | Jun 22, 2022 | Yan Joy | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 16, 2022 | Jun 21, 2022 | KLEMP WALTER V | CEO | Sell | 27.5 | -6,088 | -2.80% | ✗ | $8.1K |
| Jun 16, 2022 | Jun 21, 2022 | Foster Jonathan P. | CFO | Sell | 27.5 | -3,044 | -21.49% | ✗ | $4K |
| Mar 1, 2022 | Mar 2, 2022 | Yan Joy | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Mar 2, 2022 | Yan Joy | Director | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Jul 11, 2021 | Jul 12, 2021 | KLEMP WALTER V | CEO | Sell | 26.3 | -3,215 | -1.64% | ✗ | $11.4K |
| Jul 2, 2021 | Jul 6, 2021 | KLEMP WALTER V | CEO | Sell | 26.3 | -3,584 | -1.93% | ✗ | $12.8K |
| Jun 16, 2021 | Jun 21, 2021 | Foster Jonathan P. | CFO | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 16, 2021 | Jun 21, 2021 | PICKER DONALD H | Chief Science Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 16, 2021 | Jun 21, 2021 | KLEMP WALTER V | CEO | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 7, 2021 | Jun 9, 2021 | CANNON MICHAEL D | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 7, 2021 | Jun 9, 2021 | Cermak Elizabeth | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 7, 2021 | Jun 9, 2021 | Climaco John M | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 7, 2021 | Jun 9, 2021 | George Robert E. | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Oct 2, 2020 | Oct 5, 2020 | Cermak Elizabeth | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Oct 5, 2020 | Cermak Elizabeth | Director | Neutral | 52.5 | - | 0.00% | ✗ | - | |
| Aug 20, 2020 | Aug 24, 2020 | Priebe Waldemar | 10% Owner | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jul 13, 2020 | Jul 14, 2020 | KLEMP WALTER V | CEO | Sell | 26.3 | -19,292 | -1.84% | ✗ | $16.5K |
| Jul 2, 2020 | Jul 7, 2020 | KLEMP WALTER V | CEO | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jul 2, 2020 | Jul 7, 2020 | Foster Jonathan P. | CFO | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jul 2, 2020 | Jul 7, 2020 | PICKER DONALD H | Chief Science Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 15, 2020 | Jun 17, 2020 | CANNON MICHAEL D | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 15, 2020 | Jun 17, 2020 | Climaco John M | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 15, 2020 | Jun 17, 2020 | George Robert E. | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jul 11, 2019 | Jul 15, 2019 | CANNON MICHAEL D | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jun 6, 2018 | Jul 15, 2019 | KLEMP WALTER V | CEO | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jul 11, 2019 | Jul 15, 2019 | KLEMP WALTER V | CEO | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jul 11, 2019 | Jul 15, 2019 | George Robert E. | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jul 11, 2019 | Jul 15, 2019 | Climaco John M | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jul 11, 2019 | Jul 15, 2019 | PICKER DONALD H | Chief Science Officer | Neutral | 52.5 | - | 0.00% | ✗ | - |
| Jul 11, 2019 | Jul 15, 2019 | Foster Jonathan P. | CFO | Neutral | 52.5 | - | 0.00% | ✗ | - |
| May 22, 2019 | May 24, 2019 | George Robert E. | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| May 22, 2019 | May 24, 2019 | Climaco John M | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |
| May 22, 2019 | May 24, 2019 | CANNON MICHAEL D | Director | Neutral | 52.5 | - | 0.00% | ✗ | - |