| Month | Name | Total no. shares held | Percent Holding |
|---|---|---|---|
| Mar 31, 2025 | Oberweis Asset Management Inc | 287,200 | 0.71% |
| Feb 28, 2025 | Oberweis Asset Management Inc | 287,200 | 0.70% |
| Jan 31, 2025 | Oberweis Asset Management Inc | 253,600 | 0.62% |
| Dec 31, 2024 | Oberweis Asset Management Inc | 143,600 | 0.35% |
| Dec 31, 2024 | Oberweis Asset Management Inc | 253,600 | 0.61% |
| Nov 30, 2024 | Oberweis Asset Management Inc | 253,600 | 0.61% |
| Sep 30, 2024 | Oberweis Asset Management Inc | 126,800 | 0.31% |
| Jun 30, 2023 | Oberweis Asset Management Inc | 0 | 0.00% |
| May 31, 2023 | Oberweis Asset Management Inc | 0 | 0.00% |