| Month | Name | Total no. shares held | Percent Holding |
|---|---|---|---|
| Mar 31, 2025 | Oberweis Asset Management Inc | 333,800 | 1.70% |
| Feb 28, 2025 | Oberweis Asset Management Inc | 333,800 | 1.70% |
| Dec 31, 2024 | Oberweis Asset Management Inc | 166,900 | 0.85% |
| Sep 30, 2023 | Oberweis Asset Management Inc | 0 | 0.00% |
| Aug 31, 2023 | Oberweis Asset Management Inc | 0 | 0.00% |
| Jul 31, 2023 | Oberweis Asset Management Inc | 0 | 0.00% |
| Jun 30, 2023 | Oberweis Asset Management Inc | 0 | 0.00% |
| May 31, 2023 | Oberweis Asset Management Inc | 0 | 0.00% |