| Month | Name | Total no. shares held | Percent Holding |
|---|---|---|---|
| Mar 31, 2025 | Oberweis Asset Management Inc | 365,600 | 0.86% |
| Feb 28, 2025 | Oberweis Asset Management Inc | 365,600 | 0.88% |
| Jan 31, 2025 | Oberweis Asset Management Inc | 324,000 | 0.78% |
| Dec 31, 2024 | Oberweis Asset Management Inc | 182,800 | 0.43% |
| Dec 31, 2024 | Oberweis Asset Management Inc | 324,000 | 0.78% |
| Nov 30, 2024 | Oberweis Asset Management Inc | 324,000 | 0.78% |
| Sep 30, 2024 | Oberweis Asset Management Inc | 162,000 | 0.39% |