| Month | Name | Total no. shares held | Percent Holding |
|---|---|---|---|
| Mar 31, 2025 | Oberweis Asset Management Inc | 1,006,000 | 1.20% |
| Feb 28, 2025 | Oberweis Asset Management Inc | 1,006,000 | 1.20% |
| Jan 31, 2025 | Oberweis Asset Management Inc | 807,800 | 0.97% |
| Dec 31, 2024 | Oberweis Asset Management Inc | 503,000 | 0.60% |
| Dec 31, 2024 | Oberweis Asset Management Inc | 807,800 | 0.97% |
| Nov 30, 2024 | Oberweis Asset Management Inc | 807,800 | 0.97% |
| Sep 30, 2024 | Oberweis Asset Management Inc | 403,900 | 0.48% |