| Month | Name | Total no. shares held | Percent Holding |
|---|---|---|---|
| Mar 31, 2025 | Oberweis Asset Management Inc | 549,400 | 1.29% |
| Feb 28, 2025 | Oberweis Asset Management Inc | 549,400 | 1.31% |
| Jan 31, 2025 | Oberweis Asset Management Inc | 529,400 | 1.26% |
| Dec 31, 2024 | Oberweis Asset Management Inc | 274,700 | 0.65% |
| Dec 31, 2024 | Oberweis Asset Management Inc | 529,400 | 1.26% |
| Nov 30, 2024 | Oberweis Asset Management Inc | 529,400 | 1.26% |
| Sep 30, 2024 | Oberweis Asset Management Inc | 264,700 | 0.63% |