| Month | Name | Total no. shares held | Percent Holding |
|---|---|---|---|
| May 15, 2025 | Dr. David C. Chang, Phd | 307,744 | 0.77% |
| May 16, 2024 | Dr. David C. Chang, Phd | 252,572 | 0.63% |
| May 18, 2023 | Dr. David C. Chang, Phd | 229,249 | 0.57% |
| May 19, 2022 | Dr. David C. Chang, Phd | 205,926 | 0.51% |