Record Date：2025/04/21
| Name of Major Shareholder | Number of Shares Held (shares) | Percentage of Shareholding(%) |
| Cheng Chu-ming | 6,505,291 | 18.72% |
| Welch Allyn,Inc. | 4,977,908 | 14.32% |
| Advantech Capital Investment Co., Ltd. | 1,485,893 | 4.27% |
| Hsu Kung-wei | 663,119 | 1.91% |
| Chuang Chien-hsin | 613,000 | 1.76% |
| Kuo Che-jung | 600,636 | 1.73% |
| Yuqun Optical Technology Co., Ltd. | 566,499 | 1.63% |
| Chuang Ai-ling | 518,000 | 1.49% |
| Li Yu-tsung | 482,938 | 1.39% |
| Ruan Yung-chih | 441,027 | 1.27% |
