Shareholding Structure
March 26, 2022
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Government Agencies
Financial Institutions
Other Institutional Investors
Domestic 
Foreign Institutions &
Major Shareholders
March 26, 2022
| Major Shareholders | Total Shares Owned(share) | Ownership Percentage(%) |
| Microbio Co.,Ltd. | 78,639,827 | 20.26 |
| Richard M. Tsai | 28,840,763 | 7.43 |
| Diamond Bio Fund Inc. | 22,615,737 | 5.83 |
| Fubon Life Insurance Co., Ltd. | 15,391,892 | 3.97 |
| Daniel M. Tsai | 5,872,990 | 1.51 |
| JPMorgan Chase Bank N.A. Taipei Branch in Custody for Vanguard Emerging Markets Stock Index Fund, a series of Vanguard International Equity Index Funds | 4,145,000 | 1.07 |
| Jing Ying Investment Co., Ltd. | 3,850,000 | 0.99 |
| JPMorgan Chase Bank N.A. Taipei Branch in Custody for Vanguard Total International Stock Index Fund, a series of Vanguard Star Funds | 3,801,000 | 0.98 |
| Ishares MSCI Taiwan ETF Fund | 3,021,000 | 0.78 |
| Jie Wang | 2,601,904 | 0.67 |
