TAIWAN · TWSE / TPEx
ROSSMAX
優盛 · 4121 · TPEx (OTC) · Biotech and medical
Share price, 2026-10-19NT$12.851 month +1.6% · 1 year -12.6%
Directors and supervisors hold12,560,81415.1% of shares issued
Of which pledged0.0%0
Major shareholders (10%+) hold9,783,64511.8% of shares issued
Revenue, 2026-09+9.2%year on year
Share price, last 12 months
Daily closes adjusted for cash and stock dividends, against the TAIEX index rebased to the same start. Prices from Yahoo Finance.
Directors, officers and major shareholders
Holdings reported for 2026-09. At election = shares held when the director was elected. Related parties = holdings of the person's spouse, minor children and nominees. One person with two roles is listed once.
| Person | Role | At election | Now | Of the company | Pledged | Related parties |
|---|---|---|---|---|---|---|
| 劉志平 | Chairman · Major shareholder (10%+) · Other | 9,320,645 | 9,783,645 | 11.77% | — | 875,739 |
| 蘇大成 | Director | — | 0 | — | — | — |
| 張淑娟 | Director · President · Other | 187,000 | 187,000 | 0.23% | — | — |
| 鄭明月 | Director | 1,384,000 | 2,500,000 | 3.01% | — | — |
| 吳志忠 | Director | 1,045 | 1,045 | 0.00% | — | — |
| 張清為 | Director | — | 0 | — | — | — |
| 季延平 | Independent director | — | 0 | — | — | — |
| 陳逸勛 | Independent director | — | 0 | — | — | — |
| 黃瓊玉 | Independent director | 89,124 | 89,124 | 0.11% | — | — |
| 洪清溪 | Assistant vice president | — | 180,174 | 0.22% | — | — |
| 曹輝通 | Assistant vice president | — | 31,640 | 0.04% | — | — |
| 林毓之 | Assistant vice president | — | 7,000 | 0.01% | — | — |
| 朱冠禹 | Assistant vice president | — | 5,000 | 0.01% | — | — |
| 王傳穎 | Assistant vice president | — | 6,000 | 0.01% | — | — |
| 詹秋琴 | Chief financial officer · Chief accountant | — | 3,104 | 0.00% | — | — |