優盛 (4121)
優盛 is a TPEx-listed company in Biotech & Medical Care. Revenue for September 2026 was NT$328.61M, up 9.2% from a year earlier. EPS over the last four quarters totals -NT$0.50.
Company profile
Data as of 2026-10-14
- Market
- TPEx-listed
- Industry
- Biotech & Medical Care
- Listed
- 2003-07-25
- Founded
- 1988-11-02
- Paid-in capital
- NT$831.11M
- Common shares issued
- 83,111,045
- Legal name
- 優盛醫學科技股份有限公司
- Website
- https://www.rossmax.com
Monthly revenue
Data as of 2026-10-15
| Month | Revenue | MoM | YoY |
|---|---|---|---|
| 2026-09 | NT$328.61M | -1.1% | +9.2% |
| 2026-08 | NT$332.24M | +2.4% | +4.0% |
Year to date: +0.8% vs. last year (Jan–Sep 2026)
Earnings per share (EPS)
Data as of 2026-06-30
| Quarter | EPS (NT$) |
|---|---|
| 2026 Q2 | -0.21 |
| 2026 Q1 | -0.11 |
| 2025 Q4 | -0.09 |
| 2025 Q3 | -0.09 |
| 2025 Q2 | -0.06 |
| 2025 Q1 | -0.12 |
| 2024 Q4 | -0.15 |
| 2024 Q3 | -0.15 |
Last four quarters: -NT$0.50
Dividends
Data as of 2026-10-14
| Period | Cash (NT$) | Stock (NT$) | Ex-dividend | Ex-rights | Paid |
|---|---|---|---|---|---|
| 2025 年度 | 0.00 | 0.00 | — | — | — |
Shareholder structure
Data as of 2026-10-16
| Holding range | Holders | Share of total |
|---|---|---|
| 1–999 shares | 44,052 | 0.6% |
| 1,000–5,000 shares | 5,965 | 14.6% |
| 5,001–10,000 shares | 865 | 8.2% |
| 10,001–15,000 shares | 227 | 3.5% |
| 15,001–20,000 shares | 158 | 3.5% |
| 20,001–30,000 shares | 108 | 3.3% |
| 30,001–40,000 shares | 66 | 2.8% |
| 40,001–50,000 shares | 33 | 1.8% |
| 50,001–100,000 shares | 55 | 4.8% |
| 100,001–200,000 shares | 24 | 4.1% |
| 200,001–400,000 shares | 10 | 3.1% |
| 400,001–600,000 shares | 5 | 3.0% |
| 600,001–800,000 shares | 0 | 0.0% |
| 800,001–1,000,000 shares | 2 | 2.1% |
| 1,000,001+ shares | 12 | 44.5% |
TDCC data for 2026-10-16: 12 holders own more than 1,000 lots (44.5% of shares), and 44,052 hold less than one lot (0.6%).
Institutional net buying (last 20 trading days)
Data as of 2026-10-19
| Date | Foreign | Trust | Dealers | Total |
|---|---|---|---|---|
| 2026-10-19 | -5 | 0 | 0 | -5 |
| 2026-10-16 | 59 | 0 | 0 | 59 |
| 2026-10-15 | 5 | 0 | 0 | 5 |
| 2026-10-14 | -2 | 0 | 0 | -2 |
| 2026-10-13 | -10 | 0 | 0 | -10 |
| 2026-10-12 | -21 | 0 | 0 | -21 |
| 2026-10-08 | 5 | 0 | 0 | 5 |
| 2026-10-07 | 4 | 0 | 0 | 4 |
| 2026-10-06 | -4 | 0 | 0 | -4 |
| 2026-10-05 | -6 | 0 | 0 | -6 |
| 2026-10-02 | -4 | 0 | -1 | -5 |
| 2026-10-01 | -4 | 0 | 0 | -4 |
| 2026-09-30 | 2 | 0 | 0 | 2 |
| 2026-09-29 | -1 | 0 | 0 | -1 |
| 2026-09-24 | -1 | 0 | 1 | 0 |
| 2026-09-23 | 0 | 0 | 0 | 0 |
| 2026-09-22 | -8 | 0 | 0 | -8 |
| 2026-09-21 | 5 | 0 | 0 | 5 |
| 2026-09-18 | 1 | 0 | 0 | 1 |
| 2026-09-17 | 2 | 0 | 0 | 2 |
Unit: lots (1,000 shares). Over the last 20 trading days, institutions were net buyers of 17 lots.
Price (official close)
Data as of 2026-10-19
Last close NT$12.85 (2026-10-19); 52-week range NT$12.55–20.85.
Sources
- Source: Taiwan Stock Exchange and Taipei Exchange public data
- Source: Taiwan Stock Exchange and Taipei Exchange public data
- Source: Market Observation Post System (MOPS)
- Source: Taiwan Stock Exchange and Taipei Exchange public data
- Source: Taiwan Depository & Clearing Corporation public data
- Source: Taiwan Stock Exchange and Taipei Exchange public data
- Source: Taiwan Stock Exchange and Taipei Exchange public data
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