CIK 0001033767 · Large accelerated filer
UNITED MICROELECTRONICS CORP
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- UMC
- Exchange
- NYSE
- Industry
- Semiconductors & Related Devices
- FY end
- Dec 31
- Incorporated
- Taiwan
- Entity type
- other
- Phone
- 886-2-2658-9168
- Business address
- 8F, NO.68, SEC. 1, NEIHU RD.,, TAIPEI, Taiwan, 11493
- Open-market buys, last 90 days
- $0
- in 0 filings
- Open-market sales, last 90 days
- $230,429,600
- in 2 filings
Net −$230,429,600. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
Who's trading
90 days
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2026-09-22 | LIN JEN-TSUNG Vice President | Sale | −10,000 | $163.00 | $1.6M | 1,172,140 |
| 2026-09-17 | Liu Chitung CFO & SVP | Sale | −400,000 | $145.00 | $58.0M | 2,639,757 |
| 2026-09-16 | Liu Chitung CFO & SVP | Sale | −1,200,000 | $142.33 | $170.8M | 3,039,757 |
| 2026-09-07 | Liu Chitung CFO & SVP | Other acquisition | +1,000,000 | 4,322,917 | ||
| 2026-09-07 | Liu Chitung CFO & SVP | Other disposition | −1,000,000 | 1,000,000 | ||
| 2026-07-13 | Liu Chitung CFO & SVP | Sale | −1,900,000 | $154.89 | $294.3M | 3,322,917 |
| 2026-06-30 | HU CHE-JEN Vice President | Sale | −10,000 | $171.30 | $1.7M | 3,214,080 |
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