Liu Chitung's Form 4 filing
United Microelectronics Corp (UMC) · filed Sep 17, 2026
- Accession no.
- 0001193125-26-393652
- Filed
- Sep 17, 2026, 6:07 AM ET
- Trade date
- Sep 16-17, 2026
- Filing delay
- 1 day
- Rule 10b5-1 plan
- Not checked
This filing lists 2 non-derivative transactions. It was filed 1 day after the trade.
Reporting owners
A Form 4 can have several reporting owners, such as a person and a fund they control. Trade tables show the first one.
| Owner | Relationship to the company |
|---|---|
| Liu ChitungCIK 0002120081 | Officer (CFO & SVP) |
Non-derivative securities (Table I)
Acquisitions and disposals of common stock and similar shares, one row per line on the filing.
| Trade date | Security | Transaction | Shares | Price | Value | Shares after | Ownership | Flags |
|---|---|---|---|---|---|---|---|---|
| Sep 16, 2026 | Common Shares | SSaleDisposed | −1,200,000 | TWD 142.33F1Price in TWD, as filed | −TWD 170,799,600 | 3,039,757 | Direct | Price outlier |
| Sep 17, 2026 | Common Shares | SSaleDisposed | −400,000 | TWD 145.00F1Price in TWD, as filed | −TWD 58,000,000 | 2,639,757 | Direct | Price outlier |
Footnotes and remarks
Livermore keeps the footnotes that transaction prices refer to, all footnotes of amendments (Form 4/A) and the filing's remarks. Other footnotes, such as how indirect holdings are held or the details of a trading plan, are only in the original on SEC EDGAR.
- F1
New Taiwan Dollars
Referenced by the price of 2 transactions in Table I.