SEC Form 3 · accession 0001193125-26-395009
UNITED MICROELECTRONICS CORP · UMC
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Hung-Yu Yen
Officer — CHRO & VP
Period of report
Sep 11, 2026
Accepted (ET)
Sep 18, 2026 · 6:14 am EDT
Rule 10b5-1 plan
unknown — predates the checkbox
Issuer CIK
0001033767
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common SharesF1 | holding | — | — | — | 339,682 | D |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1Includes 337,500 shares of Restricted Stock Award (RSA) and a specified number of shares subject to the RSA will vest annually on December 5 from 2026 to 2029.
Remarks
Exhibit List Exhibit 24: Power of Attorney