3Filing Date: Sep 18, 2026
UNITED MICROELECTRONICS CORP (UMC)
Initial Statement of Beneficial Ownership
View SEC Filing
ACC: 0001193125-26-395009
Total Value$0
Trades1
Insiders1
Transaction Details
YEN HUNG-YU
CHRO & VP·Direct
Common Shares
Shares0
Price-
Total Value$0
Shares Owned After339.68K
Footnotes ▸
Includes 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.
Post-Transaction Holdings
YEN HUNG-YU · CHRO & VP
| Security | Shares | Change |
|---|---|---|
| Common Shares | 339.68K | - |
Original SEC Filing Textexpand_more
=== SEC Form 3 — Statement of Changes in Beneficial Ownership ===
Document Type: 3
Period of Report: 2026-09-11
--- Issuer ---
Name: UNITED MICROELECTRONICS CORP (UMC)
CIK: 0001033767
--- Reporting Owner ---
Name: YEN HUNG-YU
CIK: 0002155480
Role: Officer (CHRO & VP)
--- Holdings ---
[Holding #1]
Security: Common Shares
Ownership: D (Direct)
Footnotes:
[F1] Includes 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.
--- Footnotes (Complete Index) ---
F1: Includes 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.
--- Signature ---
/s/ /s/Chitung Liu, attorney-in-fact (2026-09-18)