InsiderTrades

Form 4 for UMC UNITED MICROELECTRONICS CORP

Accepted 2026-06-30 21:48:56 ET · period of report 2026-06-30 · accession 0001193125-26-291233 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
2026-06-30 21:48 2026-06-30 UMC HU CHE-JEN VP S - Sale $171.30 -10.0K 3.21M -0.3% -$1.71M

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Shares 2026-06-30 S D 10,000 $171.30 3,214,080 D — — (F1) New Taiwan Dollars (F2) Includes 828,800 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.