United Microelectronics Corp (2303)

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Ticker: 2303 Exchange: TAI

• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings

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HU CHE-JEN

Vice President

1 sale — total 100,000 USD

Sale 30 Jun 2026

Value US$3,168,842.02 | Price 204.56 | Shares 60,526

Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other

Notification date	Transaction date	B/S Transaction type	Insider and/or position	Nb. shares Price Value	Number of shares	Price	Value	Details
2026-06-30	2026-06-30	S Sale	HU CHE-JEN Vice President Officer	60,526 +26.8% 204.56 US$3,168,842	60,526 +26.8%	204.56	US$3,168,842

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