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$UMC
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$UMC 3 SEC Filings

Filed On Filing
18 Sep 2026 Form 3: Yen Hung-yu, CHRO & VP

Holds 339,682 shares of Common Shares

07 May 2026 Form 3: Tan Wen Yi, Vice President

Holds 650,600 shares of Common Shares

07 May 2026 Form 3: Lu Chia-ao, Vice President

Holds 170,000 shares of Common Shares

07 May 2026 Form 3: Liao Ching Yu, General Counsel & VP

Holds 732,480 shares of Common Shares

07 May 2026 Form 3: Chen Jin-shuang, CHRO & VP

Holds 2,343,080 shares of Common Shares

07 May 2026 Form 3: Kuo Lin-wu, Vice President

Holds 913,080 shares of Common Shares

07 May 2026 Form 3: Lin Ming-yu, Vice President

Holds 3,543,005 shares of Common Shares

07 May 2026 Form 3: Hsu Shu-fen, Vice President

Holds 1,560,080 shares of Common Shares

07 May 2026 Form 3: Liu Shih-wei, Vice President

Holds 2,183,080 shares of Common Shares

07 May 2026 Form 3: Shen Ying-sheng, Vice President

Holds 1,313,080 shares of Common Shares

07 May 2026 Form 3: Hu Che-jen, Vice President

Holds 3,224,080 shares of Common Shares

07 May 2026 Form 3: Hsu Shih-chieh, Vice President

Holds 2,075,080 shares of Common Shares

07 May 2026 Form 3: Cheng Tzyy-ming, Vice President

Holds 2,868,080 shares of Common Shares

07 May 2026 Form 3: Tzou Shih-fang, Vice President

Holds 1,462,188 shares of Common Shares

07 May 2026 Form 3: Chen Ming-tsung, Vice President

Holds 2,484,660 shares of Common Shares

07 May 2026 Form 3: Chuang Yu-chih, Vice President

Holds 1,199,331 shares of Common Shares

07 May 2026 Form 3: Lin Jen-tsung, Vice President

Holds 1,229,660 shares of Common Shares

07 May 2026 Form 3: Chang Oliver, SVP

Holds 4,819,289 shares of Common Shares

07 May 2026 Form 3: Hung Kuei-chun, SVP

Holds 3,879,566 shares of Common Shares

07 May 2026 Form 3: Wu Chung-hsien, CISO & SVP

Holds 3,685,584 shares of Common Shares

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