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United Microelectronics 2303.TW · TWD

Information Technology · Semiconductors & Semiconductor Equipment · Taiwan Stock Exchange · 🇹🇼 Taiwan

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92.00

-6.50%

Close of 6 Nov 2026, in TWD

Largest shareholders

As filed, so dates differ, and a group and its funds can both appear.

HolderSharesStakeChangeFiled
Capital Investment Trust Corporation706.7m5.61%−142m31 Dec 2025
Cathay Securities Investment Trust Co., Ltd.659.4m5.23%−39.5m31 Dec 2025
Yuanta Securities Investment Trust Co., Ltd.467.2m3.71%−33m31 Dec 2025
Hsun Chieh Investment Co., Ltd.441.4m3.50%—31 Jan 2026
The Vanguard Group, Inc.366.8m2.91%+7.6m31 Jan 2026
BlackRock Institutional Trust Company, N.A.316.9m2.51%+17.5m31 Jan 2026
Silicon Integrated Systems Corp266.6m2.11%—31 Jan 2026
Taiwan Life Insurance Co Ltd218.2m1.73%—31 Dec 2025
Fuh Hwa Securities Investment Trust Co., Ltd.207.5m1.65%−6.4m31 Dec 2025
Yan Yuan Investments Company Ltd.193m1.53%—31 Dec 2025
China Life Insurance Co., Ltd.187.9m1.49%—31 Dec 2025
BlackRock Advisors (UK) Limited177.2m1.41%+9.7m31 Jan 2026
Geode Capital Management, L.L.C.113.4m0.90%+45k31 Jan 2026
Dimensional Fund Advisors, L.P.97m0.77%+29k31 Jan 2026
Amundi Asset Management, SAS85.8m0.68%+576k31 Jan 2026

Sources and methodology

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