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I

Iroc Co 3555.TWO · TWD

Information Technology · Taipei Exchange · 🇹🇼 Taiwan

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121.00

+4.31%

Close of 9 Nov 2026, in TWD

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Reference data, closing prices and charts across 45,000 companies, plus crypto, commodities and currencies.

Largest shareholders

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

HolderSharesStakeChangeFiled
ADATA Technology Co Ltd14.3m35.87%—31 Oct 2025
Zhao Long Investment Corporation3.1m7.82%—31 Oct 2025
Liwanli Innovation Co Ltd2.9m7.34%—31 Oct 2025
Ying Yi Investment Corp.1.9m4.73%—31 Oct 2025
YuanFang Investment Co., Ltd.1.5m3.81%—31 Oct 2025
Yi Ying Investment Corp.1.2m2.99%—31 Oct 2025
Tu (Shui Cheng)980k2.45%—31 Oct 2025
Huang (Qicheng)863k2.16%—31 Oct 2025
Ding Fan Investment Ltd.695k1.74%—31 Oct 2025
Yih Sheng Investment665k1.66%—31 Oct 2025
Chen (Li Pai)268k0.67%—31 Aug 2025
Lin (Wan Ching-aa)184k0.46%—31 Oct 2025
Hu (Xing Rui)173k0.43%—31 Oct 2025
Mei Ying Investment Ltd.6k0.01%—31 Oct 2025

Sources and methodology

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