GBAF Logo
Global Banking & Finance Awards® 2026 Nominations open, free to enter Nominate now →
S

Sea Sonic Electronics Co 6203.TWO · TWD

Information Technology · Taipei Exchange · 🇹🇼 Taiwan

Compare

50.00

0.00%

Close of 9 Nov 2026, in TWD

Search any instrument

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
Chang (Cheng Tsung)21.1m25.57%—30 Apr 2025
Wei (Chin Hua)10.2m12.34%+9k30 Apr 2025
QingHai Co., Ltd.6.4m7.76%—30 Apr 2025
Chang (Hsiu Cheng-a)2.1m2.58%—30 Apr 2025
Lin (Shui Chuan)2m2.39%—30 Apr 2025
Yang (Li Ying-a)1.1m1.32%—30 Apr 2025
Chang (Ya Ching)796k0.97%—30 Apr 2025
Chang (Chi Ling)771k0.94%—30 Apr 2025
Ming-Kwong Investment Co., Ltd.697k0.85%—30 Apr 2025
LiYing Investment Co., Ltd.668k0.81%—30 Apr 2025
Chang (Yun Chi)592k0.72%—30 Apr 2025
Dimensional Fund Advisors, L.P.579k0.70%—31 Jul 2025
Dimensional Fund Advisors, Ltd.74k0.09%+5k31 Jul 2025
State Street Global Advisors (US)68.6k0.08%—31 Jul 2025
American Century Investment Management, Inc.1k0.00%—31 Jul 2025

Sources and methodology

Data on this tab
Our data supplier
Chart on the Overview
TradingView

Nothing here is investment advice. Prices can be delayed or wrong, so check with the exchange before relying on them. Data for this page. How we cover markets.