Share ownership Test Research, Inc.

3030

TW0003030003

Semiconductor Equipment & Testing

End-of-day quote Taiwan S.E. Other stock markets 2026-03-06			5-day change	1st Jan Change
245.00 ^TWD	-1.61%		+9.62%	+27.94%

02-26	Test Research, Inc. Reports Earnings Results for the Full Year Ended December 31, 2025	CI
01-08	Test Research Logs NT$216 Million Profit in December	MT

Share class: Test Research, Inc.

	Vote	Quantity	Free-Float	Company-owned shares	Total Float
Stock A	1	236,216,000	146,491,000 ( 62.02 %)	0	62.02 %

Major shareholders: Test Research, Inc.

Name	Equities	%	Valuation
Chieh Yuan Chen 16.04 %	37,889,235	16.04 %	217 M NT$
Mei Hsing Yeh 7.34 %	17,338,054	7.34 %	99 M NT$
Der Shin Investment Co. Ltd. 6.725 %	15,885,174	6.725 %	91 M NT$
Der Sheng Investment Co. Ltd. 4.747 %	11,212,370	4.747 %	64 M NT$
C SUN MFG LTD. 1.624 %	3,835,000	1.624 %	22 M NT$
Chen Family 1.16 %	2,738,939	1.16 %	16 M NT$
Chiang Huai Lin 0.991 %	2,340,864	0.991 %	13 M NT$
Ming Chuan Tsai 0.4259 %	1,006,000	0.4259 %	6 M NT$
Chin Lung Chen 0.176 %	415,857	0.176 %	2 M NT$
Taiwan Cooperative Securities Investment Trust Co., Ltd. 0.072 %	169,999	0.072 %	972 348 NT$
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Breakdown by shareholder type

Individuals	26.13%
Other	11.47%
C Sun Mfg Ltd.	1.62%
Institutional	0.14%
Unknown	60.64%

Based on 1000 largest holdings

Geographical origin of shareholders

Individuals	26.13%
Taiwan	13.17%
United Kingdom	0.04%
Hong Kong	0.02%
Switzerland	0.01%

Based on 1000 largest holdings

Test Research, Inc. is a Taiwan-based company principally engaged in the manufacture and distribution of circuit board testing equipment. The Company mainly operates through two business segments. The Circuit Boards Testing Equipment segment is mainly engaged in the manufacturing of circuit board testing equipment. The Semiconductors Testing Equipment segment is engaged in the manufacturing of testing equipment for chips and end products. The Company is also engaged in the provision of labor services. The Company mainly distributes its products in domestic market and overseas markets, including the Peopleâ€™s Republic of China (the PRC), the United States of America (the USA) and other countries and regions.

Employees

Sector

Semiconductor Equipment & Testing

More about the company