GCS Holdings Ownership

Who are the major shareholders and have insiders been buying or selling?


Recent Insider Transactions

Insider Trading Volume

Insider Buying: Insufficient data to determine if insiders have bought more shares than they have sold in the past 3 months.


Ownership Breakdown

What is the ownership structure of 4991?
Owner TypeNumber of SharesOwnership Percentage
Institutions4,347,1653.89%
Private Companies7,251,0636.48%
Individual Insiders18,401,77016.5%
Public Companies28,228,00025.2%
General Public53,606,92647.9%

Dilution of Shares: Shareholders have not been meaningfully diluted in the past year.


Top Shareholders

Top 12 shareholders own 52.07% of the company
OwnershipNameSharesCurrent ValueChange %Portfolio %
25.2%
ENNOSTAR Inc.
28,228,000NT$1.4b0%no data
6.64%
Ta-Lun Huang
7,421,772NT$362.6m0%no data
4.42%
Yu-Zhen Chen
4,943,000NT$241.5m0%no data
4.25%
Zhuo Rui Co., Ltd.
4,750,063NT$232.0m0%no data
3.13%
Ronly Venture Corp.
3,500,000NT$171.0m0%5.4%
2.72%
Shi-Han Hsieh
3,043,000NT$148.7m0%no data
2.24%
Chuan Wei Investment Co., Ltd.
2,500,000NT$122.1m0%no data
2.23%
Mei-Yu He
2,488,350NT$121.6m0%no data
0.76%
Dimensional Fund Advisors LP
847,165NT$41.4m-2.66%no data
0.45%
Bau Ann
502,007NT$24.5m0%no data
0.0033%
Tsung-Lin Tseng
3,641NT$178.1k0%no data
0.00089%
Ganrich Semiconductor Corporation
1,000NT$48.6k0%no data
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