ChipMOS TECHNOLOGIES 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 8150?
Owner Type	Number of Shares	Ownership Percentage
Individual Insiders	14,845,348	2.04%
Private Companies	54,450,000	7.49%
Public Companies	78,910,390	10.9%
Institutions	170,794,480	23.5%
General Public	408,239,908	56.1%

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

Top Shareholders

Top 25 shareholders own 41.29% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
10.9%	ASE Technology Holding Co., Ltd.	78,910,390	NT$2.5b	0%	no data
5.67%	Yann Yuan Investment Co., Ltd.	41,200,000	NT$1.3b	0%	no data
3.36%	Renaissance Technologies LLC	24,411,820	NT$786.1m	-1.32%	0.03%
3.17%	The Vanguard Group, Inc.	23,078,788	NT$743.1m	-0.97%	no data
2.32%	Dimensional Fund Advisors LP	16,896,167	NT$544.1m	-0.08%	no data
2.1%	BlackRock, Inc.	15,249,200	NT$491.0m	0.25%	no data
1.7%	Shih-Jye Cheng	12,394,938	NT$399.1m	0%	no data
1.6%	Chunghwa Post Co., Ltd.	11,600,000	NT$373.5m	0%	no data
1.52%	Acadian Asset Management LLC	11,053,749	NT$355.9m	-1.15%	0.03%
1.39%	Norges Bank Investment Management	10,097,840	NT$325.2m	0%	no data
1.26%	Taiwan Cooperative Financial Holding Co., Ltd., Asset Management Arm	9,187,000	NT$295.8m	0%	2.09%
1.13%	Mitsubishi UFJ Morgan Stanley Securities Co., Ltd., Securities & Investments Arm	8,218,000	NT$264.6m	0%	0.14%
0.89%	New Labor Pension Scheme	6,459,056	NT$208.0m	0%	0.02%
0.89%	Ensign Peak Advisors, Inc.	6,450,347	NT$207.7m	0%	0.01%
0.59%	Teachers Insurance and Annuity Association-College Retirement Equities Fund	4,313,000	NT$138.9m	0%	no data
0.48%	Mellon Investments Corporation	3,479,406	NT$112.0m	3.24%	no data
0.44%	Capital Investment Trust Corporation	3,236,018	NT$104.2m	0%	0.03%
0.42%	Herald Investment Management Ltd.	3,087,334	NT$99.4m	0%	0.2%
0.28%	The Renaissance Group LLC	2,066,720	NT$66.5m	-8.06%	0.08%
0.28%	Australian Super Pty Ltd	2,020,000	NT$65.0m	0%	no data
0.24%	Mega International Investment Trust Co., Ltd.	1,752,935	NT$56.4m	0%	0.13%
0.2%	O'Shaughnessy Asset Management, LLC	1,445,620	NT$46.5m	-31.8%	0.01%
0.19%	RAM Active Investments S.A.	1,402,300	NT$45.2m	0%	0.15%
0.16%	State Street Global Advisors, Inc.	1,160,875	NT$37.4m	-24.3%	no data
0.15%	Nomura Asset Management Taiwan Ltd.	1,121,348	NT$36.1m	0%	0.04%