IMOS · Chipmos Technologies Inc · Shareholders & Ownership

$61.65 +1.21 (+2.00%) Q2 2025 earnings call transcript

Market Cap

$2.10B

34.77M

Volume · Oct 28 21.98K Avg daily vol (3M) 92.28K

Every disclosed holder of IMOS in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

How the holder list picks a filing →

Who Owns IMOS

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions

No chart: shares outstanding cannot be set against these holders.

Holder group	Holders	Shares	% Out	Summed
Institutional (13F)	89	2,746,334	—	Yes
Insiders (Forms 3, 4, 5)	4	14,903,741	—	Yes
13D/G-only blocks	0	0	—	Yes
Registered funds (N-PORT, not summed)	14	109,851	—	No

% Out is unavailable: a foreign private issuer reports ordinary shares, a different unit from the listed shares.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of IMOS

One row per holder Every filing By ultimate parent

All 13F Funds Insiders 13D/G Non-US

#	Holder	Shares	% Out	Change	As of	Notes
1	Cheng Shih Jye Insider CIK 1345439 · Mar 16, 2026 Director, President, issuer-wide	12,404,938	—	—	Mar 16, 2026	Director, President, issuer-wide
2	Su Yu-Chiao Insider CIK 2114602 · Mar 13, 2026 Director, Vice President, issuer-wide	1,176,101	—	—	Mar 13, 2026	Director, Vice President, issuer-wide
3	RENAISSANCE TECHNOLOGIES LLC 13F CIK 1037389 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,105,890	—	-12,100	Jun 30, 2026	carried, not yet filed for the newest quarter
4	Tsai Teng-Yueh Insider CIK 2114129 · Mar 13, 2026 Executive Vice President, issuer-wide	1,092,572	—	—	Mar 13, 2026	Executive Vice President, issuer-wide
5	BlackRock, Inc. 13F CIK 2012383 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	255,464	—	+1,138	Jun 30, 2026	carried, not yet filed for the newest quarter
6	Hsu Yuan-Feng Insider CIK 2114114 · Mar 13, 2026 Executive Vice President, issuer-wide	230,130	—	—	Mar 13, 2026	Executive Vice President, issuer-wide
7	ACADIAN ASSET MANAGEMENT LLC 13F CIK 916542 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	197,066	—	-28,455	Jun 30, 2026	carried, not yet filed for the newest quarter
8	O'SHAUGHNESSY ASSET MANAGEMENT, LLC 13F CIK 1423442 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	172,425	—	+92,702	Jun 30, 2026	carried, not yet filed for the newest quarter
9	XY Capital Ltd 13F CIK 1933132 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	130,326	—	+130,326	Jun 30, 2026	carried, not yet filed for the newest quarter
10	DIMENSIONAL FUND ADVISORS LP 13F CIK 354204 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	88,685	—	-3,569	Jun 30, 2026	carried, not yet filed for the newest quarter
10.1	EMERGING MARKETS CORE EQUITY 2 PORTFOLIO Fund S000000978 · Registered fund · Jul 31, 2026 DFA INVESTMENT DIMENSIONS GROUP INC, not summed	60,690	—	0	Jul 31, 2026	DFA INVESTMENT DIMENSIONS GROUP INC, not summed
10.2	DIMENSIONAL EMERGING MARKETS VALUE FUND Fund S000001027 · Registered fund · Jul 31, 2026 DIMENSIONAL EMERGING MARKETS VALUE FUND, not summed	11,456	—	-4,677	Jul 31, 2026	DIMENSIONAL EMERGING MARKETS VALUE FUND, not summed
10.3	Dimensional World ex. U.S. Core Equity 2 ETF Fund S000070905 · Registered fund · Jul 31, 2026 Dimensional ETF Trust, not summed	5,791	—	+850	Jul 31, 2026	Dimensional ETF Trust, not summed
10.4	Dimensional Emerging Markets Value ETF Fund S000075157 · Registered fund · Jul 31, 2026 Dimensional ETF Trust, not summed	2,748	—	0	Jul 31, 2026	Dimensional ETF Trust, not summed
10.5	Emerging Markets Social Core Equity Portfolio Fund S000012960 · Registered fund · Jul 31, 2026 DFA INVESTMENT DIMENSIONS GROUP INC, not summed	2,049	—	0	Jul 31, 2026	DFA INVESTMENT DIMENSIONS GROUP INC, not summed
11	Vanguard Personalized Indexing Management, LLC 13F CIK 1767306 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	72,464	—	+3,754	Jun 30, 2026	carried, not yet filed for the newest quarter
12	ENVESTNET ASSET MANAGEMENT INC 13F CIK 1407543 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	53,138	—	-1,601	Jun 30, 2026	carried, not yet filed for the newest quarter
13	JANE STREET GROUP, LLC 13F CIK 1595888 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	52,853	—	+43,740	Jun 30, 2026	carried, not yet filed for the newest quarter
14	TWO SIGMA INVESTMENTS, LP 13F CIK 1179392 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	50,810	—	+20,589	Jun 30, 2026	carried, not yet filed for the newest quarter
15	Creative Planning 13F CIK 1540235 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	49,378	—	+4,549	Jun 30, 2026	carried, not yet filed for the newest quarter
16	MARSHALL WACE, LLP 13F CIK 1318757 · Exempt reporting adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	34,423	—	+1,820	Jun 30, 2026	carried, not yet filed for the newest quarter
17	RENAISSANCE GROUP LLC 13F CIK 944234 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	34,140	—	-1,040	Jun 30, 2026	carried, not yet filed for the newest quarter
18	Qube Research & Technologies Ltd 13F CIK 1729829 · Exempt reporting adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	32,641	—	+32,641	Jun 30, 2026	carried, not yet filed for the newest quarter
19	Caprock Group, LLC 13F CIK 1610769 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	30,909	—	+14,512	Jun 30, 2026	carried, not yet filed for the newest quarter
20	Ballentine Partners, LLC 13F CIK 1374889 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	26,847	—	+3,971	Jun 30, 2026	carried, not yet filed for the newest quarter
21	RHUMBLINE ADVISERS 13F CIK 1115418 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	25,707	—	+1,314	Jun 30, 2026	carried, not yet filed for the newest quarter
22	JPMORGAN CHASE & CO 13F CIK 19617 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	21,887	—	+21,807	Jun 30, 2026	carried, not yet filed for the newest quarter
23	SUSQUEHANNA INTERNATIONAL GROUP, LLP 13F CIK 1446194 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	20,814	—	+20,814	Jun 30, 2026	carried, not yet filed for the newest quarter
24	XTX Topco Ltd 13F CIK 1828301 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	19,773	—	+11,107	Jun 30, 2026	carried, not yet filed for the newest quarter
25	LVW Advisors, LLC 13F CIK 1576053 · Registered investment adviser · Sep 30, 2026	19,147	—	+249	Sep 30, 2026
26	SIGNATUREFD, LLC 13F CIK 1456048 · Registered investment adviser · Sep 30, 2026	18,890	—	-1,821	Sep 30, 2026
27	CITADEL ADVISORS LLC 13F CIK 1423053 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	17,647	—	-7,215	Jun 30, 2026	carried, not yet filed for the newest quarter
28	Trexquant Investment LP 13F CIK 1633445 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	16,441	—	+8,975	Jun 30, 2026	carried, not yet filed for the newest quarter
29	Kathmere Capital Management, LLC 13F CIK 1794543 · Registered investment adviser · Sep 30, 2026	13,301	—	-94	Sep 30, 2026
30	BANK OF AMERICA CORP /DE/ 13F CIK 70858 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	12,777	—	-145	Jun 30, 2026	carried, not yet filed for the newest quarter
31	LPL Financial LLC 13F CIK 1403438 · Broker-dealer · Jun 30, 2026 carried, not yet filed for the newest quarter	12,747	—	-722	Jun 30, 2026	carried, not yet filed for the newest quarter
32	QUADRANT CAPITAL GROUP LLC 13F CIK 1650717 · Unknown · Sep 30, 2026	11,221	—	-850	Sep 30, 2026
33	RITHOLTZ WEALTH MANAGEMENT 13F CIK 1698218 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	8,949	—	+8,949	Jun 30, 2026	carried, not yet filed for the newest quarter
34	AAM Transformers ETF Fund S000076555 · Registered fund · Jul 31, 2026 ETF Series Solutions, not summed	8,592	—	—	Jul 31, 2026	ETF Series Solutions, not summed
35	TD Waterhouse Canada Inc. 13F CIK 1999606 · Unknown · Sep 30, 2026	8,201	—	+224	Sep 30, 2026
36	MORGAN STANLEY 13F CIK 895421 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	7,970	—	+6,617	Jun 30, 2026	carried, not yet filed for the newest quarter
37	Vident Advisory, LLC 13F CIK 1744347 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	7,612	—	+7,612	Jun 30, 2026	carried, not yet filed for the newest quarter
38	Mariner, LLC 13F CIK 1373442 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	7,145	—	+7,145	Jun 30, 2026	carried, not yet filed for the newest quarter
39	BNP PARIBAS ARBITRAGE, SA 13F CIK 1166588 · Non-US institution · Jun 30, 2026 carried, not yet filed for the newest quarter	6,764	—	+4,624	Jun 30, 2026	carried, not yet filed for the newest quarter
40	Parallel Advisors, LLC 13F CIK 1690010 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	6,544	—	+202	Jun 30, 2026	carried, not yet filed for the newest quarter
41	Engineers Gate Manager LP 13F CIK 1620220 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	5,800	—	+5,800	Jun 30, 2026	carried, not yet filed for the newest quarter
42	DELPHI MANAGEMENT INC /MA/ 13F CIK 767684 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	5,715	—	-1,395	Jun 30, 2026	carried, not yet filed for the newest quarter
43	LSV ASSET MANAGEMENT 13F CIK 1050470 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	5,600	—	0	Jun 30, 2026	carried, not yet filed for the newest quarter
44	Foster Group, Inc. 13F CIK 1841544 · Registered investment adviser · Sep 30, 2026	5,175	—	-94	Sep 30, 2026
45	Connor, Clark & Lunn Investment Management Ltd. 13F CIK 1596800 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	5,138	—	-4,996	Jun 30, 2026	carried, not yet filed for the newest quarter
46	Quadrature Capital Ltd 13F CIK 1651424 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	4,776	—	-15,157	Jun 30, 2026	carried, not yet filed for the newest quarter
47	HRT FINANCIAL LP 13F CIK 1475597 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	4,763	—	+4,763	Jun 30, 2026	carried, not yet filed for the newest quarter
48	Harbor International Core Fund Fund S000064886 · Registered fund · Jul 31, 2026 HARBOR FUNDS, not summed	4,686	—	-1,037	Jul 31, 2026	HARBOR FUNDS, not summed
49	&PARTNERS 13F CIK 107136 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	4,519	—	+4,519	Jun 30, 2026	carried, not yet filed for the newest quarter
50	HSBC HOLDINGS PLC 13F CIK 873630 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	4,197	—	+4,197	Jun 30, 2026	carried, not yet filed for the newest quarter

2 more nested rows are not shown here; Every filing lists them all.

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

Showing 1–50 of 100 holders

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Key facts CIK 1123134 CUSIP 16965P202 13F (30d) 17 filings 17 filers Visit website Investor relations