Chipmos Technologies IMOS Institutional Ownership

NASDAQ IMOS

$71.77 +4.01 (+5.92%)

At close: Sep 30, 2026 · 4:00 PM EDT

Institutions by Trading Activity

92 Institutions

Increased 60 65.2%

Unchanged 15 16.3%

Reduced 17 18.5%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

7.75%

▲+1.18 pp QoQ

Shares Held by Institutions

2.75Mn

of 35.52Mn outstanding

▲+19.80% QoQ

Shares Outstanding

35.52Mn

32.77Mn held outside 13F filers

Institutional Investors

filed 13F for Jun 2026

▲+20 vs prior quarter

Net Shares Added (QoQ)

+454.81K

accumulated since last quarter

Value of Holdings

$197.51Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Chipmos Technologies Inc (NASDAQ:IMOS) has 92 institutional investors with active 13F positions as of June 2026.

They owned 7.7% of outstanding stock in June 2026, up from 6.6% the prior quarter.
They increased total shares held in Chipmos Technologies by 19.8% from the prior quarter, while the number of investors in IMOS increased 84.0% year over year.
Activity in IMOS broke down as 60 buyers, 17 sellers, and 15 unchanged among 92 total holders.
Altogether, these fund groups held 2.75Mn shares in IMOS by June 2026, up by 454.81K shares quarter on quarter, and up 565.72K shares year over year.
As of June 30, 2026, RENAISSANCE TECHNOLOGIES LLC held the largest stake in Chipmos Technologies with 1.11Mn shares, accounting for 3.11% of total shares outstanding.
The largest buyers of Chipmos Technologies for the quarter ending June 2026 were XY Capital Ltd (130.33K), O'SHAUGHNESSY ASSET MANAGEMENT, LLC (92.7K), JANE STREET GROUP, LLC (43.74K), Qube Research & Technologies Ltd (32.64K), Jpmorgan Chase & Co (21.81K).
Top sellers of IMOS stock for the quarter ending June 2026 included ACADIAN ASSET MANAGEMENT LLC (28.46K), Quadrature Capital Ltd (15.16K), RENAISSANCE TECHNOLOGIES LLC (12.1K), CITADEL ADVISORS LLC (7.22K), Connor, Clark & Lunn Investment Management Ltd. (5.0K).
Chipmos Technologies's 10 largest shareholders as of June 2026 include RENAISSANCE TECHNOLOGIES LLC (1.11Mn), BlackRock, Inc. (255.46K), ACADIAN ASSET MANAGEMENT LLC (197.07K), O'SHAUGHNESSY ASSET MANAGEMENT, LLC (172.42K), XY Capital Ltd (130.33K), DIMENSIONAL FUND ADVISORS LP (88.68K), Vanguard Personalized Indexing Management, LLC (72.46K), ENVESTNET ASSET MANAGEMENT INC (53.14K), JANE STREET GROUP, LLC (52.85K), TWO SIGMA INVESTMENTS, LP (50.81K) per Business Quant data.

Form 13F Holdings

92 Institutional Holders

Report period 30 Jun, 2026

Total shares held 2.75Mn

Of outstanding 7.75%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	RENAISSANCE TECHNOLOGIES LLC	0001037389	1,105,890	3.11%	▼12,100	-1.08%	$71.05Mn
2	BlackRock, Inc.	0002012383	255,464	0.72%	▲1,138	+0.45%	$16.41Mn
3	ACADIAN ASSET MANAGEMENT LLC	0000916542	197,066	0.55%	▼28,455	-12.62%	$12.65K
4	O'SHAUGHNESSY ASSET MANAGEMENT, LLC	0001423442	172,425	0.49%	▲92,702	+116.28%	$11.08Mn
5	XY Capital Ltd	0001933132	130,326	0.37%	▲130,326	0.00%	$8.37Mn
6	DIMENSIONAL FUND ADVISORS LP	0000354204	88,685	0.25%	▼3,569	-3.87%	$5.69Mn
7	Vanguard Personalized Indexing Management, LLC	0001767306	72,464	0.20%	▲3,754	+5.46%	$4.66Mn
8	ENVESTNET ASSET MANAGEMENT INC	0001407543	53,138	0.15%	▼1,601	-2.92%	$3.41Mn
9	JANE STREET GROUP, LLC	0001595888	52,853	0.15%	▲43,740	+479.97%	$3.40Mn
10	TWO SIGMA INVESTMENTS, LP	0001179392	50,810	0.14%	▲20,589	+68.13%	$3.26Mn
11	Creative Planning	0001540235	49,378	0.14%	▲4,549	+10.15%	$3.17Mn
12	MARSHALL WACE, LLP	0001318757	34,423	0.10%	▲1,820	+5.58%	$2.21Mn
13	RENAISSANCE GROUP LLC	0000944234	34,140	0.10%	▼1,040	-2.96%	$2.19Mn
14	Qube Research & Technologies Ltd	0001729829	32,641	0.09%	▲32,641	0.00%	$2.10Mn
15	Caprock Group, LLC	0001610769	30,909	0.09%	▲14,512	+88.50%	$2.01Mn
16	Ballentine Partners, LLC	0001374889	26,847	0.08%	▲3,971	+17.36%	$1.72Mn
17	RHUMBLINE ADVISERS	0001115418	25,707	0.07%	▲1,314	+5.39%	$1.65Mn
18	Jpmorgan Chase & Co	0000019617	21,887	0.06%	▲21,807	+27,258.75%	$1.28Mn
19	SUSQUEHANNA INTERNATIONAL GROUP, LLP	0001446194	20,814	0.06%	▲20,814	0.00%	$1.34Mn
20	SIGNATUREFD, LLC	0001456048	20,711	0.06%	▼186	-0.89%	$1.33Mn

Showing 1 to 20 of 92 holders