IMOS · Chipmos Technologies Inc · Holdings

$55.33 -0.66 (-1.18%) At close · Sep 11

Market Cap

$1.92B

34.77M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Use institutional holdings through the 13F API or MCP →

Quarter:

Holders: 92

Total Value: $184,695,514

Total Shares: 2,874,639

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 92 13F filers · Δ vs Mar 31, 2026

Top Holder

38.5%

−8.5 pts

Top 5

64.7%

−9.7 pts

Top 10

76.8%

−8.1 pts

HHI

1,714

Moderately concentrated−762

Quarterly Activity

vs Mar 31, 2026

New

Increased

Decreased

Sold Out

Unchanged

Holder count: +18

Institutional value: +117.1%

Shares held: +20.9%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds
Large O'SHAUGHNESSY ASSET MANAGEMENT, LLC	+92,702	172,425
Mega JANE STREET GROUP, LLC	+61,040	70,153
Mega JPMORGAN CHASE & CO	+21,807	21,887
Mega TWO SIGMA INVESTMENTS, LP	+20,589	50,810
Mid Caprock Group, LLC	+14,512	30,909

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds
Large ACADIAN ASSET MANAGEMENT LLC	−28,455	197,066
Large Quadrature Capital Ltd	−15,157	4,776
Large RENAISSANCE TECHNOLOGIES LLC	−12,100	1,105,890
Large Connor, Clark & Lunn Investment Management Ltd.	−4,996	5,138
Mega DIMENSIONAL FUND ADVISORS LP	−3,569	88,685

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)
Small XY Capital Ltd	130,326	$8,373,445
Large PEAK6 LLC	61,500	$3,951,375
Mega Qube Research & Technologies Ltd	32,641	$2,097,184
Mid RITHOLTZ WEALTH MANAGEMENT	8,949	$574,973
Large TD Waterhouse Canada Inc.	7,977	$512,522

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)
Small Parvin Asset Management, LLC	21,770	$778,930
Mega MILLENNIUM MANAGEMENT LLC	10,729	$383,883
Small JNBA Financial Advisors	750	$26,835
Large CWM, LLC	220	$7,871
Micro Intentional Wealth Strategies, LLC	158	$5,653

Filter: New 28 Increased 32 Reduced 17 Sold out 10 Unchanged 15

Showing 97 of 97

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

RENAISSANCE TECHNOLOGIES LLC

$71,053,432

38.47%

1,105,890

BlackRock, Inc.

$16,413,562

8.89%

255,464

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BlackRock Institutional Trust Company, N.A.	16	$1,028	0.0%	Sole
Aperio Group, LLC	255,448	$16,412,534	100.0%	Sole

ACADIAN ASSET MANAGEMENT LLC

$12,661,490

6.86%

197,066

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Acadian Inc	197,066	$12,661,490	100.0%	Defined

O'SHAUGHNESSY ASSET MANAGEMENT, LLC

$11,078,306

6.00%

172,425

XY Capital Ltd

$8,373,445

4.53%

130,326

DIMENSIONAL FUND ADVISORS LP

$5,698,010

3.09%

88,685

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Dimensional Fund Advisors Ltd.	499	$32,060	0.6%	Defined
Dimensional Ireland Ltd	356	$22,873	0.4%	Defined
Held directly	87,830	$5,643,077	99.0%	Sole

Vanguard Personalized Indexing Management, LLC

$4,655,812

2.52%

72,464

PEAK6 LLC

$3,951,375

2.14%

61,500

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
PEAK6 Investments LLC joint	61,500	$3,951,375	100.0%	Defined

ENVESTNET ASSET MANAGEMENT INC

$3,414,116

1.85%

53,138

JANE STREET GROUP, LLC

$3,395,805

1.84%

52,853

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	49,940	$3,208,645	94.5%	Defined
Jane Street Global Trading, LLC	2,913	$187,160	5.5%	Defined

TWO SIGMA INVESTMENTS, LP

$3,264,542

1.77%

50,810

Creative Planning

$3,172,536

1.72%

49,378

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
CREATIVE PLANNING TRUST Co LLC	1,054	$67,719	2.1%	Defined
Held directly	48,324	$3,104,817	97.9%	Sole

MARSHALL WACE, LLP

$2,211,677

1.20%

34,423

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Marshall Wace North America L.P. joint	34,423	$2,211,677	100.0%	Other

RENAISSANCE GROUP LLC

$2,193,495

1.19%

34,140

Qube Research & Technologies Ltd

$2,097,184

1.14%

32,641

Caprock Group, LLC

$1,985,903

1.08%

30,909

Ballentine Partners, LLC

$1,724,919

0.93%

26,847

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Aperio Group, LLC	26,812	$1,722,671	99.9%	Other
BANK OF AMERICA CORP /DE/	35	$2,248	0.1%	Other

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$1,702,625

0.92%

26,500

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	26,500	$1,702,625	100.0%	Other

RHUMBLINE ADVISERS

$1,651,674

0.89%

25,707

JPMORGAN CHASE & CO

$1,406,239

0.76%

21,887

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
JPMorgan Chase Bank, N.A.	926	$59,495	4.2%	Defined
J.P. Morgan Securities LLC	20,881	$1,341,604	95.4%	Defined
J.P. Morgan Securities plc	80	$5,140	0.4%	Defined

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$1,337,299

0.72%

20,814

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	20,814	$1,337,299	100.0%	Other

SIGNATUREFD, LLC

$1,330,681

0.72%

20,711

XTX Topco Ltd

$1,270,415

0.69%

19,773

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
XTX EXECUTION SERVICES LLC joint	19,773	$1,270,415	100.0%	Defined

LVW Advisors, LLC

$1,214,196

0.66%

18,898

CITADEL ADVISORS LLC

$1,133,819

0.61%

17,647

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	17,647	$1,133,819	100.0%	Defined

JANE STREET GROUP, LLC

$1,111,525

0.60%

17,300

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	17,300	$1,111,525	100.0%	Defined

Trexquant Investment LP

$1,056,334

0.57%

16,441

Kathmere Capital Management, LLC

$860,628

0.47%

13,395

BANK OF AMERICA CORP /DE/

$820,922

0.44%

12,777

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BANK OF AMERICA NA	12,777	$820,922	100.0%	Defined

LPL Financial LLC

$818,994

0.44%

12,747

QUADRANT CAPITAL GROUP LLC

$775,561

0.42%

12,071

RITHOLTZ WEALTH MANAGEMENT

$574,973

0.31%

8,949

TD Waterhouse Canada Inc.

$512,522

0.28%

7,977

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
TORONTO DOMINION BANK	7,977	$512,522	100.0%	Defined

MORGAN STANLEY

$512,070

0.28%

7,970

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY & CO INTERNATIONAL PLC	6,504	$417,882	81.6%	Defined
MORGAN STANLEY CAPITAL SERVICES, LLC	3	$192	0.0%	Defined
MORGAN STANLEY SMITH BARNEY LLC	447	$28,719	5.6%	Defined
PARAMETRIC PORTFOLIO ASSOCIATES LLC	1,016	$65,277	12.7%	Defined

CITADEL ADVISORS LLC

$501,150

0.27%

7,800

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	7,800	$501,150	100.0%	Defined

Vident Advisory, LLC

$489,070

0.26%

7,612

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Advisors Asset Management, Inc.	7,542	$484,573	99.1%	Defined
Blue Trust, Inc.	70	$4,497	0.9%	Defined

Mariner, LLC

$459,066

0.25%

7,145

BNP PARIBAS ARBITRAGE, SA

$434,587

0.24%

6,764

Parallel Advisors, LLC

$420,452

0.23%

6,544

Engineers Gate Manager LP

$372,650

0.20%

5,800

DELPHI MANAGEMENT INC /MA/

$367,188

0.20%

5,715

LSV ASSET MANAGEMENT

$359,800

0.19%

5,600

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$346,950

0.19%

5,400

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	5,400	$346,950	100.0%	Other

Foster Group, Inc.

$338,533

0.18%

5,269

Connor, Clark & Lunn Investment Management Ltd.

$330,116

0.18%

5,138

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Manager 1	5,138	$330,116	100.0%	Sole

Quadrature Capital Ltd

$306,858

0.17%

4,776

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Quadrature US Inc.	4,776	$306,858	100.0%	Other

HRT FINANCIAL LP

$306,022

0.17%

4,763

CITADEL ADVISORS LLC

$301,975

0.16%

4,700

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	4,700	$301,975	100.0%	Defined

&PARTNERS

$290,345

0.16%

4,519

HSBC HOLDINGS PLC

$269,657

0.15%

4,197

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
HSBC BANK PLC	4,197	$269,657	100.0%	Defined

Quantinno Capital Management LP

$268,822

0.15%

4,184

GOLDMAN SACHS GROUP INC

$267,280

0.14%

4,160

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GOLDMAN SACHS ASSET MANAGEMENT, L.P.	4,160	$267,280	100.0%	Defined

Arax Advisory Partners

$262,268

0.14%

4,082

GEODE CAPITAL MANAGEMENT, LLC

$237,596

0.13%

3,698

Squarepoint Ops LLC

$234,833

0.13%

3,655

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Squarepoint Capital LLP	3,655	$234,833	100.0%	Defined

EVERGREEN CAPITAL MANAGEMENT LLC

$232,392

0.13%

3,617

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Aperio Group, LLC	3,617	$232,392	100.0%	Other

GAMMA Investing LLC

$216,072

0.12%

3,363

BANK OF MONTREAL /CAN/

$214,851

0.12%

3,344

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BMO Bank N.A.	49	$3,148	1.5%	Defined
BMO Family Office, LLC	2,870	$184,397	85.8%	Defined
BMO NESBITT BURNS INC.	425	$27,306	12.7%	Defined

Ascent Group, LLC

$209,454

0.11%

3,260

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
O'Shaughnessy	2,464	$158,312	75.6%	Other
Orion	775	$49,793	23.8%	Other
Held directly	21	$1,349	0.6%	Sole

SmartHarvest Portfolios, LLC

$200,138

0.11%

3,115

Westside Investment Management, Inc.

$138,972

0.08%

2,163

Smartleaf Asset Management LLC

$113,979

0.06%

1,774

Farther Finance Advisors, LLC

$106,269

0.06%

1,654

Allworth Financial LP

$101,129

0.05%

1,574

US BANCORP \DE\

$60,395

0.03%

940

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
US BANK NATIONAL ASSOCIATION	940	$60,395	100.0%	Defined

Global Retirement Partners, LLC

$60,009

0.03%

934

Bell Investment Advisors, Inc

$41,955

0.02%

653

OSAIC HOLDINGS, INC.

$40,027

0.02%

623

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
OSAIC WEALTH, INC.	423	$27,177	67.9%	Defined
Osaic Advisory Services, LLC	200	$12,850	32.1%	Defined

ASSETMARK, INC

$38,871

0.02%

605

UBS Group AG

$36,494

0.02%

568

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS AG	568	$36,494	100.0%	Defined

CITIGROUP INC

$35,337

0.02%

550

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citigroup Financial Products Inc. joint	550	$35,337	100.0%	Defined

NISA INVESTMENT ADVISORS, LLC

$33,538

0.02%

522

SIMPLEX TRADING, LLC

$27,499

0.01%

428

NewEdge Advisors, LLC

$27,242

0.01%

424

Physician Wealth Advisors, Inc.

$23,708

0.01%

369

BESSEMER GROUP INC

$17,925

0.01%

279

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BESSEMER TRUST Co NATIONAL ASSOCIATION	279	$17,925	100.0%	Defined

Federation des caisses Desjardins du Quebec

$16,962

0.01%

264

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Regime de rentes du Mouvement Desjardins	264	$16,962	100.0%	Defined

GROUP ONE TRADING LLC

$15,934

0.01%

248

Coston, McIsaac & Partners

$13,942

0.01%

217

Larson Financial Group LLC

$12,336

0.01%

192

AdvisorNet Financial, Inc

$9,637

0.01%

150

Crewe Advisors LLC

$7,260

0.00%

113

Cornerstone Financial Management LLC

$7,003

0.00%

109

ACTION POINT FINANCIAL PLANNING, LLC

$5,011

0.00%

PRIVATE TRUST CO NA

$4,947

0.00%

EverSource Wealth Advisors, LLC

$4,239

0.00%

Winch Advisory Services, LLC

$3,855

0.00%

Dogwood Wealth Management LLC

$3,276

0.00%

HANTZ FINANCIAL SERVICES, INC.

$3,212

0.00%

SBI Securities Co., Ltd.

$2,762

0.00%

Moisand Fitzgerald Tamayo, LLC

$2,505

0.00%

Silver Grove Financial Group, Inc.

$1,927

0.00%

ROYAL BANK OF CANADA

$1,349

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
RBC Capital Markets, LLC	21	$1,349	100.0%	Defined

IFP Advisors, Inc

$963

0.00%

Parkside Financial Bank & Trust

$706

0.00%

WELLS FARGO & COMPANY/MN

$64

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
WELLS FARGO CLEARING SERVICES, LLC	1	$64	100.0%	Defined

Caitong International Asset Management Co., Ltd

$64

0.00%

Key facts CIK 1123134 CUSIP 16965P202 13F (30d) 24 filings 24 filers Visit website