Vault-13

CHIPMOS TECHNOLOGIES INC IMOS

SPONSORD ADS NEW · ADR · CUSIP 16965P202

Taiwanese semiconductor company

91 institutional holders +18 vs Q1 2026
2,748,0462.7m shares reported held*
$176.4mreported value*
27 new 30 added 18 reduced 9 sold out net bought ≈ $26.9m (+418.8k shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($237.5k this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $64.20. Options: 5 managers hold calls ($6.3m notional), 3 hold puts ($2.0m).

Trends to Q2 2026

Institutional holders

Managers reporting a position, each quarter

050100Q3 22: 53Q4 22: 47Q1 23: 48Q2 23: 49Q3 23: 50Q4 23: 57Q1 24: 63Q2 24: 61Q3 24: 57Q4 24: 53Q1 25: 48Q2 25: 52Q3 25: 51Q4 25: 58Q1 26: 73Q2 26: 9191Q3 22Q3 23Q3 24Q3 25Q2 26
Numbers
QuarterHolders
Q3 202253
Q4 202247
Q1 202348
Q2 202349
Q3 202350
Q4 202357
Q1 202463
Q2 202461
Q3 202457
Q4 202453
Q1 202548
Q2 202552
Q3 202551
Q4 202558
Q1 202673
Q2 202691

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
1000100Q3 24: 19 bought or addedQ3 24: 34 cut or sold outQ4 24: 17 bought or addedQ4 24: 30 cut or sold outQ4 24Q1 25: 13 bought or addedQ1 25: 26 cut or sold outQ2 25: 26 bought or addedQ2 25: 17 cut or sold outQ2 25Q3 25: 19 bought or addedQ3 25: 22 cut or sold outQ4 25: 23 bought or addedQ4 25: 21 cut or sold outQ4 25Q1 26: 41 bought or addedQ1 26: 19 cut or sold outQ2 26: 57 bought or addedQ2 26: 27 cut or sold outQ2 26
Numbers
QuarterBought or addedCut or sold out
Q3 20241934
Q4 20241730
Q1 20251326
Q2 20252617
Q3 20251922
Q4 20252321
Q1 20264119
Q2 20265727

Calls vs puts

Options held, notional value, last 4 quarters. P/C = puts ÷ calls

CallsPuts
$0$2m$4m$6m$8mQ3 25 calls: $254.8kQ3 25 puts: $318.1kQ3 25P/C 1.25Q4 25 calls: $4.1mQ4 25 puts: $1.0mQ4 25P/C 0.26Q1 26 calls: $0Q1 26 puts: $1.6mQ1 26P/C —Q2 26 calls: $6.3mQ2 26 puts: $2.0mQ2 26P/C 0.32
Numbers
QuarterCallsPutsP/C
Q3 2025$254.8k$318.1k1.25
Q4 2025$4.1m$1.0m0.26
Q1 2026$0$1.6m—
Q2 2026$6.3m$2.0m0.32

Biggest buyers

XY Capital Ltd New +130,326+130.3k
O'SHAUGHNESSY ASSET MANAGEMENT, LLC Added +92,702+92.7k
JANE STREET GROUP, LLC Added +43,740+43.7k
Qube Research & Technologies Ltd New +32,641+32.6k
JPMORGAN CHASE & CO Added +21,807+21.8k
SUSQUEHANNA INTERNATIONAL GROUP, LLP New +20,814+20.8k
TWO SIGMA INVESTMENTS, LP Added +20,589+20.6k
Caprock Group, LLC Added +14,512+14.5k
XTX Topco Ltd Added +11,107+11.1k
LVW Advisors, LLC Added +9,410+9.4k

Biggest sellers

ACADIAN ASSET MANAGEMENT LLC Reduced -28,455-28.5k
Parvin Asset Management, LLC Sold out -21,770-21.8k
Quadrature Capital Ltd Reduced -15,157-15.2k
RENAISSANCE TECHNOLOGIES LLC Reduced -12,100-12.1k
MILLENNIUM MANAGEMENT LLC Sold out -10,729-10.7k
CITADEL ADVISORS LLC Reduced -7,215-7.2k
Connor, Clark & Lunn Investment Management Ltd. Reduced -4,996-5.0k
DIMENSIONAL FUND ADVISORS LP Reduced -3,569-3.6k
ENVESTNET ASSET MANAGEMENT INC Reduced -1,601-1.6k
QUADRANT CAPITAL GROUP LLC Reduced -1,518-1.5k

Biggest calls

PEAK6 LLC New $4.0m61.5k shares
JANE STREET GROUP, LLC New $1.1m17.3k shares
CITADEL ADVISORS LLC New $501.1k7.8k shares
GROUP ONE TRADING LLC New $385.5k6.0k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP New $346.9k5.4k shares

Biggest puts

SUSQUEHANNA INTERNATIONAL GROUP, LLP Reduced $1.7m26.5k shares
CITADEL ADVISORS LLC New $302.0k4.7k shares
SIMPLEX TRADING, LLC New $6.4k100 shares

Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.

Insider purchases and sales since 1 Apr 2026

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

None reported since 1 Apr 2026.

Holders, Q2 2026

#ManagerLocationShares Value% of their portfolioChangeShares change
1 RENAISSANCE TECHNOLOGIES LLC 0.10% of their portfolio NEW YORK, NY 1,105,8901.1m $71.1m $71.1m 0.10% Reduced -12.1k -12,100
2 BlackRock, Inc. 0.00% of their portfolio New York, NY 255,464255.5k $16.4m $16.4m 0.00% Added +1.1k +1,138
3 ACADIAN ASSET MANAGEMENT LLC 0.02% of their portfolio Boston, MA 197,066197.1k $12.6m $12.6m 0.02% Reduced -28.5k -28,455
4 O'SHAUGHNESSY ASSET MANAGEMENT, LLC 0.05% of their portfolio Stamford, CT 172,425172.4k $11.1m $11.1m 0.05% Added +92.7k +92,702
5 XY Capital Ltd 9.62% of their portfolio CENTRAL, K3 130,326130.3k $8.4m $8.4m 9.62% New
6 DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio AUSTIN, TX 88,68588.7k $5.7m $5.7m 0.00% Reduced -3.6k -3,569
7 Vanguard Personalized Indexing Management, LLC 0.04% of their portfolio OAKLAND, CA 72,46472.5k $4.7m $4.7m 0.04% Added +3.8k +3,754
8 ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio Berwyn, PA 53,13853.1k $3.4m $3.4m 0.00% Reduced -1.6k -1,601
9 JANE STREET GROUP, LLC 0.00% of their portfolio NEW YORK, NY 52,85352.9k $3.4m $3.4m 0.00% Added +43.7k +43,740
10 TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio NEW YORK, NY 50,81050.8k $3.3m $3.3m 0.00% Added +20.6k +20,589
11 Creative Planning 0.00% of their portfolio OVERLAND PARK, KS 49,37849.4k $3.2m $3.2m 0.00% Added +4.5k +4,549
12 MARSHALL WACE, LLP 0.00% of their portfolio LONDON, X0 34,42334.4k $2.2m $2.2m 0.00% Added +1.8k +1,820
13 RENAISSANCE GROUP LLC 0.09% of their portfolio Covington, KY 34,14034.1k $2.2m $2.2m 0.09% Reduced -1.0k -1,040
14 Qube Research & Technologies Ltd 0.00% of their portfolio LONDON, X0 32,64132.6k $2.1m $2.1m 0.00% New
15 Caprock Group, LLC 0.04% of their portfolio BOISE, ID 30,90930.9k $2.0m $2.0m 0.04% Added +14.5k +14,512
16 Ballentine Partners, LLC 0.02% of their portfolio Waltham, MA 26,84726.8k $1.7m $1.7m 0.02% Added +4.0k +3,971
17 RHUMBLINE ADVISERS 0.00% of their portfolio BOSTON, MA 25,70725.7k $1.7m $1.7m 0.00% Added +1.3k +1,314
18 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 21,88721.9k $1.3m $1.3m 0.00% Added +21.8k +21,807
19 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 20,81420.8k $1.3m $1.3m 0.00% New
20 SIGNATUREFD, LLC 0.02% of their portfolio ATLANTA, GA 20,71120.7k $1.3m $1.3m 0.02% Reduced -186 -186
21 XTX Topco Ltd 0.02% of their portfolio LONDON, X0 19,77319.8k $1.3m $1.3m 0.02% Added +11.1k +11,107
22 LVW Advisors, LLC 0.10% of their portfolio PITTSFORD, NY 18,89818.9k $1.2m $1.2m 0.10% Added +9.4k +9,410
23 CITADEL ADVISORS LLC 0.00% of their portfolio MIAMI, FL 17,64717.6k $1.1m $1.1m 0.00% Reduced -7.2k -7,215
24 Trexquant Investment LP 0.01% of their portfolio STAMFORD, CT 16,44116.4k $1.1m $1.1m 0.01% Added +9.0k +8,975
25 Kathmere Capital Management, LLC 0.05% of their portfolio WAYNE, PA 13,39513.4k $860.6k $860.6k 0.05% Added +7.7k +7,705
26 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 12,77712.8k $820.9k $820.9k 0.00% Reduced -145 -145
27 LPL Financial LLC 0.00% of their portfolio FORT MILL, SC 12,74712.7k $819.0k $819.0k 0.00% Reduced -722 -722
28 QUADRANT CAPITAL GROUP LLC 0.02% of their portfolio CINCINNATI, OH 12,07112.1k $775.6k $775.6k 0.02% Reduced -1.5k -1,518
29 RITHOLTZ WEALTH MANAGEMENT 0.01% of their portfolio NEW YORK, NY 8,9498.9k $575.0k $575.0k 0.01% New
30 TD Waterhouse Canada Inc. 0.00% of their portfolio TORONTO, A6 7,9778.0k $517.0k $517.0k 0.00% New
31 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 7,9708.0k $512.1k $512.1k 0.00% Added +6.6k +6,617
32 Vident Advisory, LLC 0.00% of their portfolio Alpharetta, GA 7,6127.6k $489.1k $489.1k 0.00% New
33 Mariner, LLC 0.00% of their portfolio Overland Park, KS 7,1457.1k $459.1k $459.1k 0.00% New
34 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 6,7646.8k $434.6k $434.6k 0.00% Added +4.6k +4,624
35 Parallel Advisors, LLC 0.01% of their portfolio SAN FRANCISCO, CA 6,5446.5k $420.5k $420.5k 0.01% Added +202 +202
36 Engineers Gate Manager LP 0.00% of their portfolio NEW YORK, NY 5,8005.8k $372.6k $372.6k 0.00% New
37 DELPHI MANAGEMENT INC /MA/ 0.36% of their portfolio BROOKLINE, MA 5,7155.7k $367.0k $367.0k 0.36% Reduced -1.4k -1,395
38 LSV ASSET MANAGEMENT 0.00% of their portfolio CHICAGO, IL 5,6005.6k $360.0k $360.0k 0.00% Unchanged
39 Foster Group, Inc. 0.01% of their portfolio WEST DES MOINES, IA 5,2695.3k $338.5k $338.5k 0.01% New
40 Connor, Clark & Lunn Investment Management Ltd. 0.00% of their portfolio VANCOUVER, A1 5,1385.1k $330.1k $330.1k 0.00% Reduced -5.0k -4,996
41 Quadrature Capital Ltd 0.00% of their portfolio LONDON, X0 4,7764.8k $306.9k $306.9k 0.00% Reduced -15.2k -15,157
42 HRT FINANCIAL LP 0.00% of their portfolio NEW YORK, NY 4,7634.8k $306.0k $306.0k 0.00% New
43 &PARTNERS 0.00% of their portfolio NASHVILLE, TN 4,5194.5k $290.3k $290.3k 0.00% New
44 HSBC HOLDINGS PLC 0.00% of their portfolio LONDON, X0 4,1974.2k $266.7k $266.7k 0.00% New
45 Quantinno Capital Management LP 0.00% of their portfolio NEW YORK, NY 4,1844.2k $268.8k $268.8k 0.00% New
46 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 4,1604.2k $267.3k $267.3k 0.00% New
47 Arax Advisory Partners 0.00% of their portfolio NEW YORK, NY 4,0824.1k $262.3k $262.3k 0.00% Added +1.9k +1,931
48 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 3,6983.7k $237.6k $237.6k 0.00% New
49 Squarepoint Ops LLC 0.00% of their portfolio NEW YORK, NY 3,6553.7k $234.8k $234.8k 0.00% New
50 EVERGREEN CAPITAL MANAGEMENT LLC 0.00% of their portfolio Bellevue, WA 3,6173.6k $235.2k $235.2k 0.00% New
51 GAMMA Investing LLC 0.01% of their portfolio FOSTER CITY, CA 3,3633.4k $216.1k $216.1k 0.01% Added +123 +123
52 BANK OF MONTREAL /CAN/ 0.00% of their portfolio TORONTO, A6 3,3443.3k $214.9k $214.9k 0.00% New
53 Ascent Group, LLC 0.01% of their portfolio VIRGINIA BEACH, VA 3,2603.3k $209.5k $209.5k 0.01% New
54 SmartHarvest Portfolios, LLC 0.06% of their portfolio SEATTLE, WA 3,1153.1k $200.1k $200.1k 0.06% New
55 Westside Investment Management, Inc. 0.02% of their portfolio SANTA MONICA, CA 2,1632.2k $139.0k $139.0k 0.02% Unchanged
56 Smartleaf Asset Management LLC 0.00% of their portfolio BOSTON, MA 1,7741.8k $103.5k $103.5k 0.00% Unchanged
57 Farther Finance Advisors, LLC 0.00% of their portfolio SAN FRANCISCO, CA 1,6541.7k $106.3k $106.3k 0.00% Added +77 +77
58 Allworth Financial LP 0.00% of their portfolio FOLSOM, CA 1,5741.6k $101.1k $101.1k 0.00% Reduced -720 -720
59 US BANCORP \DE\ 0.00% of their portfolio MINNEAPOLIS, MN 940940 $60.4k $60.4k 0.00% Added +159 +159
60 Global Retirement Partners, LLC 0.00% of their portfolio San Rafael, CA 934934 $60.0k $60.0k 0.00% First filing
61 Bell Investment Advisors, Inc 0.01% of their portfolio ORINDA, CA 653653 $42.0k $42.0k 0.01% Unchanged
62 OSAIC HOLDINGS, INC. 0.00% of their portfolio SCOTTSDALE, AZ 623623 $40.0k $40.0k 0.00% Added +185 +185
63 ASSETMARK, INC 0.00% of their portfolio CONCORD, CA 605605 $38.9k $38.9k 0.00% Added +55 +55
64 UBS Group AG 0.00% of their portfolio ZURICH, V8 568568 $36.5k $36.5k 0.00% Added +567 +567
65 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 550550 $35.3k $35.3k 0.00% New
66 NISA INVESTMENT ADVISORS, LLC 0.00% of their portfolio ST. LOUIS, MO 522522 $33.9k $33.9k 0.00% Added +65 +65
67 SIMPLEX TRADING, LLC 0.00% of their portfolio CHICAGO, IL 428428 $27.5k $27.5k 0.00% New
68 NewEdge Advisors, LLC 0.00% of their portfolio NEW ORLEANS, LA 424424 $27.2k $27.2k 0.00% Reduced -373 -373
69 Physician Wealth Advisors, Inc. 0.00% of their portfolio MIDVALE, UT 369369 $23.7k $23.7k 0.00% Reduced -121 -121
70 BESSEMER GROUP INC 0.00% of their portfolio WOODBRIDGE, NJ 279279 $18.0k $18.0k 0.00% Unchanged
71 Integrated Wealth Concepts LLC 0.00% of their portfolio WALTHAM, MA 270270 $17.3k $17.3k 0.00% New
72 Federation des caisses Desjardins du Quebec 0.00% of their portfolio LEVIS, A8 264264 $17.0k $17.0k 0.00% Unchanged
73 GROUP ONE TRADING LLC 0.00% of their portfolio CHICAGO, IL 248248 $15.9k $15.9k 0.00% New
74 Coston, McIsaac & Partners 0.00% of their portfolio BAR HARBOR, ME 217217 $13.0k $13.0k 0.00% Unchanged
75 Larson Financial Group LLC 0.00% of their portfolio ST LOUIS, MO 192192 $12.3k $12.3k 0.00% Unchanged
76 AdvisorNet Financial, Inc 0.00% of their portfolio MINNETONKA, MN 150150 $9.6k $9.6k 0.00% Unchanged
77 Crewe Advisors LLC 0.00% of their portfolio SALT LAKE CITY, UT 113113 $7.3k $7.3k 0.00% Unchanged
78 Cornerstone Financial Management LLC 0.01% of their portfolio BURLINGTON, MA 109109 $7.0k $7.0k 0.01% Added +28 +28
79 FIDUCIARY FINANCIAL ADVISORS 0.00% of their portfolio GRAND RAPIDS, MI 7878 $4.9k $4.9k 0.00% New
80 PRIVATE TRUST CO NA 0.00% of their portfolio CLEVELAND, OH 7777 $4.9k $4.9k 0.00% Reduced -18 -18
81 EverSource Wealth Advisors, LLC 0.00% of their portfolio BIRMINGHAM, AL 6666 $4.2k $4.2k 0.00% Added +1 +1
82 Winch Advisory Services, LLC 0.00% of their portfolio Appleton, WI 6060 $3.9k $3.9k 0.00% Unchanged
83 Dogwood Wealth Management LLC 0.00% of their portfolio LENEXA, KS 5151 $3.3k $3.3k 0.00% Unchanged
84 HANTZ FINANCIAL SERVICES, INC. 0.00% of their portfolio SOUTHFIELD, MI 5050 $3.0k $3.0k 0.00% Not comparable
85 SBI Securities Co., Ltd. 0.00% of their portfolio TOKYO, M0 4343 $2.8k $2.8k 0.00% Added +40 +40
86 Moisand Fitzgerald Tamayo, LLC 0.00% of their portfolio ORLANDO, FL 3939 $2.5k $2.5k 0.00% Unchanged
87 Silver Grove Financial Group, Inc. 0.00% of their portfolio ORCHARD PARK, NY 3030 $1.9k $1.9k 0.00% New
88 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 2121 $1.0k $1.0k 0.00% Reduced -595 -595
89 IFP Advisors, Inc 0.00% of their portfolio TAMPA, FL 1515 $964 $964 0.00% Unchanged
90 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 11 $62 $62 0.00% Added +1 +1
91 Caitong International Asset Management Co., Ltd 0.00% of their portfolio HONG KONG, K3 11 $64 $64 0.00% New