Citadel Advisors
IMOS

Citadel Advisors’s ChipMOS TECHNOLOGIES IMOS Stock Holding History

Citadel Advisors’s Portfolio IMOS Stock Details IMOS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q3 		– Sell
-17,600
Closed -$319K – 13399
2025
Q2 		$319K Buy
17,600
+12,900
+274% +$228K ﹤0.01% 9671
2025
Q1 		$79.1K Buy
+4,700
New +$89.5K ﹤0.01% 11772
2024
Q2 		– Sell
-7,700
Closed -$242K – 14813
2024
Q1 		$242K Buy
7,700
+7,300
+1,825% +$208K ﹤0.01% 9925
2023
Q4 		$10.9K Buy
400
+100
+33% +$2.51K ﹤0.01% 13077
2023
Q3 		$6.92K Buy
+300
New +$6.97K ﹤0.01% 13290
2023
Q1 		– Sell
-200
Closed -$4.29K – 15069
2022
Q4 		$4.29K Buy
+200
New +$4.11K ﹤0.01% 14110
2021
Q3 		– Sell
-11,400
Closed -$388K – 14207
2021
Q2 		$388K Buy
11,400
+4,500
+65% +$148K ﹤0.01% 10646
2021
Q1 		$218K Buy
+6,900
New +$185K ﹤0.01% 11528
2019
Q2 		– Sell
-10,600
Closed -$179K – 9495
2019
Q1 		$179K Buy
+10,600
New +$175K ﹤0.01% 8287
2016
Q4 		– Sell
-17,062
Closed -$372K – 7527
2016
Q3 		$372K Buy
+17,062
New +$353K ﹤0.01% 5328
2016
Q2 		– Sell
-22,598
Closed -$433K – 7070
2016
Q1 		$433K Buy
22,598
+1,543
+7% +$29.6K ﹤0.01% 4608
2015
Q4 		$459K Sell
21,055
-14,067
-40% -$286K ﹤0.01% 4576
2015
Q3 		$635K Buy
35,122
+22,780
+185% +$450K ﹤0.01% 4446
2015
Q2 		$297K Sell
12,342
-20,965
-63% -$539K ﹤0.01% 5755
2015
Q1 		$905K Buy
33,307
+26,863
+417% +$699K ﹤0.01% 4056
2014
Q4 		$166K Sell
6,444
-3,267
-34% -$78.1K ﹤0.01% 6177
2014
Q3 		$242K Buy
9,711
+636
+7% +$16.7K ﹤0.01% 5515
2014
Q2 		$241K Buy
9,075
+2,087
+30% +$52.5K ﹤0.01% 5352
2014
Q1 		$170K Sell
6,988
-10,255
-59% -$234K ﹤0.01% 5692
2013
Q4 		$366K Buy
+17,243
New +$345K ﹤0.01% 4397

Other funds holding IMOS

Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
OSAM
O'Shaughnessy Asset Management Stamford, Connecticut $20.1B AUM 30.42% 1-Year Est. Return
VPIM
Vanguard Personalized Indexing Management Oakland, California $10.2B AUM 34.45% 1-Year Est. Return
Envestnet Asset Management
Envestnet Asset Management Chicago, Illinois $374B AUM 17.66% 1-Year Est. Return
Creative Planning
Creative Planning Overland Park, Kansas $147B AUM 18.73% 1-Year Est. Return
RG
Renaissance Group Covington, Kentucky $2.39B AUM 27.81% 1-Year Est. Return
Marshall Wace
Marshall Wace London, United Kingdom $100B AUM 35.1% 1-Year Est. Return

Citadel Advisors's IMOS Position: Q1 2026 in Review

Citadel Advisors increased its ChipMOS TECHNOLOGIES (IMOS) stake by 53% in Q1 2026, buying an estimated $324K and bringing the position to 24,862 shares worth $890K. The position accounts for ﹤0.01% of the portfolio, ranked #7932.

Citadel Advisors first reported a position in IMOS in Q4 2013 and has held it in 28 quarters since. The position peaked at $3.76M in Q2 2015. 72 funds tracked by Wall St. Rank hold IMOS as of Q1 2026.

  • Citadel Advisors held 24,862 shares of ChipMOS TECHNOLOGIES worth $890K as of Q1 2026.
  • Citadel Advisors bought 8,594 ChipMOS TECHNOLOGIES shares in Q1 2026, an estimated $324K.
  • ChipMOS TECHNOLOGIES made up ﹤0.01% of Citadel Advisors's portfolio in Q1 2026, its #7932 holding.
  • Citadel Advisors first reported a position in ChipMOS TECHNOLOGIES in Q4 2013 and has held it in 28 quarters since.
  • Citadel Advisors's ChipMOS TECHNOLOGIES position peaked at $3.76M in Q2 2015.
  • 72 funds tracked by Wall St. Rank held ChipMOS TECHNOLOGIES as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.