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
Q4 		– Sell
-16,600
Closed -$318K – 13323
2025
Q3 		$318K Sell
16,600
-400
-2% -$7.05K ﹤0.01% 10219
2025
Q2 		$308K Buy
17,000
+16,900
+16,900% +$299K ﹤0.01% 9754
2025
Q1 		$1.68K Buy
+100
New +$1.9K ﹤0.01% 14111
2024
Q2 		– Sell
-5,500
Closed -$173K – 14815
2024
Q1 		$173K Buy
+5,500
New +$156K ﹤0.01% 10548
2023
Q4 		– Sell
-400
Closed -$9.22K – 14754
2023
Q3 		$9.22K Sell
400
-900
-69% -$20.9K ﹤0.01% 13141
2023
Q2 		$30.8K Buy
+1,300
New +$32.6K ﹤0.01% 12327
2023
Q1 		– Sell
-100
Closed -$2.14K – 15071
2022
Q4 		$2.14K Buy
+100
New +$2.06K ﹤0.01% 14374
2022
Q1 		– Sell
-5,900
Closed -$207K – 14060
2021
Q4 		$207K Sell
5,900
-1,500
-20% -$49.9K ﹤0.01% 11775
2021
Q3 		$253K Buy
+7,400
New +$287K ﹤0.01% 11450
2019
Q2 		– Sell
-10,600
Closed -$179K – 9496
2019
Q1 		$179K Buy
+10,600
New +$175K ﹤0.01% 8288
2016
Q3 		– Sell
-27,135
Closed -$541K – 7453
2016
Q2 		$541K Sell
27,135
-13,069
-33% -$257K ﹤0.01% 4371
2016
Q1 		$770K Buy
40,204
+23,233
+137% +$446K ﹤0.01% 3800
2015
Q4 		$370K Sell
16,971
-5,354
-24% -$109K ﹤0.01% 4900
2015
Q3 		$404K Sell
22,325
-11,163
-33% -$221K ﹤0.01% 5104
2015
Q2 		$806K Buy
33,488
+14,339
+75% +$368K ﹤0.01% 4270
2015
Q1 		$520K Sell
19,149
-28,315
-60% -$737K ﹤0.01% 4850
2014
Q4 		$1.22M Buy
47,464
+21,599
+84% +$517K ﹤0.01% 3515
2014
Q3 		$645K Buy
25,865
+1,906
+8% +$50.1K ﹤0.01% 4295
2014
Q2 		$637K Buy
23,959
+8,622
+56% +$217K ﹤0.01% 4086
2014
Q1 		$373K Buy
15,337
+9,983
+186% +$228K ﹤0.01% 4751
2013
Q4 		$114K Buy
+5,354
New +$107K ﹤0.01% 5504

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.