Acadian Asset Management
IMOS

Acadian Asset Management’s ChipMOS TECHNOLOGIES IMOS Stock Holding History

Acadian Asset Management’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
2026
Q1 		$8.06M Sell
225,521
-27,731
-11% -$1.05M 0.01% 584
2025
Q4 		$7.5M Sell
253,252
-12,140
-5% -$303K 0.01% 553
2025
Q3 		$5.07M Hold
265,392
– – 0.01% 639
2025
Q2 		$4.79M Buy
265,392
+14,697
+6% +$260K 0.01% 598
2025
Q1 		$4.21M Buy
250,695
+31,768
+15% +$605K 0.01% 552
2024
Q4 		$4.11M Buy
218,927
+35,172
+19% +$730K 0.01% 576
2024
Q3 		$4.29M Sell
183,755
-6,453
-3% -$154K 0.01% 542
2024
Q2 		$4.95M Hold
190,208
– – 0.02% 499
2024
Q1 		$5.96M Hold
190,208
– – 0.02% 427
2023
Q4 		$5.16M Buy
190,208
+1,981
+1% +$49.8K 0.02% 446
2023
Q3 		$4.32M Buy
188,227
+26,843
+17% +$624K 0.02% 485
2023
Q2 		$3.81M Buy
161,384
+18,181
+13% +$456K 0.02% 524
2023
Q1 		$3.58M Buy
143,203
+52,258
+57% +$1.22M 0.02% 546
2022
Q4 		$1.94M Sell
90,945
-4,654
-5% -$95.7K 0.01% 680
2022
Q3 		$1.76M Buy
95,599
+13,991
+17% +$316K 0.01% 676
2022
Q2 		$2.04M Sell
81,608
-5,148
-6% -$167K 0.01% 625
2022
Q1 		$3.08M Sell
86,756
-1,335
-2% -$46.5K 0.01% 567
2021
Q4 		$3.09M Sell
88,091
-913
-1% -$30.4K 0.01% 558
2021
Q3 		$3.04M Sell
89,004
-10,534
-11% -$408K 0.01% 571
2021
Q2 		$3.38M Buy
99,538
+7,389
+8% +$244K 0.01% 565
2021
Q1 		$2.91M Buy
92,149
+2,252
+3% +$60.3K 0.01% 628
2020
Q4 		$2.19M Sell
89,897
-7,120
-7% -$154K 0.01% 730
2020
Q3 		$1.87M Buy
97,017
+10,415
+12% +$216K 0.01% 686
2020
Q2 		$1.96M Buy
86,602
+3,478
+4% +$71.3K 0.01% 747
2020
Q1 		$1.45M Buy
83,124
+2,534
+3% +$50.6K 0.01% 683
2019
Q4 		$1.82M Buy
80,590
+29,530
+58% +$651K 0.01% 715
2019
Q3 		$1.04M Buy
51,060
+49,860
+4,155% +$937K ﹤0.01% 878
2019
Q2 		$18K Hold
1,200
– – ﹤0.01% 1613
2019
Q1 		$20K Buy
+1,200
New +$19.8K ﹤0.01% 1814
2017
Q4 		– Sell
-7,662
Closed -$174K – 1622
2017
Q3 		$174K Sell
7,662
-28,425
-79% -$630K ﹤0.01% 938
2017
Q2 		$841K Sell
36,087
-122,913
-77% -$2.74M ﹤0.01% 740
2017
Q1 		$3.33M Sell
159,000
-254,255
-62% -$4.78M 0.02% 499
2016
Q4 		$6.87M Sell
413,255
-322,569
-44% -$6.17M 0.03% 352
2016
Q3 		$16.1M Sell
735,824
-128,812
-15% -$2.66M 0.08% 208
2016
Q2 		$17.3M Sell
864,636
-71,730
-8% -$1.41M 0.09% 194
2016
Q1 		$17.9M Sell
936,366
-26,591
-3% -$511K 0.09% 205
2015
Q4 		$21M Sell
962,957
-31,639
-3% -$644K 0.11% 197
2015
Q3 		$18M Sell
994,596
-35,917
-3% -$710K 0.1% 203
2015
Q2 		$24.8M Sell
1,030,513
-52,618
-5% -$1.35M 0.12% 186
2015
Q1 		$29.4M Sell
1,083,131
-12,810
-1% -$333K 0.14% 167
2014
Q4 		$28.2M Sell
1,095,941
-13,812
-1% -$330K 0.13% 173
2014
Q3 		$27.7M Sell
1,109,753
-119,456
-10% -$3.14M 0.13% 173
2014
Q2 		$32.7M Buy
1,229,209
+185,586
+18% +$4.67M 0.16% 163
2014
Q1 		$25.4M Sell
1,043,623
-126,315
-11% -$2.89M 0.13% 154
2013
Q4 		$24.8M Buy
1,169,938
+90,017
+8% +$1.8M 0.14% 150
2013
Q3 		$21.4M Sell
1,079,921
-58,185
-5% -$1.1M 0.14% 151
2013
Q2 		$24.3M Buy
+1,138,106
New +$20.6M 0.17% 131

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
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
Two Sigma Investments
Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return

Acadian Asset Management's IMOS Position: Q1 2026 in Review

Acadian Asset Management reduced its ChipMOS TECHNOLOGIES (IMOS) stake by 11% in Q1 2026, selling an estimated $1.05M and leaving 225,521 shares worth $8.06M. The position accounts for 0.01% of the portfolio, ranked #584.

Acadian Asset Management first reported a position in IMOS in Q2 2013 and has held it in 47 quarters since. The position peaked at $32.7M in Q2 2014. 72 funds tracked by Wall St. Rank hold IMOS as of Q1 2026.

  • Acadian Asset Management held 225,521 shares of ChipMOS TECHNOLOGIES worth $8.06M as of Q1 2026.
  • Acadian Asset Management sold 27,731 ChipMOS TECHNOLOGIES shares in Q1 2026, an estimated $1.05M.
  • ChipMOS TECHNOLOGIES made up 0.01% of Acadian Asset Management's portfolio in Q1 2026, its #584 holding.
  • Acadian Asset Management first reported a position in ChipMOS TECHNOLOGIES in Q2 2013 and has held it in 47 quarters since.
  • Acadian Asset Management's ChipMOS TECHNOLOGIES position peaked at $32.7M in Q2 2014.
  • 72 funds tracked by Wall St. Rank held ChipMOS TECHNOLOGIES as of Q1 2026.

Based on Acadian Asset Management's 13F filing for Q1 2026, filed 13 May 2026.