Renaissance Technologies
IMOS

Renaissance Technologies’s ChipMOS TECHNOLOGIES IMOS Stock Holding History

Renaissance Technologies’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 		$40M Sell
1,117,990
-7,200
-0.6% -$272K 0.06% 390
2025
Q4 		$33.3M Sell
1,125,190
-16,400
-1% -$409K 0.05% 415
2025
Q3 		$21.8M Sell
1,141,590
-10,600
-0.9% -$187K 0.03% 683
2025
Q2 		$20.9M Sell
1,152,190
-16,000
-1% -$283K 0.03% 696
2025
Q1 		$19.7M Sell
1,168,190
-15,600
-1% -$297K 0.03% 665
2024
Q4 		$22.3M Sell
1,183,790
-36,801
-3% -$764K 0.03% 620
2024
Q3 		$28.6M Sell
1,220,591
-16,300
-1% -$389K 0.04% 517
2024
Q2 		$32.3M Sell
1,236,891
-6,100
-0.5% -$171K 0.05% 421
2024
Q1 		$39.1M Buy
1,242,991
+2,800
+0.2% +$79.6K 0.06% 387
2023
Q4 		$33.7M Sell
1,240,191
-6,300
-0.5% -$158K 0.05% 413
2023
Q3 		$28.7M Sell
1,246,491
-16,009
-1% -$372K 0.05% 428
2023
Q2 		$29.9M Sell
1,262,500
-18,100
-1% -$454K 0.04% 492
2023
Q1 		$32.2M Sell
1,280,600
-29,500
-2% -$690K 0.04% 496
2022
Q4 		$28.1M Sell
1,310,100
-53,400
-4% -$1.1M 0.04% 559
2022
Q3 		$25.3M Sell
1,363,500
-70,600
-5% -$1.59M 0.04% 565
2022
Q2 		$35.8M Buy
1,434,100
+4,500
+0.3% +$146K 0.04% 469
2022
Q1 		$50.8M Sell
1,429,600
-51,800
-3% -$1.8M 0.06% 349
2021
Q4 		$52M Sell
1,481,400
-51,120
-3% -$1.7M 0.06% 325
2021
Q3 		$52.5M Sell
1,532,520
-25,744
-2% -$998K 0.07% 304
2021
Q2 		$53M Sell
1,558,264
-41,331
-3% -$1.36M 0.07% 306
2021
Q1 		$50.5M Sell
1,599,595
-21,005
-1% -$562K 0.06% 344
2020
Q4 		$39.5M Sell
1,620,600
-1,600
-0.1% -$34.7K 0.04% 436
2020
Q3 		$31.2M Buy
1,622,200
+4,300
+0.3% +$89.1K 0.03% 540
2020
Q2 		$36.7M Buy
1,617,900
+30,600
+2% +$627K 0.03% 531
2020
Q1 		$27.8M Buy
1,587,300
+7,812
+0.5% +$156K 0.03% 616
2019
Q4 		$35.7M Buy
1,579,488
+18,088
+1% +$399K 0.03% 688
2019
Q3 		$31.7M Buy
1,561,400
+73,724
+5% +$1.39M 0.03% 709
2019
Q2 		$22.9M Buy
1,487,676
+25,009
+2% +$408K 0.02% 892
2019
Q1 		$24.7M Buy
1,462,667
+22,901
+2% +$377K 0.02% 865
2018
Q4 		$24.2M Buy
1,439,766
+13,068
+0.9% +$223K 0.03% 773
2018
Q3 		$25.8M Buy
1,426,698
+12,650
+0.9% +$213K 0.03% 773
2018
Q2 		$25.2M Sell
1,414,048
-25,894
-2% -$452K 0.03% 784
2018
Q1 		$26.9M Sell
1,439,942
-40,449
-3% -$827K 0.03% 770
2017
Q4 		$30.8M Sell
1,480,391
-46,865
-3% -$1.05M 0.03% 674
2017
Q3 		$34.8M Sell
1,527,256
-104,682
-6% -$2.32M 0.04% 594
2017
Q2 		$38M Sell
1,631,938
-76,579
-4% -$1.71M 0.05% 494
2017
Q1 		$35.7M Buy
1,708,517
+419,040
+32% +$7.89M 0.05% 487
2016
Q4 		$21.4M Sell
1,289,477
-200,062
-13% -$3.83M 0.03% 741
2016
Q3 		$32.5M Buy
1,489,539
+266,543
+22% +$5.51M 0.06% 446
2016
Q2 		$24.4M Buy
1,222,996
+83,766
+7% +$1.65M 0.05% 570
2016
Q1 		$21.8M Buy
1,139,230
+121,791
+12% +$2.34M 0.04% 603
2015
Q4 		$22.2M Buy
1,017,439
+32,218
+3% +$655K 0.05% 496
2015
Q3 		$17.8M Buy
985,221
+31,219
+3% +$617K 0.04% 552
2015
Q2 		$23M Sell
954,002
-22,779
-2% -$585K 0.05% 455
2015
Q1 		$26.5M Buy
976,781
+141,666
+17% +$3.69M 0.06% 446
2014
Q4 		$21.5M Buy
835,115
+70,425
+9% +$1.68M 0.05% 469
2014
Q3 		$19.1M Buy
764,690
+52,456
+7% +$1.38M 0.05% 455
2014
Q2 		$18.9M Buy
712,234
+178,512
+33% +$4.49M 0.04% 505
2014
Q1 		$13M Buy
533,722
+158,547
+42% +$3.62M 0.03% 718
2013
Q4 		$7.95M Buy
375,175
+156,005
+71% +$3.12M 0.02% 910
2013
Q3 		$4.34M Sell
219,170
-73,601
-25% -$1.39M 0.01% 1244
2013
Q2 		$6.24M Buy
+292,771
New +$5.3M 0.02% 974

Other funds holding IMOS

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

Renaissance Technologies's IMOS Position: Q1 2026 in Review

Renaissance Technologies reduced its ChipMOS TECHNOLOGIES (IMOS) stake by 0.64% in Q1 2026, selling an estimated $272K and leaving 1,117,990 shares worth $40M. The position accounts for 0.06% of the portfolio, ranked #390.

Renaissance Technologies first reported a position in IMOS in Q2 2013 and has held it in 52 quarters since. The position peaked at $53M in Q2 2021. 72 funds tracked by Wall St. Rank hold IMOS as of Q1 2026.

  • Renaissance Technologies held 1,117,990 shares of ChipMOS TECHNOLOGIES worth $40M as of Q1 2026.
  • Renaissance Technologies sold 7,200 ChipMOS TECHNOLOGIES shares in Q1 2026, an estimated $272K.
  • ChipMOS TECHNOLOGIES made up 0.06% of Renaissance Technologies's portfolio in Q1 2026, its #390 holding.
  • Renaissance Technologies first reported a position in ChipMOS TECHNOLOGIES in Q2 2013 and has held it in 52 quarters since.
  • Renaissance Technologies's ChipMOS TECHNOLOGIES position peaked at $53M in Q2 2021.
  • 72 funds tracked by Wall St. Rank held ChipMOS TECHNOLOGIES as of Q1 2026.

Based on Renaissance Technologies's 13F filing for Q1 2026, filed 14 May 2026.