Jane Street
IMOS

Jane Street’s ChipMOS TECHNOLOGIES IMOS Stock Holding History

Jane Street’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 		$326K Buy
+9,113
New +$344K ﹤0.01% 9052
2024
Q3 		– Sell
-10,762
Closed -$281K – 9969
2024
Q2 		$281K Buy
+10,762
New +$301K ﹤0.01% 7902
2024
Q1 		– Sell
-27,230
Closed -$741K – 9609
2023
Q4 		$741K Buy
+27,230
New +$684K ﹤0.01% 6112
2021
Q4 		– Sell
-40,423
Closed -$1.39M – 10425
2021
Q3 		$1.39M Buy
40,423
+27,654
+217% +$1.07M ﹤0.01% 5255
2021
Q2 		$436K Buy
+12,769
New +$421K ﹤0.01% 7497
2020
Q4 		– Sell
-13,918
Closed -$274K – 7768
2020
Q3 		$274K Buy
+13,918
New +$288K ﹤0.01% 6017
2020
Q2 		– Sell
-13,347
Closed -$235K – 7300
2020
Q1 		$235K Sell
13,347
-12,745
-49% -$255K ﹤0.01% 4485
2019
Q4 		$596K Buy
+26,092
New +$575K ﹤0.01% 3475
2018
Q1 		– Sell
-10,198
Closed -$214K – 5077
2017
Q4 		$214K Buy
+10,198
New +$230K ﹤0.01% 4135
2017
Q3 		– Sell
-11,484
Closed -$270K – 4742
2017
Q2 		$270K Sell
11,484
-19,998
-64% -$446K ﹤0.01% 3708
2017
Q1 		$663K Buy
+31,482
New +$592K ﹤0.01% 2556
2014
Q3 		– Sell
-85,616
Closed -$2.28M – 2793
2014
Q2 		$2.28M Buy
+85,616
New +$2.15M 0.03% 490
2014
Q1 		– Sell
-23,699
Closed -$502K – 2858
2013
Q4 		$502K Sell
23,699
-3,444
-13% -$68.9K 0.01% 1229
2013
Q3 		$538K Sell
27,143
-2,407
-8% -$45.5K 0.01% 1640
2013
Q2 		$630K Buy
+29,550
New +$535K 0.01% 1243

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

Jane Street's IMOS Position: Q1 2026 in Review

Jane Street opened a new position in ChipMOS TECHNOLOGIES (IMOS) in Q1 2026: 9,113 shares worth $326K. The stake represents ﹤0.01% of the portfolio and ranks #9052 among its holdings. This is a return to the name: Jane Street previously reported a position in IMOS as recently as Q2 2024.

Jane Street first reported a position in IMOS in Q2 2013 and has held it in 15 quarters since. The position peaked at $2.28M in Q2 2014. 72 funds tracked by Wall St. Rank hold IMOS as of Q1 2026.

  • Jane Street held 9,113 shares of ChipMOS TECHNOLOGIES worth $326K as of Q1 2026.
  • ChipMOS TECHNOLOGIES was a new Jane Street position in Q1 2026.
  • ChipMOS TECHNOLOGIES made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #9052 holding.
  • Jane Street first reported a position in ChipMOS TECHNOLOGIES in Q2 2013 and has held it in 15 quarters since.
  • Jane Street's ChipMOS TECHNOLOGIES position peaked at $2.28M in Q2 2014.
  • 72 funds tracked by Wall St. Rank held ChipMOS TECHNOLOGIES as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.