CHIPMOS TECHNOLOGIES INC-ADR (IMOS) Stock Institutional Trading Activity


CHIPMOS TECHNOLOGIES INC-ADR (IMOS) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q4 2025), investors with some of the largest reported share count changes include Renaissance Technologies LLC. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.

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Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q4 2025Renaissance Technologies LLCSell-16,4001,125,190$33,339,380
Q3 2025Renaissance Technologies LLCSell-10,6001,141,590$21,815,785
Q2 2025Renaissance Technologies LLCSell-16,0001,152,190$20,866,161
Q1 2025Renaissance Technologies LLCSell-15,6001,168,190$19,672,320
Q4 2024Renaissance Technologies LLCSell-36,8011,183,790$22,290,766
Q3 2024Renaissance Technologies LLCSell-16,3001,220,591$28,561,829
Q2 2024Renaissance Technologies LLCSell-6,1001,236,891$32,295,224
Q1 2024Renaissance Technologies LLCBuy2,8001,242,991$39,092
Q4 2023Renaissance Technologies LLCSell-6,3001,240,191$33,746
Q3 2023Renaissance Technologies LLCSell-16,0091,246,491$28,732
Q2 2023Renaissance Technologies LLCSell-18,1001,262,500$29,909
Q1 2023Renaissance Technologies LLCSell-29,5001,280,600$32,156
Q4 2022Renaissance Technologies LLCSell-53,4001,310,100$28,075
Q3 2022Renaissance Technologies LLCSell-70,6001,363,500$25,266
Q2 2022Renaissance Technologies LLCBuy4,5001,434,100$35,824
Q1 2022Renaissance Technologies LLCSell-51,8001,429,600$50,794
Q4 2021Renaissance Technologies LLCSell-51,1201,481,400$52,042
Q3 2021Renaissance Technologies LLCSell-25,7441,532,520$52,458
Q2 2021Renaissance Technologies LLCSell-41,3311,558,264$52,958
Q1 2021Renaissance Technologies LLCSell-21,0051,599,595$50,544
Q4 2020Renaissance Technologies LLCSell-1,6001,620,600$39,462
Q3 2020Renaissance Technologies LLCBuy4,3001,622,200$31,244
Q2 2020Renaissance Technologies LLCBuy30,6001,617,900$36,678
Q1 2020Renaissance Technologies LLCBuy7,8121,587,300$27,762
Q4 2019Renaissance Technologies LLCBuy18,0881,579,488$35,712
Q3 2019Renaissance Technologies LLCBuy73,7241,561,400$31,681
Q2 2019Renaissance Technologies LLCBuy25,0091,487,676$22,880
Q1 2019Renaissance Technologies LLCBuy22,9011,462,667$24,690
Q4 2018Renaissance Technologies LLCBuy1,439,7661,439,766$24,246

Frequently asked questions about IMOS activity

  • Which institutional owners are buying IMOS?

    Institutional owners buying IMOS include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in IMOS activity?

    "Buy" means an investor increased their reported position in IMOS compared to the prior reporting period. This reflects growing exposure to CHIPMOS TECHNOLOGIES INC-ADR (IMOS) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in IMOS increasing?

    Institutional interest in IMOS can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.