ICU MEDICAL INC (ICUI) Stock Institutional Trading Activity


ICU MEDICAL INC (ICUI) 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, First Eagle U.S. Value, Sequoia Financial Advisors, and Engaged Capital. 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
Q1 2018Renaissance Technologies LLCSell-23,600309,100$78,017
Q4 2017Renaissance Technologies LLCSell-110,300332,700$71,863
Q3 2017Renaissance Technologies LLCSell-145,300443,000$82,332
Q2 2017Renaissance Technologies LLCSell-108,549588,300$101,482
Q1 2017Renaissance Technologies LLCSell-42,851696,849$106,409
Q4 2016Renaissance Technologies LLCBuy700739,700$108,995
Q3 2016Renaissance Technologies LLCSell-54,100739,000$93,395
Q2 2016Renaissance Technologies LLCSell-48,900793,100$89,422
Q1 2016Renaissance Technologies LLCBuy29,200842,000$87,652
Q4 2015Renaissance Technologies LLCBuy50,200812,800$91,668
Q3 2015Renaissance Technologies LLCBuy73,866762,600$83,505
Q2 2015Renaissance Technologies LLCBuy79,034688,734$65,884
Q1 2015Renaissance Technologies LLCBuy64,959609,700$56,787
Q4 2014Renaissance Technologies LLCSell-13,159544,741$44,614
Q3 2014Engaged CapitalBuy22,71122,711$1,458
Q3 2014Renaissance Technologies LLCSell-87,600557,900$35,806
Q2 2014Renaissance Technologies LLCSell-86,701645,500$39,253
Q1 2014Renaissance Technologies LLCBuy133,701732,201$43,844
Q4 2013Renaissance Technologies LLCBuy203,900598,500$38,130
Q3 2013Renaissance Technologies LLCBuy141,000394,600$26,805
Q2 2013Renaissance Technologies LLCBuy253,600253,600$18,274

Frequently asked questions about ICUI activity

  • Which institutional owners are buying ICUI?

    Institutional owners buying ICUI 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 ICUI activity?

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

  • Is institutional interest in ICUI increasing?

    Institutional interest in ICUI 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.