ICON PLC (ICLR) Stock Institutional Trading Activity


ICON PLC (ICLR) 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 Polen Capital Management, Cullen Value Fund, Greenhaven Associates, Muhlenkamp & Co, and Sequoia Fund. 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
Q3 2024Polen Capital ManagementSell-31,2921,053,770$302,758,583
Q3 2024Cullen Value FundSell-845,080$1,459,535
Q2 2024Sequoia Financial AdvisorsBuy66674$211,279
Q2 2024Renaissance Technologies LLCSell-45,059225,999$70,843,907
Q2 2024Polen Capital ManagementSell-13,1571,085,062$340,134,263
Q2 2024Cullen Value FundSell-3005,164$1,618,759
Q1 2024Renaissance Technologies LLCSell-95,700271,058$91,062
Q1 2024Sequoia Financial AdvisorsBuy608608$204,258
Q1 2024Polen Capital ManagementSell-93,3961,098,219$368,946,776
Q1 2024Cullen Value FundSell-2605,464$1,763,069
Q4 2023Renaissance Technologies LLCSell-138,300366,758$103,818
Q4 2023Polen Capital ManagementSell-31,3461,191,615$5,171,232
Q4 2023Cullen Value FundBuy5,7245,724$1,620,293
Q3 2023Renaissance Technologies LLCSell-184,100505,058$124,371
Q3 2023Polen Capital ManagementSell-243,0601,222,961$301,154,200
Q2 2023Renaissance Technologies LLCSell-195,425689,158$172,427
Q2 2023Hancock Classic ValueSell-1,251826$206,665
Q2 2023Brave Warrior AdvisorsBuy950950$237,690
Q2 2023Polen Capital ManagementSell-20,6931,466,021$366,798,511
Q1 2023Renaissance Technologies LLCSell-223,100884,583$188,938
Q1 2023Polen Capital ManagementSell-45,2251,486,714$317,547,297
Q4 2022Renaissance Technologies LLCBuy120,8251,107,683$215,167
Q4 2022Hancock Classic ValueBuy2,0772,077$403,457
Q4 2022Polen Capital ManagementSell-131,0851,531,939$297,579,125
Q3 2022Renaissance Technologies LLCSell-163,100986,858$181,365
Q3 2022Polen Capital ManagementBuy258,2491,663,024$305,631
Q2 2022Renaissance Technologies LLCSell-127,0001,149,958$249,196
Q2 2022Polen Capital ManagementSell-152,2751,404,775$304,415
Q1 2022Renaissance Technologies LLCSell-140,8001,276,958$310,582
Q1 2022Polen Capital ManagementSell-29,7091,557,050$378,706

Frequently asked questions about ICLR activity

  • Which institutional owners are buying ICLR?

    Institutional owners buying ICLR 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 ICLR activity?

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

  • Is institutional interest in ICLR increasing?

    Institutional interest in ICLR 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.