ICON PLC (ICLR) Institutional Ownership Changes & 13F Activity

ICON PLC (ICLR). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings. This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Brave Warrior Advisors, Greenhaven Associates, Sound Shore Management, Sequoia Fund, and Muhlenkamp & Co.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2026Brave Warrior AdvisorsBuy2,993,8112,996,811$331,627,105
Q1 2026Greenhaven AssociatesBuy1,985,0172,002,411$221,586,801
Q1 2026Sound Shore ManagementBuy626,958626,958$69,379,172
Q1 2026Sequoia FundSell-44,9791,634,611$180,886,053
Q1 2026Muhlenkamp & CoSell-7,86066,005$7,304,113
Q4 2025Polen Capital ManagementSell-338,255105,206$19,170,588
Q4 2025Sequoia FundSell-21,4041,679,590$306,054,890
Q4 2025Cullen Value FundSell-5082,173$394,139
Q4 2025Muhlenkamp & CoBuy39873,865$13,459,680
Q4 2025Greenhaven AssociatesSell-1517,394$3,169,535
Q3 2025Polen Capital ManagementSell-96,949443,461$77,605,716
Q3 2025Muhlenkamp & CoBuy73,46773,467$12,856,725
Q3 2025Sequoia FundSell-7,1891,700,994$297,673,950
Q3 2025Brave Warrior AdvisorsSell-2,0003,000$525,000
Q3 2025Greenhaven AssociatesSell-22417,409$3,046,575
Q3 2025Cullen Value FundSell-2052,681$519,819
Q2 2025Cantillon Capital ManagementBuy465,197465,197$67,662,904
Q2 2025Sequoia FundBuy453,8331,708,183$248,455,217
Q2 2025Renaissance Technologies LLCBuy145,900324,824$47,245,651
Q2 2025Polen Capital ManagementSell-94,642540,410$78,602,580
Q2 2025Greenhaven AssociatesBuy17,63317,633$2,564,720
Q2 2025Cullen Value FundSell-1,2512,886$419,769
Q2 2025Parnassus Endeavor FundSell-36853,539$7,787,248
Q1 2025Baupost GroupBuy405,000405,000$70,871
Q1 2025Polen Capital ManagementSell-76,458635,052$111,127,679
Q1 2025Parnassus Endeavor FundBuy53,90753,907$9,433,186
Q1 2025Renaissance Technologies LLCBuy53,125178,924$31,309,911
Q1 2025Sequoia FundSell-11,1901,254,350$219,498,707
Q1 2025Brave Warrior AdvisorsBuy2,0005,000$874,950
Q1 2025Cullen Value FundSell-8434,137$723,934

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.

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