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Which hedge funds own ICLR? ICON PLC, Q2 2026 13F holders

HealthcareDiagnostics & Research

50 tracked hedge funds disclosed a position in ICLR (ICON PLC) in their Q2 2026 13F filings, worth $2.8bn in total. The largest holder by portfolio weight is Hyperion Capital Advisors LP at 17.6% of its book. 16 opened a new position this quarter: Arvin Capital Management LP, Oribel Capital Management, LP, Sone Capital Management, LLC, Khrom Capital Management LLC. 29 exited: Madison Avenue Partners, LP, Sachem Head Capital Management LP, Impactive Capital LP.

50
Holders
Tracked managers whose filing for the quarter reports a long equity position in the security.
16
New this quarter
Holders whose previous filing (at most two quarters earlier) did not report the security.
29
Exited this quarter
Tracked managers whose previous filing reported the security and whose filing for the quarter does not.
$158m
Inflow, new holders
Combined value of the positions the new holders reported for the quarter.
$657m
Outflow, exits
Combined value the exiting managers reported for the security in their previous filing.
$2.8bn
Combined value
Sum of the holders' reported positions in the security.
4.0%
Share of managers holding
Holders as a share of tracked managers filing for that quarter. Comparable across the 2024 coverage expansion, where the raw holder count is not.

Holders, Q2 2026

50 rows
Hyperion Capital Advisors LP Hedge fund17.6%$39.0m224,665+58%added
Trinity Street Asset Management LLP Hedge fund13.7%$267m1.54m+27%added
Circumference Group LLC Hedge fund12.8%$5.9m34,000+17%added
Brave Warrior Advisors (Glenn Greenberg) Long-only investor11.9%$548m3.15m+5.2%added
Eagle Health Investments LP Hedge fund8.9%$53.5m308,143−14%reduced
Greenhaven Associates (Edgar Wachenheim) Long-only investor6.2%$539m3.10m+55%added
Ruane, Cunniff & Goldfarb (Sequoia Fund) Long-only investor5.5%$356m2.05m+25%added
Lakewood Capital Management, LP Hedge fund5.3%$102m585,200−22%reduced
Maple Rock Capital Partners Inc. Hedge fund4.1%$208m1.20m+258%added
Stanley Capital Management, LLC Hedge fund3.2%$24.3m140,160+40%added
Sio Capital Management, LLC Hedge fund2.6%$15.3m88,186−71%reduced
Arvin Capital Management LP Hedge fund2.1%$11.3m64,820–new
PFM Health Sciences, LP Hedge fund2.1%$23.7m136,482+137%added
Oribel Capital Management, LP Hedge fund1.4%$17.0m98,100–new
Formula Growth Ltd Hedge fund1.1%$3.2m18,692+167%added
Sone Capital Management, LLC Hedge fund1.1%$14.5m83,333–new
Khrom Capital Management LLC Hedge fund0.9%$10.8m61,900–new
683 Capital Management, LLC Hedge fund0.8%$8.3m48,000−23%reduced
Truffle Hound Capital, LLC Hedge fund0.7%$1.0m6,000−75%reduced
Kensico Capital Management Corp Hedge fund0.6%$32.7m188,000–new
Pavaki Capital Management LLC Hedge fund0.5%$869k5,0000.0%held
Prescott Group Capital Management, L.L.C. Hedge fund0.5%$5.7m32,6820.0%held
Fox Run Management, L.L.C. Hedge fund0.3%$1.5m8,750–new
Woodline Partners LP Hedge fund0.2%$56.8m327,184–new
D. E. Shaw & Co., Inc. Hedge fund0.1%$236m1.36m+13%added
Point72 Asset Management, L.P. Hedge fund0.10%$63.6m365,945+3610%added
Concentric Capital Strategies, LP Hedge fund0.09%$1.4m8,126–new
Persistent Asset Partners Ltd Hedge fund0.08%$249k1,431−58%reduced
Moore Capital Management, LP Hedge fund0.08%$3.4m19,382−87%reduced
SummitTX Capital, L.P. Hedge fund0.07%$2.6m15,199–new
Verition Fund Management LLC Hedge fund0.07%$9.3m53,631+27%added
Polar Capital Holdings Plc Hedge fund0.06%$20.3m116,939+16%added
Trexquant Investment LP Hedge fund0.05%$8.4m48,182−23%reduced
Schonfeld Strategic Advisors LLC Hedge fund0.05%$9.5m54,575+10.0%added
Numerai GP LLC Hedge fund0.05%$561k3,229−71%reduced
Boothbay Fund Management, LLC Hedge fund0.03%$1.8m10,402–new
Marshall Wace, LLP Hedge fund0.03%$30.5m175,440+1121%added
CenterBook Partners LP Hedge fund0.02%$457k2,630−51%reduced
Tudor Investment Corp ET AL Hedge fund0.02%$4.6m26,270−60%reduced
Citadel Advisors LLC Hedge fund0.01%$25.8m148,573−41%reduced
Squarepoint Ops LLC Hedge fund0.01%$5.7m33,000–new
Engineers Gate Manager LP Hedge fund0.01%$594k3,417–new
Millennium Management LLC Hedge fund0.01%$8.4m48,483−4.5%reduced
Pin Oak Investment Advisors Inc Hedge fund0.0%$7.0k380.0%held
Jain Global LLC Hedge fund0.0%$365k2,100–new
Quantbot Technologies LP Hedge fund0.0%$108k623–new
Magnetar Financial LLC Hedge fund0.0%$212k1,221–new
Balyasny Asset Management L.P. Hedge fund0.0%$844k4,859−96%reduced
Renaissance Technologies LLC Hedge fund0.0%$782k4,500–new
CVA Family Office, LLC Family office0.0%$10.2k59+44%added