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Icon PLC

ICLR
Exchange
Nasdaq
Industry
Services-Commercial Physical & Biological Research
SEC CIK
0001060955

In the last 90 days, Icon PLC insiders filed 0 open-market purchases and 12 sales; 423 institutions reported holding it in 13F filings for Q2 2026, worth $13.9B in total; superinvestors Harris Associates (Oakmark) and Greenhaven Associates hold it.

13F holders, Q4 2021

Institutional positions in Icon PLC as of Dec 31, 2021. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
548
+43 vs. Q3 2021
Shares held
73.4M
−114.5K (−0.2%) vs. Q3 2021
Total value
$22.7B
+$3.40B (+17.6%) vs. Q3 2021
New holders
97
188 more added
Sold out
54
177 more reduced

5 institutions that held it in Q3 2021 haven't filed for Q4 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2021: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting ICLR on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ4 2021: 548 institutions
Q1 2021: 426 institutionsQ2 2021: 449 institutionsQ3 2021: 510 institutionsQ4 2021: 548 institutionsQ1 2022: 512 institutionsQ2 2022: 510 institutionsQ3 2022: 488 institutionsQ4 2022: 531 institutionsQ1 2023: 538 institutionsQ2 2023: 534 institutionsQ3 2023: 556 institutionsQ4 2023: 603 institutionsQ1 2024: 648 institutionsQ2 2024: 676 institutionsQ3 2024: 662 institutionsQ4 2024: 596 institutionsQ1 2025: 562 institutionsQ2 2025: 489 institutionsQ3 2025: 513 institutionsQ4 2025: 514 institutionsQ1 2026: 420 institutionsQ2 2026: 423 institutions
Value heldQ4 2021: $22.7B
Q1 2021: $10.0BQ2 2021: $12.3BQ3 2021: $19.3BQ4 2021: $22.7BQ1 2022: $17.8BQ2 2022: $16.2BQ3 2022: $13.9BQ4 2022: $14.5BQ1 2023: $16.1BQ2 2023: $19.9BQ3 2023: $19.7BQ4 2023: $22.1BQ1 2024: $26.1BQ2 2024: $24.3BQ3 2024: $22.4BQ4 2024: $16.0BQ1 2025: $13.3BQ2 2025: $11.2BQ3 2025: $13.0BQ4 2025: $14.1BQ1 2026: $8.74BQ2 2026: $13.9B
Institutions holding ICLR and their total value by quarter
QuarterHoldersValue
Q2 2026423$13.9B
Q1 2026420$8.74B
Q4 2025514$14.1B
Q3 2025513$13.0B
Q2 2025489$11.2B
Q1 2025562$13.3B
Q4 2024596$16.0B
Q3 2024662$22.4B
Q2 2024676$24.3B
Q1 2024648$26.1B
Q4 2023603$22.1B
Q3 2023556$19.7B
Q2 2023534$19.9B
Q1 2023538$16.1B
Q4 2022531$14.5B
Q3 2022488$13.9B
Q2 2022510$16.2B
Q1 2022512$17.8B
Q4 2021548$22.7B
Q3 2021510$19.3B
Q2 2021449$12.3B
Q1 2021426$10.0B

Institutions, Q4 2021

Shares, value and share of portfolio for each institution holding Icon PLC; share changes are against Q3 2021.

Institutions holding ICLR in Q4 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Morgan Stanley346,992$107.5M0.01%−5,582−1.6%Reduced
BlackRock Inc.353,774$109.6M0.00%+4,921+1.4%Added
SEI Investments Co358,186$110.9M0.21%+87,661+32.4%Added
Envestnet Asset Management Inc366,864$113.6M0.06%+16,613+4.7%Added
Baird Financial Group, Inc.378,245$117.1M0.27%−11,726−3.0%Reduced
Franklin Resources Inc399,359$123.7M0.04%−143,956−26.5%Reduced
TD Asset Management Inc404,458$125.3M0.10%+103,683+34.5%Added
New York State Common Retirement Fund409,971$127.0M0.13%−32,765−7.4%Reduced
Putnam Investments LLC428,521$132.7M0.19%−50,858−10.6%Reduced
Pensioenfonds Rail & Ov443,683$137.4M3.25%−70,898−13.8%Reduced
Earnest Partners LLC482,714$149.5M0.86%−21,628−4.3%Reduced
Northern Trust Corp486,356$150.6M0.02%+6,613+1.4%Added
Alliancebernstein L.P.551,593$170.8M0.06%+37,979+7.4%Added
Stephens Investment Management Group LLC594,130$184.0M2.38%−31,240−5.0%Reduced
Bank of America Corp603,675$187.0M0.02%+5,700+1.0%Added
Marshall Wace, LLP619,530$191.9M0.38%+617,927+38,548.2%Added
Neuberger Berman Group LLC646,350$196.3M0.15%−16,987−2.6%Reduced
Trinity Street Asset Management LLP644,473$199.6M21.93%−4,151−0.6%Reduced
Sustainable Growth Advisers, LP672,231$208.2M1.06%+654,523+3,696.2%Added
American Capital Management Inc716,925$222.0M5.70%−2,838−0.4%Reduced
Norges Bank733,322$227.1M0.05%+5,744+0.8%Added
Principal Financial Group Inc771,469$238.9M0.14%+6,310+0.8%Added
Wasatch Advisors Inc781,142$241.9M0.99%−246,398−24.0%Reduced
Bamco Inc792,531$245.4M0.52%−61,155−7.2%Reduced
Invesco Ltd.837,290$259.3M0.06%+17,860+2.2%Added
Steadfast Capital Management LP879,305$272.3M4.65%+117,324+15.4%Added
William Blair Investment Management, LLC902,807$279.6M0.76%−10,913−1.2%Reduced
Standard Life Aberdeen plc917,313$284.1M0.62%+195,743+27.1%Added
Capital Research Global Investors919,952$284.9M0.06%+2010.0%Added
AustralianSuper Pty Ltd1,089,609$313.8M1.73%+2,352+0.2%Added
Westfield Capital Management Co LP1,254,559$388.5M2.31%−30,384−2.4%Reduced
Acadian Asset Management LLC1,335,662$413.6M1.55%−657,565−33.0%Reduced
Pendal Group Limited1,353,961$419.3M3.36%−338,187−20.0%Reduced
Artisan Partners Limited Partnership1,373,074$425.2M0.51%+915,062+199.8%Added
Renaissance Technologies LLC1,417,758$439.1M0.55%−136,800−8.8%Reduced
FIL Ltd1,425,553$441.5M0.45%−171,684−10.7%Reduced
FMR LLC1,542,418$477.7M0.04%+1,463,597+1,856.9%Added
Ninety One UK Ltd1,567,089$485.3M1.15%−13,351−0.8%Reduced
Polen Capital Management LLC1,586,759$491.4M0.83%−73,091−4.4%Reduced
American Century Companies Inc2,021,663$626.1M0.40%+75,591+3.9%Added
Boston Partners2,114,899$654.5M0.79%−40,538−1.9%Reduced
Comgest Global Investors S.A.S.2,312,599$716.2M9.53%−501,039−17.8%Reduced
Janus Henderson Group PLC2,345,721$726.6M0.30%+109,277+4.9%Added
Clearbridge Investments, LLC2,417,384$748.7M0.51%+53,929+2.3%Added
Wellington Management Group LLP5,154,597$1.60B0.26%+105,972+2.1%Added
WCM Investment Management, LLC7,179,979$2.22B5.01%+19,690+0.3%Added
Massachusetts Financial Services Co7,228,230$2.24B0.61%−233,475−3.1%Reduced
Sofos Investments, Inc.11,470––+11,408+18,400.0%Added
Arrowstreet Capital, Limited Partnership0$00.00%−253,247−100.0%Sold out
Point72 Asset Management, L.P.0$00.00%−182,300−100.0%Sold out
Alyeska Investment Group, L.P.0$00.00%−166,771−100.0%Sold out
Two Sigma Investments, LP0$00.00%−109,324−100.0%Sold out
Ergoteles LLC0$00.00%−86,564−100.0%Sold out
Endurant Capital Management LP0$00.00%−46,720−100.0%Sold out
Brookfield Asset Management Inc.0$00.00%−45,845−100.0%Sold out
Balyasny Asset Management LLC0$00.00%−37,785−100.0%Sold out
Quadrature Capital Ltd0$00.00%−35,314−100.0%Sold out
Bell Asset Management Ltd0$00.00%−34,577−100.0%Sold out
Pictet Asset Management SA0$00.00%−19,851−100.0%Sold out
PEAK6 Investments LLC0$00.00%−17,381−100.0%Sold out
AMP Capital Investors Ltd0$00.00%−16,260−100.0%Sold out
CastleArk Alternatives, LLC0$00.00%−13,245−100.0%Sold out
Jump Financial, LLC0$00.00%−10,078−100.0%Sold out
L & S Advisors Inc0$00.00%−8,158−100.0%Sold out
Washington Trust Co0$00.00%−7,075−100.0%Sold out
Cinctive Capital Management LP0$00.00%−6,899−100.0%Sold out
Voya Investment Management LLC0$00.00%−6,491−100.0%Sold out
Northwest & Ethical Investments L.P.0$00.00%−6,169−100.0%Sold out
FFT Wealth Management LLC0$00.00%−4,152−100.0%Sold out
Capula Management Ltd0$00.00%−3,914−100.0%Sold out
Legg Mason Asset Management (Japan) Co., Ltd.0$00.00%−3,483−100.0%Sold out
Cornercap Investment Counsel Inc0$00.00%−2,623−100.0%Sold out
Simplex Trading, LLC0$00.00%−2,921−100.0%Sold out
Centiva Capital, LP0$00.00%−2,385−100.0%Sold out
SG Americas Securities, LLC0$00.00%−2,160−100.0%Sold out
Dynamic Technology Lab Private Ltd0$00.00%−1,884−100.0%Sold out
Sawtooth Solutions, LLC0$00.00%−1,621−100.0%Sold out
Winton Group Ltd0$00.00%−1,352−100.0%Sold out
Walleye Capital LLC0$00.00%−1,301−100.0%Sold out
Engineers Gate Manager LP0$00.00%−1,029−100.0%Sold out
TT International Asset Management LTD0$00.00%−1,000−100.0%Sold out
South Dakota Investment Council0$00.00%−261−100.0%Sold out
Arkadios Wealth Advisors0$00.00%−216−100.0%Sold out
Kowal Investment Group, LLC0$00.00%−200−100.0%Sold out
Liberty Wealth Management LLC0$00.00%−119−100.0%Sold out
Cahill Financial Advisors Inc0$00.00%−118−100.0%Sold out
Consolidated Planning Corp0$00.00%−120−100.0%Sold out
Thompson Siegel & Walmsley LLC0$00.00%−111−100.0%Sold out
Meeder Asset Management Inc0$00.00%−78−100.0%Sold out
CX Institutional0$00.00%−60−100.0%Sold out
Public Employees Retirement Association of Colorado0$00.00%−52−100.0%Sold out
O'Shaughnessy Asset Management, LLC0$00.00%−41−100.0%Sold out
Better Money Decisions, LLC0$00.00%−33−100.0%Sold out
West Oak Capital, LLC0$00.00%−30−100.0%Sold out
Creative Financial Designs Inc0$00.00%−25−100.0%Sold out
Global Retirement Partners, LLC0$00.00%−25−100.0%Sold out
Hartford Financial Management Inc.0$00.00%−17−100.0%Sold out
Jacobi Capital Management LLC0$00.00%−12−100.0%Sold out
Guidance Point Advisors, LLC0$00.00%−13−100.0%Sold out
Bellwether Advisors, LLC0$00.00%−6−100.0%Sold out