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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 2025

Institutional positions in Icon PLC as of Dec 31, 2025. 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
514
+12 vs. Q3 2025
Shares held
77.4M
+3.18M (+4.3%) vs. Q3 2025
Total value
$14.1B
+$1.12B (+8.6%) vs. Q3 2025
New holders
84
157 more added
Sold out
72
193 more reduced

11 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2025: 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 2025: 514 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 2025: $14.1B
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 2025

Shares, value and share of portfolio for each institution holding Icon PLC; share changes are against Q3 2025.

Institutions holding ICLR in Q4 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Frontier Capital Management Co LLC72,744$13.3M0.14%+3,455+5.0%Added
Loomis Sayles & Co L P67,577$12.3M0.01%+2,866+4.4%Added
Distillate Capital Partners LLC66,140$12.1M0.62%−1,398−2.1%Reduced
Standard Life Aberdeen plc66,063$12.0M0.02%+62,325+1,667.3%Added
Hyperion Capital Advisors LP66,021$12.0M5.89%+16,757+34.0%Added
Motley Fool Asset Management LLC63,342$11.5M0.45%−2,413−3.7%Reduced
Bank of Montreal61,865$11.3M0.00%−17,326−21.9%Reduced
Edmond de Rothschild Holding S.A.61,332$11.2M0.16%+15,589+34.1%Added
Kelly Lawrence W & Associates Inc60,116$11.0M2.66%−140−0.2%Reduced
Palisade Capital Management LLC58,533$10.7M0.32%−6,372−9.8%Reduced
Moore Capital Management, LP57,190$10.4M0.21%+28,116+96.7%Added
DekaBank Deutsche Girozentrale30,885$10.3M0.02%00.0%Unchanged
Firetrail Investments Pty Ltd54,976$10.1M3.30%+1,711+3.2%Added
Charles Schwab Investment Management Inc54,464$9.92M0.00%+8,657+18.9%Added
Thornburg Investment Management Inc54,173$9.87M0.12%−3,028−5.3%Reduced
Eldred Rock Partners, LLC53,071$9.67M2.51%−5,946−10.1%Reduced
BNP PARIBAS ASSET MANAGEMENT Holding S.A.51,551$9.39M0.01%+51,131+12,174.0%Added
Capital International Sarl51,219$9.33M0.15%+42,727+503.1%Added
Osborne Partners Capital Management, LLC50,879$9.27M0.48%−711−1.4%Reduced
Van Eck Associates Corp50,701$9.24M0.01%−16,407−24.4%Reduced
Kingdon Capital Management, L.L.C.50,600$9.22M1.41%+50,600New
Arvin Capital Management LP50,160$9.14M1.97%−21,515−30.0%Reduced
BNP Paribas Arbitrage, SA49,501$9.02M0.01%−123,094−71.3%Reduced
CI Private Wealth, LLC49,137$8.95M0.01%−3,172−6.1%Reduced
ExodusPoint Capital Management, LP48,055$8.76M0.10%−56−0.1%Reduced
Motley Fool Wealth Management, LLC45,967$8.38M0.65%−11,982−20.7%Reduced
Marks Group Wealth Management, Inc45,554$8.30M0.79%−7,190−13.6%Reduced
Liontrust Investment Partners LLP43,817$7.98M0.12%−2,984−6.4%Reduced
Citadel Advisors LLC41,965$7.65M0.01%−228,014−84.5%Reduced
Vident Advisory, LLC41,059$7.48M0.07%+13,175+47.2%Added
Armor Advisors, L.L.C.39,868$7.26M7.61%+934+2.4%Added
Swedbank AB38,700$7.05M0.01%−9,400−19.5%Reduced
Gateway Investment Advisers LLC37,786$6.89M0.06%+136+0.4%Added
Bank of New York Mellon Corp36,262$6.61M0.00%+4,863+15.5%Added
First National Bank of Omaha35,836$6.53M0.19%+22+0.1%Added
Daiwa Securities Group Inc.34,994$6.38M0.02%+5,018+16.7%Added
Keystone Investors Pte Ltd33,526$6.11M0.55%00.0%Unchanged
Avidity Partners Management LP33,100$6.03M1.74%+33,100New
Ninety One SA (PTY) Ltd32,751$5.97M0.26%+143+0.4%Added
DnB Asset Management AS32,589$5.94M0.02%+7,794+31.4%Added
LVM Capital Management Ltd32,257$5.88M0.55%−732−2.2%Reduced
Timber Creek Capital Management LLC30,985$5.65M1.31%+30,985New
Financiere des Professionnels - Fonds d,investissement inc.29,343$5.35M0.30%−18,948−39.2%Reduced
Capital International Ltd29,246$5.33M0.19%+24,875+569.1%Added
Trillium Asset Management, LLC28,085$5.33M0.16%−7,621−21.3%Reduced
Two Sigma Investments, LP28,900$5.27M0.01%−61−0.2%Reduced
Circumference Group LLC28,000$5.10M5.69%00.0%Unchanged
Fayez Sarofim & Co27,804$5.07M0.01%−38,629−58.1%Reduced
Stifel Financial Corp27,660$5.04M0.00%−4,900−15.0%Reduced
Captrust Financial Advisors27,544$5.02M0.01%+451+1.7%Added
Strategic Global Advisors, LLC27,407$4.99M0.77%−20,158−42.4%Reduced
Walleye Trading LLC27,383$4.99M0.08%+2,796+11.4%Added
Natixis Advisors, L.P.27,264$4.97M0.01%+2,393+9.6%Added
Calamos Advisors LLC26,500$4.83M0.02%+26,500New
Foyston, Gordon, & Payne Inc26,354$4.80M1.05%−32,622−55.3%Reduced
Hunter Perkins Capital Management, LLC26,285$4.79M1.11%−185−0.7%Reduced
Colony Group, LLC25,801$4.70M0.01%−22,865−47.0%Reduced
Kornitzer Capital Management Inc25,037$4.56M0.09%−29,100−53.8%Reduced
Deutsche Bank AG25,010$4.56M0.00%−737−2.9%Reduced
LPL Financial LLC24,667$4.49M0.00%−4,497−15.4%Reduced
Truist Financial Corp24,587$4.48M0.01%−11,855−32.5%Reduced
Bellevue Group AG24,560$4.48M0.08%+313+1.3%Added
WCM Investment Management, LLC24,145$4.42M0.01%−119,768−83.2%Reduced
Janney Montgomery Scott LLC23,942$4.36M0.01%+93+0.4%Added
American Capital Management Inc23,732$4.32M0.19%−689−2.8%Reduced
SeaBridge Investment Advisors LLC22,263$4.06M0.67%+7,468+50.5%Added
National Philanthropic Trust21,832$3.98M0.04%−7,393−25.3%Reduced
Northern Trust Corp21,707$3.96M0.00%−934−4.1%Reduced
Pathstone Holdings, LLC21,264$3.87M0.01%+1,747+9.0%Added
Integrated Wealth Concepts LLC20,675$3.77M0.04%−2,198−9.6%Reduced
Sendero Wealth Management, LLC20,615$3.76M0.42%−389−1.9%Reduced
Romano Brothers and Company20,010$3.65M0.41%−4,278−17.6%Reduced
D.A. Davidson & Co.19,778$3.60M0.02%+221+1.1%Added
Handelsbanken Fonder AB19,188$3.50M0.01%+12,625+192.4%Added
Live Oak Private Wealth LLC18,815$3.43M0.47%+582+3.2%Added
Welch & Forbes LLC18,710$3.41M0.04%−25−0.1%Reduced
Bank Julius Baer & Co. Ltd, Zurich18,496$3.37M0.01%−1,662−8.2%Reduced
Kennedy Capital Management, Inc.18,166$3.31M0.07%+4,958+37.5%Added
Quartz Partners, LLC18,104$3.30M1.23%+2,145+13.4%Added
Manhattan West Asset Management, LLC17,939$3.27M0.67%+961+5.7%Added
Amundi17,810$3.25M0.00%+3,488+24.4%Added
Hantz Financial Services, Inc.17,574$3.20M0.05%−2,601−12.9%Reduced
Greenhaven Associates IncSuperinvestorGreenhaven Associates17,394$3.17M0.05%−15−0.1%Reduced
Banque de Luxembourg S.A.17,112$3.12M1.46%−632−3.6%Reduced
Capital International Inc16,872$3.07M0.02%+14,059+499.8%Added
Buckhead Capital Management LLC16,654$3.03M1.09%−893−5.1%Reduced
Oversea-Chinese Banking CORP Ltd16,248$2.96M0.08%+16,248New
Arkadios Wealth Advisors15,904$2.90M0.06%+2,072+15.0%Added
Blair William & Co14,746$2.69M0.01%−9,264−38.6%Reduced
Exencial Wealth Advisors, LLC14,699$2.68M0.08%−624−4.1%Reduced
London Co of Virginia14,438$2.63M0.02%+70.0%Added
Banque Pictet & Cie SA13,491$2.46M0.02%−424−3.0%Reduced
CWM Advisors, LLC13,488$2.46M0.22%−237−1.7%Reduced
USS Investment Management Ltd13,428$2.45M0.01%−556,207−97.6%Reduced
UBS Asset Management Americas Inc12,746$2.32M0.00%−296−2.3%Reduced
Cetera Investment Advisers12,638$2.30M0.00%−2,970−19.0%Reduced
Citigroup Inc12,438$2.27M0.00%−5,613−31.1%Reduced
Prescott Group Capital Management, L.L.C.12,253$2.23M0.21%00.0%Unchanged
Thor Investment Management Inc12,220$2.23M1.28%+171+1.4%Added
Verition Fund Management LLC12,001$2.19M0.01%+401+3.5%Added