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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, Q3 2025

Institutional positions in Icon PLC as of Sep 30, 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
513
+30 vs. Q2 2025
Shares held
74.4M
−1.21M (−1.6%) vs. Q2 2025
Total value
$13.0B
+$2.04B (+18.6%) vs. Q2 2025
New holders
91
169 more added
Sold out
61
184 more reduced

6 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 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 holdersQ3 2025: 513 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 heldQ3 2025: $13.0B
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, Q3 2025

Shares, value and share of portfolio for each institution holding Icon PLC; share changes are against Q2 2025.

Institutions holding ICLR in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Prescott Group Capital Management, L.L.C.12,253$2.14M0.23%+12,253New
Hollow Brook Wealth Management LLC12,186$2.13M0.50%+1,678+16.0%Added
Rice Hall James & Associates, LLC12,163$2.13M0.12%+9,889+434.9%Added
Thor Investment Management Inc12,049$2.11M1.27%+5,675+89.0%Added
Verition Fund Management LLC11,600$2.03M0.01%+943+8.8%Added
EFG Asset Management (North America) Corp.11,336$1.98M0.26%+11,336New
US Bancorp11,328$1.98M0.00%+3,137+38.3%Added
National Bank of Canada11,057$1.94M0.00%+244+2.3%Added
Wiley Bros.-Aintree Capital, LLC10,568$1.85M0.01%+1,758+20.0%Added
Henry James International Management, Inc.10,353$1.81M0.55%−450−4.2%Reduced
Brant Point Investment Management LLC10,000$1.75M0.39%+3,000+42.9%Added
Lighthouse Investment Partners, LLC10,000$1.75M0.06%+10,000New
Rothschild Investment LLC9,885$1.73M0.10%+9,885New
Mitchell Capital Management Co9,297$1.63M0.28%+9,297New
Utah Retirement Systems8,677$1.52M0.01%−510−5.6%Reduced
Capital International Sarl8,492$1.49M0.03%+8,492New
Maridea Wealth Management LLC7,813$1.47M0.23%+7,813New
SG Americas Securities, LLC8,222$1.44M0.01%−7,740−48.5%Reduced
Centiva Capital, LP8,047$1.41M0.13%+8,047New
Magnetar Financial LLC7,903$1.38M0.01%+3,274+70.7%Added
Oppenheimer Asset Management Inc.7,901$1.38M0.02%−251−3.1%Reduced
Y-Intercept (Hong Kong) Ltd7,668$1.34M0.03%+7,668New
First National Advisers, LLC7,600$1.33M0.18%+662+9.5%Added
Westover Capital Advisors, LLC7,540$1.32M0.24%−114−1.5%Reduced
Highland Capital Management, LLC7,468$1.31M0.07%+400+5.7%Added
Diversified Trust Co7,250$1.27M0.03%+4,191+137.0%Added
Verdence Capital Advisors LLC6,839$1.24M0.07%+643+10.4%Added
EFG Asset Management (Americas) Corp.7,075$1.24M0.21%+7,075New
Raiffeisen Bank International AG7,500$1.23M0.02%00.0%Unchanged
CM Management, LLC7,000$1.23M1.02%+7,000New
Skylands Capital, LLC6,700$1.17M0.16%−3,150−32.0%Reduced
Handelsbanken Fonder AB6,563$1.15M0.00%−9,064−58.0%Reduced
Atria Investments LLC6,525$1.14M0.01%+525+8.8%Added
Stephens Inc6,436$1.13M0.01%−147−2.2%Reduced
NEOS Investment Management LLC6,429$1.13M0.01%+2,470+62.4%Added
Tema ETFs LLC6,429$1.13M0.09%+2,470+62.4%Added
SkyView Investment Advisors, LLC6,403$1.12M0.14%+82+1.3%Added
HighTower Advisors, LLC6,102$1.07M0.00%−2,931−32.4%Reduced
Washington Trust Advisors, Inc.6,062$1.06M0.08%00.0%Unchanged
Tributary Capital Management, LLC5,876$1.03M0.09%−495−7.8%Reduced
Ossiam5,840$1.02M0.01%+1,909+48.6%Added
Oddo BHF Asset Management SAS5,701$997.7K0.04%−205−3.5%Reduced
Squarepoint Ops LLC5,689$995.6K0.00%+3,345+142.7%Added
Robeco Schweiz AG5,582$976.9K0.02%−775−12.2%Reduced
Nicholas Hoffman & Company, LLC.5,507$963.7K0.02%+1,077+24.3%Added
Kestra Advisory Services, LLC5,302$927.8K0.00%+2,033+62.2%Added
Quantessence Capital LLC5,261$920.7K0.29%+5,261New
Brighton Jones LLC5,250$918.8K0.02%−34−0.6%Reduced
Bangor Savings Bank5,218$913.1K0.08%−11−0.2%Reduced
Legacy Capital Wealth Partners, LLC5,194$909.0K0.20%+1,367+35.7%Added
Redmond Asset Management, LLC5,149$901.1K0.22%−63−1.2%Reduced
Tealwood Asset Management Inc5,063$886.0K0.36%−108−2.1%Reduced
Resources Investment Advisors, LLC.4,884$854.7K0.01%+16+0.3%Added
Sanctuary Advisors, LLC4,876$853.3K0.00%+635+15.0%Added
Quantitative Investment Management, LLC4,808$841.0K0.12%+4,808New
Two Sigma Securities, LLC4,797$839.5K0.12%−2,475−34.0%Reduced
Confluence Investment Management LLC4,689$820.6K0.01%+557+13.5%Added
Creative Planning4,652$814.1K0.00%−26−0.6%Reduced
Commonwealth Equity Services, LLC4,601$805.0K0.00%+1,416+44.5%Added
Dynamic Technology Lab Private Ltd4,553$797.0K0.13%+4,553New
Cypress Advisory Group LLC4,540$794.5K0.59%+110+2.5%Added
MidWestOne Financial Group, Inc.4,509$789.1K0.10%−14−0.3%Reduced
Federation des caisses Desjardins du Quebec4,509$789.1K0.00%+29+0.6%Added
Kayne Anderson Rudnick Investment Management LLC4,493$786.3K0.00%−1,271−22.1%Reduced
Advisor Group Holdings, Inc.4,459$777.1K0.00%−382−7.9%Reduced
Capital International Ltd4,371$764.9K0.03%+4,371New
Cambridge Investment Research Advisors, Inc.4,198$735.0K0.00%+2,335+125.3%Added
Transatlantique Private Wealth LLC4,114$720.0K0.24%+212+5.4%Added
Nwam LLC3,812$718.4K0.04%00.0%Unchanged
Malaga Cove Capital, LLC4,070$712.3K0.26%+2,105+107.1%Added
Toroso Investments, LLC3,919$685.8K0.00%+103+2.7%Added
Northwestern Mutual Wealth Management Co3,903$683.0K0.00%−73−1.8%Reduced
Federated Hermes, Inc.3,840$672.0K0.00%00.0%Unchanged
Papp L Roy & Associates3,820$668.5K0.08%−818−17.6%Reduced
Motco3,806$666.0K0.06%+161+4.4%Added
Rathbone Brothers plc3,780$661.5K0.00%00.0%Unchanged
BancorpSouth Bank3,739$654.3K0.04%−6−0.2%Reduced
Standard Life Aberdeen plc3,738$654.1K0.00%−55,473−93.7%Reduced
Rockefeller Capital Management L.P.3,714$650.2K0.00%+3,714New
NewEdge Wealth, LLC3,907$639.6K0.01%+864+28.4%Added
Annis Gardner Whiting Capital Advisors, LLC3,605$630.9K0.13%+3,584+17,066.7%Added
Net Worth Advisory Group3,563$623.7K0.18%+1,581+79.8%Added
Trust Point Inc.3,532$618.1K0.05%+470+15.3%Added
Jump Financial, LLC3,520$616.0K0.01%−165,133−97.9%Reduced
Gibbs Wealth Management3,398$594.6K0.13%−276−7.5%Reduced
Sara-Bay Financial3,347$585.7K0.16%−77−2.2%Reduced
Annandale Capital, LLC3,300$577.5K0.10%00.0%Unchanged
Militia Capital Partners, LP3,200$560.0K0.26%−2,800−46.7%Reduced
Davenport & Co LLC3,194$559.0K0.00%+420+15.1%Added
Sumitomo Mitsui Trust Holdings, Inc.3,155$552.1K0.00%−22,687−87.8%Reduced
Assetmark, Inc3,134$548.5K0.00%+2,707+634.0%Added
Benjamin Edwards Inc3,076$538.3K0.01%+1,247+68.2%Added
Mariner, LLC3,041$532.2K0.00%+491+19.3%Added
Brave Warrior Advisors, LLC3,000$525.0K0.01%−2,000−40.0%Reduced
Portland Investment Counsel Inc.3,000$525.0K0.14%00.0%Unchanged
Cullen Investment Group, Ltd.2,681$519.8K0.07%−205−7.1%Reduced
Marietta Investment Partners LLC2,877$503.5K0.10%−14−0.5%Reduced
O'Shaughnessy Asset Management, LLC2,858$500.1K0.00%+46+1.6%Added
Pinnacle Associates Ltd2,849$498.6K0.01%+578+25.5%Added
Rhumbline Advisers2,848$498.4K0.00%+2,464+641.7%Added