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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, Q1 2025

Institutional positions in Icon PLC as of Mar 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
562
−23 vs. Q4 2024
Shares held
75.8M
−297.4K (−0.4%) vs. Q4 2024
Total value
$13.3B
−$2.68B (−16.8%) vs. Q4 2024
New holders
72
192 more added
Sold out
95
225 more reduced

11 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2024: 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 holdersQ1 2025: 562 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 heldQ1 2025: $13.3B
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, Q1 2025

Shares, value and share of portfolio for each institution holding Icon PLC; share changes are against Q4 2024.

Institutions holding ICLR in Q1 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Integrated Wealth Concepts LLC18,670$3.27M0.04%+16,911+961.4%Added
Equitable Trust Co18,072$3.16M0.18%−242−1.3%Reduced
Oppenheimer Asset Management Inc.17,842$3.12M0.04%−1,996−10.1%Reduced
Banque de Luxembourg S.A.17,713$3.10M1.77%−1,025−5.5%Reduced
Truist Financial Corp17,667$3.09M0.00%+151+0.9%Added
Azimuth Capital Investment Management LLC16,815$2.94M0.12%−1,307−7.2%Reduced
Manhattan West Asset Management, LLC16,640$2.91M0.74%+3,483+26.5%Added
Bessemer Group Inc15,638$2.74M0.00%−795,062−98.1%Reduced
The PNC Financial Services Group, Inc.14,411$2.52M0.00%−528−3.5%Reduced
Exencial Wealth Advisors, LLC14,380$2.52M0.09%+1,479+11.5%Added
SG Americas Securities, LLC14,219$2.49M0.01%+11,440+411.7%Added
Federation des caisses Desjardins du Quebec14,016$2.45M0.01%+1,379+10.9%Added
Brant Point Investment Management LLC14,000$2.45M0.60%00.0%Unchanged
LRT Capital Management, LLC13,830$2.42M1.66%+10,357+298.2%Added
TownSquare Capital, LLC12,771$2.23M0.02%−5,092−28.5%Reduced
Eagle Global Advisors LLC12,224$2.14M0.09%−2,300−15.8%Reduced
Atria Investments LLC12,216$2.14M0.03%+2,593+26.9%Added
Schonfeld Strategic Advisors LLC11,892$2.08M0.01%+11,892New
MML Investors Services, LLC11,872$2.08M0.01%−5,049−29.8%Reduced
Susquehanna International Group, LLP11,731$2.05M0.00%−16,107−57.9%Reduced
Verition Fund Management LLC11,594$2.03M0.01%+11,594New
Trexquant Investment LP11,040$1.93M0.02%+11,040New
Brinker Capital Investments, LLC11,021$1.93M0.02%−9,685−46.8%Reduced
Orion Portfolio Solutions, LLC11,021$1.93M0.02%−9,685−46.8%Reduced
Eversept Partners, LP10,840$1.90M0.21%−8,412−43.7%Reduced
Henry James International Management, Inc.10,840$1.90M0.65%+40.0%Added
CenterBook Partners LP10,742$1.88M0.12%−18,274−63.0%Reduced
CWM Advisors, LLC10,329$1.81M0.21%+2,170+26.6%Added
Quartz Partners, LLC10,027$1.75M1.07%+5,229+109.0%Added
Headlands Technologies LLC9,856$1.72M0.20%+6,261+174.2%Added
Glenmede Trust Co NA9,544$1.67M0.01%−220−2.3%Reduced
Live Oak Private Wealth LLC9,363$1.64M0.27%+870+10.2%Added
Advisor Group Holdings, Inc.9,286$1.62M0.00%+2,059+28.5%Added
Utah Retirement Systems9,187$1.61M0.02%00.0%Unchanged
XTX Topco Ltd9,158$1.60M0.08%+9,158New
Thor Investment Management Inc9,129$1.60M1.17%+522+6.1%Added
Pettee Investors, Inc.9,101$1.59M0.95%00.0%Unchanged
Zions Bancorporation, National Association8,840$1.55M0.10%+8,840New
Littlejohn Financial Services, Inc.8,462$1.48M1.17%+8,462New
Westover Capital Advisors, LLC8,171$1.43M0.32%−6,722−45.1%Reduced
Snowden Capital Advisors LLC8,047$1.41M0.05%−298−3.6%Reduced
HRT Financial LP8,035$1.41M0.01%−186−2.3%Reduced
Papp L Roy & Associates7,976$1.40M0.17%−507−6.0%Reduced
Avantax Advisory Services, Inc.7,944$1.39M0.01%−1,373−14.7%Reduced
Mount Yale Investment Advisors, LLC7,933$1.39M0.12%+97+1.2%Added
Arkadios Wealth Advisors7,828$1.37M0.05%+6,666+573.7%Added
Graham Capital Management, L.P.7,766$1.36M0.04%+1,368+21.4%Added
Verdence Capital Advisors LLC7,454$1.30M0.10%−5,196−41.1%Reduced
Delta Global Management LP7,245$1.27M0.09%+7,245New
Highland Capital Management, LLC7,198$1.26M0.08%−550−7.1%Reduced
Buckhead Capital Management LLC7,192$1.26M0.40%+7,192New
Raiffeisen Bank International AG7,000$1.25M0.02%+2,000+40.0%Added
Channel Wealth LLC7,119$1.25M0.39%+1,233+20.9%Added
Rhenman & Partners Asset Management AB7,000$1.22M0.14%+7,000New
Polar Asset Management Partners Inc.6,954$1.22M0.04%+6,954New
Entropy Technologies, LP6,874$1.20M0.12%+700+11.3%Added
MidWestOne Financial Group, Inc.6,593$1.15M0.16%+6,593New
VestGen Advisors, LLC6,524$1.14M0.05%+6,524New
Wasatch Advisors Inc6,443$1.13M0.01%+666+11.5%Added
Sanctuary Advisors, LLC6,327$1.11M0.01%−2,963−31.9%Reduced
Squarepoint Ops LLC6,261$1.10M0.00%+6,261New
SkyView Investment Advisors, LLC6,208$1.09M0.16%+360+6.2%Added
First Trust Advisors LP6,132$1.07M0.00%+4,833+372.1%Added
Bayesian Capital Management, LP6,100$1.07M0.18%+6,100New
Washington Trust Advisors, Inc.6,048$1.06M0.09%−110−1.8%Reduced
RSM US Wealth Management LLC6,007$1.05M0.02%−129−2.1%Reduced
Resources Investment Advisors, LLC.5,885$1.03M0.01%−1,243−17.4%Reduced
Connable Office Inc5,845$1.02M0.11%−324−5.3%Reduced
Edgestream Partners, L.P.5,744$1.01M0.03%+646+12.7%Added
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main5,631$985.4K0.00%−10,296−64.6%Reduced
First National Advisers, LLC5,598$979.6K0.16%+5,598New
Stephens Inc5,351$936.4K0.01%−652−10.9%Reduced
Ossiam5,300$927.4K0.01%−324−5.8%Reduced
Tributary Capital Management, LLC5,279$923.8K0.08%+1,329+33.6%Added
Bangor Savings Bank5,274$922.9K0.09%−286−5.1%Reduced
Vestmark Advisory Solutions, Inc.5,271$922.4K0.02%+2,976+129.7%Added
Tealwood Asset Management Inc5,260$920.0K0.43%−61−1.1%Reduced
Oppenheimer & Co Inc5,224$914.1K0.01%+88+1.7%Added
Redmond Asset Management, LLC5,190$908.2K0.23%−59−1.1%Reduced
Whittier Trust Co5,172$905.0K0.01%+436+9.2%Added
Envestnet Portfolio Solutions, Inc.5,077$888.4K0.00%−9,148−64.3%Reduced
Creative Planning5,065$886.3K0.00%−3,069−37.7%Reduced
Personal Cfo Solutions, LLC5,014$877.4K0.18%−378−7.0%Reduced
Brave Warrior Advisors, LLC5,000$875.0K0.02%+2,000+66.7%Added
Burney Co4,801$840.0K0.03%−6,879−58.9%Reduced
Centiva Capital, LP4,622$808.8K0.05%+4,622New
Scientech Research LLC4,403$770.5K0.20%+4,403New
Rhumbline Advisers4,317$755.4K0.00%+95+2.3%Added
Maverick Capital LtdSuperinvestorMaverick Capital4,301$752.6K0.01%+2,343+119.7%Added
Cullen Investment Group, Ltd.4,137$723.9K0.11%−843−16.9%Reduced
Toroso Investments, LLC4,118$720.6K0.01%+291+7.6%Added
Fox Run Management, L.L.C.4,005$700.8K0.11%+2,853+247.7%Added
Sectoral Asset Management Inc4,000$700.0K0.54%+4,000New
Eqis Capital Management, Inc.3,981$696.7K0.06%+461+13.1%Added
Transatlantique Private Wealth LLC3,906$683.5K0.27%−2,808−41.8%Reduced
Confluence Investment Management LLC3,900$682.5K0.01%+71+1.9%Added
Robeco Institutional Asset Management B.V.3,898$682.1K0.00%+404+11.6%Added
Thoroughbred Financial Services, LLC3,894$681.0K0.04%+3,894New
Commonwealth Equity Services, LLC3,883$679.0K0.00%+5+0.1%Added
Federated Hermes, Inc.3,840$672.0K0.00%00.0%Unchanged