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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 2021

Institutional positions in Icon PLC as of Mar 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
426
No complete 13F data for Q4 2020
Shares held
51.0M
No complete 13F data for Q4 2020
Total value
$10.0B
No complete 13F data for Q4 2020

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 2021: 426 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 2021: $10.0B
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, Q1 2021

Shares, value and share of portfolio for each institution holding Icon PLC.

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.

Institutions holding ICLR in Q1 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Franklin Resources Inc6,649$1.31M0.00%––
Commonwealth of Pennsylvania Public School Empls Retrmt Sys6,394$1.26M0.02%––
Marshall Wace North America L.P.6,285$1.24M0.01%––
Live Oak Private Wealth LLC6,224$1.22M0.30%––
Confluence Investment Management LLC6,190$1.22M0.02%––
Janney Montgomery Scott LLC6,156$1.21M0.01%––
Cubist Systematic Strategies, LLC6,159$1.21M0.02%––
Zurcher Kantonalbank (Zurich Cantonalbank)6,045$1.19M0.01%––
Hayek Kallen Investment Management5,930$1.16M0.52%––
Jane Street Group, LLC5,881$1.16M0.00%––
Cim, LLC5,053$1.14M0.20%––
Wolverine Trading, LLC5,626$1.11M0.02%––
Arden Trust Co5,629$1.10M0.19%––
Glenmede Trust Co NA5,560$1.09M0.01%––
Tower Research Capital LLC (TRC)5,155$1.01M0.02%––
Eagle Global Advisors LLC5,100$1.00M0.07%––
Greenwood Capital Associates LLC5,064$994.0K0.16%––
Quantitative Systematic Strategies LLC4,976$977.0K0.15%––
Bessemer Group Inc4,926$967.0K0.00%––
American Portfolios Advisors4,717$926.3K0.04%––
Cambridge Investment Research Advisors, Inc.4,598$903.0K0.00%––
Stephens Inc4,496$883.0K0.01%––
Sentry Investment Management LLC4,434$871.0K0.24%––
Mitchell Capital Management Co4,390$862.0K0.21%––
BancorpSouth Bank4,144$814.0K0.12%––
Legg Mason Asset Management (Japan) Co., Ltd.4,108$807.0K0.88%––
Kennedy Capital Management, Inc.4,099$805.0K0.02%––
V Wealth Advisors LLC4,065$798.0K0.15%––
Nelson, Van Denburg & Campbell Wealth Management Group, LLC4,051$795.0K0.08%––
Boothbay Fund Management, LLC3,915$769.0K0.04%––
Tectonic Advisors LLC3,870$760.0K0.19%––
Group One Trading, L.P.3,800$746.0K0.02%––
Lingohr & Partner Asset Management GmbH3,800$746.0K1.86%––
TLWM3,744$734.0K0.28%––
Quantbot Technologies LP3,723$731.0K0.07%––
Fayez Sarofim & Co3,590$705.0K0.00%––
Marietta Investment Partners LLC3,561$699.0K0.17%––
Galvin, Gaustad & Stein, LLC3,561$699.0K0.07%––
Financial Counselors Inc3,430$674.0K0.02%––
Paloma Partners Management Co3,333$655.0K0.02%––
Park Avenue Securities LLC3,308$650.0K0.02%––
Fifth Third Bancorp3,191$627.0K0.00%––
Grandeur Peak Global Advisors, LLC3,090$607.0K0.03%––
Advisory Services Network, LLC3,082$604.0K0.02%––
Prudential Financial Inc3,054$600.0K0.00%––
Intercontinental Wealth Advisors, LLC3,050$599.0K0.13%––
Capital Asset Advisory Services LLC3,013$592.0K0.09%––
MAI Capital Management2,999$589.0K0.01%––
Raymond James Trust N.A.2,954$580.0K0.02%––
Connable Office Inc2,938$577.0K0.08%––
Baker Tilly Wealth Management, LLC2,940$577.0K0.12%––
Old National Bancorp2,918$573.0K0.02%––
Private Trust Co NA2,846$558.0K0.09%––
Capula Management Ltd2,800$550.0K0.11%––
Ninety One SA (PTY) Ltd2,747$539.0K0.20%––
Groesbeck Investment Management Corp2,725$535.0K0.77%––
Kestra Advisory Services, LLC2,712$533.0K0.01%––
Robeco Institutional Asset Management B.V.2,713$532.0K0.00%––
Vident Investment Advisory, LLC2,662$523.0K0.02%––
Personal Cfo Solutions, LLC2,628$516.0K0.11%––
Dalton Greiner Hartman Maher & Co2,612$513.0K0.41%––
GW Henssler & Associates Ltd2,610$513.0K0.04%––
Harvest Management LLC2,590$509.0K0.37%––
Castleark Management LLC2,560$503.0K0.02%––
Criteria Caixa, S.A.U.2,514$493.7K0.08%––
Monarch Partners Asset Management LLC2,473$486.0K0.07%––
We Are One Seven, LLC6,636$483.0K0.08%––
Banque Cantonale Vaudoise2,408$473.0K0.02%––
Blair William & Co2,396$471.0K0.00%––
Reilly Financial Advisors, LLC2,377$467.0K0.04%––
Henshaw Capital LLC2,290$449.7K0.03%––
Cetera Advisor Networks LLC2,270$446.0K0.01%––
Somerset Trust Co2,237$439.0K0.19%––
Archer Investment Corp2,200$432.0K0.18%––
Legacy Wealth Asset Management, LLC2,201$432.0K0.20%––
RBA Wealth Management, LLC2,181$428.3K0.36%––
Covenant Partners, LLC2,159$424.0K0.17%––
BNP Paribas Arbitrage, SA2,104$413.2K0.00%––
Thrivent Financial for Lutherans2,073$407.0K0.00%––
Barclays PLC2,014$396.0K0.00%––
Clifford Swan Investment Counsel LLC1,960$385.0K0.02%––
Nkcfo LLC1,950$383.0K0.14%––
Private Advisor Group, LLC1,914$376.0K0.00%––
Wealth Alliance1,896$372.0K0.10%––
Geneos Wealth Management Inc.1,670$362.0K0.01%––
Zeke Capital Advisors, LLC1,724$339.0K0.02%––
Icon Wealth Partners, LLC1,706$335.0K0.04%––
Commonwealth Equity Services, LLC1,705$334.0K0.00%––
Altium Wealth Management LLC1,651$324.0K0.03%––
Sigma Planning Corp1,646$323.0K0.01%––
Advisor Partners LLC1,562$307.0K0.02%––
First Mercantile Trust Co1,535$301.0K0.03%––
Trexquant Investment LP1,532$301.0K0.03%––
Coldstream Capital Management Inc1,517$298.0K0.02%––
HRT Financial LP1,495$293.0K0.00%––
Amica Retiree Medical Trust1,477$290.0K0.20%––
Northwestern Mutual Wealth Management Co1,425$280.0K0.00%––
Advisor OS, LLC1,407$278.0K0.06%––
First Hawaiian Bank1,393$274.0K0.01%––
Ameritas Investment Company, LLC1,379$270.8K0.02%––