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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
Legg Mason Asset Management (Japan) Co., Ltd.4,108$807.0K0.88%––
BancorpSouth Bank4,144$814.0K0.12%––
Mitchell Capital Management Co4,390$862.0K0.21%––
Sentry Investment Management LLC4,434$871.0K0.24%––
Stephens Inc4,496$883.0K0.01%––
Cambridge Investment Research Advisors, Inc.4,598$903.0K0.00%––
American Portfolios Advisors4,717$926.3K0.04%––
Bessemer Group Inc4,926$967.0K0.00%––
Quantitative Systematic Strategies LLC4,976$977.0K0.15%––
Greenwood Capital Associates LLC5,064$994.0K0.16%––
Eagle Global Advisors LLC5,100$1.00M0.07%––
Tower Research Capital LLC (TRC)5,155$1.01M0.02%––
Glenmede Trust Co NA5,560$1.09M0.01%––
Arden Trust Co5,629$1.10M0.19%––
Wolverine Trading, LLC5,626$1.11M0.02%––
Cim, LLC5,053$1.14M0.20%––
Jane Street Group, LLC5,881$1.16M0.00%––
Hayek Kallen Investment Management5,930$1.16M0.52%––
Zurcher Kantonalbank (Zurich Cantonalbank)6,045$1.19M0.01%––
Janney Montgomery Scott LLC6,156$1.21M0.01%––
Cubist Systematic Strategies, LLC6,159$1.21M0.02%––
Confluence Investment Management LLC6,190$1.22M0.02%––
Live Oak Private Wealth LLC6,224$1.22M0.30%––
Marshall Wace North America L.P.6,285$1.24M0.01%––
Commonwealth of Pennsylvania Public School Empls Retrmt Sys6,394$1.26M0.02%––
Franklin Resources Inc6,649$1.31M0.00%––
American National Insurance Co6,700$1.32M0.05%––
Moody National Bank Trust Division6,700$1.32M0.03%––
First National Bank of Omaha6,910$1.36M0.07%––
Mount Yale Investment Advisors, LLC7,013$1.38M0.18%––
Washington Trust Co7,080$1.39M0.04%––
DAGCO, Inc.7,086$1.39M0.69%––
Brown Advisory Securities, LLC7,200$1.41M0.24%––
Utah Retirement Systems7,257$1.43M0.02%––
Tudor Investment Corp Et Al7,390$1.45M0.03%––
Man Group plc7,531$1.48M0.01%––
Atria Investments LLC7,544$1.48M0.03%––
AMP Capital Investors Ltd7,565$1.49M0.01%––
Pettee Investors, Inc.7,701$1.51M0.73%––
Bangor Savings Bank7,722$1.52M0.18%––
Mackenzie Financial Corp7,952$1.56M0.00%––
Tealwood Asset Management Inc8,054$1.58M0.63%––
TownSquare Capital, LLC8,325$1.64M0.06%––
Eaton Vance Management8,405$1.65M0.00%––
Wesbanco Bank Inc8,632$1.70M0.07%––
The PNC Financial Services Group, Inc.8,638$1.70M0.00%––
Fort, L.P.8,656$1.70M0.48%––
Diversified Trust Co8,765$1.72M0.07%––
Creative Planning8,765$1.72M0.00%––
Hancock Whitney Corp9,546$1.88M0.06%––
Cna Financial Corp9,921$1.95M0.60%––
TD Private Client Wealth LLC10,434$2.05M0.10%––
MML Investors Services, LLC11,148$2.19M0.02%––
Federation des caisses Desjardins du Quebec11,227$2.21M0.02%––
Seascape Capital Management11,543$2.27M1.26%––
Union Bancaire Privee Asset Management LLC11,583$2.27M1.20%––
Charles Schwab Investment Management Inc12,407$2.44M0.00%––
Colony Group LLC13,351$2.62M0.06%––
Amica Mutual Insurance Co13,789$2.71M0.31%––
HighTower Advisors, LLC14,057$2.77M0.01%––
Arabesque Asset Management Ltd14,293$2.81M1.24%––
Northwest & Ethical Investments L.P.14,564$2.86M0.10%––
Shanda Asset Management Holdings Ltd14,826$2.91M0.51%––
FDx Advisors, Inc.14,849$2.92M0.11%––
Equitable Trust Co15,313$3.01M0.22%––
Fisher Asset Management, LLC15,527$3.05M0.00%––
Burney Co15,549$3.05M0.15%––
US Bancorp15,834$3.11M0.01%––
Deutsche Bank AG15,851$3.11M0.00%––
UBS Group AG16,369$3.21M0.00%––
First Trust Advisors LP16,542$3.25M0.00%––
Advisor Group Holdings, Inc.16,819$3.31M0.01%––
PEAK6 Investments LLC17,146$3.37M0.09%––
Eqis Capital Management, Inc.18,066$3.55M0.28%––
Chartwell Investment Partners, LLC18,311$3.60M0.11%––
Credit Suisse AG18,442$3.62M0.00%––
Magnetar Financial LLC18,500$3.63M0.03%––
Azimuth Capital Management LLC18,529$3.64M0.17%––
UBS Asset Management Americas Inc18,665$3.67M0.00%––
Fundsmith Long/Short Master Fund18,700$3.67M3.03%––
DnB Asset Management AS18,809$3.69M0.03%––
Handelsbanken Fonder AB19,330$3.80M0.02%––
Welch & Forbes LLC19,965$3.92M0.07%––
Mirabella Financial Services LLP20,079$3.94M1.23%––
Amundi Asset Management US, Inc.20,231$3.97M0.00%––
Oppenheimer Asset Management Inc.20,919$4.11M0.06%––
Meritage Portfolio Management21,624$4.25M0.28%––
Credit Agricole S A21,731$4.27M0.16%––
Caption Management, LLC22,500$4.42M0.57%––
Nomura Holdings Inc22,500$4.42M0.03%––
Susquehanna Fundamental Investments, LLC22,678$4.45M0.08%––
Omni Partners LLP22,735$4.46M0.22%––
Knights of Columbus Asset Advisors LLC22,768$4.47M0.44%––
DekaBank Deutsche Girozentrale23,357$4.58M0.02%––
Tekla Capital Management LLC23,592$4.63M0.16%––
LMR Partners LLP23,905$4.69M0.12%––
Westover Capital Advisors, LLC24,075$4.73M1.63%––
M&T Bank Corp25,156$4.94M0.02%––
Captrust Financial Advisors25,276$4.96M0.05%––
Brinker Capital Investments, LLC25,784$5.06M0.08%––