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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, Q2 2026

Institutional positions in Icon PLC as of Jun 30, 2026. 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
423
+7 vs. Q1 2026
Shares held
80.3M
+2.20M (+2.8%) vs. Q1 2026
Total value
$13.9B
+$5.13B (+58.7%) vs. Q1 2026
New holders
87
147 more added
Sold out
80
138 more reduced

4 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2026: 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 holdersQ2 2026: 423 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 heldQ2 2026: $13.9B
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, Q2 2026

Shares, value and share of portfolio for each institution holding Icon PLC; share changes are against Q1 2026.

Institutions holding ICLR in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Huntington National Bank3,856$669.8K0.00%−170−4.2%Reduced
Creative Planning4,023$698.8K0.00%+525+15.0%Added
Colony Group, LLC4,410$766.2K0.00%−286−6.1%Reduced
Henshaw Capital LLC4,500$781.7K0.03%−234−4.9%Reduced
Renaissance Technologies LLC4,500$781.7K0.00%+4,500New
Annis Gardner Whiting Capital Advisors, LLC4,583$796.1K0.12%+978+27.1%Added
Commonwealth Equity Services, LLC4,634$805.0K0.00%+1,434+44.8%Added
Washington Trust Advisors, Inc.4,810$835.5K0.06%−505−9.5%Reduced
Barclays PLC4,820$837.3K0.00%−39,990−89.2%Reduced
Balyasny Asset Management LLC4,859$844.1K0.00%−131,557−96.4%Reduced
CIBC Asset Management Inc4,929$856.2K0.00%+2,630+114.4%Added
Pavaki Capital Management LLC5,000$868.5K0.49%00.0%Unchanged
CSM Advisors, LLC5,188$901.0K0.02%+531+11.4%Added
Rockefeller Capital Management L.P.5,232$908.9K0.00%+1,760+50.7%Added
Legacy Capital Wealth Partners, LLC5,241$910.4K0.17%−1,122−17.6%Reduced
Brighton Jones LLC5,270$915.5K0.02%+20+0.4%Added
Sterling Capital Management LLC5,329$925.7K0.02%+137+2.6%Added
Capital Group Investment Management Pte. Ltd.5,332$926.2K0.14%00.0%Unchanged
Westover Capital Advisors, LLC5,381$934.6K0.16%−1,247−18.8%Reduced
Aso Group Ltd5,482$952.0K0.40%00.0%Unchanged
Federation des caisses Desjardins du Quebec5,548$963.7K0.00%+145+2.7%Added
Monticello Wealth Management, LLC5,744$997.8K0.06%00.0%Unchanged
Truffle Hound Capital, LLC6,000$1.04M0.66%−18,000−75.0%Reduced
Thornburg Investment Management Inc6,010$1.04M0.01%00.0%Unchanged
HighTower Advisors, LLC6,284$1.09M0.00%+2,008+47.0%Added
Highland Capital Management, LLC6,718$1.17M0.05%00.0%Unchanged
Tributary Capital Management, LLC6,752$1.17M0.10%+925+15.9%Added
Ossiam6,984$1.21M0.02%−1,137−14.0%Reduced
Nicholas Hoffman & Company, LLC.7,167$1.24M0.03%−1,787−20.0%Reduced
BNP Paribas Arbitrage, SA7,788$1.35M0.00%−10,439−57.3%Reduced
Concentric Capital Strategies, LP8,126$1.41M0.09%+8,126New
Cambridge Investment Research Advisors, Inc.8,311$1.44M0.00%+1,635+24.5%Added
NewEdge Wealth, LLC8,345$1.45M0.01%+307+3.8%Added
Atria Investments LLC8,636$1.50M0.02%+1,190+16.0%Added
Welch & Forbes LLC8,655$1.50M0.02%+50+0.6%Added
Sanctuary Advisors, LLC8,726$1.52M0.01%−324−3.6%Reduced
Fox Run Management, L.L.C.8,750$1.52M0.25%+8,750New
Oppenheimer Asset Management Inc.8,790$1.53M0.02%+215+2.5%Added
Blair William & Co9,048$1.57M0.00%+251+2.9%Added
Truist Financial Corp9,149$1.59M0.00%−3,186−25.8%Reduced
Motco9,353$1.62M0.14%+2,460+35.7%Added
Rothschild Investment LLC9,811$1.70M0.06%−74−0.7%Reduced
Storgate, LLC10,042$1.74M0.36%+6,834+213.0%Added
Stephens Inc10,126$1.76M0.02%−421−4.0%Reduced
Citigroup Inc10,344$1.80M0.00%−10,314−49.9%Reduced
Farther Finance Advisors, LLC10,374$1.80M0.01%+10,073+3,346.5%Added
Boothbay Fund Management, LLC10,402$1.81M0.03%+10,402New
Polianta Ltd10,800$1.88M0.23%+10,800New
Brown Brothers Harriman & Co10,806$1.88M0.01%+9,503+729.3%Added
Daiwa Securities Group Inc.11,055$1.92M0.00%−1,105−9.1%Reduced
Foyston, Gordon, & Payne Inc11,484$1.99M0.43%−3,051−21.0%Reduced
Assetmark, Inc11,579$2.01M0.00%+2,744+31.1%Added
US Bancorp11,617$2.02M0.00%+2,664+29.8%Added
Banque Pictet & Cie SA12,018$2.09M0.02%−1,220−9.2%Reduced
Susquehanna International Group, LLP12,084$2.10M0.00%+4,053+50.5%Added
VELA Investment Management, LLC12,192$2.12M0.52%+10,198+511.4%Added
Capital International Inc12,283$2.13M0.01%−1,380−10.1%Reduced
Wiley Bros.-Aintree Capital, LLC12,980$2.25M0.01%−297−2.2%Reduced
Manufacturers Life Insurance Company, The13,164$2.29M0.00%−137,630−91.3%Reduced
Thor Investment Management Inc13,272$2.31M1.31%+855+6.9%Added
Banque de Luxembourg S.A.13,280$2.31M1.09%+93+0.7%Added
First National Bank of Omaha13,528$2.35M0.07%−14,842−52.3%Reduced
Quadrature Capital Ltd13,531$2.35M0.02%+13,531New
Cetera Investment Advisers13,855$2.41M0.00%−1,004−6.8%Reduced
Grandeur Peak Global Advisors, LLC13,910$2.42M0.56%−57−0.4%Reduced
Northern Trust Corp14,279$2.48M0.00%+1,829+14.7%Added
SummitTX Capital, L.P.15,199$2.64M0.07%+15,199New
XTX Topco Ltd15,577$2.71M0.04%+15,577New
Live Oak Private Wealth LLC16,161$2.81M0.35%−4,661−22.4%Reduced
Mackenzie Financial Corp16,454$2.86M0.00%+4,526+37.9%Added
CWM Advisors, LLC17,182$2.98M0.12%−7,801−31.2%Reduced
Vanguard Portfolio Management LLC17,207$2.99M0.00%+171+1.0%Added
Romano Brothers and Company17,939$3.12M0.31%−1,671−8.5%Reduced
Vanguard Asset Management, Ltd18,055$3.14M0.00%+465+2.6%Added
Hotchkis & Wiley Capital Management LLC18,092$3.14M0.01%−20,800−53.5%Reduced
Formula Growth Ltd18,692$3.25M1.14%+11,692+167.0%Added
Moore Capital Management, LP19,382$3.37M0.08%−127,826−86.8%Reduced
Empowered Funds, LLC19,738$3.43M0.02%+17,129+656.5%Added
Apollon Wealth Management, LLC19,819$3.44M0.04%+19,819New
Kennedy Capital Management, Inc.19,993$3.47M0.06%+4,345+27.8%Added
Bank Julius Baer & Co. Ltd, Zurich20,683$3.59M0.01%+2,307+12.6%Added
LPL Financial LLC21,944$3.81M0.00%+1,956+9.8%Added
State of Wyoming22,228$3.86M0.39%+19,146+621.2%Added
Palisade Capital Management LLC23,764$4.13M0.18%−34,386−59.1%Reduced
DnB Asset Management AS23,953$4.16M0.01%−36,909−60.6%Reduced
Stifel Financial Corp24,124$4.19M0.00%+2,525+11.7%Added
Capital International Ltd24,663$4.28M0.14%00.0%Unchanged
Lazard Asset Management LLC25,053$4.35M0.01%+1,981+8.6%Added
Buckhead Capital Management LLC25,373$4.41M1.51%+4,088+19.2%Added
USS Investment Management Ltd25,369$4.41M0.02%+11,354+81.0%Added
Janney Montgomery Scott LLC25,667$4.46M0.01%−10,992−30.0%Reduced
Pathstone Holdings, LLC25,266$4.47M0.01%−908−3.5%Reduced
Tudor Investment Corp Et Al26,270$4.56M0.02%−39,105−59.8%Reduced
SeaBridge Investment Advisors LLC26,986$4.69M0.68%+1,082+4.2%Added
Motley Fool Asset Management LLC27,738$4.82M0.19%−1,200−4.1%Reduced
London Co of Virginia29,145$5.06M0.03%+1,206+4.3%Added
Bank of New York Mellon Corp29,216$5.08M0.00%−2,630−8.3%Reduced
Rice Hall James & Associates, LLC30,294$5.26M0.26%+148+0.5%Added
Captrust Financial Advisors31,508$5.47M0.01%−1,513−4.6%Reduced
National Philanthropic Trust32,396$5.63M0.08%+10,719+49.4%Added