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 2026
Institutional positions in Icon PLC as of Mar 31, 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
- 420
- −79 vs. Q4 2025
- Shares held
- 78.1M
- +2.41M (+3.2%) vs. Q4 2025
- Total value
- $8.74B
- −$5.07B (−36.7%) vs. Q4 2025
- New holders
- 67
- 156 more added
- Sold out
- 146
- 140 more reduced
15 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 423 | $13.9B |
| Q1 2026 | 420 | $8.74B |
| Q4 2025 | 514 | $14.1B |
| Q3 2025 | 513 | $13.0B |
| Q2 2025 | 489 | $11.2B |
| Q1 2025 | 562 | $13.3B |
| Q4 2024 | 596 | $16.0B |
| Q3 2024 | 662 | $22.4B |
| Q2 2024 | 676 | $24.3B |
| Q1 2024 | 648 | $26.1B |
| Q4 2023 | 603 | $22.1B |
| Q3 2023 | 556 | $19.7B |
| Q2 2023 | 534 | $19.9B |
| Q1 2023 | 538 | $16.1B |
| Q4 2022 | 531 | $14.5B |
| Q3 2022 | 488 | $13.9B |
| Q2 2022 | 510 | $16.2B |
| Q1 2022 | 512 | $17.8B |
| Q4 2021 | 548 | $22.7B |
| Q3 2021 | 510 | $19.3B |
| Q2 2021 | 449 | $12.3B |
| Q1 2021 | 426 | $10.0B |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Icon PLC; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| First Pacific Advisors, LP | 991,075 | $109.7M | 1.54% | +10,271+1.0% | Added |
| Equity Investment Corp | 1,096,395 | $121.3M | 2.38% | +473,207+75.9% | Added |
| Capital World Investors | 1,104,831 | $122.3M | 0.02% | −391,648−26.2% | Reduced |
| 1832 Asset Management L.P. | 1,193,240 | $132.0M | 0.17% | −11,087−0.9% | Reduced |
| D. E. Shaw & Co., Inc. | 1,198,555 | $132.6M | 0.10% | +545,236+83.5% | Added |
| Trinity Street Asset Management LLP | 1,208,148 | $133.7M | 9.17% | +135,720+12.7% | Added |
| Madison Avenue Partners, LP | 1,282,838 | $142.0M | 6.17% | +1,282,838 | New |
| Brandes Investment Partners, LP | 1,435,053 | $158.8M | 1.12% | +658,321+84.8% | Added |
| Ruane, Cunniff & Goldfarb L.P. | 1,634,611 | $180.9M | 3.00% | −44,979−2.7% | Reduced |
| Greenhaven Associates IncSuperinvestorGreenhaven Associates | 2,002,411 | $221.6M | 3.65% | +1,985,017+11,412.1% | Added |
| Sachem Head Capital Management LP | 2,105,000 | $232.9M | 5.61% | +2,105,000 | New |
| Alliancebernstein L.P. | 1,344,595 | $245.0M | 0.08% | +72,133+5.7% | Added |
| Massachusetts Financial Services Co | 2,727,824 | $304.9M | 0.10% | +370,791+15.7% | Added |
| Brave Warrior Advisors, LLC | 2,996,811 | $331.6M | 8.21% | +2,996,811 | New |
| Principal Financial Group Inc | 3,311,771 | $366.5M | 0.20% | +310,236+10.3% | Added |
| Invesco Ltd. | 3,878,869 | $429.2M | 0.04% | +121,973+3.2% | Added |
| FMR LLC | 4,174,006 | $461.9M | 0.02% | +1,076,111+34.7% | Added |
| Harris Associates L PSuperinvestorHarris Associates (Oakmark) | 4,351,317 | $481.5M | 0.64% | +1,841,151+73.3% | Added |
| Wellington Management Group LLP | 5,913,037 | $654.3M | 0.12% | +1,562,287+35.9% | Added |
| Artisan Partners Limited Partnership | 8,278,945 | $916.1M | 1.49% | +1,404,968+20.4% | Added |
| Orbis Allan Gray Ltd | 0 | $0 | 0.00% | −4,214,661−100.0% | Sold out |
| Ninety One UK Ltd | 0 | $0 | 0.00% | −2,945,810−100.0% | Sold out |
| Wgi DM, LLC | 0 | $0 | 0.00% | −1,396,009−100.0% | Sold out |
| American Century Companies Inc | 0 | $0 | 0.00% | −1,038,013−100.0% | Sold out |
| Jennison Associates LLC | 0 | $0 | 0.00% | −677,981−100.0% | Sold out |
| Clearbridge Investments, LLC | 0 | $0 | 0.00% | −616,991−100.0% | Sold out |
| Altrinsic Global Advisors LLC | 0 | $0 | 0.00% | −507,824−100.0% | Sold out |
| Fiduciary Management Inc | 0 | $0 | 0.00% | −480,996−100.0% | Sold out |
| Ninety One North America, Inc. | 0 | $0 | 0.00% | −455,399−100.0% | Sold out |
| Voya Investment Management LLC | 0 | $0 | 0.00% | −438,319−100.0% | Sold out |
| Samlyn Capital, LLC | 0 | $0 | 0.00% | −337,681−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −289,135−100.0% | Sold out |
| Ilex Capital Partners (UK) LLP | 0 | $0 | 0.00% | −211,898−100.0% | Sold out |
| Canoe Financial LP | 0 | $0 | 0.00% | −193,917−100.0% | Sold out |
| Prosight Management, LP | 0 | $0 | 0.00% | −110,000−100.0% | Sold out |
| Polen Capital Management LLC | 0 | $0 | 0.00% | −105,206−100.0% | Sold out |
| Hound Partners, LLC | 0 | $0 | 0.00% | −75,000−100.0% | Sold out |
| Braidwell LP | 0 | $0 | 0.00% | −73,370−100.0% | Sold out |
| Edmond de Rothschild Holding S.A. | 0 | $0 | 0.00% | −61,332−100.0% | Sold out |
| Kelly Lawrence W & Associates Inc | 0 | $0 | 0.00% | −60,116−100.0% | Sold out |
| DekaBank Deutsche Girozentrale | 0 | $0 | 0.00% | −30,885−100.0% | Sold out |
| Arvin Capital Management LP | 0 | $0 | 0.00% | −50,160−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −48,055−100.0% | Sold out |
| Armor Advisors, L.L.C. | 0 | $0 | 0.00% | −39,868−100.0% | Sold out |
| Ninety One SA (PTY) Ltd | 0 | $0 | 0.00% | −32,751−100.0% | Sold out |
| LVM Capital Management Ltd | 0 | $0 | 0.00% | −32,257−100.0% | Sold out |
| Financiere des Professionnels - Fonds d,investissement inc. | 0 | $0 | 0.00% | −29,343−100.0% | Sold out |
| Trillium Asset Management, LLC | 0 | $0 | 0.00% | −28,085−100.0% | Sold out |
| Strategic Global Advisors, LLC | 0 | $0 | 0.00% | −27,407−100.0% | Sold out |
| Walleye Trading LLC | 0 | $0 | 0.00% | −27,383−100.0% | Sold out |
| Natixis Advisors, L.P. | 0 | $0 | 0.00% | −27,264−100.0% | Sold out |
| Calamos Advisors LLC | 0 | $0 | 0.00% | −26,500−100.0% | Sold out |
| Hunter Perkins Capital Management, LLC | 0 | $0 | 0.00% | −26,285−100.0% | Sold out |
| Kornitzer Capital Management Inc | 0 | $0 | 0.00% | −25,037−100.0% | Sold out |
| Bellevue Group AG | 0 | $0 | 0.00% | −24,560−100.0% | Sold out |
| WCM Investment Management, LLC | 0 | $0 | 0.00% | −24,145−100.0% | Sold out |
| D.A. Davidson & Co. | 0 | $0 | 0.00% | −19,778−100.0% | Sold out |
| Manhattan West Asset Management, LLC | 0 | $0 | 0.00% | −17,939−100.0% | Sold out |
| Exencial Wealth Advisors, LLC | 0 | $0 | 0.00% | −14,699−100.0% | Sold out |
| Employees Retirement System of Texas | 0 | $0 | 0.00% | −11,901−100.0% | Sold out |
| HSBC Holdings PLC | 0 | $0 | 0.00% | −11,028−100.0% | Sold out |
| Hollow Brook Wealth Management LLC | 0 | $0 | 0.00% | −10,983−100.0% | Sold out |
| Macquarie Group Ltd | 0 | $0 | 0.00% | −10,106−100.0% | Sold out |
| Schroder Investment Management Group | 0 | $0 | 0.00% | −9,294−100.0% | Sold out |
| Maridea Wealth Management LLC | 0 | $0 | 0.00% | −9,208−100.0% | Sold out |
| Utah Retirement Systems | 0 | $0 | 0.00% | −8,677−100.0% | Sold out |
| Irenic Capital Management LP | 0 | $0 | 0.00% | −8,000−100.0% | Sold out |
| NEOS Investment Management LLC | 0 | $0 | 0.00% | −7,897−100.0% | Sold out |
| Diversified Trust Co | 0 | $0 | 0.00% | −7,166−100.0% | Sold out |
| Raiffeisen Bank International AG | 0 | $0 | 0.00% | −7,000−100.0% | Sold out |
| Huber Capital Management LLC | 0 | $0 | 0.00% | −6,760−100.0% | Sold out |
| Brant Point Investment Management LLC | 0 | $0 | 0.00% | −6,000−100.0% | Sold out |
| Robeco Schweiz AG | 0 | $0 | 0.00% | −5,582−100.0% | Sold out |
| Verdence Capital Advisors LLC | 0 | $0 | 0.00% | −5,150−100.0% | Sold out |
| Confluence Investment Management LLC | 0 | $0 | 0.00% | −5,022−100.0% | Sold out |
| Tealwood Asset Management Inc | 0 | $0 | 0.00% | −5,001−100.0% | Sold out |
| Redmond Asset Management, LLC | 0 | $0 | 0.00% | −4,931−100.0% | Sold out |
| Benjamin Edwards Inc | 0 | $0 | 0.00% | −4,666−100.0% | Sold out |
| Vestmark Advisory Solutions, Inc. | 0 | $0 | 0.00% | −4,048−100.0% | Sold out |
| M&T Bank Corp | 0 | $0 | 0.00% | −3,805−100.0% | Sold out |
| FIL Ltd | 0 | $0 | 0.00% | −3,576−100.0% | Sold out |
| Annandale Capital, LLC | 0 | $0 | 0.00% | −3,300−100.0% | Sold out |
| Sumitomo Mitsui Trust Holdings, Inc. | 0 | $0 | 0.00% | −3,298−100.0% | Sold out |
| Voloridge Investment Management, LLC | 0 | $0 | 0.00% | −2,961−100.0% | Sold out |
| Gibbs Wealth Management | 0 | $0 | 0.00% | −2,921−100.0% | Sold out |
| Marietta Investment Partners LLC | 0 | $0 | 0.00% | −2,841−100.0% | Sold out |
| Quantinno Capital Management LP | 0 | $0 | 0.00% | −2,754−100.0% | Sold out |
| Mount Yale Investment Advisors, LLC | 0 | $0 | 0.00% | −2,672−100.0% | Sold out |
| Qsemble Capital Management, LP | 0 | $0 | 0.00% | −2,659−100.0% | Sold out |
| Westfield Capital Management Co LP | 0 | $0 | 0.00% | −2,534−100.0% | Sold out |
| Optimize Financial Inc | 0 | $0 | 0.00% | −2,461−100.0% | Sold out |
| Dana Investment Advisors, Inc. | 0 | $0 | 0.00% | −2,301−100.0% | Sold out |
| Two Sigma Securities, LLC | 0 | $0 | 0.00% | −2,224−100.0% | Sold out |
| White Knight Strategic Wealth Advisors, LLC | 0 | $0 | 0.00% | −2,193−100.0% | Sold out |
| Forum Financial Management, LP | 0 | $0 | 0.00% | −2,078−100.0% | Sold out |
| Davenport & Co LLC | 0 | $0 | 0.00% | −2,071−100.0% | Sold out |
| Hilltop Holdings Inc. | 0 | $0 | 0.00% | −1,958−100.0% | Sold out |
| Eagle Harbor Asset Management Inc | 0 | $0 | 0.00% | −1,887−100.0% | Sold out |
| Tectonic Advisors LLC | 0 | $0 | 0.00% | −1,883−100.0% | Sold out |
| Leonteq Securities AG | 0 | $0 | 0.00% | −1,795−100.0% | Sold out |