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.
| 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 2025
Shares, value and share of portfolio for each institution holding Icon PLC; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| WCM Investment Management, LLC | 6,389,671 | $1.14B | 2.94% | +54,781+0.9% | Added |
| Artisan Partners Limited Partnership | 4,290,924 | $750.9M | 1.22% | +4,095,633+2,097.2% | Added |
| Wellington Management Group LLP | 3,693,159 | $646.3M | 0.12% | +1,579,915+74.8% | Added |
| Massachusetts Financial Services Co | 3,101,629 | $542.8M | 0.18% | −100,132−3.1% | Reduced |
| Invesco Ltd. | 2,987,961 | $522.9M | 0.10% | +1,094,613+57.8% | Added |
| Ninety One UK Ltd | 2,918,187 | $510.7M | 1.42% | −28,766−1.0% | Reduced |
| Franklin Resources Inc | 2,100,035 | $367.5M | 0.11% | −71,159−3.3% | Reduced |
| FMR LLC | 1,892,787 | $331.2M | 0.02% | +565,174+42.6% | Added |
| Alliancebernstein L.P. | 1,860,907 | $325.6M | 0.12% | +39,457+2.2% | Added |
| Clearbridge Investments, LLC | 1,844,458 | $322.8M | 0.28% | −207,519−10.1% | Reduced |
| Price T Rowe Associates Inc | 1,710,225 | $299.3M | 0.04% | −1,223,335−41.7% | Reduced |
| D. E. Shaw & Co., Inc. | 1,661,736 | $290.8M | 0.35% | +545,531+48.9% | Added |
| Sustainable Growth Advisers, LP | 1,511,838 | $264.6M | 1.48% | −81,881−5.1% | Reduced |
| Janus Henderson Group PLC | 1,437,960 | $257.5M | 0.14% | −48,086−3.2% | Reduced |
| Ruane, Cunniff & Goldfarb L.P. | 1,254,350 | $219.5M | 3.99% | −11,190−0.9% | Reduced |
| Comgest Global Investors S.A.S. | 1,189,086 | $208.1M | 3.71% | +16,334+1.4% | Added |
| Norges Bank | 1,042,597 | $182.4M | 0.03% | +36,220+3.6% | Added |
| Lazard Asset Management LLC | 1,008,965 | $176.6M | 0.27% | −825,242−45.0% | Reduced |
| JPMorgan Chase & Co | 974,210 | $170.5M | 0.01% | −98,750−9.2% | Reduced |
| Bank of America Corp | 872,571 | $152.7M | 0.01% | −1,415−0.2% | Reduced |
| Allspring Global Investments Holdings, LLC | 897,646 | $149.5M | 0.26% | +160,132+21.7% | Added |
| Trinity Street Asset Management LLP | 833,819 | $145.9M | 14.77% | −5,946−0.7% | Reduced |
| Neuberger Berman Group LLC | 761,699 | $133.3M | 0.11% | +2,124+0.3% | Added |
| Citadel Advisors LLC | 705,320 | $123.4M | 0.12% | +133,715+23.4% | Added |
| Bamco Inc | 704,485 | $123.3M | 0.36% | −29,682−4.0% | Reduced |
| CCLA Investment Management Ltd | 659,912 | $115.4M | 2.04% | +12,983+2.0% | Added |
| FIL Ltd | 659,274 | $115.4M | 0.11% | −176,043−21.1% | Reduced |
| Polen Capital Management LLC | 635,052 | $111.1M | 0.35% | −76,458−10.7% | Reduced |
| Morgan Stanley | 626,152 | $109.6M | 0.01% | −235,484−27.3% | Reduced |
| Boston Partners | 604,919 | $105.8M | 0.13% | −26,643−4.2% | Reduced |
| Earnest Partners LLC | 576,173 | $100.8M | 0.48% | +23,150+4.2% | Added |
| Mawer Investment Management Ltd. | 576,071 | $100.8M | 0.49% | −25,132−4.2% | Reduced |
| USS Investment Management Ltd | 569,635 | $99.7M | 0.76% | +740.0% | Added |
| Wgi DM, LLC | 547,542 | $95.8M | 6.74% | +547,542 | New |
| First Pacific Advisors, LP | 546,947 | $95.7M | 1.53% | +95,190+21.1% | Added |
| Fisher Funds Management LTD | 516,666 | $90.4M | 2.19% | −53,020−9.3% | Reduced |
| SEI Investments Co | 493,136 | $86.3M | 0.11% | +199,409+67.9% | Added |
| American Century Companies Inc | 477,937 | $83.6M | 0.05% | +147,222+44.5% | Added |
| Manufacturers Life Insurance Company, The | 464,837 | $81.3M | 0.08% | −19,105−3.9% | Reduced |
| Dimensional Fund Advisors LP | 457,860 | $80.1M | 0.02% | +23,910+5.5% | Added |
| Northern Trust Corp | 446,020 | $78.0M | 0.01% | +16,921+3.9% | Added |
| Fiduciary Management Inc | 433,425 | $75.8M | 0.73% | −10,675−2.4% | Reduced |
| Stephens Investment Management Group LLC | 428,824 | $75.0M | 1.08% | +7,754+1.8% | Added |
| Goldman Sachs Group Inc | 410,891 | $71.9M | 0.01% | −106,606−20.6% | Reduced |
| Baupost Group LLCSuperinvestorBaupost Group | 405,000 | $70.9M | 2.03% | +405,000 | New |
| Oddo BHF Asset Management SAS | 395,559 | $69.2M | 2.84% | −134,727−25.4% | Reduced |
| Fayez Sarofim & Co | 385,636 | $68.8M | 0.17% | −44,344−10.3% | Reduced |
| UBS Group AG | 380,088 | $66.5M | 0.01% | −3,950−1.0% | Reduced |
| Envestnet Asset Management Inc | 372,044 | $65.1M | 0.02% | −58,188−13.5% | Reduced |
| Westfield Capital Management Co LP | 361,912 | $63.3M | 0.31% | −241,087−40.0% | Reduced |
| Ninety One North America, Inc. | 355,906 | $62.3M | 4.19% | +48,533+15.8% | Added |
| State Street Corp | 355,775 | $62.3M | 0.00% | +14,997+4.4% | Added |
| Voloridge Investment Management, LLC | 345,266 | $60.4M | 0.22% | −175,470−33.7% | Reduced |
| Principal Financial Group Inc | 302,148 | $52.9M | 0.03% | −321,041−51.5% | Reduced |
| Southpoint Capital Advisors LP | 300,000 | $52.5M | 1.27% | +300,000 | New |
| BlackRock, Inc. | 299,239 | $52.4M | 0.00% | +37,484+14.3% | Added |
| Qube Research & Technologies Ltd | 282,600 | $49.5M | 0.08% | +27,300+10.7% | Added |
| Two Creeks Capital Management, LP | 276,531 | $48.4M | 3.09% | −21,107−7.1% | Reduced |
| Legal & General Group Plc | 276,005 | $48.3M | 0.01% | −3,486−1.2% | Reduced |
| Diamond Hill Capital Management Inc | 265,866 | $46.5M | 0.21% | +38,480+16.9% | Added |
| Brown Brothers Harriman & Co | 265,151 | $46.4M | 0.32% | +49,770+23.1% | Added |
| Holocene Advisors, LP | 241,924 | $42.3M | 0.12% | +193,978+404.6% | Added |
| Ameriprise Financial Inc | 240,676 | $42.1M | 0.01% | −10,754−4.3% | Reduced |
| Pertento Partners LLP | 239,048 | $41.8M | 5.00% | 00.0% | Unchanged |
| Grandeur Peak Global Advisors, LLC | 239,042 | $41.8M | 4.64% | +93,718+64.5% | Added |
| Alyeska Investment Group, L.P. | 227,096 | $39.7M | 0.16% | +227,096 | New |
| Employees Retirement System of Texas | 223,200 | $39.1M | 0.35% | −2,600−1.2% | Reduced |
| Vanguard Group Inc | 214,803 | $37.6M | 0.00% | +4,265+2.0% | Added |
| Eagle Health Investments LP | 209,190 | $36.6M | 9.51% | 00.0% | Unchanged |
| CIBC Private Wealth Group, LLC | 252,835 | $36.0M | 0.08% | +12,687+5.3% | Added |
| Sio Capital Management, LLC | 203,311 | $35.6M | 10.77% | +7,811+4.0% | Added |
| BNP Paribas Arbitrage, SA | 197,151 | $34.5M | 0.03% | +33,486+20.5% | Added |
| Twinbeech Capital LP | 185,707 | $32.5M | 0.59% | +185,707 | New |
| Wells Fargo & Company | 184,831 | $32.3M | 0.01% | −28,813−13.5% | Reduced |
| Brown Capital Management LLC | 182,045 | $31.9M | 0.96% | +2,434+1.4% | Added |
| HGK Asset Management Inc | 181,565 | $31.8M | 6.46% | −2,429−1.3% | Reduced |
| Renaissance Technologies LLC | 178,924 | $31.3M | 0.05% | +53,125+42.2% | Added |
| Canoe Financial LP | 175,677 | $30.7M | 0.49% | +31,730+22.0% | Added |
| Macquarie Group Ltd | 171,761 | $30.1M | 0.04% | +14,386+9.1% | Added |
| 1832 Asset Management L.P. | 167,378 | $29.3M | 0.06% | +22,149+15.3% | Added |
| Canada Pension Plan Investment Board | 165,610 | $29.0M | 0.03% | −22,795−12.1% | Reduced |
| State of Tennessee, Treasury Department | 163,327 | $28.6M | 0.11% | +4,380+2.8% | Added |
| Cubist Systematic Strategies, LLC | 162,441 | $28.4M | 0.37% | +142,574+717.6% | Added |
| J. Goldman & Co LP | 161,875 | $28.3M | 1.00% | +160,803+15,000.3% | Added |
| Russell Investments Group, Ltd. | 158,956 | $27.8M | 0.04% | +134,378+546.7% | Added |
| Raymond James Financial Inc | 148,507 | $26.0M | 0.01% | −22,305−13.1% | Reduced |
| California Public Employees Retirement System | 147,955 | $25.9M | 0.02% | −4,642−3.0% | Reduced |
| Pensioenfonds Rail & Ov | 141,761 | $24.8M | 1.72% | −11,013−7.2% | Reduced |
| Renaissance Group LLC | 138,032 | $24.2M | 1.07% | +21,660+18.6% | Added |
| Brandywine Global Investment Management, LLC | 134,394 | $23.7M | 0.17% | +134,394 | New |
| Clarkston Capital Partners, LLC | 133,465 | $23.4M | 0.46% | +33,410+33.4% | Added |
| Natixis Advisors, L.P. | 130,510 | $22.8M | 0.04% | −47,251−26.6% | Reduced |
| Zuckerman Investment Group, LLC | 129,863 | $22.7M | 2.44% | +37,723+40.9% | Added |
| Amundi | 131,398 | $21.5M | 0.01% | −2,156−1.6% | Reduced |
| Millennium Management LLC | 115,439 | $20.2M | 0.02% | −110,193−48.8% | Reduced |
| Capital Research Global Investors | 107,915 | $18.9M | 0.00% | −1,040,452−90.6% | Reduced |
| Sunriver Management LLC | 106,136 | $18.6M | 2.29% | −79,723−42.9% | Reduced |
| Walter Public Investments Inc. | 102,397 | $17.9M | 3.34% | +5,443+5.6% | Added |
| Armistice Capital, LLC | 100,052 | $17.5M | 0.47% | −318,060−76.1% | Reduced |
| Kornitzer Capital Management Inc | 99,627 | $17.4M | 0.36% | +2,525+2.6% | Added |