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 |
|---|---|---|---|---|---|
| Monticello Wealth Management, LLC | 5,744 | $635.6K | 0.04% | +3,314+136.4% | Added |
| Tributary Capital Management, LLC | 5,827 | $644.8K | 0.06% | +59+1.0% | Added |
| First National Advisers, LLC | 5,936 | $656.9K | 0.10% | −1,637−21.6% | Reduced |
| Vise Technologies, Inc. | 3,632 | $661.8K | 0.01% | 00.0% | Unchanged |
| Thornburg Investment Management Inc | 6,010 | $665.1K | 0.01% | −48,163−88.9% | Reduced |
| Legacy Capital Wealth Partners, LLC | 6,363 | $704.1K | 0.15% | +1,148+22.0% | Added |
| SkyView Investment Advisors, LLC | 6,387 | $707.0K | 0.10% | +12+0.2% | Added |
| Westover Capital Advisors, LLC | 6,628 | $733.5K | 0.13% | −811−10.9% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 6,676 | $739.0K | 0.00% | +2,348+54.3% | Added |
| Highland Capital Management, LLC | 6,718 | $743.4K | 0.04% | 00.0% | Unchanged |
| Motco | 6,893 | $762.8K | 0.07% | +3,196+86.4% | Added |
| Formula Growth Ltd | 7,000 | $774.6K | 0.35% | +7,000 | New |
| Atria Investments LLC | 7,446 | $824.0K | 0.01% | +1,191+19.0% | Added |
| Susquehanna International Group, LLP | 8,031 | $888.7K | 0.00% | +8,031 | New |
| NewEdge Wealth, LLC | 8,038 | $889.5K | 0.01% | +3,619+81.9% | Added |
| Ossiam | 8,121 | $898.7K | 0.02% | +3,632+80.9% | Added |
| Oppenheimer Asset Management Inc. | 8,575 | $948.9K | 0.01% | −955−10.0% | Reduced |
| Welch & Forbes LLC | 8,605 | $952.2K | 0.01% | −10,105−54.0% | Reduced |
| Loomis Sayles & Co L P | 8,665 | $958.8K | 0.00% | −58,912−87.2% | Reduced |
| Blair William & Co | 8,797 | $973.5K | 0.00% | −5,949−40.3% | Reduced |
| Assetmark, Inc | 8,835 | $977.7K | 0.00% | +3,938+80.4% | Added |
| US Bancorp | 8,953 | $990.7K | 0.00% | −2,554−22.2% | Reduced |
| Nicholas Hoffman & Company, LLC. | 8,954 | $990.9K | 0.02% | +3,548+65.6% | Added |
| Sanctuary Advisors, LLC | 9,050 | $1.00M | 0.01% | +4,118+83.5% | Added |
| Point72 Asset Management, L.P. | 9,863 | $1.09M | 0.00% | −184,287−94.9% | Reduced |
| Rothschild Investment LLC | 9,885 | $1.09M | 0.06% | 00.0% | Unchanged |
| First Manhattan Co | 10,055 | $1.11M | 0.00% | +10,055 | New |
| Stephens Inc | 10,547 | $1.17M | 0.01% | +5,325+102.0% | Added |
| Numerai GP LLC | 11,196 | $1.24M | 0.12% | +11,196 | New |
| Mackenzie Financial Corp | 11,928 | $1.32M | 0.00% | +8,256+224.8% | Added |
| Daiwa Securities Group Inc. | 12,160 | $1.35M | 0.00% | −22,834−65.3% | Reduced |
| Truist Financial Corp | 12,335 | $1.36M | 0.00% | −12,252−49.8% | Reduced |
| Thor Investment Management Inc | 12,417 | $1.37M | 0.73% | +197+1.6% | Added |
| Northern Trust Corp | 12,450 | $1.38M | 0.00% | −9,257−42.6% | Reduced |
| Handelsbanken Fonder AB | 12,739 | $1.41M | 0.00% | −6,449−33.6% | Reduced |
| Entropy Technologies, LP | 12,816 | $1.42M | 0.07% | +6,546+104.4% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 13,112 | $1.45M | 0.00% | +13,112 | New |
| Banque de Luxembourg S.A. | 13,187 | $1.46M | 0.76% | −3,925−22.9% | Reduced |
| Wiley Bros.-Aintree Capital, LLC | 13,277 | $1.46M | 0.01% | +4,192+46.1% | Added |
| Banque Pictet & Cie SA | 13,238 | $1.46M | 0.02% | −253−1.9% | Reduced |
| TD Asset Management Inc | 13,468 | $1.49M | 0.00% | +1,579+13.3% | Added |
| Capital International Inc | 13,663 | $1.51M | 0.01% | −3,209−19.0% | Reduced |
| Maverick Capital LtdSuperinvestorMaverick Capital | 13,887 | $1.54M | 0.02% | +13,887 | New |
| Grandeur Peak Global Advisors, LLC | 13,967 | $1.55M | 0.36% | +4,694+50.6% | Added |
| USS Investment Management Ltd | 14,015 | $1.55M | 0.01% | +587+4.4% | Added |
| Marshall Wace, LLP | 14,367 | $1.59M | 0.00% | +14,367 | New |
| Foyston, Gordon, & Payne Inc | 14,535 | $1.61M | 0.37% | −11,819−44.8% | Reduced |
| Cetera Investment Advisers | 14,859 | $1.64M | 0.00% | +2,221+17.6% | Added |
| Kerrisdale Advisers, LLC | 15,646 | $1.73M | 0.66% | +15,646 | New |
| Kennedy Capital Management, Inc. | 15,648 | $1.73M | 0.04% | −2,518−13.9% | Reduced |
| Avidity Partners Management LP | 16,000 | $1.77M | 0.36% | −17,100−51.7% | Reduced |
| Heartland Advisors Inc | 16,066 | $1.78M | 0.09% | +8,008+99.4% | Added |
| UBS Asset Management Americas Inc | 16,564 | $1.83M | 0.00% | +3,818+30.0% | Added |
| Vanguard Portfolio Management LLC | 17,036 | $1.89M | 0.00% | +17,036 | New |
| Vanguard Asset Management, Ltd | 17,590 | $1.95M | 0.00% | +17,590 | New |
| Rangeley Capital, LLC | 17,700 | $1.96M | 2.12% | +17,700 | New |
| BNP Paribas Arbitrage, SA | 18,227 | $2.02M | 0.00% | −31,274−63.2% | Reduced |
| Bank Julius Baer & Co. Ltd, Zurich | 18,376 | $2.03M | 0.01% | −120−0.6% | Reduced |
| Skylands Capital, LLC | 19,300 | $2.14M | 0.28% | +13,650+241.6% | Added |
| Fund 1 Investments, LLC | 19,527 | $2.16M | 0.28% | +19,527 | New |
| Romano Brothers and Company | 19,610 | $2.17M | 0.25% | −400−2.0% | Reduced |
| Quantitative Investment Management, LLC | 19,762 | $2.19M | 0.23% | +14,655+287.0% | Added |
| LPL Financial LLC | 19,988 | $2.21M | 0.00% | −4,679−19.0% | Reduced |
| American Financial Group Inc | 20,000 | $2.21M | 0.82% | +20,000 | New |
| Citigroup Inc | 20,658 | $2.29M | 0.00% | +8,220+66.1% | Added |
| Live Oak Private Wealth LLC | 20,822 | $2.30M | 0.32% | +2,007+10.7% | Added |
| Buckhead Capital Management LLC | 21,285 | $2.36M | 0.89% | +4,631+27.8% | Added |
| Stifel Financial Corp | 21,599 | $2.39M | 0.00% | −6,061−21.9% | Reduced |
| National Philanthropic Trust | 21,677 | $2.40M | 0.03% | −155−0.7% | Reduced |
| Heights Point Management, LP | 21,700 | $2.40M | 2.23% | +21,700 | New |
| Militia Capital Management LLC | 22,800 | $2.52M | 0.57% | +22,800 | New |
| Lazard Asset Management LLC | 23,072 | $2.55M | 0.00% | −349,375−93.8% | Reduced |
| Truffle Hound Capital, LLC | 24,000 | $2.66M | 1.63% | +24,000 | New |
| Deutsche Bank AG | 24,342 | $2.69M | 0.00% | −668−2.7% | Reduced |
| Capital International Ltd | 24,663 | $2.73M | 0.10% | −4,583−15.7% | Reduced |
| CWM Advisors, LLC | 24,983 | $2.76M | 0.16% | +11,495+85.2% | Added |
| SeaBridge Investment Advisors LLC | 25,904 | $2.87M | 0.48% | +3,641+16.4% | Added |
| Pathstone Holdings, LLC | 26,174 | $2.90M | 0.01% | +4,910+23.1% | Added |
| Quartz Partners, LLC | 26,620 | $2.95M | 1.14% | +8,516+47.0% | Added |
| London Co of Virginia | 27,939 | $3.09M | 0.02% | +13,501+93.5% | Added |
| First National Bank of Omaha | 28,370 | $3.14M | 0.10% | −7,466−20.8% | Reduced |
| Two Sigma Investments, LP | 28,934 | $3.20M | 0.00% | +34+0.1% | Added |
| Motley Fool Asset Management LLC | 28,938 | $3.20M | 0.14% | −34,404−54.3% | Reduced |
| Circumference Group LLC | 29,000 | $3.21M | 7.19% | +1,000+3.6% | Added |
| Arkadios Wealth Advisors | 29,843 | $3.30M | 0.05% | +13,939+87.6% | Added |
| Rice Hall James & Associates, LLC | 30,146 | $3.34M | 0.19% | +18,175+151.8% | Added |
| Winton Group Ltd | 30,554 | $3.38M | 0.12% | +30,554 | New |
| JPMorgan Chase & Co | 32,994 | $3.47M | 0.00% | −734,930−95.7% | Reduced |
| Bank of New York Mellon Corp | 31,846 | $3.52M | 0.00% | −4,416−12.2% | Reduced |
| Swedbank AB | 32,150 | $3.56M | 0.00% | −6,550−16.9% | Reduced |
| Prescott Group Capital Management, L.L.C. | 32,682 | $3.62M | 0.36% | +20,429+166.7% | Added |
| Captrust Financial Advisors | 33,021 | $3.65M | 0.01% | +5,477+19.9% | Added |
| Amundi | 33,583 | $3.72M | 0.00% | +15,773+88.6% | Added |
| Motley Fool Wealth Management, LLC | 34,319 | $3.80M | 0.43% | −11,648−25.3% | Reduced |
| Quinn Opportunity Partners LLC | 35,000 | $3.87M | 0.20% | +35,000 | New |
| Hudson Bay Capital Management LP | 36,000 | $3.98M | 0.02% | −78,000−68.4% | Reduced |
| Timber Creek Capital Management LLC | 36,120 | $4.00M | 0.97% | +5,135+16.6% | Added |
| Toroso Investments, LLC | 38,298 | $4.04M | 0.01% | +35,444+1,241.9% | Added |
| Janney Montgomery Scott LLC | 36,659 | $4.06M | 0.01% | +12,717+53.1% | Added |
| Hotchkis & Wiley Capital Management LLC | 38,892 | $4.30M | 0.01% | +27,692+247.3% | Added |