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.
| 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, Q2 2026
Shares, value and share of portfolio for each institution holding Icon PLC; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Equity Investment Corp | 888,875 | $154.4M | 2.95% | −207,520−18.9% | Reduced |
| SEI Investments Co | 902,185 | $156.7M | 0.14% | +144,696+19.1% | Added |
| Kempen Capital Management N.V. | 961,665 | $167.1M | 1.28% | +42,952+4.7% | Added |
| Ameriprise Financial Inc | 979,596 | $170.2M | 0.03% | +877,359+858.2% | Added |
| Capital World Investors | 1,106,056 | $192.1M | 0.02% | +1,225+0.1% | Added |
| Brandes Investment Partners, LP | 1,185,774 | $206.0M | 1.44% | −249,279−17.4% | Reduced |
| 1832 Asset Management L.P. | 1,194,860 | $207.6M | 0.25% | +1,620+0.1% | Added |
| Maple Rock Capital Partners Inc. | 1,199,600 | $208.4M | 4.09% | +864,300+257.8% | Added |
| Earnest Partners LLC | 1,242,639 | $215.9M | 0.78% | +356,849+40.3% | Added |
| Dimensional Fund Advisors LP | 1,270,230 | $220.6M | 0.04% | +481,402+61.0% | Added |
| D. E. Shaw & Co., Inc. | 1,357,143 | $235.7M | 0.15% | +158,588+13.2% | Added |
| Trinity Street Asset Management LLP | 1,535,462 | $266.7M | 13.74% | +327,314+27.1% | Added |
| Boston Partners | 1,620,730 | $281.4M | 0.25% | +785,591+94.1% | Added |
| Ruane, Cunniff & Goldfarb L.P. | 2,048,087 | $355.8M | 5.54% | +413,476+25.3% | Added |
| Massachusetts Financial Services Co | 2,105,171 | $369.4M | 0.12% | −622,653−22.8% | Reduced |
| Principal Financial Group Inc | 2,950,974 | $512.6M | 0.25% | −360,797−10.9% | Reduced |
| Greenhaven Associates IncSuperinvestorGreenhaven Associates | 3,100,615 | $538.6M | 6.22% | +1,098,204+54.8% | Added |
| Brave Warrior Advisors, LLC | 3,153,308 | $547.8M | 11.94% | +156,497+5.2% | Added |
| Harris Associates L PSuperinvestorHarris Associates (Oakmark) | 4,468,146 | $776.2M | 1.03% | +116,829+2.7% | Added |
| Invesco Ltd. | 5,264,236 | $914.5M | 0.07% | +1,385,367+35.7% | Added |
| FMR LLC | 5,271,321 | $915.7M | 0.04% | +1,097,315+26.3% | Added |
| Wellington Management Group LLP | 5,320,054 | $924.1M | 0.16% | −592,983−10.0% | Reduced |
| Artisan Partners Limited Partnership | 8,636,406 | $1.50B | 2.45% | +357,461+4.3% | Added |
| Compagnie Lombard Odier SCmA | 0 | $0 | 0.00% | −110−100.0% | Sold out |
| Sachem Head Capital Management LP | 0 | $0 | 0.00% | −2,105,000−100.0% | Sold out |
| Madison Avenue Partners, LP | 0 | $0 | 0.00% | −1,282,838−100.0% | Sold out |
| Holocene Advisors, LP | 0 | $0 | 0.00% | −840,845−100.0% | Sold out |
| Sound Shore Management Inc | 0 | $0 | 0.00% | −626,958−100.0% | Sold out |
| Impactive Capital LP | 0 | $0 | 0.00% | −450,540−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −196,571−100.0% | Sold out |
| Soleus Capital Management, L.P. | 0 | $0 | 0.00% | −192,000−100.0% | Sold out |
| Brown Capital Management LLC | 0 | $0 | 0.00% | −158,018−100.0% | Sold out |
| Philosophy Capital Management LLC | 0 | $0 | 0.00% | −111,015−100.0% | Sold out |
| Running Oak Capital LLC | 0 | $0 | 0.00% | −108,647−100.0% | Sold out |
| Aviva PLC | 0 | $0 | 0.00% | −106,512−100.0% | Sold out |
| Kingdon Capital Management, L.L.C. | 0 | $0 | 0.00% | −105,300−100.0% | Sold out |
| Steamboat Capital Partners, LLC | 0 | $0 | 0.00% | −100,299−100.0% | Sold out |
| Meridiem Capital Partners LP | 0 | $0 | 0.00% | −93,878−100.0% | Sold out |
| Cambiar Investors LLC | 0 | $0 | 0.00% | −87,045−100.0% | Sold out |
| Eversept Partners, LP | 0 | $0 | 0.00% | −68,688−100.0% | Sold out |
| Armistice Capital, LLC | 0 | $0 | 0.00% | −60,268−100.0% | Sold out |
| Marks Group Wealth Management, Inc | 0 | $0 | 0.00% | −50,201−100.0% | Sold out |
| DKRT Investments Corp. | 0 | $0 | 0.00% | −50,000−100.0% | Sold out |
| Hudson Bay Capital Management LP | 0 | $0 | 0.00% | −36,000−100.0% | Sold out |
| Quinn Opportunity Partners LLC | 0 | $0 | 0.00% | −35,000−100.0% | Sold out |
| Motley Fool Wealth Management, LLC | 0 | $0 | 0.00% | −34,319−100.0% | Sold out |
| Swedbank AB | 0 | $0 | 0.00% | −32,150−100.0% | Sold out |
| Two Sigma Investments, LP | 0 | $0 | 0.00% | −28,934−100.0% | Sold out |
| Militia Capital Management LLC | 0 | $0 | 0.00% | −22,800−100.0% | Sold out |
| Heights Point Management, LP | 0 | $0 | 0.00% | −21,700−100.0% | Sold out |
| American Financial Group Inc | 0 | $0 | 0.00% | −20,000−100.0% | Sold out |
| Quantitative Investment Management, LLC | 0 | $0 | 0.00% | −19,762−100.0% | Sold out |
| Fund 1 Investments, LLC | 0 | $0 | 0.00% | −19,527−100.0% | Sold out |
| Skylands Capital, LLC | 0 | $0 | 0.00% | −19,300−100.0% | Sold out |
| Rangeley Capital, LLC | 0 | $0 | 0.00% | −17,700−100.0% | Sold out |
| Avidity Partners Management LP | 0 | $0 | 0.00% | −16,000−100.0% | Sold out |
| Kerrisdale Advisers, LLC | 0 | $0 | 0.00% | −15,646−100.0% | Sold out |
| Maverick Capital LtdSuperinvestorMaverick Capital | 0 | $0 | 0.00% | −13,887−100.0% | Sold out |
| Healthcare of Ontario Pension Plan Trust Fund | 0 | $0 | 0.00% | −13,112−100.0% | Sold out |
| Entropy Technologies, LP | 0 | $0 | 0.00% | −12,816−100.0% | Sold out |
| First Manhattan Co | 0 | $0 | 0.00% | −10,055−100.0% | Sold out |
| SkyView Investment Advisors, LLC | 0 | $0 | 0.00% | −6,387−100.0% | Sold out |
| Vise Technologies, Inc. | 0 | $0 | 0.00% | −3,632−100.0% | Sold out |
| Resources Investment Advisors, LLC. | 0 | $0 | 0.00% | −4,672−100.0% | Sold out |
| Diametric Capital, LP | 0 | $0 | 0.00% | −3,753−100.0% | Sold out |
| GFS Advisors, LLC | 0 | $0 | 0.00% | −6,700−100.0% | Sold out |
| Snowden Capital Advisors LLC | 0 | $0 | 0.00% | −2,841−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −2,485−100.0% | Sold out |
| BayBridge Capital Group, LLC | 0 | $0 | 0.00% | −1,410−100.0% | Sold out |
| Oversea-Chinese Banking CORP Ltd | 0 | $0 | 0.00% | −2,162−100.0% | Sold out |
| T3 Companies, LLC | 0 | $0 | 0.00% | −2,000−100.0% | Sold out |
| Integrated Wealth Concepts LLC | 0 | $0 | 0.00% | −1,939−100.0% | Sold out |
| Ground Swell Capital, LLC | 0 | $0 | 0.00% | −1,885−100.0% | Sold out |
| Papp L Roy & Associates | 0 | $0 | 0.00% | −1,864−100.0% | Sold out |
| Natural Investments, LLC | 0 | $0 | 0.00% | −1,829−100.0% | Sold out |
| ABS Direct Equity Fund LLC | 0 | $0 | 0.00% | −1,800−100.0% | Sold out |
| Headlands Technologies LLC | 0 | $0 | 0.00% | −1,808−100.0% | Sold out |
| Advisory Services Network, LLC | 0 | $0 | 0.00% | −1,366−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −1,366−100.0% | Sold out |
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −1,152−100.0% | Sold out |
| Stance Capital LLC | 0 | $0 | 0.00% | −600−100.0% | Sold out |
| Quadrant Capital Group LLC | 0 | $0 | 0.00% | −432−100.0% | Sold out |
| Bank of New Hampshire | 0 | $0 | 0.00% | −282−100.0% | Sold out |
| Boreal Capital Management LLC | 0 | $0 | 0.00% | −160−100.0% | Sold out |
| Massmutual Trust Co FSB | 0 | $0 | 0.00% | −144−100.0% | Sold out |
| MBM Wealth Consultants, LLC | 0 | $0 | 0.00% | −120−100.0% | Sold out |
| Transce3nd, LLC | 0 | $0 | 0.00% | −45−100.0% | Sold out |
| Root Financial Partners, LLC | 0 | $0 | 0.00% | −26−100.0% | Sold out |
| Ancora Advisors, LLC | 0 | $0 | 0.00% | −20−100.0% | Sold out |
| Innovative Asset Advisors Group, LLC | 0 | $0 | 0.00% | −19−100.0% | Sold out |
| Ogorek Anthony Joseph | 0 | $0 | 0.00% | −20−100.0% | Sold out |
| St Germain D J Co Inc | 0 | $0 | 0.00% | −11−100.0% | Sold out |
| Key Financial Inc | 0 | $0 | 0.00% | −10−100.0% | Sold out |
| Merrithew & Thorsten Inc | 0 | $0 | 0.00% | −14−100.0% | Sold out |
| Golden State Wealth Management, LLC | 0 | $0 | 0.00% | −7−100.0% | Sold out |
| Vermillion Wealth Management, Inc. | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| Central Trust Co | 0 | $0 | 0.00% | −2−100.0% | Sold out |
| TopTier Wealth Management, LLC | 0 | $0 | 0.00% | −2−100.0% | Sold out |
| Nisa Investment Advisors, LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Prosperity Bancshares Inc | 0 | $0 | 0.00% | −1−100.0% | Sold out |