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 |
|---|---|---|---|---|---|
| Blair William & Co | 8,797 | $973.5K | 0.00% | −5,949−40.3% | Reduced |
| Loomis Sayles & Co L P | 8,665 | $958.8K | 0.00% | −58,912−87.2% | Reduced |
| Welch & Forbes LLC | 8,605 | $952.2K | 0.01% | −10,105−54.0% | Reduced |
| Oppenheimer Asset Management Inc. | 8,575 | $948.9K | 0.01% | −955−10.0% | Reduced |
| Ossiam | 8,121 | $898.7K | 0.02% | +3,632+80.9% | Added |
| NewEdge Wealth, LLC | 8,038 | $889.5K | 0.01% | +3,619+81.9% | Added |
| Susquehanna International Group, LLP | 8,031 | $888.7K | 0.00% | +8,031 | New |
| Atria Investments LLC | 7,446 | $824.0K | 0.01% | +1,191+19.0% | Added |
| Formula Growth Ltd | 7,000 | $774.6K | 0.35% | +7,000 | New |
| Motco | 6,893 | $762.8K | 0.07% | +3,196+86.4% | Added |
| Highland Capital Management, LLC | 6,718 | $743.4K | 0.04% | 00.0% | Unchanged |
| Cambridge Investment Research Advisors, Inc. | 6,676 | $739.0K | 0.00% | +2,348+54.3% | Added |
| Westover Capital Advisors, LLC | 6,628 | $733.5K | 0.13% | −811−10.9% | Reduced |
| SkyView Investment Advisors, LLC | 6,387 | $707.0K | 0.10% | +12+0.2% | Added |
| Legacy Capital Wealth Partners, LLC | 6,363 | $704.1K | 0.15% | +1,148+22.0% | Added |
| Thornburg Investment Management Inc | 6,010 | $665.1K | 0.01% | −48,163−88.9% | Reduced |
| Vise Technologies, Inc. | 3,632 | $661.8K | 0.01% | 00.0% | Unchanged |
| First National Advisers, LLC | 5,936 | $656.9K | 0.10% | −1,637−21.6% | Reduced |
| Tributary Capital Management, LLC | 5,827 | $644.8K | 0.06% | +59+1.0% | Added |
| Monticello Wealth Management, LLC | 5,744 | $635.6K | 0.04% | +3,314+136.4% | Added |
| Malaga Cove Capital, LLC | 5,544 | $613.5K | 0.22% | −45−0.8% | Reduced |
| Aso Group Ltd | 5,482 | $607.0K | 0.26% | 00.0% | Unchanged |
| Federation des caisses Desjardins du Quebec | 5,403 | $597.9K | 0.00% | +703+15.0% | Added |
| CenterBook Partners LP | 5,394 | $596.9K | 0.03% | +1,340+33.1% | Added |
| Capital Group Investment Management Pte. Ltd. | 5,332 | $590.0K | 0.10% | −1,146−17.7% | Reduced |
| Washington Trust Advisors, Inc. | 5,315 | $588.2K | 0.05% | −597−10.1% | Reduced |
| Brighton Jones LLC | 5,250 | $581.0K | 0.01% | +5,250 | New |
| Sterling Capital Management LLC | 5,192 | $574.5K | 0.01% | −105−2.0% | Reduced |
| Pavaki Capital Management LLC | 5,000 | $553.3K | 0.39% | +3,200+177.8% | Added |
| Henshaw Capital LLC | 4,734 | $523.9K | 0.02% | 00.0% | Unchanged |
| Colony Group, LLC | 4,696 | $519.7K | 0.00% | −21,105−81.8% | Reduced |
| Resources Investment Advisors, LLC. | 4,672 | $517.0K | 0.01% | −235−4.8% | Reduced |
| Cypress Advisory Group LLC | 4,670 | $516.8K | 0.39% | 00.0% | Unchanged |
| CSM Advisors, LLC | 4,657 | $515.0K | 0.01% | +2,736+142.4% | Added |
| HighTower Advisors, LLC | 4,276 | $473.2K | 0.00% | −998−18.9% | Reduced |
| Huntington National Bank | 4,026 | $445.5K | 0.00% | +3,857+2,282.2% | Added |
| Neuberger Berman Group LLC | 3,903 | $432.0K | 0.00% | −156,919−97.6% | Reduced |
| Northwestern Mutual Wealth Management Co | 3,903 | $431.9K | 0.00% | −37−0.9% | Reduced |
| Nwam LLC | 3,810 | $421.6K | 0.02% | −15−0.4% | Reduced |
| Advisortrust Partners, LLC | 3,756 | $415.6K | 0.17% | +1,723+84.8% | Added |
| Kestra Advisory Services, LLC | 3,754 | $415.4K | 0.00% | −904−19.4% | Reduced |
| Diametric Capital, LP | 3,753 | $415.3K | 0.11% | +3,753 | New |
| Cerity Partners LLC | 3,700 | $409.4K | 0.00% | +884+31.4% | Added |
| Rathbone Brothers plc | 3,620 | $400.6K | 0.00% | −130−3.5% | Reduced |
| Annis Gardner Whiting Capital Advisors, LLC | 3,605 | $399.0K | 0.06% | 00.0% | Unchanged |
| Rhumbline Advisers | 3,554 | $393.3K | 0.00% | −882−19.9% | Reduced |
| Creative Planning | 3,498 | $387.1K | 0.00% | −880−20.1% | Reduced |
| Rockefeller Capital Management L.P. | 3,472 | $384.3K | 0.00% | +1,133+48.4% | Added |
| Persistent Asset Partners Ltd | 3,413 | $377.7K | 0.15% | +939+38.0% | Added |
| Trust Point Inc. | 3,379 | $373.9K | 0.03% | −122−3.5% | Reduced |
| RSM US Wealth Management LLC | 3,335 | $369.1K | 0.00% | +894+36.6% | Added |
| American Capital Management Inc | 3,270 | $361.9K | 0.02% | −20,462−86.2% | Reduced |
| Sara-Bay Financial | 3,259 | $360.6K | 0.11% | 00.0% | Unchanged |
| Storgate, LLC | 3,208 | $355.0K | 0.28% | −319−9.0% | Reduced |
| New Wave Wealth Advisors LLC | 3,200 | $354.1K | 0.12% | +1,721+116.4% | Added |
| Commonwealth Equity Services, LLC | 3,200 | $354.1K | 0.00% | −1,905−37.3% | Reduced |
| Mariner, LLC | 3,176 | $351.1K | 0.00% | −702−18.1% | Reduced |
| State of Wyoming | 3,082 | $341.1K | 0.04% | +901+41.3% | Added |
| Portland Investment Counsel Inc. | 3,000 | $332.0K | 0.11% | 00.0% | Unchanged |
| GFS Advisors, LLC | 6,700 | $322.8K | 0.02% | +6,700 | New |
| Legacy Wealth Asset Management, LLC | 2,866 | $317.2K | 0.08% | +279+10.8% | Added |
| Texas Capital Bank Wealth Management Services Inc | 2,850 | $315.4K | 0.02% | +2,850 | New |
| Western Pacific Wealth Management, LP | 2,845 | $314.8K | 0.32% | +1,465+106.2% | Added |
| Snowden Capital Advisors LLC | 2,841 | $314.4K | 0.01% | +2,841 | New |
| O'Shaughnessy Asset Management, LLC | 2,778 | $307.4K | 0.00% | −299−9.7% | Reduced |
| First Trust Advisors LP | 2,760 | $305.4K | 0.00% | +401+17.0% | Added |
| GWM Advisors LLC | 2,738 | $302.9K | 0.00% | +1,429+109.2% | Added |
| Merit Financial Group, LLC | 2,681 | $296.7K | 0.00% | +947+54.6% | Added |
| National Bank of Canada | 2,587 | $294.7K | 0.00% | −7,685−74.8% | Reduced |
| Mutual Advisors, LLC | 2,630 | $291.0K | 0.01% | +305+13.1% | Added |
| Empowered Funds, LLC | 2,609 | $288.7K | 0.00% | +466+21.7% | Added |
| Net Worth Advisory Group | 2,604 | $288.1K | 0.06% | −260−9.1% | Reduced |
| William Blair Investment Management, LLC | 2,577 | $285.2K | 0.00% | +63+2.5% | Added |
| Gabelli Funds LLC | 2,500 | $276.6K | 0.00% | +2,500 | New |
| Gsa Capital Partners LLP | 2,485 | $275.0K | 0.02% | +2,485 | New |
| Jane Street Group, LLC | 2,450 | $271.1K | 0.00% | −558−18.6% | Reduced |
| Transamerica Financial Advisors, Inc. | 2,335 | $258.4K | 0.02% | +1,565+203.2% | Added |
| BayBridge Capital Group, LLC | 1,410 | $256.9K | 0.16% | 00.0% | Unchanged |
| Investment Insight Wealth Management, LLC | 2,313 | $256.0K | 0.28% | −839−26.6% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 2,233 | $255.0K | 0.00% | +462+26.1% | Added |
| Miller Global Investments, LLC | 2,304 | $255.0K | 0.23% | −12−0.5% | Reduced |
| CIBC Asset Management Inc | 2,299 | $254.4K | 0.00% | +560+32.2% | Added |
| Advisor Group Holdings, Inc. | 2,291 | $253.8K | 0.00% | −1,470−39.1% | Reduced |
| Pinnacle Associates Ltd | 2,271 | $251.3K | 0.00% | −578−20.3% | Reduced |
| Fayez Sarofim & Co | 2,270 | $251.2K | 0.00% | −25,534−91.8% | Reduced |
| Legacy Advisors, LLC | 2,200 | $243.5K | 0.03% | 00.0% | Unchanged |
| Cullen Investment Group, Ltd. | 2,173 | $240.5K | 0.03% | 00.0% | Unchanged |
| Virtus Family Office LLC | 2,172 | $240.4K | 0.21% | −695−24.2% | Reduced |
| Oversea-Chinese Banking CORP Ltd | 2,162 | $239.2K | 0.01% | −14,086−86.7% | Reduced |
| T3 Companies, LLC | 2,000 | $221.3K | 0.30% | +2,000 | New |
| VELA Investment Management, LLC | 1,994 | $220.7K | 0.06% | +1,994 | New |
| Integrated Wealth Concepts LLC | 1,939 | $214.6K | 0.00% | −18,736−90.6% | Reduced |
| JustInvest LLC | 1,919 | $212.4K | 0.00% | −280−12.7% | Reduced |
| Ground Swell Capital, LLC | 1,885 | $208.6K | 0.41% | +1,885 | New |
| Henry James International Management, Inc. | 1,878 | $207.8K | 0.08% | −8,475−81.9% | Reduced |
| Papp L Roy & Associates | 1,864 | $206.3K | 0.02% | −1,685−47.5% | Reduced |
| Natural Investments, LLC | 1,829 | $202.0K | 0.05% | −135−6.9% | Reduced |
| ABS Direct Equity Fund LLC | 1,800 | $201.5K | 0.15% | +1,800 | New |
| MML Investors Services, LLC | 1,812 | $200.5K | 0.00% | −319−15.0% | Reduced |
| Headlands Technologies LLC | 1,808 | $200.1K | 0.02% | +1,808 | New |