IconICLR
13F holders, Q1 2026 (March 31)418holders −97
60new positions
148sold out
9famous investors
$111.88avg. 13F price*
At the end of Q1 2026, 418 institutions reported holding Icon PLC (ICLR) in their 13F filings, down 97 from Q4 2025. 60 opened new positions and 148 sold out. The largest holders were Artisan Partners Limited Partnership ($916.1M), Wellington Management Group LLP ($654.3M) and Harris Associates (Oakmark Funds) ($481.5M). 9 famous investors held it, including Glenn Greenberg (8.2% of Brave Warrior Advisors's portfolio), Bill Nygren (0.6% of Harris Associates (Oakmark Funds)'s portfolio) and Ron Baron (0.1% of Baron Capital (BAMCO)'s portfolio).
- Company
- Icon PLC
- CUSIP
- G4705A100
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 60 | $1.0B |
| Exits | 148 | $2.8B |
All 13F filers, Q4 2025 → Q1 2026: 25,222,906 shares bought and 23,203,908 shares sold, net +2,018,998 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 418 holders
| Artisan Partners Limited Partnership | 1.49% | Add +20.4% | 8,278,945 | $916.1M |
| Wellington Management Group LLP | 0.12% | Add +35.9% | 5,913,037 | $654.3M |
| Harris Associates (Oakmark Funds) | 0.64% | Add +73.3% | 4,351,317 | $481.5M |
| FMR LLC | 0.02% | Add +34.7% | 4,174,006 | $461.9M |
| Invesco Ltd. | 0.04% | Add +3.3% | 3,878,869 | $429.2M |
| Principal Financial Group Inc. | 0.20% | Add +10.3% | 3,311,771 | $366.5M |
| Brave Warrior Advisors | 8.21% | New | 2,996,811 | $331.6M |
| Massachusetts Financial Services Co. | 0.10% | Add +15.7% | 2,727,824 | $304.9M |
| Alliancebernstein L.P. | 0.08% | Add +5.7% | 1,344,595 | $245.0M |
| Sachem Head Capital Management LP | 5.61% | New | 2,105,000 | $232.9M |
| Greenhaven Associates Inc. | 3.65% | Add +11412.1% | 2,002,411 | $221.6M |
| Ruane, Cunniff & Goldfarb L.P. | 3.00% | Reduce -2.7% | 1,634,611 | $180.9M |
| Brandes Investment Partners, LP | 1.12% | Add +84.8% | 1,435,053 | $158.8M |
| Madison Avenue Partners, LP | 6.17% | New | 1,282,838 | $142.0M |
| Trinity Street Asset Management LLP | 9.17% | Add +12.7% | 1,208,148 | $133.7M |
| D. E. Shaw & Co. | 0.11% | Add +83.5% | 1,198,555 | $132.6M |
| 1832 Asset Management L.P. | 0.17% | Reduce -0.9% | 1,193,240 | $132.0M |
| Capital World Investors | 0.02% | Reduce -26.2% | 1,104,831 | $122.3M |
| Equity Investment Corp. | 2.38% | Add +75.9% | 1,096,395 | $121.3M |
| First Pacific Advisors, LP | 1.57% | Add +1.1% | 991,075 | $109.7M |
| Lyrical Asset Management LP | 1.58% | Reduce -3.1% | 938,204 | $103.8M |
| Van Lanschot Kempen Investment Management N.V. | 0.89% | Add +23.6% | 918,713 | $101.7M |
| Earnest Partners LLC | 0.40% | Reduce -0.5% | 885,790 | $98.0M |
| Holocene Advisors, LP | 0.23% | Add +419.1% | 840,845 | $93.0M |
| Boston Partners | 0.10% | Reduce -33.7% | 835,139 | $92.4M |
| Dimensional Fund Advisors LP | 0.02% | Add +50.8% | 788,828 | $87.3M |
| Franklin Resources Inc. | 0.02% | Reduce -72.7% | 816,085 | $86.5M |
| Sei Investments Co. | 0.08% | Reduce -3.6% | 757,489 | $83.8M |
| Lakewood Capital Management, LP | 5.31% | Add +124.9% | 747,700 | $82.7M |
| Goldman Sachs Group Inc. | 0.01% | Add +33.3% | 630,621 | $69.8M |
| Sound Shore Management Inc | 2.33% | New | 626,958 | $69.4M |
| Thrivent Financial for Lutherans | 0.13% | Add +119.5% | 622,366 | $68.9M |
| UBS Group AG | 0.01% | Add +13.7% | 612,265 | $67.8M |
| Stephens Investment Management Group LLC | 0.91% | Add +10.3% | 599,176 | $66.3M |
| Bank of America Corp. | 0.00% | Reduce -10.8% | 543,487 | $60.1M |
| Russell Investments Group, Ltd. | 0.06% | Add +83.1% | 514,306 | $56.9M |
| State Street Corp. | 0.00% | Add +26.6% | 457,209 | $50.6M |
| Impactive Capital LP | 3.62% | New | 450,540 | $49.9M |
| Baron Capital (BAMCO) | 0.14% | Reduce -20.1% | 426,805 | $47.2M |
| BlackRock, Inc. | 0.00% | Add +9.5% | 413,596 | $45.8M |
| Aberdeen Group plc | 0.07% | Add +504.4% | 399,290 | $44.2M |
| River Road Asset Management, LLC | 0.46% | Reduce -22.2% | 369,715 | $40.9M |
| Eagle Health Investments LP | 8.33% | Add +45.1% | 358,500 | $39.7M |
| New York State Common Retirement Fund | 0.05% | Add +40.3% | 345,711 | $38.3M |
| Maple Rock Capital Partners Inc. | 1.21% | New | 335,300 | $37.1M |
| Hudson Edge Investment Partners Inc. | 5.16% | Add +22.5% | 319,003 | $35.3M |
| Sio Capital Management, LLC | 4.89% | Add +140.8% | 306,358 | $33.9M |
| Morgan Stanley | 0.00% | Reduce -38.1% | 293,142 | $32.4M |
| Zuckerman Investment Group, LLC | 2.93% | Add +80.5% | 280,992 | $31.1M |
| Raymond James Financial Inc. | 0.01% | Add +36.8% | 261,432 | $28.9M |
| Citadel Advisors | 0.02% | Add +499.6% | 251,607 | $27.8M |
| Perry Creek Capital LP | 16.89% | Add +157.9% | 245,000 | $27.1M |
| CIBC Bancorp USA Inc. | 0.03% | — | 228,953 | $25.4M |
| Diamond Hill Capital Management, LLC (Investment Advisor) | 0.15% | Reduce -7.9% | 220,337 | $24.4M |
| Walleye Capital LLC | 0.15% | Add +46.4% | 196,571 | $21.8M |
| Soleus Capital Management, L.P. | 0.86% | New | 192,000 | $21.2M |
| Legal & General Group Plc | 0.00% | Add +18.7% | 175,394 | $19.4M |
| Fisher Funds Management LTD | 0.57% | Reduce -66.0% | 174,291 | $19.3M |
| Brown Advisory Inc. | 0.03% | Add +87.7% | 173,379 | $19.2M |
| Brown Capital Management LLC | 2.48% | Add +26.8% | 158,018 | $17.5M |
| Distillate Capital Partners LLC | 0.90% | Add +132.6% | 153,865 | $17.0M |
| Royal Bank of Canada | 0.00% | Add +68.0% | 153,728 | $17.0M |
| Manufacturers Life Insurance Company, The | 0.01% | Reduce -37.8% | 150,794 | $16.7M |
| Moore Capital Management, LP | 0.65% | Add +157.4% | 147,208 | $16.3M |
| Envestnet Asset Management Inc. | 0.00% | Add +26.2% | 145,263 | $16.1M |
| Hyperion Capital Advisors LP | 7.59% | Add +115.8% | 142,455 | $15.8M |
| Balyasny Asset Management L.P. | 0.03% | Add +80.6% | 136,416 | $15.1M |
| Eldred Rock Partners, LLC | 3.79% | Add +153.4% | 134,469 | $14.9M |
| California Public Employees Retirement System | 0.01% | Reduce -22.9% | 120,297 | $13.3M |
| Corient Private Wealth LP | 0.02% | Add +134.6% | 115,291 | $12.8M |
| Philosophy Capital Management LLC | 1.43% | Reduce -22.9% | 111,015 | $12.3M |
| Zurich Insurance Group Ltd | 0.10% | New | 109,926 | $12.2M |
| Vident Advisory, LLC | 0.10% | Add +165.6% | 109,046 | $12.1M |
| Running Oak Capital LLC | 1.62% | Add +18.8% | 108,647 | $12.0M |
| Frontier Capital Management Co. LLC | 0.12% | Add +49.1% | 108,467 | $12.0M |
| Aviva PLC | 0.02% | Reduce -2.4% | 106,512 | $11.8M |
| Kingdon Capital Management, L.L.C. | 1.95% | Add +108.1% | 105,300 | $11.7M |
| Canada Pension Plan Investment Board | 0.01% | Reduce -41.9% | 102,743 | $11.4M |
| Ameriprise Financial Inc. | 0.00% | Reduce -44.5% | 102,237 | $11.3M |
| Polar Capital Holdings Plc | 0.05% | New | 100,460 | $11.1M |
| Steamboat Capital Partners, LLC | 2.76% | New | 100,299 | $11.1M |
| Stanley Capital Management, LLC | 1.85% | New | 100,000 | $11.1M |
| Bank of Montreal | 0.00% | Add +55.8% | 96,404 | $10.7M |
| Geode Capital Management, LLC | 0.00% | Add +4.6% | 95,880 | $10.6M |
| Meridiem Capital Partners LP | 0.68% | New | 93,878 | $10.4M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +60.4% | 87,381 | $9.7M |
| Cambiar Investors LLC | 0.45% | Add +16.3% | 87,045 | $9.6M |
| State of Michigan Retirement System | 0.05% | No change | 85,070 | $9.4M |
| Farmers & Merchants Investments Inc. | 0.25% | Add +3.0% | 83,021 | $9.2M |
| Allspring Global Investments Holdings, LLC | 0.02% | Reduce -92.4% | 82,135 | $9.2M |
| Janus Henderson Group PLC | 0.00% | Reduce -67.0% | 82,061 | $9.1M |
| Leith Wheeler Investment Counsel Ltd. | 0.74% | New | 81,408 | $9.0M |
| Foresight Group Ltd Liability Partnership | 1.58% | Reduce -0.3% | 80,660 | $8.9M |
| Parthenon LLC | 1.00% | No change | 79,203 | $8.8M |
| Wells Fargo & Company | 0.00% | Reduce -29.8% | 73,359 | $8.1M |
| Eversept Partners, LP | 0.50% | Reduce -28.3% | 68,688 | $7.6M |
| Muhlenkamp & Co. Inc. | 1.92% | Reduce -10.6% | 66,005 | $7.3M |
| Tudor Investment Corporation | 0.04% | New | 65,375 | $7.2M |
| Trexquant Investment LP | 0.05% | New | 62,628 | $6.9M |
| 683 Capital Management, LLC | 0.67% | New | 62,000 | $6.9M |
"% of holder's portfolio" is ICLR's weight in each manager's 13F, not the share of Icon PLC the manager owns.