| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Artisan Partners Limited Partnership | 9% | +74% | $1,081,466,632 | +$435,596,752 | 7,184,870 | +67% | Artisan Partners Asset Management Inc. | 30 Jun 2025 |
| WELLINGTON MANAGEMENT GROUP LLP | 6% | $811,498,975 | 4,637,137 | Wellington Management Group LLP | 30 Sep 2025 | |||
| ORBIS INVESTMENT MANAGEMENT LTD | 5.5% | +4% | $792,029,760 | +$13,894,965 | 4,208,000 | +1.8% | ORBIS INVESTMENT MANAGEMENT LTD | 31 Dec 2025 |
| WCM INVESTMENT MANAGEMENT, LLC | 0.25% | $26,956,720 | 199,946 | WCM Investment Management, LLC | 30 Jun 2025 |
As of 31 Dec 2025, 500 institutional investors reported holding 77,284,486 shares of ICON PLC - Common Stock (ICLR). This represents 101% of the company’s total 76,509,091 outstanding shares.
The largest institutional shareholders of ICON PLC - Common Stock (ICLR) together control 69% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| Artisan Partners Limited Partnership | 9% | 6,873,977 | -2.8% | 1.9% | $1,252,576,089 |
| WELLINGTON MANAGEMENT GROUP LLP | 5.7% | 4,350,750 | -6.2% | 0.14% | $792,793,666 |
| Orbis Allan Gray Ltd | 5.5% | 4,214,661 | +1.8% | 3.2% | $767,995,527 |
| Invesco Ltd. | 4.9% | 3,756,896 | +9.6% | 0.1% | $684,581,530 |
| FMR LLC | 4% | 3,097,895 | +60% | 0.03% | $564,498,405 |
| PRINCIPAL FINANCIAL GROUP INC | 3.9% | 3,001,535 | -8.4% | 0.28% | $546,939,708 |
| FRANKLIN RESOURCES INC | 3.9% | 2,993,336 | +8.7% | 0.13% | $545,410,252 |
| Ninety One UK Ltd | 3.9% | 2,945,810 | -2% | 1.2% | $536,785,450 |
| HARRIS ASSOCIATES L P | 3.3% | 2,510,166 | +7.2% | 0.58% | $457,402,449 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 3.1% | 2,357,033 | -33% | 0.14% | $429,498,553 |
| Ruane, Cunniff & Goldfarb L.P. | 2.2% | 1,679,590 | -1.3% | 4.8% | $306,054,890 |
| Capital World Investors | 2% | 1,496,479 | +555% | 0.04% | $272,688,403 |
| WGI DM, LLC | 1.8% | 1,396,009 | +9.2% | 19% | $254,380,760 |
| ALLIANCEBERNSTEIN L.P. | 1.7% | 1,272,462 | -7.4% | 0.07% | $231,868,026 |
| Boston Partners | 1.6% | 1,258,903 | +70% | 0.24% | $229,400,369 |
| 1832 Asset Management L.P. | 1.6% | 1,204,327 | +0.02% | 0.28% | $219,452,466 |
| Allspring Global Investments Holdings, LLC | 1.4% | 1,080,192 | +1.1% | 0.33% | $203,799,825 |
| Trinity Street Asset Management LLP | 1.4% | 1,072,428 | +23% | 12% | $195,417,830 |
| AMERICAN CENTURY COMPANIES INC | 1.4% | 1,038,013 | +143% | 0.1% | $189,146,980 |
| First Pacific Advisors, LP | 1.3% | 980,804 | +0.66% | 2.4% | $178,722,105 |
| LYRICAL ASSET MANAGEMENT LP | 1.3% | 967,961 | 2.5% | $176,381,853 | |
| EARNEST PARTNERS LLC | 1.2% | 890,076 | +9.9% | 0.7% | $162,189,649 |
| NORGES BANK | 1.1% | 878,462 | 0.02% | $160,073,346 | |
| SEI INVESTMENTS CO | 1% | 785,937 | +12% | 0.14% | $143,213,292 |
| BRANDES INVESTMENT PARTNERS, LP | 1% | 776,732 | +2.8% | 1.1% | $141,538,361 |
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 77,284,486 | $14,088,254,271 | +$562,089,622 | $182.22 | 500 |
| 2025 Q3 | 74,377,895 | $13,023,560,107 | -$176,119,604 | $175.00 | 506 |
| 2025 Q2 | 76,791,411 | $11,178,935,190 | +$159,733,466 | $145.45 | 480 |
| 2025 Q1 | 74,489,454 | $13,050,924,618 | -$528,030,891 | $174.99 | 549 |
| 2024 Q4 | 76,038,063 | $15,951,367,769 | -$651,647,444 | $209.71 | 587 |
| 2024 Q3 | 77,759,120 | $22,348,580,947 | -$85,319,426 | $287.31 | 652 |
| 2024 Q2 | 77,295,616 | $24,235,258,946 | -$87,857,874 | $313.47 | 670 |
| 2024 Q1 | 77,623,418 | $26,047,815,750 | -$308,391,818 | $335.95 | 639 |
| 2023 Q4 | 77,555,794 | $21,967,290,922 | -$285,900,203 | $283.07 | 593 |
| 2023 Q3 | 79,794,193 | $19,649,497,222 | +$183,510,507 | $246.25 | 546 |
| 2023 Q2 | 78,870,444 | $19,742,098,119 | +$1,089,811,895 | $250.20 | 524 |
| 2023 Q1 | 74,716,469 | $15,955,091,516 | +$113,958,731 | $213.59 | 527 |
| 2022 Q4 | 73,866,132 | $14,361,834,563 | -$313,078,427 | $194.25 | 516 |
| 2022 Q3 | 75,415,895 | $13,864,584,480 | +$112,923,571 | $183.78 | 473 |
| 2022 Q2 | 74,209,990 | $16,083,672,391 | +$346,153,676 | $216.70 | 498 |
| 2022 Q1 | 72,872,144 | $17,721,802,608 | -$89,850,028 | $243.22 | 500 |
| 2021 Q4 | 72,834,119 | $22,515,024,773 | -$9,217,914 | $309.70 | 536 |
| 2021 Q3 | 72,953,264 | $19,117,236,220 | +$3,665,800,590 | $262.02 | 499 |
| 2021 Q2 | 59,050,843 | $12,210,645,017 | +$1,788,506,723 | $206.71 | 441 |
| 2021 Q1 | 50,406,039 | $9,899,558,894 | +$748,154,919 | $196.37 | 420 |
| 2020 Q4 | 46,561,126 | $9,083,752,864 | +$35,609,160 | $194.98 | 413 |
| 2020 Q3 | 46,209,890 | $8,832,855,052 | +$25,561,020 | $191.09 | 382 |
| 2020 Q2 | 46,091,133 | $7,767,252,496 | +$183,568,059 | $168.46 | 374 |
| 2020 Q1 | 44,999,508 | $6,119,126,271 | -$186,022,873 | $136.00 | 359 |
| 2019 Q4 | 46,301,787 | $7,974,204,313 | -$90,528,350 | $172.23 | 362 |
| 2019 Q3 | 47,008,539 | $6,925,807,637 | +$177,734,429 | $147.34 | 354 |
| 2019 Q2 | 45,774,902 | $7,047,510,644 | -$154,748,553 | $153.97 | 337 |
| 2019 Q1 | 46,912,029 | $6,407,290,429 | -$68,928,991 | $136.58 | 349 |
| 2018 Q4 | 47,438,508 | $6,138,857,631 | +$7,507,116 | $129.21 | 343 |
| 2018 Q3 | 47,267,151 | $7,266,088,087 | -$114,468,368 | $153.75 | 356 |
| 2018 Q2 | 45,818,487 | $6,070,413,679 | +$8,377,361 | $132.53 | 331 |
| 2018 Q1 | 47,789,560 | $5,645,794,281 | -$89,018,062 | $118.14 | 328 |
| 2017 Q4 | 49,052,442 | $5,501,477,203 | -$4,319,508 | $112.15 | 332 |
| 2017 Q3 | 49,059,343 | $5,586,751,399 | -$90,896,907 | $113.88 | 295 |
| 2017 Q2 | 50,104,754 | $4,899,893,472 | -$30,804,098 | $97.79 | 277 |
| 2017 Q1 | 51,137,811 | $4,077,477,874 | +$108,607,856 | $79.72 | 269 |
| 2016 Q4 | 50,088,236 | $3,767,269,375 | -$119,691,244 | $75.20 | 275 |
| 2016 Q3 | 51,791,151 | $4,005,643,791 | -$928,250 | $77.37 | 255 |
| 2016 Q2 | 51,507,683 | $3,606,568,656 | +$29,947,252 | $70.01 | 266 |
| 2016 Q1 | 52,093,461 | $3,906,487,789 | +$21,335,891 | $75.10 | 265 |
| 2015 Q4 | 51,835,693 | $4,027,461,323 | +$17,387,942 | $77.70 | 264 |
| 2015 Q3 | 51,760,214 | $3,673,367,423 | -$50,458,333 | $70.97 | 269 |
| 2015 Q2 | 53,110,709 | $3,574,333,562 | +$222,399,752 | $67.30 | 246 |
| 2015 Q1 | 50,235,833 | $3,540,817,272 | +$27,605,132 | $70.53 | 237 |
| 2014 Q4 | 49,995,738 | $2,551,293,607 | -$196,497,255 | $50.99 | 224 |
| 2014 Q3 | 53,557,253 | $3,065,025,724 | -$51,357,601 | $57.23 | 221 |
| 2014 Q2 | 54,749,410 | $2,578,953,630 | -$22,129,862 | $47.11 | 206 |
| 2014 Q1 | 55,494,265 | $2,637,899,743 | -$22,698,370 | $47.55 | 195 |