Security Snapshot

ICON PLC - Ordinary Shares (ICLR) Institutional Ownership

CUSIP: G4705A100

13F Institutional Holders and Ownership History from Q1 2014 to Q1 2026

Latest Period

Q4 2025

Institutions Reporting

503

Shares (Excl. Options)

77,297,606

Price

$182.22

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Type / Class
Equity / Ordinary Shares
Symbol
ICLR on Nasdaq
Shares outstanding
76,709,202
Price per share
$110.66
All holders as of 31 Dec 2025
Q4 2025
Total 13F shares
77,297,606
Total reported value
$14,090,662,223
% of total 13F portfolios
0.02%
Share change
+3,010,415
Value change
+$564,066,183
Number of holders
503
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

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Quick Takeaways

  • ICLR - ICON PLC - Ordinary Shares is tracked under CUSIP G4705A100.
  • 503 institutions reported positions in Q4 2025.
  • 4 significant owners is listed from Schedule 13D/13G reporting.

What Changed

  • Holder count moved from 503 to 34 between Q4 2025 and Q1 2026.
  • Reported value moved from $14,090,662,223 to $249,767,478.

Why This Matters

  • You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
  • 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.

Source Evidence

Source: SEC Form 13F

Latest holder context comes from 503 institutions filings for Q4 2025.

Open SEC Evidence

Investment Quick Answers

What is CUSIP G4705A100?
CUSIP G4705A100 identifies ICLR - ICON PLC - Ordinary Shares in SEC 13F datasets.

Where can I see the latest institutional holders?
Review the Q4 2025 holders report and the ownership history table below.

Significant Owners of ICON PLC - Ordinary Shares (ICLR) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
Artisan Partners Limited Partnership 11% +21% $669,573,144 +$94,208,755 8,361,303 +16% Artisan Partners Asset Management Inc. 27 Feb 2026
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, 503 institutional investors reported holding 77,297,606 shares of ICON PLC - Ordinary Shares (ICLR). This represents 101% of the company’s total 76,709,202 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of ICON PLC - Ordinary Shares (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 3.8% 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

Institutional Holders of ICON PLC - Ordinary Shares (ICLR) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2026 Q1 2,256,996 $249,767,478 +$220,272,468 $110.66 34
2025 Q4 77,297,606 $14,090,662,223 +$564,066,183 $182.22 503
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

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