Icon ICLR Institutional Ownership

NASDAQ ICLR

$168.51 +4.17 (+2.54%)

As of: Oct 14, 2026 · 1:17 PM EDT

Institutions by Trading Activity

421 Institutions

Increased 233 55.3%

Unchanged 50 11.9%

Reduced 138 32.8%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

—

13F totals exceed reported shares outstanding

Shares Held by Institutions

80.25Mn

of 78.42Mn outstanding

▲+5.53% QoQ

Shares Outstanding

78.42Mn

Institutional Investors

421

filed 13F for Jun 2026

▲+7 vs prior quarter

Net Shares Added (QoQ)

+4.21Mn

accumulated since last quarter

Value of Holdings

$13.19Bn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Updated Oct 11, 2026

Icon Plc (NASDAQ:ICLR) counted 421 institutional investors among its 13F-reported shareholders for the quarter ended June 30, 2026.

Total shares held in Icon rose 5.53% from Q1 2026, while the number of holders fell 12.84% from Q2 2025.
Looking at the 421 holders of ICLR individually, 233 added to their positions, 138 reduced their stakes and 50 left their positions unchanged.
The aggregate institutional position in Icon was 80.25Mn shares at the end of Q2 2026, up 4.21Mn from the prior quarter and up 7.23Mn from a year earlier.
As of June 30, 2026, Artisan Partners Limited Partnership held the largest stake in Icon with 8.64Mn shares.
Among holders that already owned Icon, the biggest buyers in Q2 2026 were Invesco Ltd. (+1.39Mn shares), Greenhaven Associates Inc (+1.1Mn shares), FMR LLC (+1.1Mn shares), Ameriprise Financial Inc (+877.36K shares) and Maple Rock Capital Partners Inc. (+864.3K shares).
Holders that trimmed the most shares of Icon in Q2 2026 while keeping a position were Massachusetts Financial Services Co (-622.65K shares), Wellington Management Group LLP (-592.98K shares), First Pacific Advisors, LP (-384.55K shares), Principal Financial Group Inc (-360.8K shares) and Brandes Investment Partners, LP (-249.28K shares).
Per Business Quant data, the 10 largest holders of Icon at the end of Q2 2026 were Artisan Partners Limited Partnership (8.64Mn shares), Wellington Management Group LLP (5.32Mn shares), FMR LLC (5.27Mn shares), Invesco Ltd. (5.26Mn shares), Harris Associates L.P. (4.47Mn shares), Brave Warrior Advisors, LLC (3.15Mn shares), Greenhaven Associates Inc (3.1Mn shares), Principal Financial Group Inc (2.95Mn shares), Massachusetts Financial Services Co (2.11Mn shares) and Ruane, Cunniff & Goldfarb L.P. (2.05Mn shares).

Form 13F Holdings

423 Institutional Holders

Report period 30 Jun, 2026

Total shares held 80.25Mn

Of outstanding —

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	Artisan Partners Limited Partnership	0001466153	8,636,406	11.01%	▲357,461	+4.32%	$1.50Bn
2	WELLINGTON MANAGEMENT GROUP LLP	0000902219	5,320,054	6.78%	▼592,983	-10.03%	$924.15Mn
3	FMR LLC	0000315066	5,271,321	6.72%	▲1,097,315	+26.29%	$915.68Mn
4	Invesco Ltd.	0000914208	5,264,236	6.71%	▲1,385,367	+35.72%	$914.45Mn
5	HARRIS ASSOCIATES L P	0000813917	4,468,146	5.70%	▲116,829	+2.68%	$776.16Mn
6	Brave Warrior Advisors, LLC	0001553733	3,153,308	4.02%	▲156,497	+5.22%	$547.76Mn
7	GREENHAVEN ASSOCIATES INC	0000846222	3,100,615	3.95%	▲1,098,204	+54.84%	$538.61Mn
8	Principal Financial Group Inc	0001126328	2,950,974	3.76%	▼360,797	-10.89%	$512.61Mn
9	MASSACHUSETTS FINANCIAL SERVICES CO /MA/	0000912938	2,105,171	2.68%	▼622,653	-22.83%	$369.45Mn
10	Ruane, Cunniff & Goldfarb L.P.	0001720792	2,048,087	2.61%	▲413,476	+25.30%	$355.77Mn
11	Boston Partners	0001386060	1,620,730	2.07%	▲785,591	+94.07%	$281.40Mn
12	Trinity Street Asset Management LLP	0001592579	1,535,462	1.96%	▲327,314	+27.09%	$266.73Mn
13	ALLIANCEBERNSTEIN L.P.	0001109448	1,378,196	1.76%	▲33,601	+2.50%	$152.51Mn
14	D. E. Shaw & Co., Inc.	0001009207	1,357,143	1.73%	▲158,588	+13.23%	$235.75Mn
15	DIMENSIONAL FUND ADVISORS LP	0000354204	1,270,230	1.62%	▲481,402	+61.03%	$220.65Mn
16	EARNEST PARTNERS LLC	0001102578	1,242,639	1.58%	▲356,849	+40.29%	$215.86Mn
17	Maple Rock Capital Partners Inc.	0001658363	1,199,600	1.53%	▲864,300	+257.77%	$208.38Mn
18	1832 Asset Management L.P.	0000944388	1,194,860	1.52%	▲1,620	+0.14%	$207.56Mn
19	BRANDES INVESTMENT PARTNERS, LP	0001015079	1,185,774	1.51%	▼249,279	-17.37%	$205.98Mn
20	Capital World Investors	0001422849	1,106,056	1.41%	▲1,225	+0.11%	$192.13Mn

Showing 1 to 20 of 423 holders