$ICLR

$183.78 -$1.49 (0.8%) Close

$ICLR Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 76.6M shares outstanding

Who owns ICLR?

By type of holder

Institutions 100.0% Insiders 0.0% Everyone else 0.0%

Concentration Top 10 holders own 55.3%

Artisan Partners Limited Partnership 11.3% · Wellington Management Group LLP 7.0%

Institutional ownership

100.0%

+0.7 pts vs last qtr

Institutional holders

421

+4 vs last qtr

Net shares bought

+4.2M

by institutions in Q2 2026

New / sold out

87 / 83

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Invesco Ltd. +1.4M
Greenhaven Associates Inc +1.1M

Biggest sellers in Q2 2026

Madison Avenue Partners, LP SOLD OUT −1.3M
Holocene Advisors, LP SOLD OUT −840.8K

Who is planning to sell?

Notices of proposed sale, last 12 months

$4.65M

15 notices from 9 people

Shares covered

28.6K

0.04% of the company

Arranged in advance

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

John Climax Director $1.01M
Ronan Martin Murphy Director $1.01M

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2016–FY2025

+40.0%

+3.81% a year

Each share's claim on the business

−28.6%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

$2.04B vs $564M

over 10 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years46% 3–5 years4% 1–3 years34% Under 1 year16%

Quarterly turnover

16.0%

of institutional shares changed hands

Top 10 managers, median time held

5 years

Super Investors

Investment managers reporting ICLR on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
AP Artisan Partners Limited Partnership	8.6M	11.28%	+357.5K (+4.3%)	2024	2.4%
Shares held by quarter Peak holding8.6M (Q2'26) Change over 8 quarters+8.6M Share of the company11.280% Artisan Partners Limited Partnership's full portfolio →
WM Wellington Management Group LLP	5.3M	6.95%	−593.0K (−10.0%)	≤2021	0.2%
Shares held by quarter Peak holding5.9M (Q1'26) Change over 8 quarters+2.2M Share of the company6.950% Wellington Management Group LLP's full portfolio →

Artisan Partners Limited Partnership

8.6M

% of company

11.28%

Change vs last qtr

+357.5K (+4.3%)

Held since

2024

Wellington Management Group LLP

5.3M

% of company

6.95%

Change vs last qtr

−593.0K (−10.0%)

Held since

≤2021

28 more super investors behind a free account

See every manager holding ICON PLC, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting ICLR on Form N-PORT; together they hold 14.4% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
IS Invesco Small Cap Value Fund AIM Sector Funds (Invesco Sector Funds)	$171M	1.0M	1.36%	1.54%	July 31, 2026
VW Vanguard Windsor Fund Vanguard Windsor Funds	$154M	943.2K	1.23%	0.61%	July 31, 2026

Invesco Small Cap Value Fund

AIM Sector Funds (Invesco Sector Funds)

Position value

$171M

% of company

1.36%

% of the fund

1.54%

As of

July 31, 2026

Vanguard Windsor Fund

Vanguard Windsor Funds

Position value

$154M

% of company

1.23%

% of the fund

0.61%

As of

July 31, 2026

23 more funds behind a free account

See every fund holding ICON PLC and how much of the fund the position is.

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