ICON plc (ICLR)
Nasdaq: ICLR · Services-Commercial Physical & Biological Research · Dublin 18, IE · filing with the SEC since 2001
Who owns ICON plc
As filed with the SECHolders of 5% or more
5
Artisan Partners Asset Management Inc. holds 10.9% of Ordinary Shares, as its SCHEDULE 13G/A filed Mar 6, 2026 says.
Directors and officers
13
report now, of 13 people on the record since 2026. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 5 named at left.
Holders of 5% or moreshare of the class, as filed
Artisan Partners Asset Management Inc.
SCHEDULE 13G/A · filed Mar 6, 2026 · Ordinary Shares · 9% in Aug 12, 2025
Wellington Management Group LLP
SCHEDULE 13G/A · filed May 15, 2026 · Common Stock · 6% in Nov 12, 2025
Invesco LTD
SCHEDULE 13G/A · filed Aug 13, 2026 · Common Stock · 5.1% in May 6, 2026
Fmr LLC
SCHEDULE 13G/A · filed Aug 6, 2026 · COMMON STOCK · 5.5% in May 6, 2026
Harris Associates L P
SCHEDULE 13G · filed May 15, 2026 · Ordinary shares, par value 0.06 euros
WCM Investment Management, LLC
SCHEDULE 13G/A · filed Jul 3, 2025 · Common Stock · reported falling below 5%
Orbis Investment Management Ltd
SCHEDULE 13G/A · filed May 15, 2026 · Common Stock · reported falling below 5%, from 5.5% in Feb 17, 2026
What ICLR reports owning in othersstakes of 5% or more, and other ties
Other ties the annual report names
KCR S.A Group
A company bought · acquisition · Aug 2024 · owns, named in the 20-F filed May 27, 2026
HumanFirst Inc
A company bought · acquisition · Dec 2023 · owns, named in the 20-F filed May 27, 2026
Biotel Research LLC
A company bought · acquisition · Sep 2023 · owns, named in the 20-F filed May 27, 2026
Oncacare
A company bought · acquisition · Apr 2023 · owns, named in the 20-F filed May 27, 2026
PRA Health Sciences, Inc
A company bought · acquisition · owns, named in the 20-F filed May 27, 2026
Insider tradesForm 4
58sales
0purchases
0sales on a scheduled plan
10people selling
$6.2Msold, in dollars
$0bought, in dollars
Open-market trades on Form 4 from Nov 4, 2025 to Nov 4, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Nov 4, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window10 of 13 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Balfe Barry Edward | Chief Executive Officer | 7 | $1.1M | 0 | 0 | $0 |
| Murray Ciaran | director | 5 | $1.1M | 0 | 0 | $0 |
| Climax John Dr | director | 5 | $1.0M | 0 | 0 | $0 |
| Murphy Ronan Martin | director | 5 | $1.0M | 0 | 0 | $0 |
| Clerkin Nigel Bernard John | Chief Financial Officer | 9 | $700,000 | 0 | 0 | $0 |
| Mccague Eugene Pacelli | director | 5 | $700,000 | 0 | 0 | $0 |
| O'Neill Julie | director | 4 | $200,000 | 0 | 0 | $0 |
| Lyons Emer | Chief Accounting Officer | 10 | $100,000 | 0 | 0 | $0 |
| Grais Linda | director | 4 | $100,000 | 0 | 0 | $0 |
| Whitaker Anne Clem | director | 4 | $100,000 | 0 | 0 | $0 |