Icon ICLR Insider Ownership

NASDAQ ICLR

$203.77 -1.37 (-0.67%)

At close: Nov 3, 2026 · 4:00 PM EST

Insider Holdings by Owner

52.44K Shares

Ciaran Murray20.45K39.0%

Linda Grais6.16K11.8%

Nigel Bernard John Clerkin5.88K11.2%

Barry Edward Balfe4.80K9.2%

Ronan Martin Murphy3.85K7.3%

Other insiders (5)11.29K21.5%

Insider Ownership Statistics

as of 30 Sep, 2026

Insider Ownership

0.066%

Shares Held by Insiders

51.45K

filed for Sep 2026

Shares Outstanding

78.42Mn

78,423,675 shares

Direct Holdings

51.45K

Indirect: 0

Net Open-Market Trades

-23.71K

net sold · -$4.04Mn in Sep 2026

Insiders Holding Shares

with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Open-Market Insider Trades

Bought Sold

Latest quarter —

Net over range —

Net-buying quarters —

Insider Ownership Summary

Updated Oct 27, 2026

Over the past year, ICLR insiders sold $3.68 million of stock (21.49K shares) on the open market and bought none.

Counted by insider, open-market selling of ICLR stock in the past 12 months came from 9 insiders, with no insider buying.
John Climax (Director) was ICLR's largest open-market seller in the past 12 months, with $1.01 million of sales (5.85K shares); the latest was on September 16, 2026.
The newest open-market trade among Icon insiders came on October 23, 2026, when Emer Lyons (Chief Accounting Officer) made a sale of 272 shares for $49,604.
Outside the open market, Icon insiders acquired 23.2K shares through option exercises and conversions over the past 12 months.
According to Business Quant data, insiders at Icon reported 52.44K shares in total in their latest Form 4 filings.
None of the 52.44K shares held by Icon insiders is held through trusts, partnerships or family members; all are direct holdings.
The insider holdings in Icon belong to 10 insiders who have reported on Form 4 within the past two years.
ICLR's largest insider holders by reported holdings are Ciaran Murray (Director, 20.45K shares), Linda Grais (Director, 6.16K shares) and Nigel Bernard John Clerkin (Chief Financial Officer, 5.88K shares).
Ciaran Murray holds 39.00% of the combined insider position in Icon.
In the past year, 12 insiders of Icon submitted 19 Form 4 filings reporting trades, awards or other transactions.
The insider data for ICLR reflects Form 4 filings through October 26, 2026.

Form 4 Holdings

Insiders Holding ICLR

Insiders 10

Shares held 52.44K

Of outstanding 0.067%

#	Insider	Position	Direct	Total	Share of Insiders	Last Filed
1	Ciaran Murray	Director	20,452	20,452	39.0%	12 Aug, 2026
2	Linda Grais	Director	6,162	6,162	11.8%	12 Aug, 2026
3	Nigel Bernard John Clerkin	Chief Financial Officer	5,881	5,881	11.2%	12 Aug, 2026
4	Barry Edward Balfe	Chief Executive Officer	4,804	4,804	9.2%	11 Aug, 2026
5	Ronan Martin Murphy	Director	3,847	3,847	7.3%	18 Sep, 2026
6	Eugene Pacelli Mccague	Director	3,811	3,811	7.3%	18 Sep, 2026
7	Julie O'Neill	Director	3,515	3,515	6.7%	12 Aug, 2026
8	John Dr Climax	Director	2,087	2,087	4.0%	18 Sep, 2026
9	Emer Lyons	Chief Accounting Officer	990	990	1.9%	26 Oct, 2026
10	Anne Clem Whitaker	Director	891	891	1.7%	12 Aug, 2026

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

90 Insider Transactions

Source SEC Form 4

Latest quarter Sep 2026

Date	Insider	Position	Transaction	Shares	Price	Value	Shares Held After	Ownership
22 Oct, 2026	Emer Lyons	Chief Accounting Officer	Acquired M	510	—	—	1,262	Direct
23 Oct, 2026	Emer Lyons	Chief Accounting Officer	Disposed S	42	$180.54	$7.58K	1,220	Direct
23 Oct, 2026	Emer Lyons	Chief Accounting Officer	Disposed S	81	$181.39	$14.69K	1,139	Direct
23 Oct, 2026	Emer Lyons	Chief Accounting Officer	Disposed S	43	$182.30	$7.84K	1,096	Direct
23 Oct, 2026	Emer Lyons	Chief Accounting Officer	Disposed S	52	$183.42	$9.54K	1,044	Direct
23 Oct, 2026	Emer Lyons	Chief Accounting Officer	Disposed S	54	$184.29	$9.95K	990	Direct
22 Oct, 2026	Emer Lyons	Chief Accounting Officer	Disposed M	510	$0.00	$0	0	Direct
17 Sep, 2026	Eugene Pacelli Mccague	Director	Acquired M	3,255	$125.74	$409.28K	7,066	Direct
16 Sep, 2026	John Dr Climax	Director	Acquired M	5,005	$125.74	$629.33K	7,092	Direct
17 Sep, 2026	Ronan Martin Murphy	Director	Acquired M	5,005	$125.74	$629.33K	8,852	Direct
16 Sep, 2026	John Dr Climax	Director	Disposed S	5,005	$175.00	$875.88K	2,087	Direct
17 Sep, 2026	Eugene Pacelli Mccague	Director	Disposed S	3,255	$175.00	$569.63K	3,811	Direct
17 Sep, 2026	Ronan Martin Murphy	Director	Disposed S	5,005	$175.00	$875.88K	3,847	Direct
17 Sep, 2026	Ronan Martin Murphy	Director	Disposed M	5,005	$0.00	$0	0	Direct
17 Sep, 2026	Eugene Pacelli Mccague	Director	Disposed M	3,255	$0.00	$0	0	Direct
16 Sep, 2026	John Dr Climax	Director	Disposed M	5,005	$0.00	$0	0	Direct
10 Aug, 2026	Emer Lyons	Chief Accounting Officer	Acquired A	5,886	$0.00	$0	5,886	Direct
10 Aug, 2026	Eugene Pacelli Mccague	Director	Acquired M	1,732	—	—	4,652	Direct
10 Aug, 2026	Ciaran Murray	Director	Acquired M	2,677	—	—	23,129	Direct
10 Aug, 2026	Kevin Francis Egan	Director	Acquired A	1,324	$0.00	$0	1,324	Direct

Showing 1 to 20 of 90 transactions