Nigel Bernard John Clerkin - 18 Mar 2026 Form 3 Insider Report for ICON PLC (ICLR)

Source evidence Original filing metadata and source links for verification. 3 source fields
SEC form
3
Accepted by SEC
18 Mar 2026, 16:19:42 UTC
Source filing
View source filing
Reporting owner 1 detail
Reporting owner signature
/s/ Erina Joan Fox, as Attorney-in-Fact

Key filing fact

Nigel Bernard John Clerkin filed Form 3 for ICON PLC (ICLR) on 18 Mar 2026.

Key facts

  • This page summarizes Nigel Bernard John Clerkin's Form 3 filing for ICON PLC (ICLR).
  • 0 reported transactions and 4 derivative rows are listed below.
  • Accepted by SEC: 18 Mar 2026, 16:19.

Change

  • No earlier filing in this sequence is available for direct comparison.
  • Current net transaction value: $0.

Research use

  • This tells you what this filing adds before you inspect full transaction and derivative tables.
  • You can trace every row back to the original SEC filing document.

Evidence

Official SEC source

Ownership activity is grounded in SEC Form 3 disclosures.

View source filing

Reporting Owners (1)

CIK 0002085465 Primary reporting owner

Clerkin Nigel Bernard John

Relationship
Chief Financial Officer
Address
C/O ICON PLC, SOUTH COUNTY BUSINESS PARK, LEOPARDSTOWN, DUBLIN, IRELAND
Signature
/s/ Erina Joan Fox, as Attorney-in-Fact
Signature date
18 Mar 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

ICLR holding

Ordinary Shares

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
3,855
Date
18 Mar 2026
Ownership
Direct

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

ICLR holding Derivative

Restricted Share Units

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
Date
18 Mar 2026
Ownership
Direct
Underlying class
Ordinary Shares
Underlying amount
10,127
Exercise price
Footnotes
F1, F2
ICLR holding Derivative

Stock Options

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
Date
18 Mar 2026
Ownership
Direct
Underlying class
Ordinary Shares
Underlying amount
9,241
Exercise price
$185.18
Footnotes
F3
ICLR holding Derivative

Restricted Share Units

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
Date
18 Mar 2026
Ownership
Direct
Underlying class
Ordinary Shares
Underlying amount
5,558
Exercise price
Footnotes
F2, F4
ICLR holding Derivative

Restricted Share Units

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
Date
18 Mar 2026
Ownership
Direct
Underlying class
Ordinary Shares
Underlying amount
2,755
Exercise price
Footnotes
F2, F5
* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 5 footnotes

Footnote F1

These restricted share units were granted on May 22, 2025 and (i) 3,375 restricted share units will vest the date of payment of withholding taxes in 2026, (ii) 3,375 restricted share units will vest on March 6, 2027, and (iii) 3,377 restricted share units will vest on March 6, 2028.

Footnote F2

Each restricted share unit represents a contingent right to receive one ordinary share of the Issuer upon vesting, with a nominal conversion price equal to the par value of the ordinary shares (EUR 0.06) per underlying share automatically deducted from the reporting person's pay in connection with vesting.

Footnote F3

These stock options were granted on March 6, 2025. Of these options, 2,310 vested in 2026, 2,310 vest in each of 2027 and 2028, and 2,311 vest in 2029, in each case on the applicable anniversary of the grant date.

Footnote F4

These restricted share units were granted on October 31, 2024 and (i) 2,778 restricted share units will vest on October 31, 2026 and (ii) 2,780 restricted share units will vest on October 31, 2027.

Footnote F5

These restricted share units were granted on March 6, 2025 and (i) 918 restricted share units will vest the date of payment of withholding taxes in 2026, (ii) 918 restricted share units will vest on March 6, 2027, and (iii) 919 restricted share units will vest on March 6, 2028.

SEC remarks

Due to the issuer's status as a foreign private issuer pursuant to Rule 3a12-3(b) under the Securities Exchange Act of 1934 (the "Act"), the reporting person's transactions in the issuer's equity securities are exempt from Sections 16(b) and 16(c) of the Act. Exhibit 24 - Power of Attorney.

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