Anne Clem Whitaker - 10 Aug 2026 Form 4 Insider Report for ICON PLC (ICLR)

Reporting relationship: Director
Issuer ticker: ICLR
Reported as of: 10 Aug 2026
Net transaction value: -$138,168
SEC form: 4
Accepted by SEC: 12 Aug 2026, 17:02:27 UTC
Prior SEC filing: 18 Mar 2026
Source filing: View source filing
Reporting owner signature: /s/ Erina Joan Fox, as Attorney-in-Fact

Key filing fact

Anne Clem Whitaker filed Form 4 for ICON PLC (ICLR) on 12 Aug 2026.

Key facts

This page summarizes Anne Clem Whitaker's Form 4 filing for ICON PLC (ICLR).
7 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 12 Aug 2026, 17:02.

Change

Previous filing in this sequence was filed on 18 Mar 2026.
Current net transaction value: -$138,168.

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

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001593283 Primary reporting owner

Whitaker Anne Clem

Relationship: Director
Address: C/O ICON PLC, SOUTH COUNTY BUSINESS PARK, LEOPARDSTOWN, DUBLIN, IRELAND
Signature: /s/ Erina Joan Fox, as Attorney-in-Fact
Signature date: 12 Aug 2026

Reported non-derivative transactions

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

ICLR transaction

Ordinary Shares

Options Exercise

Transaction value
Shares: +1,732
Change %
Price
Shares after: 1,732
Date: 10 Aug 2026
Ownership: Direct
Footnotes: F1, F2

ICLR transaction

Ordinary Shares

Sale

Transaction value: $14,319
Shares: -88
Change %: -5.1%
Price: $162.72
Shares after: 1,644
Date: 11 Aug 2026
Ownership: Direct
Footnotes: F3, F4

ICLR transaction

Ordinary Shares

Sale

Transaction value: $15,722
Shares: -96
Change %: -5.8%
Price: $163.77
Shares after: 1,548
Date: 11 Aug 2026
Ownership: Direct
Footnotes: F3, F5

ICLR transaction

Ordinary Shares

Sale

Transaction value: $97,037
Shares: -590
Change %: -38%
Price: $164.47
Shares after: 958
Date: 11 Aug 2026
Ownership: Direct
Footnotes: F3, F6

ICLR transaction

Ordinary Shares

Sale

Transaction value: $11,089
Shares: -67
Change %: -7%
Price: $165.51
Shares after: 891
Date: 11 Aug 2026
Ownership: Direct
Footnotes: F3, F7

Reported derivative securities

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

ICLR transaction Derivative

Restricted Share Units

Options Exercise

Transaction value
Shares: -1,732
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 10 Aug 2026
Ownership: Direct
Underlying class: Ordinary Shares
Underlying amount: 1,732
Exercise price
Footnotes: F1, F2

ICLR transaction Derivative

Restricted Share Units

Award

Transaction value
Shares: +1,324
Change %
Price: $0.000000^*
Shares after: 1,324
Date: 10 Aug 2026
Ownership: Direct
Underlying class: Ordinary Shares
Underlying amount: 1,324
Exercise price
Footnotes: F2, F8

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 8 footnotes

Footnote F1

These restricted share units were granted on May 22, 2025 and vested on August 10, 2026.

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

The sale reported represents shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting and settlement of restricted share units. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person.

Footnote F4

The price reported in Column 4 is a weighted average price. These shares were sold in multiple aggregated transactions at prices within the range of $162.08 to $163.0799, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range(s) set forth in this footnote of this Form 4.

Footnote F5

The price reported in Column 4 is a weighted average price. These shares were sold in multiple aggregated transactions at prices within the range of $163.15 to $164.1499, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range(s) set forth in this footnote of this Form 4.

Footnote F6

The price reported in Column 4 is a weighted average price. These shares were sold in multiple aggregated transactions at prices within the range of $164.16 to $165.1599, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range(s) set forth in this footnote of this Form 4.

Footnote F7

The price reported in Column 4 is a weighted average price. These shares were sold in multiple aggregated transactions at prices within the range of $165.16 to $166.1599, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range(s) set forth in this footnote of this Form 4.

Footnote F8

These restricted share units were granted on August 10, 2026 and are scheduled to vest on May 22, 2027.

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.