Emer Lyons - 18 Mar 2026 Form 3 Insider Report for ICON PLC (ICLR)

Signature
/s/ Erina Joan Fox, as Attorney-in-Fact
Issuer symbol
ICLR
Transactions as of
18 Mar 2026
Net transactions value
$0
Form type
3
Filing time
18 Mar 2026, 15:46:51 UTC

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Lyons Emer Chief Accounting Officer C/O ICON PLC, SOUTH COUNTY BUSINESS PARK, LEOPARDSTOWN, DUBLIN, IRELAND /s/ Erina Joan Fox, as Attorney-in-Fact 18 Mar 2026 0002119302

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
holding ICLR Ordinary Shares 752 18 Mar 2026 Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
holding ICLR Restricted Share Units 18 Mar 2026 Ordinary Shares 791 Direct F1, F2
holding ICLR Restricted Share Units 18 Mar 2026 Ordinary Shares 510 Direct F2, F3
holding ICLR Restricted Share Units 18 Mar 2026 Ordinary Shares 983 Direct F2, F4
holding ICLR Restricted Share Units 18 Mar 2026 Ordinary Shares 2,306 Direct F2, F5
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 These restricted stock units were granted on May 22, 2024 and vest in full in one installment on October 22, 2027.
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.
F3 These restricted stock units were granted on May 22, 2023 and vest in full in one installment on October 22, 2026.
F4 These restricted stock units were granted on October 31, 2024 and (i) 491 restricted stock units will vest on October 31, 2026 and (ii) 492 restricted stock units will vest on October 31, 2027.
F5 These restricted stock units were granted on May 22, 2025 and vest in full in one installment on October 22, 2028.

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.