Barry Edward Balfe - 18 Mar 2026 Form 3 Insider Report for ICON PLC (ICLR)

Role
Chief Executive Officer, Director
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, 16:34:40 UTC
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Balfe Barry Edward Chief Executive Officer, Director C/O ICON PLC, SOUTH COUNTY BUSINESS PARK, LEOPARDSTOWN, DUBLIN, IRELAND /s/ Erina Joan Fox, as Attorney-in-Fact 18 Mar 2026 0002058614

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
holding ICLR Ordinary Shares 4,458 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 Stock Options 18 Mar 2026 Ordinary Shares 886 $159.33 Direct F1
holding ICLR Restricted Share Units 18 Mar 2026 Ordinary Shares 28,986 Direct F2, F3
holding ICLR Restricted Share Units 18 Mar 2026 Ordinary Shares 7,699 Direct F3, F4
holding ICLR Stock Options 18 Mar 2026 Ordinary Shares 4,480 $233.88 Direct F5
holding ICLR Stock Options 18 Mar 2026 Ordinary Shares 3,405 $231.68 Direct F6
holding ICLR Restricted Share Units 18 Mar 2026 Ordinary Shares 3,047 Direct F3, F7
holding ICLR Stock Options 18 Mar 2026 Ordinary Shares 15,328 $185.18 Direct F8
holding ICLR Stock Options 18 Mar 2026 Ordinary Shares 2,131 $174.96 Direct F1
holding ICLR Stock Options 18 Mar 2026 Ordinary Shares 4,914 $325.51 Direct F9
holding ICLR Restricted Share Units 18 Mar 2026 Ordinary Shares 728 Direct F3, F10
holding ICLR Restricted Share Units 18 Mar 2026 Ordinary Shares 500 Direct F3, F11
holding ICLR Restricted Share Units 18 Mar 2026 Ordinary Shares 1,664 Direct F3, F12
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Fully vested.
F2 These restricted share units were granted on October 31, 2025 and vest annually in three equal installments on the applicable anniversary of the grant date.
F3 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.
F4 These restricted share units were granted on May 22, 2025 and (i) 3,849 restricted share units will vest on March 6, 2027 and (ii) 3,850 restricted share units will vest on March 6, 2028.
F5 These stock options were granted on March 3, 2023. Of these options, 1,119 vested in 2025 and in 2026, 1,119 will vest in 2027 and 1,123 will vest in 2028, in each case on the applicable anniversary of the grant date.
F6 These stock options were granted on March 3, 2022. Of these options, 1,135 vested in 2025 and 2026 and 1,135 will vest in 2027, in each case on the applicable anniversary of the grant date.
F7 These restricted share units were granted on March 6, 2025 and (i) 1,523 restricted share units will vest on March 6, 2027 and (ii) 1,524 restricted share units will vest on March 6, 2028.
F8 These stock options were granted on March 6, 2025. Of these options, 3,832 vested in 2026 and 3,832 will vest in 2027, 2028 and 2029, in each case on the applicable anniversary of the grant date.
F9 These stock options were granted on March 3, 2024. Of these options, 1,228 vested in 2025 and 2026, 1,228 will vest in 2027 and 1,230 will vest in 2028, in each case on the applicable anniversary of the grant date.
F10 These restricted share units were granted on August 7, 2023 and 728 restricted share units will vest on August 7, 2026.
F11 These restricted share units were granted on March 3, 2024 and 500 restricted share units will vest on March 3, 2027.
F12 These restricted share units were granted on March 3, 2024 and will vest in full on March 3, 2027.

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.