ANTHONY P. J. SMURFIT - 18 Sep 2025 Form 4 Insider Report for Smurfit Westrock plc (SW)

Role
President and Group CEO, Director
Signature
/s/ Ciara O'Riordan, attorney-in-fact for Anthony PJ Smurfit
Issuer symbol
SW
Transactions as of
18 Sep 2025
Net transactions value
$0
Form type
4
Filing time
22 Sep 2025, 09:21:42 UTC
Previous filing
23 Jun 2025
Next filing
19 Dec 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
SMURFIT ANTHONY P J President and Group CEO, Director BEECH HILL, CLONSKEAGH, DUBLIN 4, IRELAND /s/ Ciara O'Riordan, attorney-in-fact for Anthony PJ Smurfit 22 Sep 2025 0001133264

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction SW Ordinary Shares Award $0 +636 +0.04% $0.000000 1,570,403 18 Sep 2025 Direct F1, F2

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
transaction SW Restricted Stock Units (PSP) Award $0 +1,751 +0.97% $0.000000 181,457 18 Sep 2025 Ordinary Shares 1,751 Direct F1, F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 In accordance with the terms of the applicable outstanding restricted stock unit award, additional restricted stock units accrued as dividend equivalents in connection with the Issuer's payment of a quarterly dividend of $0.4308 per ordinary share. Such additional restricted stock units are subject to the same terms and conditions as the underlying award. Each restricted stock unit represents the right to receive one ordinary share.
F2 Includes 65,858 restricted stock units which are scheduled to vest in three equal annual installments beginning on March 11, 2026, the first anniversary of the grant date.
F3 The 181,457 restricted stock units vest and are settled as follows:(i) 99,376 restricted stock units in February 2026, (ii) and 82,081 restricted stock units in February 2027.

Remarks:

Exhibit 24.1 - Power of attorney