Alvaro Henao) - 18 Dec 2025 Form 4 Insider Report for Smurfit Westrock plc (SW)

Signature
/s/ Ciara O'Riordan (attorney-in-fact for Alvaro Henao)
Issuer symbol
SW
Transactions as of
18 Dec 2025
Net transactions value
$0
Form type
4
Filing time
19 Dec 2025, 11:53:50 UTC
Previous filing
22 Sep 2025
Next filing
17 Feb 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Henao Alvaro President and Chief Executive Officer, LATAM BEECH HILL, CLONSKEAGH, DUBLIN 4, IRELAND /s/ Ciara O'Riordan (attorney-in-fact for Alvaro Henao) 19 Dec 2025 0002053658

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction SW Ordinary Shares Award $0 +53 +0.11% $0.000000 49,243 18 Dec 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 +410 +1.1% $0.000000 37,256 18 Dec 2025 Ordinary Shares 410 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 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 4,882 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 37,256 restricted stock units vest and are settled as follows:(i) 18,207 restricted stock units in February 2026, (ii) and 19,049 restricted stock units in February 2027.

Remarks:

President and Chief Executive Officer, LATAM