MaryLynn FergusonMchugh - Sep 18, 2025 Form 4 Insider Report for Smurfit Westrock plc (SW)

Role
Director
Signature
/s/ Ciara O'Riordan, attorney-in-fact for MaryLynn FergusonMcHugh
Stock symbol
SW
Transactions as of
Sep 18, 2025
Transactions value $
$0
Form type
4
Date filed
9/22/2025, 09:26 AM
Previous filing
Jun 23, 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
FergusonMchugh MaryLynn Director BEECH HILL, CLONSKEAGH, DUBLIN 4, IRELAND /s/ Ciara O'Riordan, attorney-in-fact for MaryLynn FergusonMcHugh 2025-09-22 0001613133

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction SW Ordinary Shares Award $0 +41 +0.67% $0.00 6.13K Sep 18, 2025 Direct F1, F2
* 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 outstanding restricted stock units, 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 4,323 restricted stock units which will vest on the earlier of (i) May 2, 2026, or (ii) the date of the next annual meeting of Smurfit Westrock plc's stockholders.

Remarks:

Exhibit 24.1 Power of Attorney