Anthony P. J. Smurfit - 13 Feb 2026 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 Smurfit)
Issuer symbol: SW
Transactions as of: 13 Feb 2026
Net transactions value: -$568,705
Form type: 4
Filing time: 17 Feb 2026, 12:44:55 UTC
Previous filing: 19 Dec 2025
Next filing: 20 Feb 2026
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, IRELAND	/s/ Ciara O'Riordan (attorney-in-fact for Anthony Smurfit)	17 Feb 2026	0001133264

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	SW	Ordinary Shares	Options Exercise	$0	+100,484	+6.4%	$0.000000	1,670,621	13 Feb 2026	Direct	F1
transaction	SW	Ordinary Shares	Options Exercise	$0	+23,049	+1.4%	$0.000000	1,693,670	13 Feb 2026	Direct	F2
transaction	SW	Ordinary Shares	Tax liability	$568,705	-11,060	-0.65%	$51.42	1,682,610	13 Feb 2026	Direct	F3
holding	SW	Ordinary Shares						1,000	13 Feb 2026	See footnote	F4

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 (DBP)	Options Exercise	$0	-23,049	-50%	$0.000000	23,050	13 Feb 2026	Ordinary Shares	23,049	$0.000000	Direct	F5
transaction	SW	Restricted Stock Units (PSP)	Options Exercise	$0	-100,484	-55%	$0.000000	82,996	13 Feb 2026	Ordinary Shares	100,484	$0.000000	Direct	F5

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Reflects the acquisition of common stock upon vesting and settlement of performance share plan awards. Each performance share plan award represents a right to receive one ordinary share of Smurfit Westrock plc upon vesting and settlement of the applicable award.
F2	Reflects the acquisition of common stock upon vesting and settlement of deferred bonus plan awards. Each deferred bonus plan award represents a right to receive one ordinary share of Smurfit Westrock plc upon vesting and settlement of the applicable award.
F3	Reflects ordinary shares of Smurfit Westrock plc withheld to satisfy the reporting persons tax withholding obligation upon vesting and settlement of deferred bonus plan awards and performance share plan awards.
F4	These shares are held by the Reporting Person's child who is part of the Reporting Person's household. The Reporting Person disclaims ownership of the shares held by this child, and this report is not an admission that the Reporting Person is the beneficial owner of these shares for the purposes of Section 16 or for any other purposes.
F5	Reflects the vesting and settlement of deferred bonus plan awards granted on 22 September 2023 and performance share plan awards granted on 22 September 2023.