Irene Page - 13 Feb 2026 Form 4 Insider Report for Smurfit Westrock plc (SW)

Role: Chief Accounting Officer
Signature: /s/ Ciara O'Riordan, attorney-in-fact for Irene Page
Issuer symbol: SW
Transactions as of: 13 Feb 2026
Net transactions value: -$593,490
Form type: 4
Filing time: 17 Feb 2026, 12:45:12 UTC
Previous filing: 19 Dec 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Page Irene	Chief Accounting Officer	BEECH HILL, CLONSKEAGH, DUBLIN 4, IRELAND	/s/ Ciara O'Riordan, attorney-in-fact for Irene Page	17 Feb 2026	0002029262

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	SW	Ordinary Shares	Options Exercise	$0	+16,808	+34%	$0.000000	66,240	13 Feb 2026	Direct	F1
transaction	SW	Ordinary Shares	Options Exercise	$0	+5,301	+8%	$0.000000	71,541	13 Feb 2026	Direct	F2
transaction	SW	Ordinary Shares	Tax liability	$593,490	-11,542	-16%	$51.42	59,999	13 Feb 2026	Direct	F3

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)	Options Exercise	$0	-16,808	-55%	$0.000000	13,884	13 Feb 2026	Ordinary Shares	16,808	$0.000000	Direct	F4
transaction	SW	Restricted Stock Units (DBP)	Options Exercise	$0	-5,301	-52%	$0.000000	4,805	13 Feb 2026	Ordinary Shares	5,301	$0.000000	Direct	F4

* 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	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.