Form 4 for SW Smurfit Westrock

Accepted 2026-05-05 12:51:54 ET · period of report 2026-05-01 · accession 0001628280-26-030311 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X	Filed	Traded	Ticker	Insider	Title	Type	Price	Qty	Owned	ΔOwn	Value
	2026-05-05 12:51	2026-05-01	SW	Arnold Colleen F.	Dir	A - Grant	$0.00	+4,438	38.0K	+13%	$0
	2026-05-05 12:51	2026-05-01	SW	Arnold Colleen F.	Dir	F - Tax	$38.39	-2,123	35.9K	-6%	-$81.5K

Purchase Sale Sale after option exercise All abbreviations

#	Table	Security	Date	Code	A/D	Shares	Price	Owned after	Own	Exercise / expiry	Underlying	Footnotes
1	Common	Ordinary Shares	2026-05-01	A	A	4,438	$0.00	38,034.14	D	—	—	(F1) On May 1st, 2026, the Reporting Person was granted 4,438 restricted stock units (RSUs). Each RSU represents a contingent right to receive one ordinary share. The RSUs are scheduled to vest on the earlier of (i) the first anniversary of the date of grant of the RSU or (ii) the date of the next annual meeting of Smurfit Westrock plc's stockholders. (F2) Includes 27,285.136 fully vested restricted stock units that will be settled in ordinary shares following the Reporting Person's cessation of service as a member of the Issuer's board of directors in accordance with the terms of the WestRock Company 2016 Deferred Compensation Plan for Non-Employee Directors.
2	Common	Ordinary Shares	2026-05-01	F	D	2,123	$38.39	35,911.14	D	—	—	(F3) Reflects ordinary shares of Smurfit Westrock plc withheld to satisfy the Reporting Person's tax withholding obligation upon vesting and settlement of RSUs. (F2) Includes 27,285.136 fully vested restricted stock units that will be settled in ordinary shares following the Reporting Person's cessation of service as a member of the Issuer's board of directors in accordance with the terms of the WestRock Company 2016 Deferred Compensation Plan for Non-Employee Directors.