Smurfit Westrock (SW) officer awarded 25,178 RSUs, shares withheld for tax

Rhea-AI Filing Summary

Smurfit Westrock plc officer Laurent Sellier reported compensation-related share movements. On March 11, 2026, he received a grant of 25,178 restricted stock units, each representing one ordinary share, scheduled to vest in three equal annual installments beginning on the first anniversary of the grant date.

On March 12, 2026, 2,524 ordinary shares at $42.20 per share were withheld to cover tax obligations upon vesting and settlement of restricted stock units, a non-market disposition. Following these transactions, he holds 137,993 ordinary shares directly, plus 3,188 shares held indirectly by his spouse.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Sellier Laurent

(Last) (First) (Middle)

BEECH HILL, CLONSKEAGH

(Street)

DUBLIN 4 L2 D04 N2R2

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Smurfit Westrock plc [ SW ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	See remarks

3. Date of Earliest Transaction (Month/Day/Year)
03/11/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Ordinary Shares	03/11/2026		A(1)		25,178	A	$0	140,517	D
Ordinary Shares	03/12/2026		F(2)		2,524	D	$42.2	137,993	D
Ordinary Shares								3,188	I	Shares held by spouse

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. On March 11, 2026, the Reporting Person was granted 25,178 restricted stock units. Each restricted stock unit represents a contingent right to receive one ordinary share. The restricted stock units are scheduled to vest in three equal annual installments beginning on the first anniversary of the grant date.

2. Reflects ordinary shares of Smurfit Westrock plc withheld to satisfy the Reporting Person's tax withholding obligation upon vesting and settlement of their restricted stock units.

Remarks:

President and Chief Executive Officer, North America (including Mexico)

	/s/ Ciara O'Riordan (attorney-in-fact for Laurent Sellier)	03/13/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did Smurfit Westrock (SW) officer Laurent Sellier report on this Form 4?

Laurent Sellier reported a grant of 25,178 restricted stock units and a related tax-withholding share disposition. These transactions are compensation-related, not open-market trades, and update his direct and indirect ownership in Smurfit Westrock ordinary shares.

How many restricted stock units did Laurent Sellier receive from Smurfit Westrock (SW)?

He received 25,178 restricted stock units, each representing one ordinary share of Smurfit Westrock. The award vests in three equal annual installments starting on the first anniversary of the March 11, 2026 grant date, aligning compensation with longer-term company performance.

What is the vesting schedule of the new Smurfit Westrock (SW) restricted stock units?

The 25,178 restricted stock units are scheduled to vest in three equal annual installments. Vesting begins on the first anniversary of the March 11, 2026 grant date, spreading delivery of ordinary shares over three years and tying value to continued service and performance.

Why were 2,524 Smurfit Westrock (SW) shares disposed of in this filing?

The 2,524 ordinary shares were withheld by Smurfit Westrock to satisfy Laurent Sellier’s tax withholding obligations upon vesting and settlement of restricted stock units. This is an internal tax-withholding disposition, not an open-market sale initiated to change investment exposure.

How many Smurfit Westrock (SW) shares does Laurent Sellier own after these transactions?

After the reported transactions, he directly owns 137,993 ordinary shares of Smurfit Westrock and has an additional 3,188 shares held indirectly by his spouse. These figures reflect his updated beneficial ownership as reported in the Form 4 filing.

Were any of Laurent Sellier’s Smurfit Westrock (SW) transactions open-market buys or sells?

No open-market purchases or sales were reported. The Form 4 shows a grant of restricted stock units and shares withheld to cover tax obligations. Both are compensation and tax-related entries rather than discretionary market trades in Smurfit Westrock stock.