Smurfit Westrock (SW) executive reports new RSUs and share accruals

Rhea-AI Filing Summary

Smurfit Westrock plc officer Saverio Mayer reported routine equity awards tied to dividend equivalents and existing grants. On 12/18/2025, he acquired 179 ordinary shares at $0, increasing his directly held stake to 189,739 ordinary shares. These shares reflect additional restricted stock units that accrued as dividend equivalents on the company’s quarterly dividend of $0.4308 per ordinary share.

He also received 896 restricted stock units, bringing his total directly held restricted stock units to 81,327. The filing notes that 16,277 restricted stock units are scheduled to vest in three equal annual installments beginning on March 11, 2026, and that 44,539 restricted stock units vest in February 2026 and 36,788 vest in February 2027. Each restricted stock unit gives the right to receive one ordinary share under the same terms as the underlying award.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Mayer Saverio

Role See remarks

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Units (PSP)	896	$0.00	--
Grant/Award	Ordinary Shares	179	$0.00	--

Holdings After Transaction: Restricted Stock Units (PSP) — 81,327 shares (Direct); Ordinary Shares — 189,739 shares (Direct)

Footnotes (1)

1. In accordance with the terms of the applicable outstanding restricted stock unit award, 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. Includes 16,277 restricted stock units which are scheduled to vest in three equal annual installments beginning on March 11, 2026, the first anniversary of the grant date. The 81,327 restricted stock units vest and are settled as follows:(i) 44,539 restricted stock units in February 2026, (ii) and 36,788 restricted stock units in February 2027.

Form 4 Insider Transactions: What Each Field Means →

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

OMB Number:			3235-0287
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hours per response:			0.5

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^*

Mayer Saverio

(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)
12/18/2025

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	12/18/2025		A		179	A	$0(1)	189,739(2)	D

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
Restricted Stock Units (PSP)	(1)	12/18/2025		A		896		(3)	(3)	Ordinary Shares	896	$0	81,327	D

Explanation of Responses:

1. In accordance with the terms of the applicable outstanding restricted stock unit award, 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.

2. Includes 16,277 restricted stock units which are scheduled to vest in three equal annual installments beginning on March 11, 2026, the first anniversary of the grant date.

3. The 81,327 restricted stock units vest and are settled as follows:(i) 44,539 restricted stock units in February 2026, (ii) and 36,788 restricted stock units in February 2027.

Remarks:

President and Chief Executive Officer, Europe, MEA and APAC

	/s/ Ciara O'Riordan (attorney-in-fact for Saverio Mayer)	12/19/2025
	** Signature of Reporting Person	Date
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