Smurfit Westrock (NYSE: SW) exec now holds 241,565 shares

Rhea-AI Filing Summary

Smurfit Westrock plc (SW) reported that executive Saverio Mayer, President and Chief Executive Officer, Europe, MEA and APAC, acquired 195 ordinary shares through additional restricted stock units that accrued as dividend equivalents on an existing award. Following this accrual, Mayer holds 241,565 ordinary shares in total, including 32,585 restricted stock units that are scheduled to vest in three equal annual installments beginning on the first anniversary of the grant date.

Insider Trade Summary

Net Buyer: 195 shares

Net Buy 1 txn

Insider Mayer Saverio

Role See remarks

Type	Security	Shares	Price	Value
Grant/Award	Ordinary Shares F1, F2	195	$0.00	$0.00

Holdings After Transaction: Ordinary Shares — 241,565 shares (Direct)

Footnotes (2)

1. F1. In accordance with the terms of the restricted stock unit award, additional restricted stock units accrued as dividend equivalents based on the Issuer's quarterly dividend of $0.4523 per ordinary share, with such accrual determined as of the dividend record date. 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. F2. Includes 32,585 restricted stock unit awards. Each restricted stock unit represents a contingent right to receive one ordinary share. The RSUs are scheduled to vest in three equal annual installments beginning on the first anniversary of the grant date.

Key Figures

Shares acquired via RSU dividend equivalents: 195 shares Total shares held after transaction: 241,565 shares Restricted stock units included in holdings: 32,585 RSUs +1 more

4 metrics

Shares acquired via RSU dividend equivalents 195 shares Additional restricted stock units accrued as dividend equivalents on 2026-08-14

Total shares held after transaction 241,565 shares Ordinary shares beneficially owned by Saverio Mayer following the reported transaction

Restricted stock units included in holdings 32,585 RSUs Restricted stock unit awards, each representing a contingent right to one ordinary share

Quarterly dividend per ordinary share $0.4523 per share Dividend used to determine additional RSUs accrued as dividend equivalents

Key Terms

restricted stock unit, dividend equivalents, vest in three equal annual installments

3 terms

restricted stock unit financial

"Includes 32,585 restricted stock unit awards."

A restricted stock unit is a promise from a company to give an employee shares of stock after certain conditions are met, like staying with the company for a set amount of time. It’s like earning a bonus that turns into company stock once you’ve proven your commitment, making it a way to motivate and reward employees.

dividend equivalents financial

"additional restricted stock units accrued as dividend equivalents based on the Issuer's quarterly dividend"

Payments tied to employee or contractor equity awards that mirror the cash dividends paid on the company’s stock; they give the holder the same economic benefit as owning the shares without transferring actual shares—often paid in cash or additional award units when the award becomes payable. Investors care because these payments affect a company’s compensation costs, cash flow and potential share dilution, and they signal how management is being rewarded and aligned with shareholders.

vest in three equal annual installments financial

"The RSUs are scheduled to vest in three equal annual installments"

FAQ

What insider transaction did Smurfit Westrock plc (SW) report for Saverio Mayer?

Smurfit Westrock plc reported that Saverio Mayer acquired 195 ordinary shares via additional restricted stock units accrued as dividend equivalents on an existing award, with no cash purchase involved and subject to the underlying award’s terms.

How many Smurfit Westrock (SW) shares does Saverio Mayer hold after this Form 4 transaction?

After the reported transaction, Saverio Mayer holds 241,565 ordinary shares of Smurfit Westrock plc. This total includes previously held shares plus restricted stock units associated with his equity awards.

How many restricted stock units does Saverio Mayer now have at Smurfit Westrock (SW)?

Saverio Mayer’s holdings include 32,585 restricted stock units. Each RSU represents a contingent right to receive one ordinary share of Smurfit Westrock plc, subject to vesting and the award’s other terms and conditions.

How and why did Saverio Mayer receive 195 additional RSUs at Smurfit Westrock (SW)?

He received 195 additional restricted stock units as dividend equivalents, calculated based on Smurfit Westrock’s quarterly dividend of $0.4523 per ordinary share, with the accrual determined as of the dividend record date under the RSU award’s terms.

What is the vesting schedule for Saverio Mayer’s RSUs at Smurfit Westrock (SW)?

The 32,585 restricted stock units held by Saverio Mayer are scheduled to vest in three equal annual installments, beginning on the first anniversary of the grant date, assuming continued satisfaction of the award’s conditions.

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 08/18/2026 - 11:45 AM Accepted by SEC EDGAR 08/18/2026 - 11:44 AM Learn about SEC filing dates

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
Estimated average burden
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 D04 N2R2

(City) (State) (Zip)

IRELAND

(Country)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/14/2026

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

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

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

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	08/14/2026		A		195	A	$0(1)	241,565(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

Explanation of Responses:

1. In accordance with the terms of the restricted stock unit award, additional restricted stock units accrued as dividend equivalents based on the Issuer's quarterly dividend of $0.4523 per ordinary share, with such accrual determined as of the dividend record date. 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 32,585 restricted stock unit awards. Each restricted stock unit represents a contingent right to receive one ordinary share. The RSUs are scheduled to vest in three equal annual installments beginning on the first anniversary of the grant date.

Remarks:

President and Chief Executive Officer, Europe, MEA and APAC

	/s/ Ciara O'Riordan (attorney-in-fact for Saverio Mayer)	08/18/2026
	** 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.
* Form 4: SEC 1474 (03-26)