Smurfit Westrock (SW) director receives 51-share equity award via RSUs

Rhea-AI Filing Summary

FergusonMchugh MaryLynn reported acquisition or exercise transactions in this Form 4 filing.

Smurfit Westrock plc director MaryLynn FergusonMchugh received an award of 51 Ordinary Shares on a compensation basis. The Form 4 shows this as a grant or award, with no purchase price, increasing her directly held stake to 6,230 Ordinary Shares.

The award stems from restricted stock units that accrued as dividend equivalents tied to a quarterly dividend of $0.4523 per ordinary share. Each restricted stock unit represents the right to receive one ordinary share, and 4,422 of these restricted stock units are scheduled to vest on the earlier of May 2, 2026 or the next annual stockholder meeting.

Insider Trade Summary

Net Buyer: 51 shares

Net Buy 1 txn

Insider FergusonMchugh MaryLynn

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Ordinary Shares	51	$0.00	$0.00

Holdings After Transaction: Ordinary Shares — 6,230 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 in connection with the Issuer's payment of a quarterly dividend of $0.4523 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. F2. Includes 4,422 restricted stock units which will vest on the earlier of (i) May 2, 2026 or (ii) the date of the next annual meeting of Smurfit Westrock plc's stockholders.

FAQ

What insider transaction did Smurfit Westrock (SW) report for MaryLynn FergusonMchugh?

Smurfit Westrock reported that director MaryLynn FergusonMchugh received a grant of 51 Ordinary Shares. The award is recorded at a zero purchase price and arises from restricted stock units accruing as dividend equivalents on the company’s quarterly dividend of $0.4523 per ordinary share.

Was the Smurfit Westrock (SW) Form 4 transaction an open-market share purchase?

No, the Form 4 shows a grant or award acquisition, not an open-market purchase. The 51 Ordinary Shares came from restricted stock units accruing as dividend equivalents on a quarterly dividend, with no cash paid per share by the reporting director.

How many Smurfit Westrock (SW) shares does MaryLynn FergusonMchugh hold after this Form 4?

After the reported grant, MaryLynn FergusonMchugh directly holds 6,230 Ordinary Shares. This total includes shares underlying restricted stock units, some of which are scheduled to vest in the future under the company’s equity award terms and related dividend equivalent provisions.

What are the dividend-equivalent restricted stock units mentioned in the Smurfit Westrock (SW) filing?

The filing explains that additional restricted stock units accrued as dividend equivalents when Smurfit Westrock paid a $0.4523 quarterly dividend per ordinary share. Each restricted stock unit corresponds to one ordinary share and is subject to the same vesting terms as the underlying equity award.

When will MaryLynn FergusonMchugh’s Smurfit Westrock (SW) restricted stock units vest?

The document states that 4,422 restricted stock units will vest on the earlier of May 2, 2026 or the date of Smurfit Westrock plc’s next annual stockholder meeting. These units each represent the right to receive one ordinary share upon vesting, under the plan’s conditions.

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Form 4 Insider Transactions: What Each Field Means →

Accepted by SEC EDGAR 03/20/2026 - 01:15 PM 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^*

FergusonMchugh MaryLynn

(Last) (First) (Middle)

BEECH HILL, CLONSKEAGH

(Street)

DUBLIN 4 D04 N2R2

(City) (State) (Zip)

UNITED STATES

(Country)

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

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/18/2026

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	03/18/2026		A		51	A	$0(1)	6,230(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 in connection with the Issuer's payment of a quarterly dividend of $0.4523 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 4,422 restricted stock units which will vest on the earlier of (i) May 2, 2026 or (ii) the date of the next annual meeting of Smurfit Westrock plc's stockholders.

Remarks:

	/s/ Ciara O'Riordan (attorney-in-fact-pursuant for Mary Lynn Ferguson McHugh)	03/20/2026
	** 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)