Smurfit Westrock (SW) director Hietala receives 51-share RSU dividend award

Rhea-AI Filing Summary

Hietala Kaisa reported acquisition or exercise transactions in this Form 4 filing.

Smurfit Westrock plc director Kaisa Hietala received a grant of 51 ordinary shares on account of restricted stock units that accrued as dividend equivalents following a quarterly dividend of $0.4523 per ordinary share. These additional units carry the same terms as the original award, with each restricted stock unit convertible into one ordinary share.

Following this award, Hietala directly holds 7,701 ordinary shares. This figure includes 4,422 restricted stock units scheduled to vest on the earlier of May 2, 2026 or the date of the company’s next annual stockholder meeting.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Hietala Kaisa

Role Director

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

Holdings After Transaction: Ordinary Shares — 7,701 shares (Direct)

Footnotes (1)

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. 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.

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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
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^*

Hietala Kaisa

(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)	7,701(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 Kaisa Hietala)	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)

FAQ

What insider transaction did Smurfit Westrock (SW) report for Kaisa Hietala?

Smurfit Westrock reported that director Kaisa Hietala received a grant of 51 ordinary shares. The award arose from restricted stock units accruing as dividend equivalents after a quarterly dividend payment of $0.4523 per ordinary share, with each unit representing one ordinary share.

Why did Kaisa Hietala receive 51 additional Smurfit Westrock (SW) shares?

She received 51 additional shares because restricted stock units accrued as dividend equivalents on an existing award. When Smurfit Westrock paid a quarterly dividend of $0.4523 per ordinary share, extra restricted stock units were credited under the award’s terms, each equal to one ordinary share.

How many Smurfit Westrock (SW) shares does Kaisa Hietala hold after this Form 4?

After the reported transaction, Kaisa Hietala directly holds 7,701 ordinary shares of Smurfit Westrock. This total includes both currently held shares and restricted stock units credited to her, reflecting the incremental 51-share dividend equivalent award on her existing equity grant.

What are the terms of the restricted stock units mentioned for Smurfit Westrock (SW)?

The restricted stock units credited as dividend equivalents follow the same terms and conditions as the underlying award. Each unit represents the right to receive one ordinary share, aligning Hietala’s compensation with shareholder returns through stock-based incentives tied to dividend payments.

When will Kaisa Hietala’s 4,422 Smurfit Westrock (SW) restricted stock units vest?

The 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. This schedule links Hietala’s equity compensation to ongoing board service through a clear, time-based vesting condition.

Is this Smurfit Westrock (SW) Form 4 transaction an open-market purchase or a grant?

The transaction is a grant, not an open-market purchase. It reflects a grant or award acquisition of 51 shares via restricted stock units credited as dividend equivalents, provided at no cash cost per share under the company’s equity compensation arrangements for directors.