Smurfit Westrock director gets 48 stock units

Smurfit Westrock plc (SW) reported that director Kaisa Hietala acquired 48 ordinary shares on September 10, 2026 through a grant of additional restricted stock units that accrued as dividend equivalents on an existing award.

Rhea-AI Filing Summary

Smurfit Westrock plc (SW) reported that director Kaisa Hietala acquired 48 ordinary shares on September 10, 2026 through a grant of additional restricted stock units that accrued as dividend equivalents on an existing award. No cash price was paid for these units. After this grant, she holds 10,115 ordinary shares in total, including 4,537 restricted stock units that will vest on the earlier of May 1, 2027 or the next annual meeting of Smurfit Westrock plc’s stockholders.

The newly accrued restricted stock units carry the same terms as the underlying award, and each unit represents the right to receive one ordinary share. The transaction was not reported as made under a Rule 10b5-1 trading plan.

Insider Trade Summary

Grant/Award: 48 shares

Grant/Award 1 txn

Insider Hietala Kaisa

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Ordinary Shares F1, F2	48	$0.00	$0.00

Holdings After Transaction: Ordinary Shares — 10,115 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 4,537 restricted stock units which will vest on the earlier of (i) May 1, 2027, or (ii) the date of the next annual meeting of Smurfit Westrock plc's stockholders.

Key Figures

Shares acquired: 48 shares Price per share: $0.00 Total holdings after transaction: 10,115 shares +3 more

6 metrics

Shares acquired 48 shares Restricted stock units accrued as dividend equivalents on September 10, 2026

Price per share $0.00 Per-share price for the 48 restricted stock units granted

Total holdings after transaction 10,115 shares Ordinary shares beneficially owned by Kaisa Hietala after the grant

Unvested restricted stock units 4,537 units Restricted stock units that will vest on the earlier of May 1, 2027 or the next annual meeting

Quarterly dividend per share $0.4523 Dividend per ordinary share that generated the dividend-equivalent restricted stock units

Transaction date September 10, 2026 Date the dividend-equivalent restricted stock units were credited

Key Terms

restricted stock unit, dividend equivalents, quarterly dividend, ordinary share

4 terms

restricted stock unit financial

"Includes 4,537 restricted stock units which will vest on the earlier of"

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 in connection"

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.

quarterly dividend financial

"in connection with the Issuer's payment of a quarterly dividend of"

A quarterly dividend is a payment a company gives to its shareholders four times a year, usually as a share of its profits. It's like getting a small bonus every few months for owning the company's stock, which can provide a steady income. Investors watch these payments to see how well a company is doing and whether it’s a good investment.

ordinary share financial

"dividend of $0.4523 per ordinary share. Such additional restricted"

An ordinary share is a unit of ownership in a company that gives the holder a stake in its profits and usually the right to vote on key decisions. Think of it like a slice of a pizza where each slice entitles you to a portion of what’s left after bills are paid; value can rise or fall with the business and may pay dividends, so it matters to investors for income, growth and control.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

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

Smurfit Westrock plc reported that director Kaisa Hietala acquired 48 ordinary shares on September 10, 2026 via a grant of additional restricted stock units accrued as dividend equivalents on an existing award.

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

After the reported transaction, Kaisa Hietala holds 10,115 ordinary shares of Smurfit Westrock plc, including 4,537 restricted stock units that are scheduled to vest on a future date.

What are the terms of the new restricted stock units reported for SW?

The 48 additional restricted stock units accrued as dividend equivalents in connection with a quarterly dividend of $0.4523 per ordinary share. They are subject to the same terms and conditions as the underlying award, and each unit represents the right to receive one ordinary share.

When will Kaisa Hietala’s restricted stock units in SW vest?

The filing states that 4,537 restricted stock units will vest on the earlier of May 1, 2027 or the date of the next annual meeting of Smurfit Westrock plc’s stockholders.

Was the SW insider transaction made under a Rule 10b5-1 plan?

No. The Form 4 indicates that the transaction was not made pursuant to a Rule 10b5-1 trading plan, as the related checkbox is not affirmed.

Did Kaisa Hietala pay a price per share for the SW restricted stock units?

No cash consideration was paid. The Form 4 reports a per-share price of $0.00 for the 48 restricted stock units, which accrued automatically as dividend equivalents on an existing award.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/14/2026 - 11:21 AM Accepted by SEC EDGAR 09/14/2026 - 11:21 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^*

Hietala Kaisa

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/10/2026

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	09/10/2026		A		48	A	$0(1)	10,115(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 4,537 restricted stock units which will vest on the earlier of (i) May 1, 2027, 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)	09/14/2026
	** 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)