Smurfit Westrock director granted 48 RSUs

A Smurfit Westrock plc director received 48 additional RSUs as dividend equivalents, bringing total reported holdings to 8,644 ordinary shares.

Rhea-AI Filing Summary

Smurfit Westrock plc (symbol: SW) is the issuer of record for a Form 4 filing submitted to the SEC. FergusonMchugh MaryLynn reported acquisition or exercise transactions in this Form 4 filing.

Smurfit Westrock plc (SW) director MaryLynn FergusonMchugh received a grant of 48 restricted stock units on September 10, 2026, credited as dividend equivalents tied to a quarterly dividend. After this award, she holds 8,644 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. No Rule 10b5-1 trading plan is reported for this transaction.

Insider Trade Summary

Grant/Award: 48 shares

Grant/Award 1 txn

Insider FergusonMchugh MaryLynn

Role Director

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

Holdings After Transaction: Ordinary Shares — 8,644 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

Restricted stock units granted: 48 RSUs Price per unit: $0.00 per RSU Total ordinary shares after transaction: 8,644 shares +2 more

5 metrics

Restricted stock units granted 48 RSUs Dividend-equivalent RSUs granted on September 10, 2026

Price per unit $0.00 per RSU Reported transaction price for the RSU grant

Total ordinary shares after transaction 8,644 shares Holdings of MaryLynn FergusonMchugh following the RSU grant

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

Quarterly dividend per ordinary share $0.4523 per share Dividend on which the RSU dividend equivalents were based

Key Terms

restricted stock units, dividend equivalents, quarterly dividend

3 terms

restricted stock units financial

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

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

dividend equivalents financial

"additional restricted stock units accrued as dividend equivalents in"

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"

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.

FAQ

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

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

Smurfit Westrock plc reported that director MaryLynn FergusonMchugh received 48 restricted stock units on September 10, 2026, recorded as a grant or award acquisition at a reported price of $0.00 per unit.

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

After the reported transaction, MaryLynn FergusonMchugh holds 8,644 ordinary shares of Smurfit Westrock plc, which include 4,537 restricted stock units subject to vesting conditions.

What is the origin of the 48 RSUs reported for Smurfit Westrock plc (SW)?

The 48 restricted stock units accrued as dividend equivalents in connection with Smurfit Westrock plc’s payment of a quarterly dividend of $0.4523 per ordinary share, and are subject to the same terms and conditions as the underlying RSU award.

When will the 4,537 restricted stock units for Smurfit Westrock plc (SW) vest?

The 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, according to the filing footnote.

Was the Smurfit Westrock plc (SW) insider RSU grant made under a Rule 10b5-1 plan?

No. The Form 4 indicates the Rule 10b5-1 checkbox as not checked, and no footnote states that the transaction was made pursuant to a Rule 10b5-1 trading plan.

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

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Available on EDGAR 09/14/2026 - 11:23 AM Accepted by SEC EDGAR 09/14/2026 - 11:23 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^*

FergusonMchugh MaryLynn

(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)	8,644(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 Mary Lynn Ferguson McHugh)	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)