# EDGAR Filing Document

**Accession Number:** 0002026939
**File Stem:** 0001104659-25-091934
**Filing Date:** 2025-9
**Character Count:** 12356
**Document Hash:** 54637554bbd1cd655a6ae93990dea972
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-25-091934.hdr.sgml**: 20250922

**ACCESSION NUMBER**: 0001104659-25-091934

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20250918

**FILED AS OF DATE**: 20250922

**DATE AS OF CHANGE**: 20250922

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Bowles Ken
- **CENTRAL INDEX KEY:** 0002026939

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-42161
- **FILM NUMBER:** 251328656

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** BEECH HILL
- **STREET 2:** CLONSKEAGH
- **CITY:** DUBLIN 4
- **PROVINCE COUNTRY:** L2
- **ZIP:** D04 N2R2
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Smurfit Westrock plc
- **CENTRAL INDEX KEY:** 0002005951
- **STANDARD INDUSTRIAL CLASSIFICATION:** PAPERBOARD CONTAINERS & BOXES [2650]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 000000000
- **STATE OF INCORPORATION:** L2
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** BEECH HILL
- **STREET 2:** CLONSKEAGH
- **CITY:** DUBLIN 4
- **PROVINCE COUNTRY:** L2
- **ZIP:** D04 N2R2
- **BUSINESS PHONE:** 353 1 202 7000

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** BEECH HILL
- **STREET 2:** CLONSKEAGH
- **CITY:** DUBLIN 4
- **PROVINCE COUNTRY:** L2
- **ZIP:** D04 N2R2

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Smurfit WestRock plc
- **DATE OF NAME CHANGE:** 20240628

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Smurfit WestRock Ltd
- **DATE OF NAME CHANGE:** 20231226

## Exhibit 24.1

**Exhibit 24.1**

**Power of Attorney**

Know all by these presents, that the undersigned hereby makes, constitutes and appoints each of Ciara O'Riordan and Nicola Coyle, or any of them acting singly, and with full power of substitution and re-substitution, the undersigned's true and lawful attorney-in-fact (each of such persons and their substitutes being referred to herein as the "Attorney-in-Fact"), with full power to act for the undersigned and in the undersigned's name, place and stead, in any and all capacities so long as such Attorney-in-Fact is an authorized representative of the Smurfit Westrock plc (the "Company"), to:

&nbsp;&nbsp;&nbsp;&nbsp;1. Obtain
 credentials (including codes or passwords) enabling the undersigned to make electronic filings
 with the U.S. Securities and Exchange Commission (the "SEC"), including as necessary
 to prepare, execute, and submit to the SEC a Form ID, including amendments thereto, and any
 other documents necessary, advisable or appropriate to obtain codes and passwords enabling
 the undersigned to make electronic filings with the SEC of reports required or considered
 by the Attorney-in-Fact to be advisable under Section 13 or Section 16 of the Securities
 Exchange Act of 1934 (the "Exchange Act") or any rule or regulation of the SEC;

&nbsp;&nbsp;&nbsp;&nbsp;2. Act
 as an account administrator for the undersigned's Electronic Data Gathering and Retrieval
 ("EDGAR") account, including, as applicable: (i) appointing, removing and replacing
 account administrators, technical administrators, account users, and delegated entities;
 (ii) maintaining the security of the undersigned's EDGAR account, including modification
 of access codes; (iii) maintaining, modifying and certifying the accuracy of information
 on the undersigned's EDGAR account dashboard; and (iv) taking any other actions contemplated
 by Rule 10 of Regulation S-T;

&nbsp;&nbsp;&nbsp;&nbsp;3. Prepare,
 execute and submit to the SEC, the Company, and/or any national securities exchange on which
 the Company's securities are listed any and all reports (including any amendments thereto)
 the undersigned is required to file with the SEC, or which the Attorney-in-Fact considers
 it advisable to file with the SEC, under Section 13 or Section 16 of the Exchange Act or
 any rule or regulation thereunder, or under Rule 144 under the Securities Act of 1933 ("Rule
 144"), with respect to any security of the Company, including Forms 3, 4 and 5, Schedules
 13D and 13G, and Forms 144; and

&nbsp;&nbsp;&nbsp;&nbsp;4. Obtain,
 as the undersigned's representative and on the undersigned's behalf, information
 regarding transactions in the Company's equity securities from any third party, including
 the Company and any brokers, dealers, employee benefit plan administrators and trustees,
 and the undersigned hereby authorizes any such third party to release any such information
 to the Attorney-in-Fact.

The undersigned acknowledges that:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a) This
 Power of Attorney authorizes, but does not require, the Attorney-in-Fact to act in his or
 her discretion on information provided to such Attorney-in-Fact without independent verification
 of such information;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b) Any
 documents prepared or executed by the Attorney-in-Fact on behalf of the undersigned pursuant
 to this Power of Attorney will be in such form and will contain such information as the Attorney-in-Fact,
 in his or her discretion, deems necessary, advisable or appropriate;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c) Neither
 the Company nor the Attorney-in-Fact assumes any liability for the undersigned's responsibility
 to comply with the requirements of Section 13 or Section 16 of the Exchange Act or Rule 144,
 any liability of the undersigned for any failure to comply with such requirements, or any
 liability of the undersigned for disgorgement of profits under Section 16(b) of the Exchange
 Act; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;d) This
 Power of Attorney does not relieve the undersigned from responsibility for compliance with
 the undersigned's obligations under Section 13 or Section 16 of the Exchange Act, including,
 without limitation, the reporting requirements under Section 13 or Section 16 of the Exchange
 Act.

The undersigned hereby grants to the Attorney-in-Fact full power and authority to do and perform each and every action necessary, advisable or appropriate in connection with the foregoing, as fully, to all intents and purposes, as the undersigned might or could do in person, hereby ratifying and confirming all that the Attorney-in-Fact, or his or her substitute or substitutes, shall lawfully do or cause to be done by authority of this Power of Attorney.

This Power of Attorney shall remain in full force and effect until the undersigned is no longer required to file Forms 4 or 5 or Schedules 13D or 13G or Forms 144 with respect to the undersigned's holdings of and transactions in securities of the Company, unless earlier revoked by the undersigned in a signed writing delivered to the Attorney-in-Fact. This Power of Attorney revokes all previous powers of attorney with respect to the subject matter of this Power of Attorney.

IN WITNESS WHEREOF, the undersigned has executed this Power of Attorney as of September 03, 2025.

---

| |
|:---|
| /s/ Ken Bowles |
| Ken Bowles |

---

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[ ] 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**<sup>*</sup><br>Bowles Ken<br><sub>(Last) (First) (Middle)</sub><br>BEECH HILL, CLONSKEAGH<br><sub>(Street)</sub><br>DUBLIN 4, L2 D04 N2R2<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2025-09-18 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[X] Director [ ] 10% Owner<br>[X] Officer (give title below) [ ] Other (specify below)<br>_Executive VP and Group CFO_ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>Smurfit Westrock plc [ SW ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Ordinary Shares | 2025-09-18 |  | A |  | 183 | A | 0<sup>(1)</sup> | 130482<sup>(2)</sup> | D |  |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| Restricted Stock Units (PSP) | <sup>(1)</sup> | 2025-09-18 |  | A |  | 882 |  | <sup>(3)</sup> | <sup>(3)</sup> | Ordinary Shares | 882 | $0 | 91369 | D |  |

---

### Footnotes:

(1) In accordance with the terms of outstanding restricted stock unit awards, additional restricted stock units accrued as dividend equivalents inconnection with the Issuer's payment of a quarterly dividend of $0.4308 per ordinary share. Such additional restricted stock units are subject tothe same terms and conditions as the underlying award. Each restricted stock unit represents the right to receive one ordinary share.

(2) Includes 19,024 restricted stock units which are scheduled to vest in three equal annual installments beginning on March 11, 2026, the firstanniversary of the grant date.

(3) The 91,369 restricted stock units vest and are settled as follows:(i) 50,039 restricted stock units in February 2026, (ii) and 41,330 restricted stockunits in February 2027.

**Remarks:**
Exhibit 24.1 Power of Attorney

**Signature:** /s/ Ciara O'Riordan, attorney-in-fact for Ken Bowles  
**Date:** 2025-09-22

### Remarks:

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.**