Smurfit Westrock (SW) officer Laurent Sellier sells 15,562 shares

Rhea-AI Filing Summary

Smurfit Westrock plc officer Laurent Sellier reported open-market sales of 15,562 Ordinary Shares on 18 February 2026. The transactions included 5,685 shares at $50.28 per share and 9,877 shares at $50.22 per share. After these sales, Sellier directly held 115,339 Ordinary Shares. An additional 3,188 shares were reported as indirectly owned and held by Sellier’s spouse. The sale prices reflect a conversion from a price of GBP36.99 on the London Stock Exchange using the European Central Bank closing exchange rate on 18 February 2026.

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
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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^*

Sellier Laurent

(Last) (First) (Middle)

BEECH HILL, CLONSKEAGH

(Street)

DUBLIN 4 L2 D04 N2R2

(City) (State) (Zip)

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

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

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

3. Date of Earliest Transaction (Month/Day/Year)
02/18/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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	02/18/2026		S		5,685	D	$50.28	125,216	D
Ordinary Shares	02/18/2026		S		9,877	D	$50.22(1)	115,339	D
Ordinary Shares								3,188	I	Shares held by spouse

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. The shares were sold on the London Stock Exchange and the price of GBP36.99 was converted to USD using the closing European Central Bank Rate on 18 February 2026.

Remarks:

President & Chief Executive Officer, North America (including Mexico)

	/s/ Ciara O'Riordan (attorney-in-fact for Laurent Sellier)	02/20/2026
	** 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.

FAQ

What insider transaction did Smurfit Westrock (SW) disclose for Laurent Sellier?

Smurfit Westrock reported that officer Laurent SellierOrdinary Shares on 18 February 2026. The sales were executed as open-market transactions on the London Stock Exchange at prices converted from GBP to USD using the ECB closing rate.

How many Smurfit Westrock (SW) shares did Laurent Sellier sell and at what prices?

Laurent Sellier sold 15,562 Ordinary Shares in two trades: 5,685 shares at $50.28 per share and 9,877 shares at $50.22 per share. These USD prices reflect conversion from a GBP36.99 price using the European Central Bank rate.

How many Smurfit Westrock (SW) shares does Laurent Sellier hold after the reported sales?

After the transactions, Laurent Sellier directly held 115,339 Ordinary Shares of Smurfit Westrock. The filing also reports an additional 3,188 shares as indirectly owned, described as shares held by spouse, reflecting family-related ownership.

Where were Laurent Sellier’s Smurfit Westrock (SW) share sales executed?

The filing states that the shares were sold on the London Stock Exchange at a price of GBP36.99. That price was then converted to USD using the European Central Bank closing exchange rate on 18 February 2026 for reporting purposes.

What type of transaction code is used in Laurent Sellier’s Smurfit Westrock (SW) Form 4?

The Form 4 uses transaction code S, which the filing describes as a sale in open market or private transaction. Both reported trades in Ordinary Shares are classified as non-derivative, open-market sales under this transaction code.