Saverio Mayer) - 13 Feb 2026 Form 4 Insider Report for Smurfit Westrock plc (SW)

Reporting relationship: President & Chief Executive Officer, Europe, MEA and APAC
Issuer ticker: SW
Reported as of: 13 Feb 2026
Net transaction value: -$1,256,499
SEC form: 4
Accepted by SEC: 17 Feb 2026, 12:45:18 UTC
Prior SEC filing: 19 Dec 2025
Next SEC filing: 13 Mar 2026
Source filing: View source filing
Reporting owner signature: /s/ Ciara O'Riordan (attorney-in-fact for Saverio Mayer)

Key filing fact

Saverio Mayer) filed Form 4 for Smurfit Westrock plc (SW) on 17 Feb 2026.

Key facts

This page summarizes Saverio Mayer)'s Form 4 filing for Smurfit Westrock plc (SW).
5 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 17 Feb 2026, 12:45.

Change

Previous filing in this sequence was filed on 19 Dec 2025.
Current net transaction value: -$1,256,499.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002028256 Primary reporting owner

Mayer Saverio

Relationship: President & Chief Executive Officer, Europe, MEA and APAC
Address: BEECH HILL, CLONSKEAGH, DUBLIN 4, IRELAND
Signature: /s/ Ciara O'Riordan (attorney-in-fact for Saverio Mayer)
Signature date: 17 Feb 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

SW transaction

Ordinary Shares

Options Exercise

Transaction value: $0
Shares: +44,539
Change %: +23%
Price: $0.000000
Shares after: 234,278
Date: 13 Feb 2026
Ownership: Direct
Footnotes: F1

SW transaction

Ordinary Shares

Options Exercise

Transaction value: $0
Shares: +12,288
Change %: +5.2%
Price: $0.000000
Shares after: 246,566
Date: 13 Feb 2026
Ownership: Direct
Footnotes: F2

SW transaction

Ordinary Shares

Tax liability

Transaction value: $1,256,499
Shares: -24,436
Change %: -9.9%
Price: $51.42
Shares after: 222,130
Date: 13 Feb 2026
Ownership: Direct
Footnotes: F3

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

SW transaction Derivative

Restricted Stock Units (PSP)

Options Exercise

Transaction value: $0
Shares: -44,539
Change %: -55%
Price: $0.000000
Shares after: 36,788
Date: 13 Feb 2026
Ownership: Direct
Underlying class: Ordinary Shares
Underlying amount: 44,539
Exercise price: $0.000000
Footnotes: F4

SW transaction Derivative

Restricted Stock Units (DBP)

Options Exercise

Transaction value: $0
Shares: -12,288
Change %: -53%
Price: $0.000000
Shares after: 10,907
Date: 13 Feb 2026
Ownership: Direct
Underlying class: Ordinary Shares
Underlying amount: 12,288
Exercise price: $0.000000
Footnotes: F4

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 4 footnotes

Footnote F1

Reflects the acquisition of common stock upon vesting and settlement of performance share plan awards. Each performance share plan award represents a right to receive one ordinary share of Smurfit Westrock plc upon vesting and settlement of the applicable award.

Footnote F2

Reflects the acquisition of common stock upon vesting and settlement of deferred bonus plan awards. Each deferred bonus plan award represents a right to receive one ordinary share of Smurfit Westrock plc upon vesting and settlement of the applicable award.

Footnote F3

Reflects ordinary shares of Smurfit Westrock plc withheld to satisfy the reporting persons tax withholding obligation upon vesting and settlement of deferred bonus plan awards and performance share plan awards.

Footnote F4

Reflects the vesting and settlement of deferred bonus plan awards granted on 22 September 2023 and performance share plan awards granted on 22 September 2023.

SEC remarks

President & Chief Executive Officer, Europe, MEA and APAC