Principal Mark W. Johnson - 01 Sep 2026 Form 4 Insider Report for Mativ Holdings, Inc. (MATV)

Reporting relationship: CLO and Corporate Secretary
Issuer ticker: MATV
Reported as of: 01 Sep 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 03 Sep 2026, 16:19:33 UTC
Prior SEC filing: 23 Mar 2026
Source filing: View source filing
Reporting owner signature: /s/ Brian Park, attorney-in-fact for Mark W. Johnson, principal

Key filing fact

Principal Mark W. Johnson filed Form 4 for Mativ Holdings, Inc. (MATV) on 03 Sep 2026.

Key facts

This page summarizes Principal Mark W. Johnson's Form 4 filing for Mativ Holdings, Inc. (MATV).
3 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 03 Sep 2026, 16:19.

Change

Previous filing in this sequence was filed on 23 Mar 2026.
Current net transaction value: $0.

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 0001802219 Primary reporting owner

JOHNSON MARK W

Relationship: CLO and Corporate Secretary
Address: C/O MATIV HOLDINGS, INC,, 100 KIMBALL PLACE, SUITE 600, ALPHARETTA
Signature: /s/ Brian Park, attorney-in-fact for Mark W. Johnson, principal
Signature date: 03 Sep 2026

Reported non-derivative transactions

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

MATV transaction

Common Stock

Options Exercise

Transaction value
Shares: +6,444
Change %: +5.2%
Price
Shares after: 131,557
Date: 01 Sep 2026
Ownership: Direct
Footnotes: F1

MATV transaction

Common Stock

Disposed to Issuer

Transaction value
Shares: -6,444
Change %: -4.9%
Price: $11.89^*
Shares after: 125,113
Date: 01 Sep 2026
Ownership: Direct
Footnotes: F1, F2

Reported derivative securities

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

MATV transaction Derivative

RSU

Options Exercise

Transaction value
Shares: -6,444
Change %: -100%
Price
Shares after: 0
Date: 01 Sep 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 6,444
Exercise price
Footnotes: F1

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

On September 20, 2023, the reporting person was granted 19,330 restricted stock units ("RSUs") subject to time vesting. Such RSUs vest in three equal annual installments beginning on September 1, 2024 and each anniversary thereafter. Each RSU represents a right to receive one share of the common stock of the issuer and/or cash upon vesting. 6,444 RSUs vested on September 1, 2026.

Footnote F2

This transaction reflects the cash settlement of 6,444 vested RSUs.