X0508 4 2025-07-01 false 0001000623 Mativ Holdings, Inc. MATV 0001226577 COOK WILLIAM M MATIV HOLDINGS 100 KIMBALL PLACE, STE 600 ALPHARETTA GA 30009 true false false false false Common Stock 26436.00 D Phantom Stock 0.00 2025-07-01 4 A false 2108.00 6.82 A Common Stock 2108.00 55214.00 D Phantom Stock 0.00 2025-10-01 4 A false 439.00 12.57 A Common Stock 439.00 55653.00 D Phantom Stock 0.00 2025-10-01 4 A false 1271.00 11.31 A Common Stock 1271.00 56924.00 D Represents quarterly meeting retainer for Q2 and committee retainers deferred pursuant to the Director's election in accordance with the Non-Employee Directors Deferred Compensation Plan. Stock units are converted to stock upon the earlier of retirement from the Board or termination as a Director in accordance with the Company's Non-Employee Directors Deferred Compensation Plan. Represents in-kind dividends credited pursuant to the Director's election under the Non-Employee Directors Deferred Compensation Plan. Represents quarterly meeting retainer for Q3 and committee retainers deferred pursuant to the Director's election in accordance with the Non-Employee Directors Deferred Compensation Plan. /s/ Brian Park, attorney-in-fact for William M. Cook, principal 2025-10-03