X0508 4 2026-02-13 false 0001000623 Mativ Holdings, Inc. MATV 0001927959 Allegri Cheryl C/O MATIV HOLDINGS, INC, 100 KIMBALL PLACE, SUITE 600 ALPHARETTA GA 30009 false true false false Controller false Common Stock 2026-02-13 4 M false 1225.00 0.00 A 19754.00 D Common Stock 2026-02-13 4 F false 434.00 14.52 D 19320.00 D Common Stock 2026-02-16 4 M false 642.00 0.00 A 19962.00 D Common Stock 2026-02-16 4 D false 642.00 14.78 D 19320.00 D RSU 2026-02-13 4 M false 1225.00 0.00 D Common Stock 1225.00 1226.00 D RSU 2026-02-16 4 M false 642.00 0.00 D Common Stock 642.00 0.00 D On April 26, 2024, the reporting person was granted 3,677 RSUs subject to time vesting. Such RSUs vest in three equal annual installments beginning on February 13, 2025 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. 1,225 RSUs vested on February 13, 2026. Shares withheld to satisfy tax withholding obligation arising upon the vesting of RSUs. On February 16, 2023, the reporting person was granted 1,926 RSUs subject to time vesting. Such RSUs vest in three equal annual installments beginning on February 16, 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. 642 RSUs vested on February 16, 2026. The transaction reflects the cash settlement of 642 vested RSUs on each of February 16, 2026. /s/ Brian Park, attorney-in-fact for Cheryl Allegri, principal 2026-02-18