MATV · Mativ Holdings, Inc.

Represents an annual equity retainer of Restricted Stock Units ("RSUs") vesting on July 1, 2027, and granted pursuant to the Company's Outside Director Stock Plan. Each RSU represents a right to receive one share of the common stock of the Issuer upon vesting.

Represent reinvested dividend equivalents on vested RSUs.

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.

This Form 4 was not timely filed due to an administrative error. The failure to timely report the transaction was inadvertent, and this report is being filed promptly upon discovery.

Represents shares withheld by the Company to satisfy tax withholding obligations upon the settlement of restricted stock units and does not represent a discretionary transaction by the Reporting Person.

Represents an annual equity retainer of Restricted Stock Units ("RSUs") vesting on July 1, 2027, and granted pursuant to the Company's Outside Director Stock Plan. Each RSU represents a right to receive one share of the common stock of the Issuer upon vesting.

Represents net reinvested dividends on deferred shares after accounting adjustments related to non-employee director compensation program

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 net reinvested dividends on deferred shares after accounting adjustments related to non-employee director compensation program.

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 an annual stock retainer pursuant to the Company's Outside Director Stock Plan. Deferred pursuant to the Director's election in accordance with the Company's 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 an annual equity retainer of Restricted Stock Units ("RSUs") vesting on July 1, 2027, and granted pursuant to the Company's Outside Director Stock Plan. Each RSU represents a right to receive one share of the common stock of the Issuer upon vesting.

Represents quarterly meeting 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 an annual stock retainer pursuant to the Company's Outside Director Stock Plan. Deferred pursuant to the Director's election in accordance with the Company's 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.

Represent reinvested dividend equivalents on vested RSUs.

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 an annual equity retainer of Restricted Stock Units ("RSUs") vesting on July 1, 2027, and granted pursuant to the Company's Outside Director Stock Plan. Each RSU represents a right to receive one share of the common stock of the Issuer upon vesting.

Shares withheld to satisfy tax withholding obligation arising upon the vesting of RSUs.

On April 26, 2024, the reporting person was granted 22,140 RSUs subject to time vesting in two equal annual installments beginning on April 26, 2025. The RSUs reported herein represent the second and final installment of such grant.

On April 26, 2024, the reporting person was granted 22,140 RSUs subject to time vesting in two equal annual installments beginning on April 26, 2025. The RSUs reported herein represent the second and final installment of such grant.

These shares represent the shares withheld to satisfy tax withholding obligations arising from the vesting of RSUs granted on March 19, 2025.

The balance was adjusted to account for the overreporting of 978 shares on the Reporting Persons Form 4 filed on March 14, 2025.

These shares represent the shares withheld to satisfy tax withholding obligations arising from the vesting of RSUs granted on March 19, 2025.

These shares represent the shares withheld to satisfy tax withholding obligations arising from the vesting of RSUs granted on March 19, 2025.

On March 11, 2025, the reporting person was granted 305,677 Restricted Stock Units ("RSUs") subject to time vesting. Such RSUs vest one year from the date of grant on March 11, 2026. Each RSU represents a right to receive one share of the common stock of the issuer and/or cash upon vesting.

Shares withheld to satisfy tax withholding obligation arising upon the vesting of RSUs.

On March 11, 2025, the reporting person was granted 305,677 Restricted Stock Units ("RSUs") subject to time vesting. Such RSUs vest one year from the date of grant on March 11, 2026. Each RSU represents a right to receive one share of the common stock of the issuer and/or cash upon vesting.

On February 24, 2026, the reporting person was granted 125,159 Restricted Stock Units ("RSUs") subject to time vesting. Such RSUs vest in three equal annual installments on the anniversary of the grant date (February 24, 2027, February 24, 2028, and February 24, 2029). Each RSU represents a right to receive one share of the common stock of the issuer upon vesting.

On February 24, 2026, the reporting person was granted 28,917 Restricted Stock Units ("RSUs") subject to time vesting. Such RSUs vest in three equal annual installments on the anniversary of the grant date (February 24, 2027, February 24, 2028, and February 24, 2029). Each RSU represents a right to receive one share of the common stock of the issuer upon vesting.

On February 24, 2026, the reporting person was granted 24,000 Restricted Stock Units ("RSUs") subject to time vesting. Such RSUs vest in three equal annual installments on the anniversary of the grant date (February 24, 2027, February 24, 2028, and February 24, 2029). Each RSU represents a right to receive one share of the common stock of the issuer upon vesting.

On February 24, 2026, the reporting person was granted 30,556 Restricted Stock Units ("RSUs") subject to time vesting. Such RSUs vest in three equal annual installments on the anniversary of the grant date (February 24, 2027, February 24, 2028, and February 24, 2029). Each RSU represents a right to receive one share of the common stock of the issuer upon vesting.

On February 24, 2026, the reporting person was granted 7,812 Restricted Stock Units ("RSUs") subject to time vesting. Such RSUs vest in three equal annual installments on the anniversary of the grant date (February 24, 2027, February 24, 2028, and February 24, 2029). Each RSU represents a right to receive one share of the common stock of the issuer upon vesting.

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.

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.

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.

Shares withheld to satisfy tax withholding obligation arising upon the vesting of RSUs.

Shares withheld to satisfy tax withholding obligation arising upon the vesting of RSUs.

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.

On April 26, 2024, the reporting person was granted 22,140 restricted stock units ("RSUs") subject to time vesting. Such RUSs vest in three equal installments beginning February 13, 2025. Each RSU represents a right to receive one share of the common stock of the issuer and/or cash upon vesting. 7,380 RSUs vested on February 13, 2026.

On April 26, 2024, the reporting person was granted 20,664 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. 6,888 RSUs vested on February 13, 2026.

On April 26, 2024, the reporting person was granted 20,664 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. 6,888 RSUs vested on February 13, 2026.

On April 26, 2024, the reporting person was granted 22,140 restricted stock units ("RSUs") subject to time vesting. Such RUSs vest in three equal installments beginning February 13, 2025. Each RSU represents a right to receive one share of the common stock of the issuer and/or cash upon vesting. 7,380 RSUs vested on February 13, 2026.

Shares withheld to satisfy tax withholding obligation arising upon the vesting of RSUs.

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.

On March 19, 2025, the reporting person was granted 35,461 RSUs (as disclosed in Table I on the reporting person's Form 4 filed with the Commission on March 21, 2025). Such RSUs vest in three equal annual installments beginning on March 19, 2026, and each anniversary thereafter. Each RSU represents a right to receive one share of the common stock of the issuer upon vesting. Pursuant to the terms of the Separation, 9,294 RSUs were vested in shares on the Settlement Date, 2,798 of such vested shares were withheld to satisfy tax withholding obligations, and the remaining 6,496 of such vested shares issued to the reporting person. 26,167 RSUs remained unvested and were forfeited by the reporting person, and no shares will be issued with respect to any portion of the unvested award.

On February 16, 2023, the reporting person was granted 6,762 restricted stock units subject to time vesting ("RSUs"). 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. The reporting person separated from Mativ Holdings, Inc. (the "Issuer") and ceased to serve as its Chief Financial Officer effective December 31, 2025 (the "Separation"). Pursuant to the terms of the Separation, 2,159 RSUs were vested on January 16, 2026 (the "Settlement Date") and paid in cash on January 20, 2026. 95 RSUs remained unvested and were forfeited by the reporting person, and no shares will be issued with respect to any portion of the unvested award.

On April 26, 2024, the reporting person was granted 21,033 RSUs. 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 upon vesting. Pursuant to the terms of the Separation, 8,797 RSUs were vested in shares on the Settlement Date, 2,648 of such vested shares were withheld to satisfy tax withholding obligations, and the remaining 6,149 of such vested shares issued to the reporting person.

On March 19, 2025, the reporting person was granted a target number of 53,191 PSUs. Each PSU represents a right to receive one share of the common stock of the issuer and/or cash upon vesting. Pursuant to the terms of the Separation, 24,118 PSUs were vested on the Settlement Date.

These shares represent the shares withheld to satisfy tax withholding obligations arising from the prorated vesting of PSUs granted on March 19, 2025.

On February 16, 2023, the reporting person was granted 1,765 RSUs. 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. Pursuant to the terms of the Separation, 564 RSUs were vested on the Settlement Date and paid in cash on January 20, 2026. 25 RSUs remained unvested and were forfeited by the reporting person, and no shares will be issued with respect to any portion of the unvested award.

On February 16, 2023, the reporting person was granted 6,762 restricted stock units subject to time vesting ("RSUs"). 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. The reporting person separated from Mativ Holdings, Inc. (the "Issuer") and ceased to serve as its Chief Financial Officer effective December 31, 2025 (the "Separation"). Pursuant to the terms of the Separation, 2,159 RSUs were vested on January 16, 2026 (the "Settlement Date") and paid in cash on January 20, 2026. 95 RSUs remained unvested and were forfeited by the reporting person, and no shares will be issued with respect to any portion of the unvested award.

On April 26, 2024, the reporting person was granted 21,033 RSUs. 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 upon vesting. Pursuant to the terms of the Separation, 8,797 RSUs were vested in shares on the Settlement Date, 2,648 of such vested shares were withheld to satisfy tax withholding obligations, and the remaining 6,149 of such vested shares issued to the reporting person.

On February 16, 2023, the reporting person was granted a target number of 10,142 PSUs. Each PSU represents a right to receive one share of the common stock of the issuer and/or cash upon vesting. Pursuant to the terms of the Separation, 9,003 PSUs were vested on the Settlement Date and paid in cash on January 20, 2026.

On February 16, 2023, the reporting person was granted 6,762 restricted stock units subject to time vesting ("RSUs"). 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. The reporting person separated from Mativ Holdings, Inc. (the "Issuer") and ceased to serve as its Chief Financial Officer effective December 31, 2025 (the "Separation"). Pursuant to the terms of the Separation, 2,159 RSUs were vested on January 16, 2026 (the "Settlement Date") and paid in cash on January 20, 2026. 95 RSUs remained unvested and were forfeited by the reporting person, and no shares will be issued with respect to any portion of the unvested award.

On April 26, 2024, the reporting person was granted 21,033 RSUs. 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 upon vesting. Pursuant to the terms of the Separation, 8,797 RSUs were vested in shares on the Settlement Date, 2,648 of such vested shares were withheld to satisfy tax withholding obligations, and the remaining 6,149 of such vested shares issued to the reporting person.

These shares represent the shares withheld to satisfy tax withholding obligations arising from the prorated vesting of RSUs granted on April 26, 2024.

On March 19, 2025, the reporting person was granted 35,461 RSUs (as disclosed in Table I on the reporting person's Form 4 filed with the Commission on March 21, 2025). Such RSUs vest in three equal annual installments beginning on March 19, 2026, and each anniversary thereafter. Each RSU represents a right to receive one share of the common stock of the issuer upon vesting. Pursuant to the terms of the Separation, 9,294 RSUs were vested in shares on the Settlement Date, 2,798 of such vested shares were withheld to satisfy tax withholding obligations, and the remaining 6,496 of such vested shares issued to the reporting person. 26,167 RSUs remained unvested and were forfeited by the reporting person, and no shares will be issued with respect to any portion of the unvested award.

These shares represent shares that remained unvested and were forfeited by the reporting person for RSUs granted on March 19, 2025.