MATV

SEC source: 0001971783-26-000003 · primarydocument.xml · nonDerivative · entry 10

Weitzel Gregory Thomas · CIK 0001971783 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,522

F7 · price: On February 16, 2023, the reporting person was granted a target number of 2,648 restricted stock units subject to performance and time-based vesting ("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, 2,351 PSUs were vested on the Settlement Date and paid in cash on January 20, 2026.

F8 · price: The transaction reflects the cash settlement of 2,351 vested PSUs.

SEC source: 0001971783-26-000003 · primarydocument.xml · nonDerivative · entry 9

Weitzel Gregory Thomas · CIK 0001971783 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,873

F7 · price: On February 16, 2023, the reporting person was granted a target number of 2,648 restricted stock units subject to performance and time-based vesting ("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, 2,351 PSUs were vested on the Settlement Date and paid in cash on January 20, 2026.

SEC source: 0001971783-26-000003 · primarydocument.xml · nonDerivative · entry 8

Weitzel Gregory Thomas · CIK 0001971783 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,522

F5 · price: 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.

F6 · price: These shares represent shares that remained unvested and were forfeited by the reporting person for RSUs granted on March 19, 2025.

SEC source: 0001971783-26-000003 · primarydocument.xml · nonDerivative · entry 7

Weitzel Gregory Thomas · CIK 0001971783 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 44,689

F5 · price: 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.

SEC source: 0001971783-26-000003 · primarydocument.xml · nonDerivative · entry 6

Weitzel Gregory Thomas · CIK 0001971783 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,487

F3 · price: 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.

F4 · price: These shares represent the shares withheld to satisfy tax withholding obligations arising from the prorated vesting of RSUs granted on April 26, 2024.

SEC source: 0001971783-26-000003 · primarydocument.xml · nonDerivative · entry 5

Weitzel Gregory Thomas · CIK 0001971783 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50,135

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · price: 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.

SEC source: 0001971783-26-000003 · primarydocument.xml · nonDerivative · entry 4

Weitzel Gregory Thomas · CIK 0001971783 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 43,986

F2 · price: 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.

SEC source: 0001971783-26-000003 · primarydocument.xml · nonDerivative · entry 3

Weitzel Gregory Thomas · CIK 0001971783 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 44,550

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · price: 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.

SEC source: 0001971783-26-000003 · primarydocument.xml · nonDerivative · entry 2

Weitzel Gregory Thomas · CIK 0001971783 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 43,986

F1 · price: 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.

SEC source: 0001971783-26-000003 · primarydocument.xml · nonDerivative · entry 1

Weitzel Gregory Thomas · CIK 0001971783 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,145

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: 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.

SEC source: 0001226577-26-000002 · primarydocument.xml · derivative · entry 3

COOK WILLIAM M · CIK 0001226577 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 58,023

Underlying: Common Stock · 793 shares

Expires not disclosed

F3 · security: Represents quarterly cash and committee meeting retainers deferred pursuant to the Director's election in accordance with the Non-Employee Directors Deferred Compensation Plan.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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.

SEC source: 0001226577-26-000002 · primarydocument.xml · derivative · entry 2

COOK WILLIAM M · CIK 0001226577 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 57,230

Underlying: Common Stock · 306 shares

Expires not disclosed

F1 · security: Represents in-kind dividends credited pursuant to the Director's election under the Non-Employee Directors Deferred Compensation Plan.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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.

SEC source: 0001663373-25-000012 · primarydocument.xml · nonDerivative · entry 1

Borg Deborah · CIK 0001663373 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,010

F1 · shares: Represents Reporting Person's prorated annual stock retainer pursuant to the Company's Outside Directors Stock Plan.

SEC source: 0001226577-25-000006 · primarydocument.xml · derivative · entry 4

COOK WILLIAM M · CIK 0001226577 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 56,924

Underlying: Common Stock · 1,271 shares

Expires not disclosed

F4 · security: 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.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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.

SEC source: 0001226577-25-000006 · primarydocument.xml · derivative · entry 3

COOK WILLIAM M · CIK 0001226577 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 55,653

Underlying: Common Stock · 439 shares

Expires not disclosed

F3 · security: Represents in-kind dividends credited pursuant to the Director's election under the Non-Employee Directors Deferred Compensation Plan.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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.

SEC source: 0001562180-25-006072 · primarydocument.xml · derivative · entry 3

JOHNSON MARK W · CIK 0001802219 · CLO and Corporate Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,444

Underlying: Common Stock · 6,443 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: 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. 6,443 RSUs vested on September 1, 2025.

F1 · shares: 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. 6,443 RSUs vested on September 1, 2025.

F1 · price: 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. 6,443 RSUs vested on September 1, 2025.

F1 · derivative.exercise_date: 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. 6,443 RSUs vested on September 1, 2025.

F1 · derivative.expiration_date: 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. 6,443 RSUs vested on September 1, 2025.

SEC source: 0001562180-25-006072 · primarydocument.xml · nonDerivative · entry 2

JOHNSON MARK W · CIK 0001802219 · CLO and Corporate Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 123,608

F1 · price: 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. 6,443 RSUs vested on September 1, 2025.

F2 · price: The transaction reflects the cash settlement of 6,443 vested RSUs.

SEC source: 0001562180-25-006072 · primarydocument.xml · nonDerivative · entry 1

JOHNSON MARK W · CIK 0001802219 · CLO and Corporate Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 130,051

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: 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. 6,443 RSUs vested on September 1, 2025.

SEC source: 0001562180-25-005263 · primarydocument.xml · derivative · entry 3

Ritrievi Kimberly E · CIK 0001592089 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 39,943

Underlying: Common Stock · 382 shares

Expires not disclosed

F3 · security: Represents in-kind dividends credited pursuant to the Director's election under the Non-Employee Directors Deferred Compensation Plan.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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.

SEC source: 0001562180-25-005263 · primarydocument.xml · derivative · entry 2

Ritrievi Kimberly E · CIK 0001592089 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 39,561

Underlying: Common Stock · 18,328 shares

Expires not disclosed

F1 · security: Represents an annual equity retainer of Restricted Stock Units ("RSUs") vesting on July 1, 2026, and granted 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.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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.

SEC source: 0001562180-25-005262 · primarydocument.xml · nonDerivative · entry 1

Levi Marco · CIK 0001703841 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 62,700

F1 · shares: Represents an annual equity retainer of Restricted Stock Units ("RSUs") vesting on July 1, 2026, and granted pursuant to the Company's Outside Director Stock Plan.

F2 · balance_after: The balance was adjusted to account for a scrivener's error in the amount of securities beneficially owned resulting in the over reporting of 360 shares on April 3, 2025.

SEC source: 0001562180-25-005261 · primarydocument.xml · nonDerivative · entry 1

Stipancich John K · CIK 0001479933 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,441

F1 · shares: Represents an annual equity retainer of Restricted Stock Units ("RSUs") vesting on July 1, 2026, and granted pursuant to the Company's Outside Director Stock Plan.

SEC source: 0001562180-25-005260 · primarydocument.xml · derivative · entry 3

COOK WILLIAM M · CIK 0001226577 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 53,106

Underlying: Common Stock · 615 shares

Expires not disclosed

F3 · security: Represents in-kind dividends credited pursuant to the Director's election under the Non-Employee Directors Deferred Compensation Plan.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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.

SEC source: 0001562180-25-005260 · primarydocument.xml · derivative · entry 2

COOK WILLIAM M · CIK 0001226577 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 52,491

Underlying: Common Stock · 18,328 shares

Expires not disclosed

F1 · security: Represents an annual equity retainer of Restricted Stock Units ("RSUs") vesting on July 1, 2026, and granted 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.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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.

SEC source: 0001562180-25-005259 · primarydocument.xml · derivative · entry 7

Downard Andrew · CIK 0002013794 · Chief Supply Chain Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 8,364 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_price: In connection with the reporting person's departure from the Company, the Board approved the accelerated vesting of 8,364 restricted stock units originally granted on April 26, 2024, which would have fully vested on February 13, 2027.

F4 · shares: In connection with the reporting person's departure from the Company, the Board approved the accelerated vesting of 8,364 restricted stock units originally granted on April 26, 2024, which would have fully vested on February 13, 2027.

F4 · price: In connection with the reporting person's departure from the Company, the Board approved the accelerated vesting of 8,364 restricted stock units originally granted on April 26, 2024, which would have fully vested on February 13, 2027.

F4 · derivative.exercise_date: In connection with the reporting person's departure from the Company, the Board approved the accelerated vesting of 8,364 restricted stock units originally granted on April 26, 2024, which would have fully vested on February 13, 2027.

F4 · derivative.expiration_date: In connection with the reporting person's departure from the Company, the Board approved the accelerated vesting of 8,364 restricted stock units originally granted on April 26, 2024, which would have fully vested on February 13, 2027.

SEC source: 0001562180-25-005259 · primarydocument.xml · derivative · entry 6

Downard Andrew · CIK 0002013794 · Chief Supply Chain Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,200 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: In connection with the reporting person's departure from Mativ Holdings, Inc. (the "Company"), the Board approved the accelerated vesting of 1,200 restricted stock units originally granted on January 30, 2024, which would have fully vested on February 16, 2026.

F1 · shares: In connection with the reporting person's departure from Mativ Holdings, Inc. (the "Company"), the Board approved the accelerated vesting of 1,200 restricted stock units originally granted on January 30, 2024, which would have fully vested on February 16, 2026.

F1 · price: In connection with the reporting person's departure from Mativ Holdings, Inc. (the "Company"), the Board approved the accelerated vesting of 1,200 restricted stock units originally granted on January 30, 2024, which would have fully vested on February 16, 2026.

F1 · derivative.exercise_date: In connection with the reporting person's departure from Mativ Holdings, Inc. (the "Company"), the Board approved the accelerated vesting of 1,200 restricted stock units originally granted on January 30, 2024, which would have fully vested on February 16, 2026.

F1 · derivative.expiration_date: In connection with the reporting person's departure from Mativ Holdings, Inc. (the "Company"), the Board approved the accelerated vesting of 1,200 restricted stock units originally granted on January 30, 2024, which would have fully vested on February 16, 2026.

SEC source: 0001562180-25-005259 · primarydocument.xml · nonDerivative · entry 5

Downard Andrew · CIK 0002013794 · Chief Supply Chain Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,181

F5 · price: Represents shares withheld in payment of tax liability resulting from the accelerated vesting of previously reported restricted stock units, in connection with the reporting person's departure from the Company.

F6 · price: In connection with the reporting person's departure from the Company, the Board approved the accelerated vesting of 17,913 restricted stock units originally granted on March 19, 2025, which would have fully vested on March 19, 2028.

SEC source: 0001562180-25-005259 · primarydocument.xml · nonDerivative · entry 4

Downard Andrew · CIK 0002013794 · Chief Supply Chain Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,542

F4 · price: In connection with the reporting person's departure from the Company, the Board approved the accelerated vesting of 8,364 restricted stock units originally granted on April 26, 2024, which would have fully vested on February 13, 2027.

F5 · price: Represents shares withheld in payment of tax liability resulting from the accelerated vesting of previously reported restricted stock units, in connection with the reporting person's departure from the Company.

SEC source: 0001562180-25-005259 · primarydocument.xml · nonDerivative · entry 3

Downard Andrew · CIK 0002013794 · Chief Supply Chain Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,060

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · price: In connection with the reporting person's departure from the Company, the Board approved the accelerated vesting of 8,364 restricted stock units originally granted on April 26, 2024, which would have fully vested on February 13, 2027.

SEC source: 0001562180-25-005259 · primarydocument.xml · nonDerivative · entry 2

Downard Andrew · CIK 0002013794 · Chief Supply Chain Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,696

F1 · price: In connection with the reporting person's departure from Mativ Holdings, Inc. (the "Company"), the Board approved the accelerated vesting of 1,200 restricted stock units originally granted on January 30, 2024, which would have fully vested on February 16, 2026.

F3 · price: The transaction reflects the accelerated cash settlement of 1,200 vested RSUs on July 1, 2025.

SEC source: 0001562180-25-005259 · primarydocument.xml · nonDerivative · entry 1

Downard Andrew · CIK 0002013794 · Chief Supply Chain Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,896

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: In connection with the reporting person's departure from Mativ Holdings, Inc. (the "Company"), the Board approved the accelerated vesting of 1,200 restricted stock units originally granted on January 30, 2024, which would have fully vested on February 16, 2026.

F2 · balance_after: The balance was adjusted to account for the over reporting of 82 shares on March 14, 2025.

SEC source: 0001226577-25-000006 · primarydocument.xml · derivative · entry 2

COOK WILLIAM M · CIK 0001226577 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 55,214

Underlying: Common Stock · 2,108 shares

Expires not disclosed

F1 · security: 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.

F2 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: 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.

SEC source: 0001562180-25-004630 · primarydocument.xml · nonDerivative · entry 1

Stipancich John K · CIK 0001479933 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,113

F1 · shares: Open market purchase.

F2 · price: This transaction was executed in multiple trades at prices ranging from $6.39 to $6.40. The price reported above reflects the weighted average purchase price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001562180-25-004495 · primarydocument.xml · derivative · entry 12

Rickheim Michael W · CIK 0001808077 · CHRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 11,070 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: On April 26, 2024, the reporting person was granted 16,605 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. Upon the Resignation, an additional 4,792 RSUs vested and settled in cash on June 3, 2025, and the unvested 6,278 RSUs were forfeited and no shares will be issued with respect to any portion of the unvested award.

F2 · shares: On April 26, 2024, the reporting person was granted 16,605 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. Upon the Resignation, an additional 4,792 RSUs vested and settled in cash on June 3, 2025, and the unvested 6,278 RSUs were forfeited and no shares will be issued with respect to any portion of the unvested award.

F2 · price: On April 26, 2024, the reporting person was granted 16,605 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. Upon the Resignation, an additional 4,792 RSUs vested and settled in cash on June 3, 2025, and the unvested 6,278 RSUs were forfeited and no shares will be issued with respect to any portion of the unvested award.

F2 · derivative.exercise_date: On April 26, 2024, the reporting person was granted 16,605 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. Upon the Resignation, an additional 4,792 RSUs vested and settled in cash on June 3, 2025, and the unvested 6,278 RSUs were forfeited and no shares will be issued with respect to any portion of the unvested award.

F2 · derivative.expiration_date: On April 26, 2024, the reporting person was granted 16,605 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. Upon the Resignation, an additional 4,792 RSUs vested and settled in cash on June 3, 2025, and the unvested 6,278 RSUs were forfeited and no shares will be issued with respect to any portion of the unvested award.

SEC source: 0001562180-25-004495 · primarydocument.xml · derivative · entry 11

Rickheim Michael W · CIK 0001808077 · CHRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,274 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: On February 16, 2023, the reporting person was granted 6,822 restricted stock units ("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. The reporting person resigned as the Mativ Holdings, Inc.'s Chief Human Resources and Communications Officer effective June 1, 2025 (the "Resignation"); as such, an additional 1,736 RSUs vested and settled in cash on June 3, 2025, and the unvested 538 RSUs were forfeited and no shares will be issued with respect to any portion of the unvested award.

F1 · shares: On February 16, 2023, the reporting person was granted 6,822 restricted stock units ("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. The reporting person resigned as the Mativ Holdings, Inc.'s Chief Human Resources and Communications Officer effective June 1, 2025 (the "Resignation"); as such, an additional 1,736 RSUs vested and settled in cash on June 3, 2025, and the unvested 538 RSUs were forfeited and no shares will be issued with respect to any portion of the unvested award.

F1 · price: On February 16, 2023, the reporting person was granted 6,822 restricted stock units ("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. The reporting person resigned as the Mativ Holdings, Inc.'s Chief Human Resources and Communications Officer effective June 1, 2025 (the "Resignation"); as such, an additional 1,736 RSUs vested and settled in cash on June 3, 2025, and the unvested 538 RSUs were forfeited and no shares will be issued with respect to any portion of the unvested award.

F1 · derivative.exercise_date: On February 16, 2023, the reporting person was granted 6,822 restricted stock units ("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. The reporting person resigned as the Mativ Holdings, Inc.'s Chief Human Resources and Communications Officer effective June 1, 2025 (the "Resignation"); as such, an additional 1,736 RSUs vested and settled in cash on June 3, 2025, and the unvested 538 RSUs were forfeited and no shares will be issued with respect to any portion of the unvested award.

F1 · derivative.expiration_date: On February 16, 2023, the reporting person was granted 6,822 restricted stock units ("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. The reporting person resigned as the Mativ Holdings, Inc.'s Chief Human Resources and Communications Officer effective June 1, 2025 (the "Resignation"); as such, an additional 1,736 RSUs vested and settled in cash on June 3, 2025, and the unvested 538 RSUs were forfeited and no shares will be issued with respect to any portion of the unvested award.

SEC source: 0001562180-25-004495 · primarydocument.xml · nonDerivative · entry 10

Rickheim Michael W · CIK 0001808077 · CHRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 65,763

F3 · price: Shares withheld to satisfy tax withholding obligation arising upon the vesting of RSUs.

F6 · price: On March 19, 2025, the reporting person was granted 23,708 RSUs subject to time vesting. 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. Upon the Resignation, 1,602 RSUs vested, and the unvested 22,106 RSUs were forfeited and no shares will be issued with respect to any portion of the unvested award.

SEC source: 0001562180-25-004495 · primarydocument.xml · nonDerivative · entry 9

Rickheim Michael W · CIK 0001808077 · CHRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 66,486

F6 · price: On March 19, 2025, the reporting person was granted 23,708 RSUs subject to time vesting. 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. Upon the Resignation, 1,602 RSUs vested, and the unvested 22,106 RSUs were forfeited and no shares will be issued with respect to any portion of the unvested award.

SEC source: 0001562180-25-004495 · primarydocument.xml · nonDerivative · entry 8

Rickheim Michael W · CIK 0001808077 · CHRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 88,592

F3 · price: Shares withheld to satisfy tax withholding obligation arising upon the vesting of RSUs.

F5 · price: On March 19, 2025, the reporting person was granted a target number of 35,563 RSUs subject to performance and time-based vesting. Each RSU represents a right to receive one share of the common stock of the issuer and/or cash upon vesting. Upon the Resignation, the reporting person was entitled to 2,403 vested RSUs.

SEC source: 0001562180-25-004495 · primarydocument.xml · nonDerivative · entry 7

Rickheim Michael W · CIK 0001808077 · CHRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 89,676

F5 · price: On March 19, 2025, the reporting person was granted a target number of 35,563 RSUs subject to performance and time-based vesting. Each RSU represents a right to receive one share of the common stock of the issuer and/or cash upon vesting. Upon the Resignation, the reporting person was entitled to 2,403 vested RSUs.

SEC source: 0001562180-25-004495 · primarydocument.xml · nonDerivative · entry 6

Rickheim Michael W · CIK 0001808077 · CHRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 87,273

F3 · price: Shares withheld to satisfy tax withholding obligation arising upon the vesting of RSUs.

F4 · price: On April 26, 2024, the reporting person was granted a target number of 24,908 RSUs subject to performance and time-based vesting. Each RSU represents a right to receive one share of the common stock of the issuer and/or cash upon vesting. Upon the Resignation, the reporting person was entitled to 11,321 vested RSUs.

SEC source: 0001562180-25-004495 · primarydocument.xml · nonDerivative · entry 5

Rickheim Michael W · CIK 0001808077 · CHRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 92,342

F4 · price: On April 26, 2024, the reporting person was granted a target number of 24,908 RSUs subject to performance and time-based vesting. Each RSU represents a right to receive one share of the common stock of the issuer and/or cash upon vesting. Upon the Resignation, the reporting person was entitled to 11,321 vested RSUs.

SEC source: 0001562180-25-004495 · primarydocument.xml · nonDerivative · entry 4

Rickheim Michael W · CIK 0001808077 · CHRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 81,021

F2 · price: On April 26, 2024, the reporting person was granted 16,605 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. Upon the Resignation, an additional 4,792 RSUs vested and settled in cash on June 3, 2025, and the unvested 6,278 RSUs were forfeited and no shares will be issued with respect to any portion of the unvested award.

F3 · price: Shares withheld to satisfy tax withholding obligation arising upon the vesting of RSUs.

SEC source: 0001562180-25-004495 · primarydocument.xml · nonDerivative · entry 3

Rickheim Michael W · CIK 0001808077 · CHRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 83,183

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · price: On April 26, 2024, the reporting person was granted 16,605 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. Upon the Resignation, an additional 4,792 RSUs vested and settled in cash on June 3, 2025, and the unvested 6,278 RSUs were forfeited and no shares will be issued with respect to any portion of the unvested award.

SEC source: 0001562180-25-004495 · primarydocument.xml · nonDerivative · entry 2

Rickheim Michael W · CIK 0001808077 · CHRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 78,391

F1 · price: On February 16, 2023, the reporting person was granted 6,822 restricted stock units ("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. The reporting person resigned as the Mativ Holdings, Inc.'s Chief Human Resources and Communications Officer effective June 1, 2025 (the "Resignation"); as such, an additional 1,736 RSUs vested and settled in cash on June 3, 2025, and the unvested 538 RSUs were forfeited and no shares will be issued with respect to any portion of the unvested award.

SEC source: 0001562180-25-004495 · primarydocument.xml · nonDerivative · entry 1

Rickheim Michael W · CIK 0001808077 · CHRO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 80,127

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: On February 16, 2023, the reporting person was granted 6,822 restricted stock units ("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. The reporting person resigned as the Mativ Holdings, Inc.'s Chief Human Resources and Communications Officer effective June 1, 2025 (the "Resignation"); as such, an additional 1,736 RSUs vested and settled in cash on June 3, 2025, and the unvested 538 RSUs were forfeited and no shares will be issued with respect to any portion of the unvested award.

SEC source: 0001562180-25-004358 · primarydocument.xml · nonDerivative · entry 1

Levi Marco · CIK 0001703841 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 44,732

F1 · kind: Open market purchase.

F2 · price: This transaction was executed in multiple trades at prices ranging from $5.72 to $5.83. The price reported above reflects the weighted average purchase price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001562180-25-004287 · primarydocument.xml · nonDerivative · entry 1

Ritrievi Kimberly E · CIK 0001592089 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,640

F1 · kind: Open market purchase.

SEC source: 0001562180-25-004286 · primarydocument.xml · nonDerivative · entry 1

Singhal Shruti · CIK 0001698686 · Director · President, CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 56,533

F1 · kind: Open market purchase.

F2 · price: This transaction was executed in multiple trades at prices ranging from $5.72 to $5.85. The price reported above reflects the weighted average purchase price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001562180-25-004291 · primarydocument.xml · nonDerivative · entry 1

COOK WILLIAM M · CIK 0001226577 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,436

F1 · kind: Open market purchase.

F2 · price: This transaction was executed in multiple trades at prices ranging from $5.82 to $5.86. The price reported above reflects the weighted average purchase price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001562180-25-004140 · primarydocument.xml · nonDerivative · entry 1

Elwart Ryan Michael · CIK 0002013323 · Group President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 143,037

F1 · price: Represents a grant of restricted stock units ("RSUs"). Each RSU represents a right to receive one share of the Issuer's common stock upon vesting. Each RSU will vest on the second anniversary of the grant date subject to Reporting Person's employment or service with the Issuer as contemplated in the RSU Agreement.