Results of Operations and Financial Condition On August 5, 2026, Mativ Holdings, Inc. issued a press release announcing its financial results for the quarter ended June 30, 2026. The press release is attached hereto as Exhibit 99.1. This information shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934 (the "Exchange Act") or otherwise subject to the liability of that section, nor shall it be deemed incorporated by reference in any filing under the Secu…

Director — Bruce Hausmann: Appointment of a new director to the Board.

Results of Operations and Financial Condition On May 6, 2026, Mativ Holdings, Inc. issued a press release announcing its financial results for the quarter ended March 31, 2026. The press release is attached hereto as Exhibit 99.1. This information shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934 (the "Exchange Act") or otherwise subject to the liability of that section, nor shall it be deemed incorporated by reference in any filing under the Securi…

Approval of an amendment to the equity and incentive plan.

of this Report, including Exhibit 99.1, shall not be deemed to be "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference into any registration statement or other document filed under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such filing. SOURCE: Mativ Holdings, In…

Entry into a Material Definitive Agreement On April 3, 2026, Mativ Holdings, Inc. (“Mativ” or the “Company”) entered into the Ninth Amendment (the “Amendment”) to Mativ’s multicurrency credit agreement, dated as of September 25, 2018 (as amended prior to such date, including by the Eighth Amendment dated December 17, 2024, the “Prior Agreement,” and the Prior Agreement as amended by the Amendment, the “Amended Credit Agreement”). The Amendment is effective as of April 3, 2026. The Amendment p…

Group President — Ryan Elwart: Ryan Elwart resigned to pursue other opportunities.

Results of Operations and Financial Condition On February 18, 2026, Mativ Holdings, Inc. issued a press release announcing its financial results for the quarter ended December 31, 2025. The press release is attached hereto as Exhibit 99.1. This information shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934 (the "Exchange Act") or otherwise subject to the liability of that section, nor shall it be deemed incorporated by reference in any filing under t…

President and Chief Executive Officer — Shruti Singhal: Amendment to the Offer Letter for Shruti Singhal, including changes in compensation and severance obligations.

Chief Financial Officer — Gregory Weitzel: The CFO is departing the company with a separation agreement.

Chief Financial Officer — Scott Minder: Appointment of a new Chief Financial Officer from an external hire.

Director — Deborah Borg: Deborah Borg was appointed as an independent director and to serve on the Nominating and Governance Committee and Compensation Committee.

Results of Operations and Financial Condition On November 5, 2025, Mativ Holdings, Inc. issued a press release announcing its financial results for the quarter ended September 30, 2025. The press release is attached hereto as Exhibit 99.1. This information shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934 (the "Exchange Act") or otherwise subject to the liability of that section, nor shall it be deemed incorporated by reference in any filing under t…

Results of Operations and Financial Condition On August 6, 2025, Mativ Holdings, Inc. issued a press release announcing its financial results for the quarter ended June 30, 2025. The press release is attached hereto as Exhibit 99.1. This information shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934 (the "Exchange Act") or otherwise subject to the liability of that section, nor shall it be deemed incorporated by reference in any filing under the Secu…

Chief Human Resources and Communications Officer — Michael W. Rickheim: Michael W. Rickheim departed from the Company as Chief Human Resources and Communications Officer.

Results of Operations and Financial Condition On May 7, 2025, Mativ Holdings, Inc. issued a press release announcing its financial results for the quarter ended March 31, 2025. The press release is attached hereto as Exhibit 99.1. This information shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934 (the "Exchange Act") or otherwise subject to the liability of that section, nor shall it be deemed incorporated by reference in any filing under the Securi…

Approval of an amendment to the equity and incentive plan.

Chief Executive Officer — Ms. Schertell: Ms. Schertell departed the Company and stepped down from her role as a member of the Board of Directors, treated as an involuntary termination without cause.

Results of Operations and Financial Condition On February 19, 2025, Mativ Holdings, Inc. issued a press release announcing its financial results for the quarter ended December 31, 2024. The press release is attached hereto as Exhibit 99.1. This information shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934 (the "Exchange Act") or otherwise subject to the liability of that section, nor shall it be deemed incorporated by reference in any filing under t…

Entry into a Material Definitive Agreement On December 17, 2024, Mativ Holdings, Inc. (“Mativ” or the “Company”) entered into the Eighth Amendment (the “Amendment”) to Mativ’s $1.793 billion multicurrency credit agreement, dated as of September 25, 2018 (as amended prior to such date, the “Prior Agreement”, and the Prior Agreement as amended by the Amendment, the “Amended Credit Agreement”). The Amendment is effective as of December 17, 2024. The Amendment increases the applicable rate margin…

Director — John D. Rogers, PhD: Dr. Rogers notified the Company of his intent not to stand for re-election to the Board at the 2025 annual meeting.

Results of Operations and Financial Condition On November 6, 2024, Mativ Holdings, Inc. issued a press release announcing its financial results for the quarter ended September 30, 2024. The press release is attached hereto as Exhibit 99.1. This information shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934 (the "Exchange Act") or otherwise subject to the liability of that section, nor shall it be deemed incorporated by reference in any filing under t…

Entry into a Material Definitive Agreement Indenture for 8.000% Senior Notes Due 2029 On October 7, 2024, Mativ Holdings, Inc. (the “Company”) closed its previously announced private offering of $400,000,000 of its 8.000% Senior Notes due 2029 (the “Notes”). The Notes were sold in a private placement in reliance on Rule 144A and Regulation S under the Securities Act of 1933, as amended (the “Securities Act”), pursuant to a purchase agreement between the Company, certain subsidiaries of the Co…

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant The information set forth in

Other Events On September 24, 2024, Mativ Holdings, Inc. (the “Company”) announced the pricing of its previously announced offering of $400,000,000 of its 8.000% senior notes due 2029 (the “Notes”) in a private offering that is exempt from registration under the Securities Act of 1933, as amended (the “Securities Act”). The transaction is scheduled to close on October 7, 2024, subject to customary closing conditions. The Company expects to use the proceeds from the offering of the Notes (i) t…