Results of Operations and Financial Condition. On August 4, 2026, Mattel, Inc. (“Mattel”) issued a press release regarding its second quarter 2026 financial results, a copy of which is furnished as Exhibit 99.1 hereto. This exhibit is incorporated herein by reference. In accordance with General Instruction B.2 of Form 8-K, the information in this Current Report on Form 8-K, including Exhibit 99.1, shall not be deemed to be “filed” for purposes of Section 18 of the Securities and Exchange Act…

President, Chief Marketing and Brand Officer — Roberto Stanichi: Roberto Stanichi was promoted to President, Chief Marketing and Brand Officer.

The filing describes an amendment to the equity and long-term compensation plan, not a management change.

Results of Operations and Financial Condition. On April 29, 2026, Mattel, Inc. (“Mattel”) issued a press release regarding its first quarter 2026 financial results, a copy of which is furnished as Exhibit 99.1 hereto. This exhibit is incorporated herein by reference. In accordance with General Instruction B.2 of Form 8-K, the information in this Current Report on Form 8-K, including Exhibit 99.1, shall not be deemed to be “filed” for purposes of Section 18 of the Securities and Exchange Act o…

President and Chief Commercial Officer — Steve Totzke: Steve Totzke is departing from his role as President and Chief Commercial Officer, with Sanjay Luthra succeeding him as Chief Commercial Officer.

above, the Company also announced that Mattel’s Board of Directors has authorized the Company to repurchase $1.5 billion of the Company’s shares. In accordance with General Instruction B.2 of Form 8-K, the information in this Current Report on Form 8-K, including Exhibit 99.1, shall not be deemed to be “filed” for purposes of Section 18 of the Securities and Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liability of that section, and shall not be incorpora…

Entry into a Material Definitive Agreement 5.000% Senior Notes due 2030 On November 17, 2025, Mattel, Inc. (the “Company”) issued $600,000,000 aggregate principal amount of 5.000% Senior Notes due 2030 (the “Notes”). The Notes were issued pursuant to a base indenture, dated November 17, 2025 (the “Base Indenture”) between the Company and U.S. Bank Trust Company, National Association, as trustee (the “Trustee”), as supplemented by the first supplemental indenture with respect to the Notes, dat…

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

Entry into a Material Definitive Agreement. On November 5, 2025, Mattel, Inc. (“Mattel” or the “Company”) entered into an underwriting agreement (the “Underwriting Agreement”) with BofA Securities, Inc., Citigroup Global Markets Inc., Wells Fargo Securities, LLC and Goldman Sachs & Co. LLC, as representatives of the several underwriters named therein (the “Underwriters”), in connection with the Company’s previously announced underwritten public offering (the “Offering”) of $600,000,000 aggreg…

Results of Operations and Financial Condition. On October 21, 2025, Mattel, Inc. (“Mattel”) issued a press release regarding its third quarter 2025 financial results, a copy of which is furnished as Exhibit 99.1 hereto. This exhibit is incorporated herein by reference. In accordance with General Instruction B.2 of Form 8-K, the information in this Current Report on Form 8-K, including Exhibit 99.1, shall not be deemed to be “filed” for purposes of Section 18 of the Securities and Exchange Act…

Results of Operations and Financial Condition. On July 23, 2025, Mattel, Inc. (“Mattel”) issued a press release regarding its second quarter 2025 financial results, a copy of which is furnished as Exhibit 99.1 hereto. This exhibit is incorporated herein by reference. In accordance with General Instruction B.2 of Form 8-K, the information in this Current Report on Form 8-K, including Exhibit 99.1, shall not be deemed to be “filed” for purposes of Section 18 of the Securities and Exchange Act o…

CFO — Paul Ruh: The filing announces the appointment of an external candidate, Paul Ruh, as the new CFO, replacing Anthony DiSilvestro in an orderly succession.

Results of Operations and Financial Condition. On May 5, 2025, Mattel, Inc. (“Mattel”) issued a press release regarding its first quarter 2025 financial results, a copy of which is furnished as Exhibit 99.1 hereto. This exhibit is incorporated herein by reference. In accordance with General Instruction B.2 of Form 8-K, the information in this Current Report on Form 8-K, including Exhibit 99.1, shall not be deemed to be “filed” for purposes of Section 18 of the Securities and Exchange Act of 1…

Results of Operations and Financial Condition. On February 4, 2025, Mattel, Inc. (“Mattel”) issued a press release regarding its fourth quarter and full year 2024 financial results, a copy of which is furnished as Exhibit 99.1 hereto. This exhibit is incorporated herein by reference. In accordance with General Instruction B.2 of Form 8-K, the information in this Current Report on Form 8-K, including Exhibit 99.1, shall not be deemed to be “filed” for purposes of Section 18 of the Securities a…

CFO — Anthony DiSilvestro: The CFO is retiring with a planned transition period and search process, representing an orderly succession rather than a sudden loss.

Results of Operations and Financial Condition. On October 23, 2024, Mattel, Inc. (“Mattel”) issued a press release regarding its third quarter 2024 financial results, a copy of which is furnished as Exhibit 99.1 hereto. This exhibit is incorporated herein by reference. In accordance with General Instruction B.2 of Form 8-K, the information in this Current Report on Form 8-K, including Exhibit 99.1, shall not be deemed to be “filed” for purposes of Section 18 of the Securities and Exchange Act…

CEO — Ynon Kreiz: The filing discloses a one-time retention equity grant to the CEO, which is a compensatory arrangement rather than a departure, appointment, or board election.

Results of Operations and Financial Condition. On July 23, 2024, Mattel, Inc. (“Mattel”) issued a press release regarding its second quarter 2024 financial results, a copy of which is furnished as Exhibit 99.1 hereto. This exhibit is incorporated herein by reference. In accordance with General Instruction B.2 of Form 8-K, the information in this Current Report on Form 8-K, including Exhibit 99.1, shall not be deemed to be “filed” for purposes of Section 18 of the Securities and Exchange Act o…

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

Entry into a Material Definitive Agreement New Revolving Credit Facility On July 15, 2024, Mattel, Inc. (the “Company”) entered into a revolving credit agreement (the “Credit Agreement”) among the Company, as the borrower (in such capacity, the “Borrower”), Bank of America, N.A., as administrative agent, and the other lenders and financial institutions party thereto, providing for $1,400,000,000 in aggregate principal amount of senior unsecured revolving credit facilities (the “new revolving…

Termination of a Material Definitive Agreement. On July 15, 2024, in connection with the entry into the Credit Agreement, the Company terminated the commitments and satisfied all outstanding obligations under that certain Revolving Credit Agreement, dated as of September 15, 2022 (as amended to date), by and among the Company, as the borrower, Bank of America, N.A., as administrative agent, and the other lenders and financial institutions party thereto . Section 2 – Financial Information

The filing discloses an amendment to the company's equity compensation plan, which is a non-management matter mis-filed under Item 5.02.

Results of Operations and Financial Condition. On April 23, 2024, Mattel, Inc. (“Mattel”) issued a press release regarding its first quarter 2024 financial results, a copy of which is furnished as Exhibit 99.1 hereto. This exhibit is incorporated herein by reference. In accordance with General Instruction B.2 of Form 8-K, the information in this Current Report on Form 8-K, including Exhibit 99.1, shall not be deemed to be “filed” for purposes of Section 18 of the Securities and Exchange Act o…

Director — Michael Dolan: The filing discloses that a long-serving independent director will not stand for re-election at the upcoming annual meeting, which is a routine board succession event rather than a sudden executive departure.