MATTEL INC DE

SIGNATURE

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: March 15, 2024

POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that we, the undersigned directors and officers of Mattel, Inc., do hereby severally constitute and appoint Jonathan Anschell, Tiffani Magri, and Ynon Kreiz, and each of them, our true and lawful attorneys-in-fact and agents, each with full powers of substitution, to do any and all acts and things in our name and behalf in our capacities as directors and officers and to execute any and all instruments for us and in our names in the capacities indicated below, which said attorneys-in-fact and agents, or any of them, may deem necessary or advisable to enable Mattel, Inc. to comply with the Securities Exchange Act of 1934, as amended, and any rules, regulations and requirements of the Securities and Exchange Commission, in connection with this Annual Report on Form 10-K, including specifically, but without limitation, power and authority to sign for us or any of us, in our names in the capacities indicated below, any and all amendments hereto; and we do each hereby ratify and confirm all that said attorneys-in-fact and agents or their substitutes, or any one of them, shall do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

SCHEDULE II

VALUATION AND QUALIFYING ACCOUNTS AND ALLOWANCES

(a)Includes write-offs, recoveries of previous write-offs, and currency translation adjustments.

(b)For the year ended December 31, 2023, the additions primarily represent the establishment of a valuation allowance of $212.4 million on certain foreign deferred tax assets during the third quarter of 2023 resulting from the intragroup transfer of certain IP rights and increases related to losses and credits without benefit. For the years ended December 31, 2022 and 2021, the additions represent increases related to losses and credits without benefit. See Item 8 "Financial Statements and Supplementary Data – Note 16 to the Consolidated Financial Statements – Income Taxes" for additional details.

(c)For the year ended December 31, 2023, the deductions primarily represent the subsequent write-off of the $212.4 million of foreign deferred tax assets that were reserved for in the third quarter of 2023 and projected utilization of loss carryforwards. For the year ended December 31, 2022, the deductions primarily included projected utilization of loss carryforwards and credits. For the year ended December 31, 2021, the deductions primarily related to the reversal of the valuation allowances on certain U.S. federal, state, and foreign deferred tax assets. See Item 8 "Financial Statements and Supplementary Data – Note 16 to the Consolidated Financial Statements – Income Taxes" for additional details.