Annual Meeting •  Voting Instruction Form

Meeting Date: May 28, 2025 1:00 PM Local Time

Instructions

Any resolution(s) not voted will be voted with The Board of Directors if there is a Board of Directors recommendation indicated.


1. Election of Directors Ask Professor Proxy
1a. Adriana Cisneros

Board of Directors Recommended Vote: For

1b. Diana Ferguson

Board of Directors Recommended Vote: For

1c. Julius Genachowski

Board of Directors Recommended Vote: For

1d. Prof. Noreena Hertz

Board of Directors Recommended Vote: For

1e. Ynon Kreiz

Board of Directors Recommended Vote: For

1f. Soren Laursen

Board of Directors Recommended Vote: For

1g. Roger Lynch

Board of Directors Recommended Vote: For

1h. Dominic Ng

Board of Directors Recommended Vote: For

1i. Dr. Judy Olian

Board of Directors Recommended Vote: For

1j. Dawn Ostroff

Board of Directors Recommended Vote: For

2. Ask Professor Proxy
Ratification of Selection of PricewaterhouseCoopers LLP as Mattels, Inc.'s Independent Registered Public Accounting Firm for the Year Ending December 31, 2025.

Board of Directors Recommended Vote: For

3. Ask Professor Proxy
Advisory Vote to Approve Named Executive Officer Compensation (“Say-on-Pay”), as described in the Mattel, Inc. Proxy Statement.

Board of Directors Recommended Vote: For

4. Ask Professor Proxy
Approval of an Amendment to Mattel, Inc.'s Restated Certificate of Incorporation to Provide for Officer Exculpation as Permitted by Delaware Law.

Board of Directors Recommended Vote: For

5. Ask Professor Proxy
Stockholder proposal to disclose plan to reduce total contribution to climate change.

Board of Directors Recommended Vote: Against

Ask Professor Proxy
The transaction of such other business as may properly come before the meeting.