MATTEL INC /DE/ — Director's Dealing 2025

Apr 30, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MATTEL INC /DE/ (MAT)
CIK: 0000063276
Period of Report: 2025-04-28

Reporting Person: Hugh Yoon J. (SVP & Corporate Controller)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-04-28	Common Stock	M	4278	—	Acquired	25134	Direct
2025-04-28	Common Stock	F	1531	$15.72	Disposed	23603	Direct
2025-04-28	Common Stock	M	1620	—	Acquired	25223	Direct
2025-04-28	Common Stock	F	580	$15.72	Disposed	24643	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-04-28	Restricted Stock Units	$	M	4278	Disposed		Common Stock (4278)	Direct
2025-04-28	Restricted Stock Units	$	M	1620	Disposed		Common Stock (1620)	Direct

Footnotes

F1: As reported on a Form 4 dated April 28, 2023 and filed on May 2, 2023, the Reporting Person received a grant of 12,963 Restricted Stock Units ("RSUs" or "Units") on April 28, 2023. The RSUs vest as to (a) 33% of the Units granted on the first anniversary of the date of grant, (b) an additional 33% of the Units granted on the second anniversary of the date of grant, and (c) the remaining 34% of the Units granted on the third anniversary of the date of grant. On each vesting date, for each Unit vesting on such date, the Reporting Person will receive one share of Mattel, Inc. Common Stock, subject to tax withholding. On April 28, 2025, the second 33% of these RSUs vested, resulting in the issuance of 4,278 shares of Mattel, Inc. Common Stock.

F2: Pursuant to the terms of the April 28, 2023 RSU grant, 1,531 shares of Mattel, Inc. Common Stock were automatically withheld at vesting to cover required tax withholding.

F3: As reported on a Form 4 dated April 28, 2023 and filed on May 2, 2023, the Reporting Person received a grant of 1,620 Restricted Stock Units ("RSUs" or "Units") on April 28, 2023. The RSUs vest as to 100% of the Units granted on the second anniversary of the date of grant. On the vesting date, for each Unit vesting on such date, the Reporting Person will receive one share of Mattel, Inc. Common Stock, subject to tax withholding. On April 28, 2025, 100% of these RSUs vested, resulting in the issuance of 1,620 shares of Mattel, Inc. Common Stock.

F4: Pursuant to the terms of the April 28, 2023 RSU grant, 580 shares of Mattel, Inc. Common Stock were automatically withheld at vesting to cover required tax withholding.