DISILVESTRO ANTHONY

SEC source: 0001285140-25-000008 · wk-form4_1765493887.xml · derivative · entry 1

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 275,293

Underlying: Common Stock · 275,293 shares

Expires not disclosed

F1 · derivative.exercise_price: Subject to certain vesting conditions and exceptions, these Restricted Stock Units ("RSUs") vest 67% on December 9, 2027 and 33% on December 9, 2028. Each RSU represents a contingent right to receive one share of the Issuer's common stock upon vesting.

F1 · derivative.exercise_date: Subject to certain vesting conditions and exceptions, these Restricted Stock Units ("RSUs") vest 67% on December 9, 2027 and 33% on December 9, 2028. Each RSU represents a contingent right to receive one share of the Issuer's common stock upon vesting.

F1 · derivative.expiration_date: Subject to certain vesting conditions and exceptions, these Restricted Stock Units ("RSUs") vest 67% on December 9, 2027 and 33% on December 9, 2028. Each RSU represents a contingent right to receive one share of the Issuer's common stock upon vesting.

SEC source: 0000037785-25-000111 · form4.xml · nonDerivative · entry 1

DISILVESTRO ANTHONY · CIK 0001285140 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,366

F1 · shares: These shares were issued pursuant to dividend equivalent rights in connection with vested restricted stock units held by the reporting person.

SEC source: 0001127602-25-019443 · form4.xml · nonDerivative · entry 1

DISILVESTRO ANTHONY · CIK 0001285140 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,348

F1 · shares: These shares were issued pursuant to dividend equivalent rights in connection with vested restricted stock units held by the reporting person.

SEC source: 0001127602-25-012899 · form4.xml · nonDerivative · entry 1

DISILVESTRO ANTHONY · CIK 0001285140 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,334

SEC source: 0001523711-25-000043 · wk-form4_1746138390.xml · derivative · entry 3

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 13,112 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: As reported on a Form 4 dated April 29, 2022 and filed on May 3, 2022, the Reporting Person received a grant of 38,564 Restricted Stock Units ("RSUs" or "Units") on April 29, 2022. The RSUs vested 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 received one share of Mattel, Inc. Common Stock, subject to tax withholding. On April 29, 2025, the final 34% of these RSUs vested, resulting in the issuance of 13,112 shares of Mattel, Inc. Common Stock.

F1 · derivative.exercise_date: As reported on a Form 4 dated April 29, 2022 and filed on May 3, 2022, the Reporting Person received a grant of 38,564 Restricted Stock Units ("RSUs" or "Units") on April 29, 2022. The RSUs vested 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 received one share of Mattel, Inc. Common Stock, subject to tax withholding. On April 29, 2025, the final 34% of these RSUs vested, resulting in the issuance of 13,112 shares of Mattel, Inc. Common Stock.

F1 · derivative.expiration_date: As reported on a Form 4 dated April 29, 2022 and filed on May 3, 2022, the Reporting Person received a grant of 38,564 Restricted Stock Units ("RSUs" or "Units") on April 29, 2022. The RSUs vested 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 received one share of Mattel, Inc. Common Stock, subject to tax withholding. On April 29, 2025, the final 34% of these RSUs vested, resulting in the issuance of 13,112 shares of Mattel, Inc. Common Stock.

SEC source: 0001523711-25-000043 · wk-form4_1746138390.xml · nonDerivative · entry 2

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 229,455

F2 · shares: Pursuant to the terms of the April 29, 2022 RSU grant, 5,917 shares of Mattel, Inc. Common Stock were automatically withheld at vesting to cover required tax withholding.

SEC source: 0001523711-25-000043 · wk-form4_1746138390.xml · nonDerivative · entry 1

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 235,372

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: As reported on a Form 4 dated April 29, 2022 and filed on May 3, 2022, the Reporting Person received a grant of 38,564 Restricted Stock Units ("RSUs" or "Units") on April 29, 2022. The RSUs vested 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 received one share of Mattel, Inc. Common Stock, subject to tax withholding. On April 29, 2025, the final 34% of these RSUs vested, resulting in the issuance of 13,112 shares of Mattel, Inc. Common Stock.

SEC source: 0001523711-25-000033 · wk-form4_1746055588.xml · derivative · entry 3

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,480

Underlying: Common Stock · 18,906 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: As reported on a Form 4 dated April 28, 2023 and filed on May 2, 2023, the Reporting Person received a grant of 57,292 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 18,906 shares of Mattel, Inc. Common Stock.

F1 · derivative.exercise_date: As reported on a Form 4 dated April 28, 2023 and filed on May 2, 2023, the Reporting Person received a grant of 57,292 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 18,906 shares of Mattel, Inc. Common Stock.

F1 · derivative.expiration_date: As reported on a Form 4 dated April 28, 2023 and filed on May 2, 2023, the Reporting Person received a grant of 57,292 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 18,906 shares of Mattel, Inc. Common Stock.

SEC source: 0001523711-25-000033 · wk-form4_1746055588.xml · nonDerivative · entry 2

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 222,260

F2 · shares: Pursuant to the terms of the April 28, 2023 RSU grant, 8,559 shares of Mattel, Inc. Common Stock were automatically withheld at vesting to cover required tax withholding.

SEC source: 0001523711-25-000033 · wk-form4_1746055588.xml · nonDerivative · entry 1

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 230,819

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: As reported on a Form 4 dated April 28, 2023 and filed on May 2, 2023, the Reporting Person received a grant of 57,292 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 18,906 shares of Mattel, Inc. Common Stock.

SEC source: 0001523711-25-000022 · wk-form4_1745963442.xml · derivative · entry 3

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 45,344

Underlying: Common Stock · 22,333 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: As reported on a Form 4 dated April 25, 2024 and filed on April 29, 2024, the Reporting Person received a grant of 67,677 Restricted Stock Units ("RSUs" or "Units") on April 25, 2024. 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 25, 2025, the first 33% of these RSUs vested, resulting in the issuance of 22,333 shares of Mattel, Inc. Common Stock.

F1 · derivative.exercise_date: As reported on a Form 4 dated April 25, 2024 and filed on April 29, 2024, the Reporting Person received a grant of 67,677 Restricted Stock Units ("RSUs" or "Units") on April 25, 2024. 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 25, 2025, the first 33% of these RSUs vested, resulting in the issuance of 22,333 shares of Mattel, Inc. Common Stock.

F1 · derivative.expiration_date: As reported on a Form 4 dated April 25, 2024 and filed on April 29, 2024, the Reporting Person received a grant of 67,677 Restricted Stock Units ("RSUs" or "Units") on April 25, 2024. 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 25, 2025, the first 33% of these RSUs vested, resulting in the issuance of 22,333 shares of Mattel, Inc. Common Stock.

SEC source: 0001523711-25-000022 · wk-form4_1745963442.xml · nonDerivative · entry 2

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 211,913

F2 · shares: Pursuant to the terms of the April 25, 2024 RSU grant, 10,094 shares of Mattel, Inc. Common Stock were automatically withheld at vesting to cover required tax withholding.

SEC source: 0001523711-25-000022 · wk-form4_1745963442.xml · nonDerivative · entry 1

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 222,007

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: As reported on a Form 4 dated April 25, 2024 and filed on April 29, 2024, the Reporting Person received a grant of 67,677 Restricted Stock Units ("RSUs" or "Units") on April 25, 2024. 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 25, 2025, the first 33% of these RSUs vested, resulting in the issuance of 22,333 shares of Mattel, Inc. Common Stock.

SEC source: 0001523711-25-000010 · wk-form4_1738794752.xml · nonDerivative · entry 2

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 199,674

F1 · shares: Represents shares of Mattel, Inc. Common Stock that were automatically withheld to cover required tax withholding.

SEC source: 0001523711-25-000010 · wk-form4_1738794752.xml · nonDerivative · entry 1

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 205,963

SEC source: 0001127602-24-029427 · form4.xml · nonDerivative · entry 1

DISILVESTRO ANTHONY · CIK 0001285140 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 979

SEC source: 0001523711-24-000108 · wk-form4_1722977519.xml · derivative · entry 3

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 8,148 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: As reported on a Form 4 dated August 2, 2021 and filed on August 3, 2021, the Reporting Person received a grant of 23,962 Restricted Stock Units ("RSUs" or "Units") on August 2, 2021. The RSUs vested 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 received one share of Mattel, Inc. Common Stock, subject to tax withholding. On August 2, 2024, the final 34% of these RSUs vested, resulting in the issuance of 8,148 shares of Mattel, Inc. Common Stock.

F1 · derivative.exercise_date: As reported on a Form 4 dated August 2, 2021 and filed on August 3, 2021, the Reporting Person received a grant of 23,962 Restricted Stock Units ("RSUs" or "Units") on August 2, 2021. The RSUs vested 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 received one share of Mattel, Inc. Common Stock, subject to tax withholding. On August 2, 2024, the final 34% of these RSUs vested, resulting in the issuance of 8,148 shares of Mattel, Inc. Common Stock.

F1 · derivative.expiration_date: As reported on a Form 4 dated August 2, 2021 and filed on August 3, 2021, the Reporting Person received a grant of 23,962 Restricted Stock Units ("RSUs" or "Units") on August 2, 2021. The RSUs vested 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 received one share of Mattel, Inc. Common Stock, subject to tax withholding. On August 2, 2024, the final 34% of these RSUs vested, resulting in the issuance of 8,148 shares of Mattel, Inc. Common Stock.

SEC source: 0001523711-24-000108 · wk-form4_1722977519.xml · nonDerivative · entry 2

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 185,709

F2 · shares: Pursuant to the terms of the August 2, 2021 RSU grant, 3,675 shares of Mattel, Inc. Common Stock were automatically withheld at vesting to cover required tax withholding.

SEC source: 0001523711-24-000108 · wk-form4_1722977519.xml · nonDerivative · entry 1

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 189,384

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: As reported on a Form 4 dated August 2, 2021 and filed on August 3, 2021, the Reporting Person received a grant of 23,962 Restricted Stock Units ("RSUs" or "Units") on August 2, 2021. The RSUs vested 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 received one share of Mattel, Inc. Common Stock, subject to tax withholding. On August 2, 2024, the final 34% of these RSUs vested, resulting in the issuance of 8,148 shares of Mattel, Inc. Common Stock.

SEC source: 0001523711-24-000045 · wk-form4_1714513805.xml · derivative · entry 6

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,112

Underlying: Common Stock · 12,726 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: As reported on a Form 4 dated April 29, 2022 and filed on May 3, 2022, the Reporting Person received a grant of 38,564 RSUs on April 29, 2022. 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 29, 2024, the second 33% of these RSUs vested, resulting in the issuance of 12,726 shares of Mattel, Inc. Common Stock.

F3 · derivative.exercise_date: As reported on a Form 4 dated April 29, 2022 and filed on May 3, 2022, the Reporting Person received a grant of 38,564 RSUs on April 29, 2022. 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 29, 2024, the second 33% of these RSUs vested, resulting in the issuance of 12,726 shares of Mattel, Inc. Common Stock.

F3 · derivative.expiration_date: As reported on a Form 4 dated April 29, 2022 and filed on May 3, 2022, the Reporting Person received a grant of 38,564 RSUs on April 29, 2022. 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 29, 2024, the second 33% of these RSUs vested, resulting in the issuance of 12,726 shares of Mattel, Inc. Common Stock.

SEC source: 0001523711-24-000045 · wk-form4_1714513805.xml · nonDerivative · entry 4

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 181,236

F4 · shares: Pursuant to the terms of the April 29, 2022 RSU grant, 5,612 shares of Mattel, Inc. Common Stock were automatically withheld at vesting to cover required tax withholding.

SEC source: 0001523711-24-000045 · wk-form4_1714513805.xml · nonDerivative · entry 3

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 186,848

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · price: As reported on a Form 4 dated April 29, 2022 and filed on May 3, 2022, the Reporting Person received a grant of 38,564 RSUs on April 29, 2022. 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 29, 2024, the second 33% of these RSUs vested, resulting in the issuance of 12,726 shares of Mattel, Inc. Common Stock.

SEC source: 0001523711-24-000045 · wk-form4_1714513805.xml · derivative · entry 5

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 38,386

Underlying: Common Stock · 18,906 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: As reported on a Form 4 dated April 28, 2023 and filed on May 2, 2023, the Reporting Person received a grant of 57,292 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, 2024, the first 33% of these RSUs vested, resulting in the issuance of 18,906 shares of Mattel, Inc. Common Stock.

F1 · derivative.exercise_date: As reported on a Form 4 dated April 28, 2023 and filed on May 2, 2023, the Reporting Person received a grant of 57,292 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, 2024, the first 33% of these RSUs vested, resulting in the issuance of 18,906 shares of Mattel, Inc. Common Stock.

F1 · derivative.expiration_date: As reported on a Form 4 dated April 28, 2023 and filed on May 2, 2023, the Reporting Person received a grant of 57,292 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, 2024, the first 33% of these RSUs vested, resulting in the issuance of 18,906 shares of Mattel, Inc. Common Stock.

SEC source: 0001523711-24-000045 · wk-form4_1714513805.xml · nonDerivative · entry 2

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 174,122

F2 · shares: Pursuant to the terms of the April 28, 2023 RSU grant, 8,431 shares of Mattel, Inc. Common Stock were automatically withheld at vesting to cover required tax withholding.

SEC source: 0001523711-24-000045 · wk-form4_1714513805.xml · nonDerivative · entry 1

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 182,553

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: As reported on a Form 4 dated April 28, 2023 and filed on May 2, 2023, the Reporting Person received a grant of 57,292 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, 2024, the first 33% of these RSUs vested, resulting in the issuance of 18,906 shares of Mattel, Inc. Common Stock.

SEC source: 0001523711-24-000035 · wk-form4_1714428589.xml · derivative · entry 1

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 67,677

Underlying: Common Stock · 67,677 shares

Expires not disclosed

F1 · derivative.exercise_price: The Restricted Stock Units ("RSUs" or "Units") were granted on April 25, 2024 pursuant to the Mattel, Inc. Amended and Restated 2010 Equity and Long-Term Compensation Plan, as amended (the "Plan"). Each Unit represents a contingent right to receive one share of Mattel, Inc. Common Stock (or, at the election of Mattel, Inc., a cash amount equal to the fair market value of such share).

F2 · derivative.exercise_date: 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 (or, at the election of Mattel, Inc., a cash amount equal to the fair market value of one share of Common Stock on the date of vesting), subject to tax withholding.

F2 · derivative.expiration_date: 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 (or, at the election of Mattel, Inc., a cash amount equal to the fair market value of one share of Common Stock on the date of vesting), subject to tax withholding.

SEC source: 0001523711-24-000023 · wk-form4_1707348204.xml · nonDerivative · entry 2

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 163,647

F1 · shares: Represents shares of Mattel, Inc. Common Stock that were automatically withheld to cover required tax withholding.

SEC source: 0001523711-24-000023 · wk-form4_1707348204.xml · nonDerivative · entry 1

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 177,513

SEC source: 0001523711-23-000098 · wf-form4_169119019753408.xml · derivative · entry 3

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,148

Underlying: Common Stock · 7,907 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: As reported on a Form 4 dated August 2, 2021 and filed on August 3, 2021, the Reporting Person received a grant of 23,962 Restricted Stock Units ("RSUs" or "Units") on August 2, 2021. The RSUs vested 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 received one share of Mattel, Inc. Common Stock, subject to tax withholding. On August 2, 2023, the second 33% of these RSUs vested, resulting in the issuance of 7,907 shares of Mattel, Inc. Common Stock.

F1 · derivative.exercise_date: As reported on a Form 4 dated August 2, 2021 and filed on August 3, 2021, the Reporting Person received a grant of 23,962 Restricted Stock Units ("RSUs" or "Units") on August 2, 2021. The RSUs vested 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 received one share of Mattel, Inc. Common Stock, subject to tax withholding. On August 2, 2023, the second 33% of these RSUs vested, resulting in the issuance of 7,907 shares of Mattel, Inc. Common Stock.

F1 · derivative.expiration_date: As reported on a Form 4 dated August 2, 2021 and filed on August 3, 2021, the Reporting Person received a grant of 23,962 Restricted Stock Units ("RSUs" or "Units") on August 2, 2021. The RSUs vested 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 received one share of Mattel, Inc. Common Stock, subject to tax withholding. On August 2, 2023, the second 33% of these RSUs vested, resulting in the issuance of 7,907 shares of Mattel, Inc. Common Stock.

SEC source: 0001523711-23-000098 · wf-form4_169119019753408.xml · nonDerivative · entry 2

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 131,223

F2 · shares: Pursuant to the terms of the August 2, 2021 RSU grant, 3,479 shares of Mattel, Inc. Common Stock were automatically withheld at vesting to cover required tax withholding.

SEC source: 0001523711-23-000098 · wf-form4_169119019753408.xml · nonDerivative · entry 1

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 134,702

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: As reported on a Form 4 dated August 2, 2021 and filed on August 3, 2021, the Reporting Person received a grant of 23,962 Restricted Stock Units ("RSUs" or "Units") on August 2, 2021. The RSUs vested 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 received one share of Mattel, Inc. Common Stock, subject to tax withholding. On August 2, 2023, the second 33% of these RSUs vested, resulting in the issuance of 7,907 shares of Mattel, Inc. Common Stock.

SEC source: 0001523711-23-000064 · wf-form4_168859003753546.xml · derivative · entry 3

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 18,460 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: As reported on a Form 4 dated June 30, 2020 and filed on July 2, 2020, the Reporting Person received a grant of 54,292 Restricted Stock Units ("RSUs" or "Units") on June 30, 2020. The RSUs vested 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 received one share of Mattel, Inc. Common Stock, subject to tax withholding. On June 30, 2023, the final 34% of these RSUs vested, resulting in the issuance of 18,460 shares of Mattel, Inc. Common Stock.

F1 · derivative.exercise_date: As reported on a Form 4 dated June 30, 2020 and filed on July 2, 2020, the Reporting Person received a grant of 54,292 Restricted Stock Units ("RSUs" or "Units") on June 30, 2020. The RSUs vested 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 received one share of Mattel, Inc. Common Stock, subject to tax withholding. On June 30, 2023, the final 34% of these RSUs vested, resulting in the issuance of 18,460 shares of Mattel, Inc. Common Stock.

F1 · derivative.expiration_date: As reported on a Form 4 dated June 30, 2020 and filed on July 2, 2020, the Reporting Person received a grant of 54,292 Restricted Stock Units ("RSUs" or "Units") on June 30, 2020. The RSUs vested 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 received one share of Mattel, Inc. Common Stock, subject to tax withholding. On June 30, 2023, the final 34% of these RSUs vested, resulting in the issuance of 18,460 shares of Mattel, Inc. Common Stock.

SEC source: 0001523711-23-000064 · wf-form4_168859003753546.xml · nonDerivative · entry 2

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 126,795

F2 · shares: Pursuant to the terms of the June 30, 2020 RSU grant, 8,053 shares of Mattel, Inc. Common Stock were automatically withheld at vesting to cover required tax withholding.

SEC source: 0001523711-23-000064 · wf-form4_168859003753546.xml · nonDerivative · entry 1

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 134,848

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: As reported on a Form 4 dated June 30, 2020 and filed on July 2, 2020, the Reporting Person received a grant of 54,292 Restricted Stock Units ("RSUs" or "Units") on June 30, 2020. The RSUs vested 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 received one share of Mattel, Inc. Common Stock, subject to tax withholding. On June 30, 2023, the final 34% of these RSUs vested, resulting in the issuance of 18,460 shares of Mattel, Inc. Common Stock.

SEC source: 0001523711-23-000038 · wf-form4_168307467263485.xml · derivative · entry 5

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 38,580

Underlying: Common Stock · 38,580 shares

Expires 2033-04-28

F5 · derivative.exercise_date: The option was granted on April 28, 2023 pursuant to the Plan. The option vests and becomes exercisable with regard to (a) 33% of the shares granted on the first anniversary of the date of grant, (b) an additional 33% of the shares granted on the second anniversary of the date of grant, and (c) the remaining 34% of the shares granted on the third anniversary of the date of grant.

SEC source: 0001523711-23-000038 · wf-form4_168307467263485.xml · derivative · entry 4

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 57,292

Underlying: Common Stock · 57,292 shares

Expires not disclosed

F3 · derivative.exercise_price: The RSUs were granted on April 28, 2023 pursuant to the Mattel, Inc. Amended and Restated 2010 Equity and Long-Term Compensation Plan, as amended (the "Plan"). Each Unit represents a contingent right to receive one share of Mattel, Inc. Common Stock (or, at the election of Mattel, Inc., a cash amount equal to the fair market value of such share).

F4 · derivative.exercise_date: 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 (or, at the election of Mattel, Inc., a cash amount equal to the fair market value of one share of Common Stock on the date of vesting), subject to tax withholding.

F4 · derivative.expiration_date: 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 (or, at the election of Mattel, Inc., a cash amount equal to the fair market value of one share of Common Stock on the date of vesting), subject to tax withholding.

SEC source: 0001523711-23-000038 · wf-form4_168307467263485.xml · derivative · entry 3

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,838

Underlying: Common Stock · 12,726 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: As reported on a Form 4 dated April 29, 2022 and filed on May 3, 2022, the Reporting Person received a grant of 38,564 Restricted Stock Units ("RSUs" or "Units") on April 29, 2022. 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, 2023, the first 33% of these RSUs vested, resulting in the issuance of 12,726 shares of Mattel, Inc. Common Stock.

F1 · derivative.exercise_date: As reported on a Form 4 dated April 29, 2022 and filed on May 3, 2022, the Reporting Person received a grant of 38,564 Restricted Stock Units ("RSUs" or "Units") on April 29, 2022. 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, 2023, the first 33% of these RSUs vested, resulting in the issuance of 12,726 shares of Mattel, Inc. Common Stock.

F1 · derivative.expiration_date: As reported on a Form 4 dated April 29, 2022 and filed on May 3, 2022, the Reporting Person received a grant of 38,564 Restricted Stock Units ("RSUs" or "Units") on April 29, 2022. 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, 2023, the first 33% of these RSUs vested, resulting in the issuance of 12,726 shares of Mattel, Inc. Common Stock.

SEC source: 0001523711-23-000038 · wf-form4_168307467263485.xml · nonDerivative · entry 2

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 116,388

F2 · shares: Pursuant to the terms of the April 29, 2022 RSU grant, 5,539 shares of Mattel, Inc. Common Stock were automatically withheld at vesting to cover required tax withholding.

SEC source: 0001523711-23-000038 · wf-form4_168307467263485.xml · nonDerivative · entry 1

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 121,927

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: As reported on a Form 4 dated April 29, 2022 and filed on May 3, 2022, the Reporting Person received a grant of 38,564 Restricted Stock Units ("RSUs" or "Units") on April 29, 2022. 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, 2023, the first 33% of these RSUs vested, resulting in the issuance of 12,726 shares of Mattel, Inc. Common Stock.

SEC source: 0001523711-23-000016 · wf-form4_167599103463309.xml · nonDerivative · entry 2

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 109,201

F1 · shares: Represents shares of Mattel, Inc. Common Stock that were automatically withheld to cover required tax withholding.

SEC source: 0001523711-23-000016 · wf-form4_167599103463309.xml · nonDerivative · entry 1

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 161,962

SEC source: 0001127602-22-020448 · form4.xml · derivative · entry 3

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,055

Underlying: Common Stock · 7,907 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: As reported on a Form 4 dated August 2, 2021 and filed on August 3, 2021, the Reporting Person received a grant of 23,962 Restricted Stock Units ("RSUs" or "Units") on August 2, 2021. The RSUs vested 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 received one share of Mattel, Inc. Common Stock, subject to tax withholding. On August 2, 2022, the first 33% of these RSUs vested, resulting in the issuance of 7,907 shares of Mattel, Inc. Common Stock.

F1 · derivative.exercise_date: As reported on a Form 4 dated August 2, 2021 and filed on August 3, 2021, the Reporting Person received a grant of 23,962 Restricted Stock Units ("RSUs" or "Units") on August 2, 2021. The RSUs vested 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 received one share of Mattel, Inc. Common Stock, subject to tax withholding. On August 2, 2022, the first 33% of these RSUs vested, resulting in the issuance of 7,907 shares of Mattel, Inc. Common Stock.

F1 · derivative.expiration_date: As reported on a Form 4 dated August 2, 2021 and filed on August 3, 2021, the Reporting Person received a grant of 23,962 Restricted Stock Units ("RSUs" or "Units") on August 2, 2021. The RSUs vested 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 received one share of Mattel, Inc. Common Stock, subject to tax withholding. On August 2, 2022, the first 33% of these RSUs vested, resulting in the issuance of 7,907 shares of Mattel, Inc. Common Stock.

SEC source: 0001127602-22-020448 · form4.xml · nonDerivative · entry 2

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,662

F2 · shares: Pursuant to the terms of the August 2, 2021 RSU grant, 3,519 shares of Mattel, Inc. Common Stock were automatically withheld at vesting to cover required tax withholding.

SEC source: 0001127602-22-020448 · form4.xml · nonDerivative · entry 1

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,181

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: As reported on a Form 4 dated August 2, 2021 and filed on August 3, 2021, the Reporting Person received a grant of 23,962 Restricted Stock Units ("RSUs" or "Units") on August 2, 2021. The RSUs vested 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 received one share of Mattel, Inc. Common Stock, subject to tax withholding. On August 2, 2022, the first 33% of these RSUs vested, resulting in the issuance of 7,907 shares of Mattel, Inc. Common Stock.

SEC source: 0001523711-22-000067 · wf-form4_165706047136368.xml · derivative · entry 3

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,460

Underlying: Common Stock · 17,916 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: As reported on a Form 4 dated June 30, 2020 and filed on July 2, 2020, the Reporting Person received a grant of 54,292 Restricted Stock Units ("RSUs" or "Units") on June 30, 2020. The RSUs vested 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 received one share of Mattel, Inc. Common Stock, subject to tax withholding. On June 30, 2022, the second 33% of these RSUs vested, resulting in the issuance of 17,916 shares of Mattel, Inc. Common Stock.

F1 · derivative.exercise_date: As reported on a Form 4 dated June 30, 2020 and filed on July 2, 2020, the Reporting Person received a grant of 54,292 Restricted Stock Units ("RSUs" or "Units") on June 30, 2020. The RSUs vested 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 received one share of Mattel, Inc. Common Stock, subject to tax withholding. On June 30, 2022, the second 33% of these RSUs vested, resulting in the issuance of 17,916 shares of Mattel, Inc. Common Stock.

F1 · derivative.expiration_date: As reported on a Form 4 dated June 30, 2020 and filed on July 2, 2020, the Reporting Person received a grant of 54,292 Restricted Stock Units ("RSUs" or "Units") on June 30, 2020. The RSUs vested 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 received one share of Mattel, Inc. Common Stock, subject to tax withholding. On June 30, 2022, the second 33% of these RSUs vested, resulting in the issuance of 17,916 shares of Mattel, Inc. Common Stock.

SEC source: 0001523711-22-000067 · wf-form4_165706047136368.xml · nonDerivative · entry 2

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,274

F2 · shares: Pursuant to the terms of the June 30, 2020 RSU grant, 7,947 shares of Mattel, Inc. Common Stock were automatically withheld at vesting to cover required tax withholding.

SEC source: 0001523711-22-000067 · wf-form4_165706047136368.xml · nonDerivative · entry 1

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,221

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: As reported on a Form 4 dated June 30, 2020 and filed on July 2, 2020, the Reporting Person received a grant of 54,292 Restricted Stock Units ("RSUs" or "Units") on June 30, 2020. The RSUs vested 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 received one share of Mattel, Inc. Common Stock, subject to tax withholding. On June 30, 2022, the second 33% of these RSUs vested, resulting in the issuance of 17,916 shares of Mattel, Inc. Common Stock.

SEC source: 0001523711-22-000035 · wf-form4_165162256332245.xml · derivative · entry 2

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,080

Underlying: Common Stock · 27,080 shares

Expires 2032-04-29

F3 · derivative.exercise_date: The option was granted on April 29, 2022 pursuant to the Plan. The option vests and becomes exercisable with regard to (a) 33% of the shares granted on the first anniversary of the date of grant, (b) an additional 33% of the shares granted on the second anniversary of the date of grant, and (c) the remaining 34% of the shares granted on the third anniversary of the date of grant.

SEC source: 0001523711-22-000035 · wf-form4_165162256332245.xml · derivative · entry 1

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 38,564

Underlying: Common Stock · 38,564 shares

Expires not disclosed

F1 · derivative.exercise_price: The Restricted Stock Units ("RSUs" or "Units") were granted on April 29, 2022 pursuant to the Mattel, Inc. Amended and Restated 2010 Equity and Long-Term Compensation Plan, as amended (the "Plan"). Each Unit represents a contingent right to receive one share of Mattel, Inc. Common Stock (or, at the election of Mattel, Inc., a cash amount equal to the fair market value of such share).

F2 · derivative.exercise_date: 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 (or, at the election of Mattel, Inc., a cash amount equal to the fair market value of one share of Common Stock on the date of vesting), subject to tax withholding.

F2 · derivative.expiration_date: 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 (or, at the election of Mattel, Inc., a cash amount equal to the fair market value of one share of Common Stock on the date of vesting), subject to tax withholding.

SEC source: 0001523711-21-000048 · wf-form4_162803952364344.xml · derivative · entry 2

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 189,100

Underlying: Common Stock · 55,851 shares

Expires 2031-08-02

F3 · derivative.exercise_date: The option was granted on August 2, 2021 pursuant to the Plan. The option vests and becomes exercisable with regard to (a) 33% of the shares granted on the first anniversary of the date of grant, (b) an additional 33% of the shares granted on the second anniversary of the date of grant, and (c) the remaining 34% of the shares granted on the third anniversary of the date of grant.