MAT

SEC source: 0001523711-21-000054 · wf-form4_162804002201544.xml · derivative · entry 10

Dickson Richard · CIK 0001482551 · Pres & Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 67,845

Underlying: Common Stock · 33,415 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.

F5 · derivative.exercise_price: As reported on a Form 4 dated July 31, 2020 and filed on August 4, 2020, the Reporting Person received a grant of 101,260 RSUs on July 31, 2020. 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 July 31, 2021, the first 33% of these RSUs vested, resulting in the issuance of 33,415 shares of Mattel, Inc. Common Stock.

F5 · derivative.exercise_date: As reported on a Form 4 dated July 31, 2020 and filed on August 4, 2020, the Reporting Person received a grant of 101,260 RSUs on July 31, 2020. 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 July 31, 2021, the first 33% of these RSUs vested, resulting in the issuance of 33,415 shares of Mattel, Inc. Common Stock.

F5 · derivative.expiration_date: As reported on a Form 4 dated July 31, 2020 and filed on August 4, 2020, the Reporting Person received a grant of 101,260 RSUs on July 31, 2020. 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 July 31, 2021, the first 33% of these RSUs vested, resulting in the issuance of 33,415 shares of Mattel, Inc. Common Stock.

SEC source: 0001523711-21-000054 · wf-form4_162804002201544.xml · nonDerivative · entry 6

Dickson Richard · CIK 0001482551 · Pres & Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 321,479

F6 · shares: Pursuant to the terms of the July 31, 2020 RSU grant, 16,568 shares of Mattel, Inc. Common Stock were automatically withheld at vesting to cover required tax withholding.

SEC source: 0001523711-21-000054 · wf-form4_162804002201544.xml · nonDerivative · entry 5

Dickson Richard · CIK 0001482551 · Pres & Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 338,047

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.

F5 · price: As reported on a Form 4 dated July 31, 2020 and filed on August 4, 2020, the Reporting Person received a grant of 101,260 RSUs on July 31, 2020. 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 July 31, 2021, the first 33% of these RSUs vested, resulting in the issuance of 33,415 shares of Mattel, Inc. Common Stock.

SEC source: 0001523711-21-000046 · wf-form4_162517911100191.xml · derivative · entry 3

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 36,376

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 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 June 30, 2021, the first 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 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 June 30, 2021, the first 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 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 June 30, 2021, the first 33% of these RSUs vested, resulting in the issuance of 17,916 shares of Mattel, Inc. Common Stock.

SEC source: 0001523711-21-000046 · wf-form4_162517911100191.xml · nonDerivative · entry 2

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,221

F2 · shares: Pursuant to the terms of the June 30, 2020 RSU grant, 7,611 shares of Mattel, Inc. Common Stock were automatically withheld at vesting to cover required tax withholding.

SEC source: 0001523711-21-000046 · wf-form4_162517911100191.xml · nonDerivative · entry 1

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,832

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 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 June 30, 2021, the first 33% of these RSUs vested, resulting in the issuance of 17,916 shares of Mattel, Inc. Common Stock.

SEC source: 0001523711-21-000070 · wf-form4a_163552562556913.xml · nonDerivative · entry 2

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,305

F1 · balance_after: On July 1, 2021, the reporting person filed a Form 4 which inadvertently reported that, following the vesting of the first 33% of an RSU grant, he directly owned 35,832 shares of Mattel, Inc. Common Stock ("Common Stock") and, after tax withholding, 28,221 shares of Common Stock. In fact, as reported in this amendment, the reporting person directly owned 17,916 shares of Common Stock and, after tax withholding, 10,305 shares of Common Stock.

SEC source: 0001523711-21-000070 · wf-form4a_163552562556913.xml · nonDerivative · entry 1

DISILVESTRO ANTHONY · CIK 0001285140 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,916

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 · balance_after: On July 1, 2021, the reporting person filed a Form 4 which inadvertently reported that, following the vesting of the first 33% of an RSU grant, he directly owned 35,832 shares of Mattel, Inc. Common Stock ("Common Stock") and, after tax withholding, 28,221 shares of Common Stock. In fact, as reported in this amendment, the reporting person directly owned 17,916 shares of Common Stock and, after tax withholding, 10,305 shares of Common Stock.

SEC source: 0001523711-21-000044 · wf-form4_162224179108226.xml · derivative · entry 1

FERGUSON DIANA SUE · CIK 0001275975 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,539

Underlying: Common Stock · 7,539 shares

Expires not disclosed

F1 · derivative.exercise_price: The Restricted Stock Units ("RSUs") were granted on May 26, 2021, pursuant to the Mattel, Inc. Amended and Restated 2010 Equity and Long-Term Compensation Plan, as amended. Each RSU represents a contingent right to receive one share of Common Stock (or, at the election of Mattel, Inc., a cash amount equal to the fair market value of such share on the settlement date). The RSUs are accompanied by dividend equivalent rights.

F2 · derivative.exercise_date: The RSUs are fully vested on the date of grant. Vested RSUs generally will be settled on the third anniversary of the date of grant. On the settlement date, for each vested RSU, the Reporting Person will receive one share of 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 settlement date).

F2 · derivative.expiration_date: The RSUs are fully vested on the date of grant. Vested RSUs generally will be settled on the third anniversary of the date of grant. On the settlement date, for each vested RSU, the Reporting Person will receive one share of 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 settlement date).

SEC source: 0001523711-21-000042 · wf-form4_162224164256650.xml · derivative · entry 1

Laursen Soren T · CIK 0001740353 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,539

Underlying: Common Stock · 7,539 shares

Expires not disclosed

F1 · derivative.exercise_price: The Restricted Stock Units ("RSUs") were granted on May 26, 2021, pursuant to the Mattel, Inc. Amended and Restated 2010 Equity and Long-Term Compensation Plan, as amended. Each RSU represents a contingent right to receive one share of Common Stock (or, at the election of Mattel, Inc., a cash amount equal to the fair market value of such share on the settlement date). The RSUs are accompanied by dividend equivalent rights.

F2 · derivative.exercise_date: The RSUs are fully vested on the date of grant. Vested RSUs generally will be settled on the third anniversary of the date of grant. On the settlement date, for each vested RSU, the Reporting Person will receive one share of 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 settlement date).

F2 · derivative.expiration_date: The RSUs are fully vested on the date of grant. Vested RSUs generally will be settled on the third anniversary of the date of grant. On the settlement date, for each vested RSU, the Reporting Person will receive one share of 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 settlement date).

SEC source: 0001523711-21-000040 · wf-form4_162224137558121.xml · derivative · entry 2

Lynch Roger · CIK 0001476295 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,797

Underlying: Common Stock · 2,797 shares

Expires not disclosed

F3 · derivative.exercise_price: Distributions from the Reporting Person's phantom stock account will be in the form of shares of Common Stock equal in value to the value of the phantom stock account.

F4 · derivative.exercise_date: The phantom stock units will be settled in shares of Common Stock following the Reporting Person's separation from service with Mattel, Inc.

F4 · derivative.expiration_date: The phantom stock units will be settled in shares of Common Stock following the Reporting Person's separation from service with Mattel, Inc.

SEC source: 0001523711-21-000040 · wf-form4_162224137558121.xml · derivative · entry 1

Lynch Roger · CIK 0001476295 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,539

Underlying: Common Stock · 7,539 shares

Expires not disclosed

F1 · derivative.exercise_price: The Restricted Stock Units ("RSUs") were granted on May 26, 2021, pursuant to the Mattel, Inc. Amended and Restated 2010 Equity and Long-Term Compensation Plan, as amended. Each RSU represents a contingent right to receive one share of Common Stock (or, at the election of Mattel, Inc., a cash amount equal to the fair market value of such share on the settlement date). The RSUs are accompanied by dividend equivalent rights.

F2 · derivative.exercise_date: The RSUs are fully vested on the date of grant. Vested RSUs generally will be settled on the third anniversary of the date of grant. On the settlement date, for each vested RSU, the Reporting Person will receive one share of 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 settlement date).

F2 · derivative.expiration_date: The RSUs are fully vested on the date of grant. Vested RSUs generally will be settled on the third anniversary of the date of grant. On the settlement date, for each vested RSU, the Reporting Person will receive one share of 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 settlement date).

SEC source: 0001523711-21-000038 · wf-form4_162224126573261.xml · derivative · entry 2

NG DOMINIC · CIK 0001201236 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 66,917

Underlying: Common Stock · 6,323 shares

Expires not disclosed

F3 · derivative.exercise_price: Distributions from the Reporting Person's phantom stock account will be in the form of shares of Common Stock equal in value to the value of the phantom stock account.

F4 · derivative.exercise_date: The phantom stock units will be settled in shares of Common Stock following the Reporting Person's separation from service with Mattel, Inc.

F4 · derivative.expiration_date: The phantom stock units will be settled in shares of Common Stock following the Reporting Person's separation from service with Mattel, Inc.

SEC source: 0001523711-21-000038 · wf-form4_162224126573261.xml · derivative · entry 1

NG DOMINIC · CIK 0001201236 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,539

Underlying: Common Stock · 7,539 shares

Expires not disclosed

F1 · derivative.exercise_price: The Restricted Stock Units ("RSUs") were granted on May 26, 2021, pursuant to the Mattel, Inc. Amended and Restated 2010 Equity and Long-Term Compensation Plan, as amended. Each RSU represents a contingent right to receive one share of Common Stock (or, at the election of Mattel, Inc., a cash amount equal to the fair market value of such share on the settlement date). The RSUs are accompanied by dividend equivalent rights.

F2 · derivative.exercise_date: The RSUs are fully vested on the date of grant. Vested RSUs generally will be settled on the third anniversary of the date of grant. On the settlement date, for each vested RSU, the Reporting Person will receive one share of 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 settlement date).

F2 · derivative.expiration_date: The RSUs are fully vested on the date of grant. Vested RSUs generally will be settled on the third anniversary of the date of grant. On the settlement date, for each vested RSU, the Reporting Person will receive one share of 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 settlement date).

SEC source: 0001523711-21-000036 · wf-form4_162224107070600.xml · derivative · entry 1

Olian Judy D. · CIK 0001605729 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,539

Underlying: Common Stock · 7,539 shares

Expires not disclosed

F1 · derivative.exercise_price: The Restricted Stock Units ("RSUs") were granted on May 26, 2021, pursuant to the Mattel, Inc. Amended and Restated 2010 Equity and Long-Term Compensation Plan, as amended. Each RSU represents a contingent right to receive one share of Common Stock (or, at the election of Mattel, Inc., a cash amount equal to the fair market value of such share on the settlement date). The RSUs are accompanied by dividend equivalent rights.

F2 · derivative.exercise_date: The RSUs are fully vested on the date of grant. Vested RSUs generally will be settled on the third anniversary of the date of grant. On the settlement date, for each vested RSU, the Reporting Person will receive one share of 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 settlement date).

F2 · derivative.expiration_date: The RSUs are fully vested on the date of grant. Vested RSUs generally will be settled on the third anniversary of the date of grant. On the settlement date, for each vested RSU, the Reporting Person will receive one share of 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 settlement date).

SEC source: 0001523711-21-000034 · wf-form4_162224085346755.xml · derivative · entry 1

Lewnes Ann · CIK 0001597445 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,539

Underlying: Common Stock · 7,539 shares

Expires not disclosed

F1 · derivative.exercise_price: The Restricted Stock Units ("RSUs") were granted on May 26, 2021, pursuant to the Mattel, Inc. Amended and Restated 2010 Equity and Long-Term Compensation Plan, as amended. Each RSU represents a contingent right to receive one share of Common Stock (or, at the election of Mattel, Inc., a cash amount equal to the fair market value of such share on the settlement date). The RSUs are accompanied by dividend equivalent rights.

F2 · derivative.exercise_date: The RSUs are fully vested on the date of grant. Vested RSUs generally will be settled on the third anniversary of the date of grant. On the settlement date, for each vested RSU, the Reporting Person will receive one share of 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 settlement date).

F2 · derivative.expiration_date: The RSUs are fully vested on the date of grant. Vested RSUs generally will be settled on the third anniversary of the date of grant. On the settlement date, for each vested RSU, the Reporting Person will receive one share of 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 settlement date).

SEC source: 0001523711-21-000032 · wf-form4_162224064925989.xml · derivative · entry 1

DOLAN MICHAEL J · CIK 0001062126 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,539

Underlying: Common Stock · 7,539 shares

Expires not disclosed

F1 · derivative.exercise_price: The Restricted Stock Units ("RSUs") were granted on May 26, 2021, pursuant to the Mattel, Inc. Amended and Restated 2010 Equity and Long-Term Compensation Plan, as amended. Each RSU represents a contingent right to receive one share of Common Stock (or, at the election of Mattel, Inc., a cash amount equal to the fair market value of such share on the settlement date). The RSUs are accompanied by dividend equivalent rights.

F2 · derivative.exercise_date: The RSUs are fully vested on the date of grant. Vested RSUs generally will be settled on the third anniversary of the date of grant. On the settlement date, for each vested RSU, the Reporting Person will receive one share of 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 settlement date).

F2 · derivative.expiration_date: The RSUs are fully vested on the date of grant. Vested RSUs generally will be settled on the third anniversary of the date of grant. On the settlement date, for each vested RSU, the Reporting Person will receive one share of 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 settlement date).

SEC source: 0001523711-21-000030 · wf-form4_162224047123159.xml · derivative · entry 1

BRADLEY RICHARD TODD · CIK 0001203500 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,539

Underlying: Common Stock · 7,539 shares

Expires not disclosed

F1 · derivative.exercise_price: The Restricted Stock Units ("RSUs") were granted on May 26, 2021, pursuant to the Mattel, Inc. Amended and Restated 2010 Equity and Long-Term Compensation Plan, as amended. Each RSU represents a contingent right to receive one share of Common Stock (or, at the election of Mattel, Inc., a cash amount equal to the fair market value of such share on the settlement date). The RSUs are accompanied by dividend equivalent rights.

F2 · derivative.exercise_date: The RSUs are fully vested on the date of grant. Vested RSUs generally will be settled on the third anniversary of the date of grant. On the settlement date, for each vested RSU, the Reporting Person will receive one share of 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 settlement date).

F2 · derivative.expiration_date: The RSUs are fully vested on the date of grant. Vested RSUs generally will be settled on the third anniversary of the date of grant. On the settlement date, for each vested RSU, the Reporting Person will receive one share of 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 settlement date).

SEC source: 0001523711-21-000028 · wf-form4_162224026501141.xml · derivative · entry 1

Cisneros Adriana · CIK 0001749229 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,539

Underlying: Common Stock · 7,539 shares

Expires not disclosed

F1 · derivative.exercise_price: The Restricted Stock Units ("RSUs") were granted on May 26, 2021, pursuant to the Mattel, Inc. Amended and Restated 2010 Equity and Long-Term Compensation Plan, as amended. Each RSU represents a contingent right to receive one share of Common Stock (or, at the election of Mattel, Inc., a cash amount equal to the fair market value of such share on the settlement date). The RSUs are accompanied by dividend equivalent rights.

F2 · derivative.exercise_date: The RSUs are fully vested on the date of grant. Vested RSUs generally will be settled on the third anniversary of the date of grant. On the settlement date, for each vested RSU, the Reporting Person will receive one share of 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 settlement date).

F2 · derivative.expiration_date: The RSUs are fully vested on the date of grant. Vested RSUs generally will be settled on the third anniversary of the date of grant. On the settlement date, for each vested RSU, the Reporting Person will receive one share of 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 settlement date).

SEC source: 0001523711-21-000026 · wf-form4_162146297574913.xml · derivative · entry 2

Laursen Soren T · CIK 0001740353 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 9,162 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 May 17, 2018 and filed on May 21, 2018, the Reporting Person received a grant of 9,162 Restricted Stock Units ("RSUs") on May 17, 2018. The RSUs were fully vested on the grant date and are settled on the third anniversary of the grant date. On May 17, 2021, 100% of these RSUs were settled, resulting in the issuance of 9,162 shares of Mattel Common Stock.

F1 · derivative.exercise_date: As reported on a Form 4 dated May 17, 2018 and filed on May 21, 2018, the Reporting Person received a grant of 9,162 Restricted Stock Units ("RSUs") on May 17, 2018. The RSUs were fully vested on the grant date and are settled on the third anniversary of the grant date. On May 17, 2021, 100% of these RSUs were settled, resulting in the issuance of 9,162 shares of Mattel Common Stock.

F1 · derivative.expiration_date: As reported on a Form 4 dated May 17, 2018 and filed on May 21, 2018, the Reporting Person received a grant of 9,162 Restricted Stock Units ("RSUs") on May 17, 2018. The RSUs were fully vested on the grant date and are settled on the third anniversary of the grant date. On May 17, 2021, 100% of these RSUs were settled, resulting in the issuance of 9,162 shares of Mattel Common Stock.

SEC source: 0001523711-21-000026 · wf-form4_162146297574913.xml · nonDerivative · entry 1

Laursen Soren T · CIK 0001740353 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,535

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 May 17, 2018 and filed on May 21, 2018, the Reporting Person received a grant of 9,162 Restricted Stock Units ("RSUs") on May 17, 2018. The RSUs were fully vested on the grant date and are settled on the third anniversary of the grant date. On May 17, 2021, 100% of these RSUs were settled, resulting in the issuance of 9,162 shares of Mattel Common Stock.

SEC source: 0001523711-21-000024 · wf-form4_162146274491336.xml · derivative · entry 2

BRADLEY RICHARD TODD · CIK 0001203500 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 9,162 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 May 17, 2018 and filed on May 21, 2018, the Reporting Person received a grant of 9,162 Restricted Stock Units ("RSUs") on May 17, 2018. The RSUs were fully vested on the grant date and are settled on the third anniversary of the grant date. On May 17, 2021, 100% of these RSUs were settled, resulting in the issuance of 9,162 shares of Mattel Common Stock.

F1 · derivative.exercise_date: As reported on a Form 4 dated May 17, 2018 and filed on May 21, 2018, the Reporting Person received a grant of 9,162 Restricted Stock Units ("RSUs") on May 17, 2018. The RSUs were fully vested on the grant date and are settled on the third anniversary of the grant date. On May 17, 2021, 100% of these RSUs were settled, resulting in the issuance of 9,162 shares of Mattel Common Stock.

F1 · derivative.expiration_date: As reported on a Form 4 dated May 17, 2018 and filed on May 21, 2018, the Reporting Person received a grant of 9,162 Restricted Stock Units ("RSUs") on May 17, 2018. The RSUs were fully vested on the grant date and are settled on the third anniversary of the grant date. On May 17, 2021, 100% of these RSUs were settled, resulting in the issuance of 9,162 shares of Mattel Common Stock.

SEC source: 0001523711-21-000024 · wf-form4_162146274491336.xml · nonDerivative · entry 1

BRADLEY RICHARD TODD · CIK 0001203500 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,162

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 May 17, 2018 and filed on May 21, 2018, the Reporting Person received a grant of 9,162 Restricted Stock Units ("RSUs") on May 17, 2018. The RSUs were fully vested on the grant date and are settled on the third anniversary of the grant date. On May 17, 2021, 100% of these RSUs were settled, resulting in the issuance of 9,162 shares of Mattel Common Stock.

SEC source: 0001523711-21-000022 · wf-form4_162146242603564.xml · derivative · entry 2

DOLAN MICHAEL J · CIK 0001062126 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 9,162 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 May 17, 2018 and filed on May 21, 2018, the Reporting Person received a grant of 9,162 Restricted Stock Units ("RSUs") on May 17, 2018. The RSUs were fully vested on the grant date and are settled on the third anniversary of the grant date. On May 17, 2021, 100% of these RSUs were settled, resulting in the issuance of 9,162 shares of Mattel Common Stock.

F1 · derivative.exercise_date: As reported on a Form 4 dated May 17, 2018 and filed on May 21, 2018, the Reporting Person received a grant of 9,162 Restricted Stock Units ("RSUs") on May 17, 2018. The RSUs were fully vested on the grant date and are settled on the third anniversary of the grant date. On May 17, 2021, 100% of these RSUs were settled, resulting in the issuance of 9,162 shares of Mattel Common Stock.

F1 · derivative.expiration_date: As reported on a Form 4 dated May 17, 2018 and filed on May 21, 2018, the Reporting Person received a grant of 9,162 Restricted Stock Units ("RSUs") on May 17, 2018. The RSUs were fully vested on the grant date and are settled on the third anniversary of the grant date. On May 17, 2021, 100% of these RSUs were settled, resulting in the issuance of 9,162 shares of Mattel Common Stock.

SEC source: 0001523711-21-000022 · wf-form4_162146242603564.xml · nonDerivative · entry 1

DOLAN MICHAEL J · CIK 0001062126 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 151,022

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 May 17, 2018 and filed on May 21, 2018, the Reporting Person received a grant of 9,162 Restricted Stock Units ("RSUs") on May 17, 2018. The RSUs were fully vested on the grant date and are settled on the third anniversary of the grant date. On May 17, 2021, 100% of these RSUs were settled, resulting in the issuance of 9,162 shares of Mattel Common Stock.

SEC source: 0001523711-21-000020 · wf-form4_162146194400914.xml · derivative · entry 2

Lewnes Ann · CIK 0001597445 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 9,162 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 May 17, 2018 and filed on May 21, 2018, the Reporting Person received a grant of 9,162 Restricted Stock Units ("RSUs") on May 17, 2018. The RSUs were fully vested on the grant date and are settled on the third anniversary of the grant date. On May 17, 2021, 100% of these RSUs were settled, resulting in the issuance of 9,162 shares of Mattel Common Stock.

F1 · derivative.exercise_date: As reported on a Form 4 dated May 17, 2018 and filed on May 21, 2018, the Reporting Person received a grant of 9,162 Restricted Stock Units ("RSUs") on May 17, 2018. The RSUs were fully vested on the grant date and are settled on the third anniversary of the grant date. On May 17, 2021, 100% of these RSUs were settled, resulting in the issuance of 9,162 shares of Mattel Common Stock.

F1 · derivative.expiration_date: As reported on a Form 4 dated May 17, 2018 and filed on May 21, 2018, the Reporting Person received a grant of 9,162 Restricted Stock Units ("RSUs") on May 17, 2018. The RSUs were fully vested on the grant date and are settled on the third anniversary of the grant date. On May 17, 2021, 100% of these RSUs were settled, resulting in the issuance of 9,162 shares of Mattel Common Stock.

SEC source: 0001523711-21-000020 · wf-form4_162146194400914.xml · nonDerivative · entry 1

Lewnes Ann · CIK 0001597445 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,690

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 May 17, 2018 and filed on May 21, 2018, the Reporting Person received a grant of 9,162 Restricted Stock Units ("RSUs") on May 17, 2018. The RSUs were fully vested on the grant date and are settled on the third anniversary of the grant date. On May 17, 2021, 100% of these RSUs were settled, resulting in the issuance of 9,162 shares of Mattel Common Stock.

SEC source: 0001523711-21-000018 · wf-form4_162016415563264.xml · derivative · entry 3

Hugh Yoon J. · CIK 0001474865 · SVP & Corporate Controller

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,093

Underlying: Common Stock · 2,030 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 30, 2019 and filed on May 2, 2019, the Reporting Person received a grant of 6,153 Restricted Stock Units ("RSUs" or "Units") on April 30, 2019. 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 30, 2021, the second 33% of these RSUs vested, resulting in the issuance of 2,030 shares of Mattel, Inc. Common Stock.

F1 · derivative.exercise_date: As reported on a Form 4 dated April 30, 2019 and filed on May 2, 2019, the Reporting Person received a grant of 6,153 Restricted Stock Units ("RSUs" or "Units") on April 30, 2019. 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 30, 2021, the second 33% of these RSUs vested, resulting in the issuance of 2,030 shares of Mattel, Inc. Common Stock.

F1 · derivative.expiration_date: As reported on a Form 4 dated April 30, 2019 and filed on May 2, 2019, the Reporting Person received a grant of 6,153 Restricted Stock Units ("RSUs" or "Units") on April 30, 2019. 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 30, 2021, the second 33% of these RSUs vested, resulting in the issuance of 2,030 shares of Mattel, Inc. Common Stock.

SEC source: 0001523711-21-000018 · wf-form4_162016415563264.xml · nonDerivative · entry 2

Hugh Yoon J. · CIK 0001474865 · SVP & Corporate Controller

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,038

F2 · shares: Pursuant to the terms of the April 30, 2019 RSU grant, 702 shares of Mattel, Inc. Common Stock were automatically withheld at vesting to cover required tax withholding.

SEC source: 0001523711-21-000018 · wf-form4_162016415563264.xml · nonDerivative · entry 1

Hugh Yoon J. · CIK 0001474865 · SVP & Corporate Controller

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,740

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 30, 2019 and filed on May 2, 2019, the Reporting Person received a grant of 6,153 Restricted Stock Units ("RSUs" or "Units") on April 30, 2019. 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 30, 2021, the second 33% of these RSUs vested, resulting in the issuance of 2,030 shares of Mattel, Inc. Common Stock.

SEC source: 0001523711-21-000016 · wf-form4_161472450647794.xml · derivative · entry 3

Isaias Zanatta Roberto Jacobo · CIK 0001767603 · EVP & Chief Supply Chain Offr

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,948

Underlying: Common Stock · 2,861 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 February 28, 2019 and filed on March 4, 2019, the Reporting Person received a grant of 8,669 Restricted Stock Units ("RSUs" or "Units") on February 28, 2019. 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 February 28, 2021, the second 33% of these RSUs vested, resulting in the issuance of 2,861 shares of Mattel, Inc. Common Stock.

F1 · derivative.exercise_date: As reported on a Form 4 dated February 28, 2019 and filed on March 4, 2019, the Reporting Person received a grant of 8,669 Restricted Stock Units ("RSUs" or "Units") on February 28, 2019. 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 February 28, 2021, the second 33% of these RSUs vested, resulting in the issuance of 2,861 shares of Mattel, Inc. Common Stock.

F1 · derivative.expiration_date: As reported on a Form 4 dated February 28, 2019 and filed on March 4, 2019, the Reporting Person received a grant of 8,669 Restricted Stock Units ("RSUs" or "Units") on February 28, 2019. 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 February 28, 2021, the second 33% of these RSUs vested, resulting in the issuance of 2,861 shares of Mattel, Inc. Common Stock.

SEC source: 0001523711-21-000016 · wf-form4_161472450647794.xml · nonDerivative · entry 2

Isaias Zanatta Roberto Jacobo · CIK 0001767603 · EVP & Chief Supply Chain Offr

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 59,035

F2 · shares: Pursuant to the terms of the February 28, 2019 RSU grant, 990 shares of Mattel, Inc. Common Stock were automatically withheld at vesting to cover required tax withholding.

SEC source: 0001523711-21-000016 · wf-form4_161472450647794.xml · nonDerivative · entry 1

Isaias Zanatta Roberto Jacobo · CIK 0001767603 · EVP & Chief Supply Chain Offr

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 60,025

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 February 28, 2019 and filed on March 4, 2019, the Reporting Person received a grant of 8,669 Restricted Stock Units ("RSUs" or "Units") on February 28, 2019. 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 February 28, 2021, the second 33% of these RSUs vested, resulting in the issuance of 2,861 shares of Mattel, Inc. Common Stock.

SEC source: 0001523711-21-000014 · wf-form4_161299577403964.xml · nonDerivative · entry 2

Thompson Amanda J · CIK 0001718049 · EVP & Chief People Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 87,811

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

SEC source: 0001523711-21-000014 · wf-form4_161299577403964.xml · nonDerivative · entry 1

Thompson Amanda J · CIK 0001718049 · EVP & Chief People Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 101,823

SEC source: 0001523711-21-000013 · wf-form4_161299562053113.xml · nonDerivative · entry 2

Isaias Zanatta Roberto Jacobo · CIK 0001767603 · EVP & Chief Supply Chain Offr

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 57,164

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

SEC source: 0001523711-21-000013 · wf-form4_161299562053113.xml · nonDerivative · entry 1

Isaias Zanatta Roberto Jacobo · CIK 0001767603 · EVP & Chief Supply Chain Offr

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 61,795

SEC source: 0001523711-21-000012 · wf-form4_161299553696917.xml · nonDerivative · entry 2

TOTZKE STEVE · CIK 0001666142 · EVP, Chief Comm Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,556

SEC source: 0001523711-21-000012 · wf-form4_161299553696917.xml · nonDerivative · entry 1

TOTZKE STEVE · CIK 0001666142 · EVP, Chief Comm Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 58,562

SEC source: 0001523711-21-000011 · wf-form4_161299544838659.xml · nonDerivative · entry 2

Kreiz Ynon · CIK 0001708842 · Director · Chairman & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 285,591

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

SEC source: 0001523711-21-000011 · wf-form4_161299544838659.xml · nonDerivative · entry 1

Kreiz Ynon · CIK 0001708842 · Director · Chairman & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 431,852

SEC source: 0001523711-21-000010 · wf-form4_161299532459230.xml · nonDerivative · entry 2

Dickson Richard · CIK 0001482551 · Pres & Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 278,638

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

SEC source: 0001523711-21-000010 · wf-form4_161299532459230.xml · nonDerivative · entry 1

Dickson Richard · CIK 0001482551 · Pres & Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 351,145

SEC source: 0001523711-21-000004 · wf-form4_161230159200927.xml · derivative · entry 2

Anschell Jonathan · CIK 0001661969 · EVP Chief Legal Officer & Sec

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,626

Underlying: Common Stock · 18,626 shares

Expires not disclosed

F2 · derivative.exercise_price: The Restricted Stock Units ("RSUs" or "Units") were granted on January 29, 2021 pursuant to 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).

F3 · 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.

F3 · 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: 0001523711-21-000004 · wf-form4_161230159200927.xml · derivative · entry 1

Anschell Jonathan · CIK 0001661969 · EVP Chief Legal Officer & Sec

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 44,060

Underlying: Common Stock · 44,060 shares

Expires 2031-01-29

F1 · derivative.exercise_date: The option was granted on January 29, 2021 pursuant to the Mattel, Inc. Amended and Restated 2010 Equity and Long-Term Compensation Plan, as amended (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: 0001523711-20-000061 · wf-form4_160157964938663.xml · derivative · entry 9

Thompson Amanda J · CIK 0001718049 · EVP & Chief People Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 7,688 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 3 dated September 29, 2017 and filed on October 3, 2017, the Reporting Person received a grant of 22,610 RSUs on September 29, 2017. 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 September 29, 2020, the final 34% of these RSUs vested, resulting in the issuance of 7,688 shares of Mattel, Inc. Common Stock.

F3 · derivative.exercise_date: As reported on a Form 3 dated September 29, 2017 and filed on October 3, 2017, the Reporting Person received a grant of 22,610 RSUs on September 29, 2017. 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 September 29, 2020, the final 34% of these RSUs vested, resulting in the issuance of 7,688 shares of Mattel, Inc. Common Stock.

F3 · derivative.expiration_date: As reported on a Form 3 dated September 29, 2017 and filed on October 3, 2017, the Reporting Person received a grant of 22,610 RSUs on September 29, 2017. 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 September 29, 2020, the final 34% of these RSUs vested, resulting in the issuance of 7,688 shares of Mattel, Inc. Common Stock.

SEC source: 0001523711-20-000061 · wf-form4_160157964938663.xml · derivative · entry 8

Thompson Amanda J · CIK 0001718049 · EVP & Chief People Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 7,688 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 3 dated September 29, 2017 and filed on October 3, 2017, the Reporting Person received a grant of 22,610 RSUs on September 29, 2017. 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 September 29, 2020, the final 34% of these RSUs vested, resulting in the issuance of 7,688 shares of Mattel, Inc. Common Stock.

F3 · derivative.exercise_date: As reported on a Form 3 dated September 29, 2017 and filed on October 3, 2017, the Reporting Person received a grant of 22,610 RSUs on September 29, 2017. 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 September 29, 2020, the final 34% of these RSUs vested, resulting in the issuance of 7,688 shares of Mattel, Inc. Common Stock.

F3 · derivative.expiration_date: As reported on a Form 3 dated September 29, 2017 and filed on October 3, 2017, the Reporting Person received a grant of 22,610 RSUs on September 29, 2017. 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 September 29, 2020, the final 34% of these RSUs vested, resulting in the issuance of 7,688 shares of Mattel, Inc. Common Stock.

SEC source: 0001523711-20-000061 · wf-form4_160157964938663.xml · derivative · entry 7

Thompson Amanda J · CIK 0001718049 · EVP & Chief People Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 13,179 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 3 dated September 29, 2017 and filed on October 3, 2017, the Reporting Person received a grant of 38,760 Restricted Stock Units ("RSUs" or "Units") on September 29, 2017. 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 September 29, 2020, the final 34% of these RSUs vested, resulting in the issuance of 13,179 shares of Mattel, Inc. Common Stock.

F1 · derivative.exercise_date: As reported on a Form 3 dated September 29, 2017 and filed on October 3, 2017, the Reporting Person received a grant of 38,760 Restricted Stock Units ("RSUs" or "Units") on September 29, 2017. 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 September 29, 2020, the final 34% of these RSUs vested, resulting in the issuance of 13,179 shares of Mattel, Inc. Common Stock.

F1 · derivative.expiration_date: As reported on a Form 3 dated September 29, 2017 and filed on October 3, 2017, the Reporting Person received a grant of 38,760 Restricted Stock Units ("RSUs" or "Units") on September 29, 2017. 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 September 29, 2020, the final 34% of these RSUs vested, resulting in the issuance of 13,179 shares of Mattel, Inc. Common Stock.

SEC source: 0001523711-20-000061 · wf-form4_160157964938663.xml · nonDerivative · entry 6

Thompson Amanda J · CIK 0001718049 · EVP & Chief People Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 62,207

F5 · shares: Pursuant to the terms of the September 29, 2017 RSU grant, 3,812 shares of Mattel, Inc. Common Stock were automatically withheld at vesting to cover required tax withholding.

SEC source: 0001523711-20-000061 · wf-form4_160157964938663.xml · nonDerivative · entry 5

Thompson Amanda J · CIK 0001718049 · EVP & Chief People Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 66,019

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 3 dated September 29, 2017 and filed on October 3, 2017, the Reporting Person received a grant of 22,610 RSUs on September 29, 2017. 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 September 29, 2020, the final 34% of these RSUs vested, resulting in the issuance of 7,688 shares of Mattel, Inc. Common Stock.