Kreiz Ynon

SEC source: 0001193125-26-417092 · ownership.xml · derivative · entry 3

Kreiz Ynon · CIK 0001708842 · Director · Co-Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,673,836

Underlying: Class B Common Stock · 423,836 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the Issuer's Class B Common Stock.

F2 · derivative.exercise_date: The restricted stock units generally vest in equal quarterly installments over a 3-year period that commences on December 31, 2026.

F2 · derivative.expiration_date: The restricted stock units generally vest in equal quarterly installments over a 3-year period that commences on December 31, 2026.

SEC source: 0001193125-26-417092 · ownership.xml · derivative · entry 2

Kreiz Ynon · CIK 0001708842 · Director · Co-Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,250,000

Underlying: Class B Common Stock · 1,250,000 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the Issuer's Class B Common Stock.

F2 · derivative.exercise_date: The restricted stock units generally vest in equal quarterly installments over a 3-year period that commences on December 31, 2026.

F2 · derivative.expiration_date: The restricted stock units generally vest in equal quarterly installments over a 3-year period that commences on December 31, 2026.

SEC source: 0001193125-26-417092 · ownership.xml · nonDerivative · entry 1

Kreiz Ynon · CIK 0001708842 · Director · Co-Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,625,000

SEC source: 0001193125-26-382047 · ownership.xml · nonDerivative · entry 1

Kreiz Ynon · CIK 0001708842 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Ynon Kreiz Secondary SP Trust

Disclosed balance after: 36,910

F1 · shares: Reflects dividend equivalent rights accrued on outstanding restricted stock units.

F2 · balance_after: Includes restricted stock units.

SEC source: 0001193125-26-257682 · ownership.xml · nonDerivative · entry 1

Kreiz Ynon · CIK 0001708842 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Ynon Kreiz Secondary SP Trust

Disclosed balance after: 36,865

F1 · shares: Reflects dividend equivalent rights accrued on outstanding restricted stock units.

F2 · balance_after: Includes restricted stock units.

SEC source: 0001708842-26-000011 · wk-form4_1778532839.xml · derivative · entry 3

Kreiz Ynon · CIK 0001708842 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 103,999

Underlying: Common Stock · 51,222 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 7, 2025 and filed on May 9, 2025, the Reporting Person received a grant of 155,221 Restricted Stock Units ("RSUs" or "Units") on May 7, 2025. 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 May 7, 2026, the first 33% of these RSUs vested, resulting in the issuance of 51,222 shares of Mattel, Inc. Common Stock.

F1 · derivative.exercise_date: As reported on a Form 4 dated May 7, 2025 and filed on May 9, 2025, the Reporting Person received a grant of 155,221 Restricted Stock Units ("RSUs" or "Units") on May 7, 2025. 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 May 7, 2026, the first 33% of these RSUs vested, resulting in the issuance of 51,222 shares of Mattel, Inc. Common Stock.

F1 · derivative.expiration_date: As reported on a Form 4 dated May 7, 2025 and filed on May 9, 2025, the Reporting Person received a grant of 155,221 Restricted Stock Units ("RSUs" or "Units") on May 7, 2025. 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 May 7, 2026, the first 33% of these RSUs vested, resulting in the issuance of 51,222 shares of Mattel, Inc. Common Stock.

SEC source: 0001708842-26-000011 · wk-form4_1778532839.xml · nonDerivative · entry 2

Kreiz Ynon · CIK 0001708842 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,842,633

F2 · shares: Pursuant to the terms of the May 7, 2025 RSU grant, 26,062 shares of Mattel, Inc. Common Stock were automatically withheld at vesting to cover required tax withholding.

SEC source: 0001708842-26-000011 · wk-form4_1778532839.xml · nonDerivative · entry 1

Kreiz Ynon · CIK 0001708842 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,868,695

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 7, 2025 and filed on May 9, 2025, the Reporting Person received a grant of 155,221 Restricted Stock Units ("RSUs" or "Units") on May 7, 2025. 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 May 7, 2026, the first 33% of these RSUs vested, resulting in the issuance of 51,222 shares of Mattel, Inc. Common Stock.

SEC source: 0001708842-26-000009 · wk-form4_1778013873.xml · derivative · entry 1

Kreiz Ynon · CIK 0001708842 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 181,212

Underlying: Common Stock · 181,212 shares

Expires not disclosed

F1 · derivative.exercise_price: The Restricted Stock Units ("RSUs" or "Units") were granted on May 1, 2026 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: 0001708842-26-000007 · wk-form4_1777408766.xml · derivative · entry 3

Kreiz Ynon · CIK 0001708842 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 48,782

Underlying: Common Stock · 47,347 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 143,476 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 24, 2026, the second 33% of these RSUs vested, resulting in the issuance of 47,347 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 143,476 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 24, 2026, the second 33% of these RSUs vested, resulting in the issuance of 47,347 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 143,476 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 24, 2026, the second 33% of these RSUs vested, resulting in the issuance of 47,347 shares of Mattel, Inc. Common Stock.

SEC source: 0001708842-26-000007 · wk-form4_1777408766.xml · nonDerivative · entry 2

Kreiz Ynon · CIK 0001708842 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,817,473

F2 · shares: Pursuant to the terms of the April 25, 2024 RSU grant, 24,091 shares of Mattel, Inc. Common Stock were automatically withheld at vesting to cover required tax withholding.

SEC source: 0001708842-26-000007 · wk-form4_1777408766.xml · nonDerivative · entry 1

Kreiz Ynon · CIK 0001708842 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,841,564

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 143,476 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 24, 2026, the second 33% of these RSUs vested, resulting in the issuance of 47,347 shares of Mattel, Inc. Common Stock.

SEC source: 0001193125-26-097031 · ownership.xml · nonDerivative · entry 1

Kreiz Ynon · CIK 0001708842 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Ynon Kreiz Secondary SP Trust

Disclosed balance after: 36,827

F1 · balance_after: Includes restricted shares and restricted stock units. Includes 140 previously unreported shares earned in respect of dividends on restricted stock units granted March 4, 2025.

SEC source: 0001708842-26-000005 · wk-form4_1770928784.xml · nonDerivative · entry 1

Kreiz Ynon · CIK 0001708842 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,794,217

F1 · price: This transaction was executed in multiple trades at prices ranging from $15.33 to $15.655. The price reported reflects the weighted-average purchase price. The Reporting Person hereby undertakes to provide to the SEC staff, the issuer, or a security holder of the issuer, upon request, full information regarding the number of shares and prices at which the transactions were effected.

SEC source: 0001708842-26-000002 · wk-form4_1770852435.xml · nonDerivative · entry 2

Kreiz Ynon · CIK 0001708842 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,729,217

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

SEC source: 0001708842-26-000002 · wk-form4_1770852435.xml · nonDerivative · entry 1

Kreiz Ynon · CIK 0001708842 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,982,688

SEC source: 0001523711-25-000057 · wk-form4_1746824801.xml · derivative · entry 1

Kreiz Ynon · CIK 0001708842 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 155,221

Underlying: Common Stock · 155,221 shares

Expires not disclosed

F1 · derivative.exercise_price: The Restricted Stock Units ("RSUs" or "Units") were granted on May 7, 2025 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: 0001523711-25-000025 · wk-form4_1745963705.xml · derivative · entry 3

Kreiz Ynon · CIK 0001708842 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 96,129

Underlying: Common Stock · 47,347 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 143,476 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 47,347 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 143,476 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 47,347 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 143,476 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 47,347 shares of Mattel, Inc. Common Stock.

SEC source: 0001523711-25-000025 · wk-form4_1745963705.xml · nonDerivative · entry 2

Kreiz Ynon · CIK 0001708842 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,470,890

F2 · shares: Pursuant to the terms of the April 25, 2024 RSU grant, 24,043 shares of Mattel, Inc. Common Stock were automatically withheld at vesting to cover required tax withholding.

SEC source: 0001523711-25-000025 · wk-form4_1745963705.xml · nonDerivative · entry 1

Kreiz Ynon · CIK 0001708842 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,494,933

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 143,476 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 47,347 shares of Mattel, Inc. Common Stock.

SEC source: 0000950170-25-034936 · ownership.xml · nonDerivative · entry 1

Kreiz Ynon · CIK 0001708842 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Ynon Kreiz Secondary SP Trust

Disclosed balance after: 30,501

F1 · balance_after: Includes restricted shares and restricted stock units.

SEC source: 0001523711-25-000013 · wk-form4_1738794904.xml · nonDerivative · entry 2

Kreiz Ynon · CIK 0001708842 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,447,586

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

SEC source: 0001523711-25-000013 · wk-form4_1738794904.xml · nonDerivative · entry 1

Kreiz Ynon · CIK 0001708842 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,502,422

SEC source: 0001523711-24-000112 · wk-form4_1727903332.xml · derivative · entry 1

Kreiz Ynon · CIK 0001708842 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 787,402

Underlying: Common Stock · 787,402 shares

Expires not disclosed

F1 · derivative.exercise_price: As disclosed on a Form 8-K filed on September 13, 2024 ("Form 8-K"), Performance-Based Restricted Stock Units were granted to the Reporting Person on September 30, 2024, pursuant to the Mattel, Inc. Amended and Restated 2010 Equity and Long-Term Compensation Plan, as amended (the "Plan"), including Performance-Based Restricted Units with vesting tied to stock price performance hurdles ("Performance Units"). Each Performance 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 Performance Units are subject to performance-based vesting requirements tied to stock price performance hurdles. The Performance Units set forth in the table above will become eligible to vest upon achievement of the following stock price hurdles at any time during the period beginning on September 30, 2026 and ending on September 30, 2029 (the "Performance Measurement Period"): (i) 0% of the Performance Units for a stock price hurdle of $27.00, (ii) 50% of the Performance Units for a stock price hurdle of $33.50, and (iii) 100% of the Performance Units for a stock price hurdle of $40.00. A stock price hurdle will be achieved only if the average closing price of the Issuer's common stock is equal to or greater than the hurdle for 30 consecutive trading days during the Performance Measurement Period. Linear interpolation will be used for achievement levels between the stock price hurdles.

F3 · derivative.exercise_date: If Performance Units become eligible to vest, the eligible Performance Units will vest and settle within fifteen (15) business days following September 30, 2029 and approval by the Compensation Committee of the Board of Directors of Mattel, Inc. of the achievement of the stock price hurdles, but in no event later than March 15, 2030, subject to the Reporting Person's continued employment with the Issuer through the settlement date. In addition to the Performance Units described above, separate Performance-Based Restricted Units will become eligible to vest based on the Issuer's relative total stockholder return over a period beginning on September 30, 2024, and ending on September 30, 2029 (as more fully described in the Form 8-K).

F2 · derivative.expiration_date: The Performance Units are subject to performance-based vesting requirements tied to stock price performance hurdles. The Performance Units set forth in the table above will become eligible to vest upon achievement of the following stock price hurdles at any time during the period beginning on September 30, 2026 and ending on September 30, 2029 (the "Performance Measurement Period"): (i) 0% of the Performance Units for a stock price hurdle of $27.00, (ii) 50% of the Performance Units for a stock price hurdle of $33.50, and (iii) 100% of the Performance Units for a stock price hurdle of $40.00. A stock price hurdle will be achieved only if the average closing price of the Issuer's common stock is equal to or greater than the hurdle for 30 consecutive trading days during the Performance Measurement Period. Linear interpolation will be used for achievement levels between the stock price hurdles.

F3 · derivative.expiration_date: If Performance Units become eligible to vest, the eligible Performance Units will vest and settle within fifteen (15) business days following September 30, 2029 and approval by the Compensation Committee of the Board of Directors of Mattel, Inc. of the achievement of the stock price hurdles, but in no event later than March 15, 2030, subject to the Reporting Person's continued employment with the Issuer through the settlement date. In addition to the Performance Units described above, separate Performance-Based Restricted Units will become eligible to vest based on the Issuer's relative total stockholder return over a period beginning on September 30, 2024, and ending on September 30, 2029 (as more fully described in the Form 8-K).

SEC source: 0001523711-24-000034 · wk-form4_1714428499.xml · derivative · entry 1

Kreiz Ynon · CIK 0001708842 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 143,476

Underlying: Common Stock · 143,476 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: 0001209191-24-004658 · doc4.xml · nonDerivative · entry 1

Kreiz Ynon · CIK 0001708842 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Ynon Kreiz Secondary SP Trust

Disclosed balance after: 25,212

F1 · balance_after: Includes restricted shares.

SEC source: 0001523711-24-000026 · wk-form4_1707348442.xml · nonDerivative · entry 2

Kreiz Ynon · CIK 0001708842 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,377,862

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

SEC source: 0001523711-24-000026 · wk-form4_1707348442.xml · nonDerivative · entry 1

Kreiz Ynon · CIK 0001708842 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,537,308

SEC source: 0001523711-23-000037 · wf-form4_168307459696476.xml · derivative · entry 1

Kreiz Ynon · CIK 0001708842 · Director · Chairman & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 320,216

Underlying: Common Stock · 320,216 shares

Expires 2033-04-28

F1 · 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: 0001209191-23-014976 · doc4.xml · nonDerivative · entry 1

Kreiz Ynon · CIK 0001708842 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Ynon Kreiz Secondary SP Trust

Disclosed balance after: 20,299

F1 · balance_after: Includes restricted shares.

SEC source: 0001523711-23-000013 · wf-form4_167599083969605.xml · nonDerivative · entry 2

Kreiz Ynon · CIK 0001708842 · Director · Chairman & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,206,666

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

SEC source: 0001523711-23-000013 · wf-form4_167599083969605.xml · nonDerivative · entry 1

Kreiz Ynon · CIK 0001708842 · Director · Chairman & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,663,807

SEC source: 0001523711-22-000023 · wf-form4_165162159371813.xml · derivative · entry 1

Kreiz Ynon · CIK 0001708842 · Director · Chairman & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 222,054

Underlying: Common Stock · 222,054 shares

Expires 2032-04-29

F1 · derivative.exercise_date: The option was granted on April 29, 2022 pursuant to the Mattel, Inc. Amended and Restated 2010 Equity and Long-Term Compensation Plan, as amended. 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: 0001127602-22-007811 · form4.xml · nonDerivative · entry 1

Kreiz Ynon · CIK 0001708842 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Ynon Kreiz Secondary SP Trust

Disclosed balance after: 14,754

F1 · balance_after: Includes restricted shares.

SEC source: 0001523711-22-000006 · wf-form4_164445261381677.xml · nonDerivative · entry 2

Kreiz Ynon · CIK 0001708842 · Director · Chairman & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 727,219

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

SEC source: 0001523711-22-000006 · wf-form4_164445261381677.xml · nonDerivative · entry 1

Kreiz Ynon · CIK 0001708842 · Director · Chairman & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,125,745

SEC source: 0001523711-21-000052 · wf-form4_162803986617954.xml · derivative · entry 4

Kreiz Ynon · CIK 0001708842 · Director · Chairman & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 789,532

Underlying: Common Stock · 265,957 shares

Expires 2031-08-02

F3 · derivative.exercise_date: The option was granted on August 2, 2021 pursuant to the Mattel, Inc. Amended and Restated 2010 Equity and Long-Term Compensation Plan, as amended. 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: 0001523711-21-000052 · wf-form4_162803986617954.xml · derivative · entry 3

Kreiz Ynon · CIK 0001708842 · Director · Chairman & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 44,440 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 1, 2018 and filed on August 3, 2018, the Reporting Person received a grant of 130,703 Restricted Stock Units ("RSUs" or "Units") on August 1, 2018. 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 1, 2021, the remaining 34% of these RSUs vested, resulting in the issuance of 44,440 shares of Mattel, Inc. Common Stock.

F1 · derivative.exercise_date: As reported on a Form 4 dated August 1, 2018 and filed on August 3, 2018, the Reporting Person received a grant of 130,703 Restricted Stock Units ("RSUs" or "Units") on August 1, 2018. 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 1, 2021, the remaining 34% of these RSUs vested, resulting in the issuance of 44,440 shares of Mattel, Inc. Common Stock.

F1 · derivative.expiration_date: As reported on a Form 4 dated August 1, 2018 and filed on August 3, 2018, the Reporting Person received a grant of 130,703 Restricted Stock Units ("RSUs" or "Units") on August 1, 2018. 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 1, 2021, the remaining 34% of these RSUs vested, resulting in the issuance of 44,440 shares of Mattel, Inc. Common Stock.

SEC source: 0001523711-21-000052 · wf-form4_162803986617954.xml · nonDerivative · entry 2

Kreiz Ynon · CIK 0001708842 · Director · Chairman & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 307,997

F2 · shares: Pursuant to the terms of the August 1, 2018 RSU grant, 22,034 shares of Mattel, Inc. Common Stock were automatically withheld at vesting to cover required tax withholding.

SEC source: 0001523711-21-000052 · wf-form4_162803986617954.xml · nonDerivative · entry 1

Kreiz Ynon · CIK 0001708842 · Director · Chairman & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 330,031

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 1, 2018 and filed on August 3, 2018, the Reporting Person received a grant of 130,703 Restricted Stock Units ("RSUs" or "Units") on August 1, 2018. 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 1, 2021, the remaining 34% of these RSUs vested, resulting in the issuance of 44,440 shares of Mattel, Inc. Common Stock.

SEC source: 0001127602-21-009276 · form4.xml · nonDerivative · entry 1

Kreiz Ynon · CIK 0001708842 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,922

F1 · balance_after: Includes restricted shares.

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: 0001209191-20-047202 · doc4.xml · nonDerivative · entry 1

Kreiz Ynon · CIK 0001708842 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,197

F1 · balance_after: Includes restricted shares.

SEC source: 0001523711-20-000053 · wf-form4_159658298167584.xml · derivative · entry 3

Kreiz Ynon · CIK 0001708842 · Director · Chairman & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 44,440

Underlying: Common Stock · 43,132 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 1, 2018 and filed on August 3, 2018, the Reporting Person received a grant of 130,703 Restricted Stock Units ("RSUs" or "Units") on August 1, 2018. 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 August 1, 2020, the second 33% of these RSUs vested, resulting in the issuance of 43,132 shares of Mattel, Inc. Common Stock.

F1 · derivative.exercise_date: As reported on a Form 4 dated August 1, 2018 and filed on August 3, 2018, the Reporting Person received a grant of 130,703 Restricted Stock Units ("RSUs" or "Units") on August 1, 2018. 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 August 1, 2020, the second 33% of these RSUs vested, resulting in the issuance of 43,132 shares of Mattel, Inc. Common Stock.

F1 · derivative.expiration_date: As reported on a Form 4 dated August 1, 2018 and filed on August 3, 2018, the Reporting Person received a grant of 130,703 Restricted Stock Units ("RSUs" or "Units") on August 1, 2018. 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 August 1, 2020, the second 33% of these RSUs vested, resulting in the issuance of 43,132 shares of Mattel, Inc. Common Stock.

SEC source: 0001523711-20-000053 · wf-form4_159658298167584.xml · nonDerivative · entry 2

Kreiz Ynon · CIK 0001708842 · Director · Chairman & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 120,584

F2 · shares: Pursuant to the terms of the August 1, 2018 RSU grant, 21,385 shares of Mattel, Inc. Common Stock were automatically withheld at vesting to cover required tax withholding.

SEC source: 0001523711-20-000053 · wf-form4_159658298167584.xml · nonDerivative · entry 1

Kreiz Ynon · CIK 0001708842 · Director · Chairman & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 141,969

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 1, 2018 and filed on August 3, 2018, the Reporting Person received a grant of 130,703 Restricted Stock Units ("RSUs" or "Units") on August 1, 2018. 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 August 1, 2020, the second 33% of these RSUs vested, resulting in the issuance of 43,132 shares of Mattel, Inc. Common Stock.

SEC source: 0001523711-20-000053 · wf-form4_159658298167584.xml · derivative · entry 4

Kreiz Ynon · CIK 0001708842 · Director · Chairman & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 523,575

Underlying: Common Stock · 523,575 shares

Expires 2030-07-31

F3 · derivative.exercise_date: The option was granted on July 31, 2020 pursuant to the Mattel, Inc. Amended and Restated 2010 Equity and Long-Term Compensation Plan, as amended. 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: 0001523711-20-000023 · wf-form4_159225339791361.xml · derivative · entry 2

Kreiz Ynon · CIK 0001708842 · Director · Chairman & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 5,666 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 13, 2017 and filed on June 14, 2017, the Reporting Person received a grant of 5,666 Restricted Stock Units ("RSUs") on June 13, 2017. The RSUs were fully vested on the grant date and are settled on the third anniversary of the grant date. On June 12, 2020, 100% of these RSUs were settled, resulting in the issuance of 5,666 shares of Mattel Common Stock.

F1 · derivative.exercise_date: As reported on a Form 4 dated June 13, 2017 and filed on June 14, 2017, the Reporting Person received a grant of 5,666 Restricted Stock Units ("RSUs") on June 13, 2017. The RSUs were fully vested on the grant date and are settled on the third anniversary of the grant date. On June 12, 2020, 100% of these RSUs were settled, resulting in the issuance of 5,666 shares of Mattel Common Stock.

F1 · derivative.expiration_date: As reported on a Form 4 dated June 13, 2017 and filed on June 14, 2017, the Reporting Person received a grant of 5,666 Restricted Stock Units ("RSUs") on June 13, 2017. The RSUs were fully vested on the grant date and are settled on the third anniversary of the grant date. On June 12, 2020, 100% of these RSUs were settled, resulting in the issuance of 5,666 shares of Mattel Common Stock.

SEC source: 0001523711-20-000023 · wf-form4_159225339791361.xml · nonDerivative · entry 1

Kreiz Ynon · CIK 0001708842 · Director · Chairman & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 98,837

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 13, 2017 and filed on June 14, 2017, the Reporting Person received a grant of 5,666 Restricted Stock Units ("RSUs") on June 13, 2017. The RSUs were fully vested on the grant date and are settled on the third anniversary of the grant date. On June 12, 2020, 100% of these RSUs were settled, resulting in the issuance of 5,666 shares of Mattel Common Stock.