{"transactions":[{"id":4640481,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":43050,"kind":"person","name":"Lynch Roger","position":1,"cik":"0001476295","reported_name":"Lynch Roger","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Restricted Stock Units","published_at":"2026-10-14T21:00:55.000Z","date":"2026-10-12","kind":"grant","planned":false,"acquired":true,"shares":307692,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"On October 12, 2026, the Reporting Person was granted 307,692 Annual RSUs 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)."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The Annual RSUs vest as to (a) 33% of the Units on May 1, 2027, (b) an additional 33% of the Units on May 1, 2028, and (c) the remaining 34% of the Units on May 1, 2029. 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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"The Annual RSUs vest as to (a) 33% of the Units on May 1, 2027, (b) an additional 33% of the Units on May 1, 2028, and (c) the remaining 34% of the Units on May 1, 2029. 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."}],"balance_after":307692,"derivative":{"underlying":"Common Stock","underlying_shares":307692},"source":{"system":"sec-edgar","filing":"0001476295-26-000006","document":"wk-form4_1792011652.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1476295/000147629526000006/wk-form4_1792011652.xml","form_type":"4"}},{"id":4640480,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":43050,"kind":"person","name":"Lynch Roger","position":1,"cik":"0001476295","reported_name":"Lynch Roger","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Common Stock","published_at":"2026-10-14T21:00:55.000Z","date":"2026-10-12","kind":"tax_withholding","planned":false,"acquired":false,"shares":234831,"price":16.76,"value":3935767.56,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Pursuant to the terms of the October 12, 2026 Make-Whole Award, 234,831 shares of Mattel, Inc. Common Stock were automatically withheld at vesting to cover required tax withholding."}],"balance_after":257491,"source":{"system":"sec-edgar","filing":"0001476295-26-000006","document":"wk-form4_1792011652.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1476295/000147629526000006/wk-form4_1792011652.xml","form_type":"4"}},{"id":4640479,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":43050,"kind":"person","name":"Lynch Roger","position":1,"cik":"0001476295","reported_name":"Lynch Roger","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Common Stock","published_at":"2026-10-14T21:00:55.000Z","date":"2026-10-12","kind":"grant","planned":false,"acquired":true,"shares":461538,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On October 12, 2026, the Reporting Person was granted a Make-Whole Award of 461,538 Restricted Stock Units (\"RSUs\" or \"Units\") pursuant to the Mattel, Inc. Amended and Restated 2010 Equity and Long-Term Compensation Plan, as amended (the \"Plan\"). The RSUs vested immediately upon grant, and each Unit was settled for one share of Mattel, Inc. Common Stock on the grant date."}],"balance_after":492322,"source":{"system":"sec-edgar","filing":"0001476295-26-000006","document":"wk-form4_1792011652.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1476295/000147629526000006/wk-form4_1792011652.xml","form_type":"4"}},{"id":4631959,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":27025,"kind":"person","name":"Stanichi Roberto Seixas","position":1,"cik":"0002148131","reported_name":"Stanichi Roberto Seixas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Pres., Chief Mktg & Brand Ofc"}}],"security":"Restricted Stock Units","published_at":"2026-10-03T00:22:05.000Z","date":"2026-09-30","kind":"exercise","planned":false,"acquired":false,"shares":1715,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"As reported on a Form 3 dated July 29, 2026 and filed on August 4, 2026, the Reporting Person received a grant of 5,199 Restricted Stock Units (\"RSUs\" or \"Units\") on September 30, 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 September 30, 2026, the first 33% of these RSUs vested, resulting in the issuance of 1,715 shares of Mattel, Inc. Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"As reported on a Form 3 dated July 29, 2026 and filed on August 4, 2026, the Reporting Person received a grant of 5,199 Restricted Stock Units (\"RSUs\" or \"Units\") on September 30, 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 September 30, 2026, the first 33% of these RSUs vested, resulting in the issuance of 1,715 shares of Mattel, Inc. Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"As reported on a Form 3 dated July 29, 2026 and filed on August 4, 2026, the Reporting Person received a grant of 5,199 Restricted Stock Units (\"RSUs\" or \"Units\") on September 30, 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 September 30, 2026, the first 33% of these RSUs vested, resulting in the issuance of 1,715 shares of Mattel, Inc. Common Stock."}],"balance_after":3484,"derivative":{"underlying":"Common Stock","underlying_shares":1715},"source":{"system":"sec-edgar","filing":"0002148131-26-000006","document":"wk-form4_1790972523.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/63276/000214813126000006/wk-form4_1790972523.xml","form_type":"4"}},{"id":4631958,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":27025,"kind":"person","name":"Stanichi Roberto Seixas","position":1,"cik":"0002148131","reported_name":"Stanichi Roberto Seixas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Pres., Chief Mktg & Brand Ofc"}}],"security":"Common Stock","published_at":"2026-10-03T00:22:05.000Z","date":"2026-09-30","kind":"tax_withholding","planned":false,"acquired":false,"shares":873,"price":12.66,"value":11052.18,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Pursuant to the terms of the September 30, 2025 RSU grant, 873 shares of Mattel, Inc. Common Stock were automatically withheld at vesting to cover required tax withholding."}],"balance_after":46771,"source":{"system":"sec-edgar","filing":"0002148131-26-000006","document":"wk-form4_1790972523.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/63276/000214813126000006/wk-form4_1790972523.xml","form_type":"4"}},{"id":4631957,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":27025,"kind":"person","name":"Stanichi Roberto Seixas","position":1,"cik":"0002148131","reported_name":"Stanichi Roberto Seixas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Pres., Chief Mktg & Brand Ofc"}}],"security":"Common Stock","published_at":"2026-10-03T00:22:05.000Z","date":"2026-09-30","kind":"exercise","planned":false,"acquired":true,"shares":1715,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"As reported on a Form 3 dated July 29, 2026 and filed on August 4, 2026, the Reporting Person received a grant of 5,199 Restricted Stock Units (\"RSUs\" or \"Units\") on September 30, 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 September 30, 2026, the first 33% of these RSUs vested, resulting in the issuance of 1,715 shares of Mattel, Inc. Common Stock."}],"balance_after":47644,"source":{"system":"sec-edgar","filing":"0002148131-26-000006","document":"wk-form4_1790972523.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/63276/000214813126000006/wk-form4_1790972523.xml","form_type":"4"}},{"id":1240,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":1047,"kind":"person","name":"Isaias Zanatta Roberto Jacobo","position":1,"cik":"0001767603","reported_name":"Isaias Zanatta Roberto Jacobo","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Supply Chain Offr"}}],"security":"Common Stock","published_at":"2026-09-02T22:21:14.000Z","date":"2026-08-31","kind":"sale","planned":false,"acquired":false,"shares":39083,"price":15.017,"value":586909.411,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This transaction was executed in multiple trades at prices ranging from $15.000 to $15.045. The price reported reflects the weighted average sale price, rounded to the nearest tenth of a cent. 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."}],"balance_after":144390,"source":{"system":"sec-edgar","filing":"0001767603-26-000012","document":"wk-form4_1788387672.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1767603/000176760326000012/wk-form4_1788387672.xml","form_type":"4"}},{"id":698445,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":27025,"kind":"person","name":"Stanichi Roberto Seixas","position":1,"cik":"0002148131","reported_name":"Stanichi Roberto Seixas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Pres., Chief Mktg & Brand Ofc"}}],"security":"Restricted Stock Units","published_at":"2026-08-04T21:53:39.000Z","date":"2026-07-31","kind":"grant","planned":false,"acquired":true,"shares":132538,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The Restricted Stock Units (\"RSUs\" or \"Units\") were granted on July 31, 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)."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The RSUs vest as to 50% of the Units granted on the first anniversary of the date of grant and as to the remaining 50% of the Units granted on the second 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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The RSUs vest as to 50% of the Units granted on the first anniversary of the date of grant and as to the remaining 50% of the Units granted on the second 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."}],"balance_after":132538,"derivative":{"underlying":"Common Stock","underlying_shares":132538},"source":{"system":"sec-edgar","filing":"0002148131-26-000004","document":"wk-form4_1785880416.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/63276/000214813126000004/wk-form4_1785880416.xml","form_type":"4"}},{"id":698444,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":27025,"kind":"person","name":"Stanichi Roberto Seixas","position":1,"cik":"0002148131","reported_name":"Stanichi Roberto Seixas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Pres., Chief Mktg & Brand Ofc"}}],"security":"Restricted Stock Units","published_at":"2026-08-04T21:53:39.000Z","date":"2026-07-31","kind":"grant","planned":false,"acquired":true,"shares":62956,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The Restricted Stock Units (\"RSUs\" or \"Units\") were granted on July 31, 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)."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"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."}],"balance_after":62956,"derivative":{"underlying":"Common Stock","underlying_shares":62956},"source":{"system":"sec-edgar","filing":"0002148131-26-000004","document":"wk-form4_1785880416.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/63276/000214813126000004/wk-form4_1785880416.xml","form_type":"4"}},{"id":756504,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":42669,"kind":"person","name":"Ruh Paul","position":1,"cik":"0001967445","reported_name":"Ruh Paul","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Restricted Stock Units","published_at":"2026-06-02T21:30:45.000Z","date":"2026-05-29","kind":"exercise","planned":false,"acquired":false,"shares":66209,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"As reported on a Form 4 dated May 30, 2025 and filed on June 3, 2025, the Reporting Person received a grant of 200,634 RSUs on May 30, 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 29, 2026, the first 33% of these RSUs vested, resulting in the issuance of 66,209 shares of Mattel, Inc. Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"As reported on a Form 4 dated May 30, 2025 and filed on June 3, 2025, the Reporting Person received a grant of 200,634 RSUs on May 30, 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 29, 2026, the first 33% of these RSUs vested, resulting in the issuance of 66,209 shares of Mattel, Inc. Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"As reported on a Form 4 dated May 30, 2025 and filed on June 3, 2025, the Reporting Person received a grant of 200,634 RSUs on May 30, 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 29, 2026, the first 33% of these RSUs vested, resulting in the issuance of 66,209 shares of Mattel, Inc. Common Stock."}],"balance_after":134425,"derivative":{"underlying":"Common Stock","underlying_shares":66209},"source":{"system":"sec-edgar","filing":"0001967445-26-000004","document":"wk-form4_1780435842.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/63276/000196744526000004/wk-form4_1780435842.xml","form_type":"4"}},{"id":756503,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":42669,"kind":"person","name":"Ruh Paul","position":1,"cik":"0001967445","reported_name":"Ruh Paul","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Restricted Stock Units","published_at":"2026-06-02T21:30:45.000Z","date":"2026-05-29","kind":"exercise","planned":false,"acquired":false,"shares":24610,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"As reported on a Form 4 dated May 30, 2025 and filed on June 3, 2025, the Reporting Person received a grant of 74,578 Restricted Stock Units (\"RSUs\" or \"Units\") on May 30, 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 29, 2026, the first 33% of these RSUs vested, resulting in the issuance of 24,610 shares of Mattel, Inc. Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"As reported on a Form 4 dated May 30, 2025 and filed on June 3, 2025, the Reporting Person received a grant of 74,578 Restricted Stock Units (\"RSUs\" or \"Units\") on May 30, 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 29, 2026, the first 33% of these RSUs vested, resulting in the issuance of 24,610 shares of Mattel, Inc. Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"As reported on a Form 4 dated May 30, 2025 and filed on June 3, 2025, the Reporting Person received a grant of 74,578 Restricted Stock Units (\"RSUs\" or \"Units\") on May 30, 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 29, 2026, the first 33% of these RSUs vested, resulting in the issuance of 24,610 shares of Mattel, Inc. Common Stock."}],"balance_after":49968,"derivative":{"underlying":"Common Stock","underlying_shares":24610},"source":{"system":"sec-edgar","filing":"0001967445-26-000004","document":"wk-form4_1780435842.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/63276/000196744526000004/wk-form4_1780435842.xml","form_type":"4"}},{"id":756502,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":42669,"kind":"person","name":"Ruh Paul","position":1,"cik":"0001967445","reported_name":"Ruh Paul","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2026-06-02T21:30:45.000Z","date":"2026-05-29","kind":"tax_withholding","planned":false,"acquired":false,"shares":31360,"price":14.94,"value":468518.4,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F4","text":"Pursuant to the terms of the May 30, 2025 RSU grant, 31,360 shares of Mattel, Inc. Common Stock were automatically withheld at vesting to cover required tax withholding."}],"balance_after":50788,"source":{"system":"sec-edgar","filing":"0001967445-26-000004","document":"wk-form4_1780435842.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/63276/000196744526000004/wk-form4_1780435842.xml","form_type":"4"}},{"id":756501,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":42669,"kind":"person","name":"Ruh Paul","position":1,"cik":"0001967445","reported_name":"Ruh Paul","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2026-06-02T21:30:45.000Z","date":"2026-05-29","kind":"exercise","planned":false,"acquired":true,"shares":66209,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"As reported on a Form 4 dated May 30, 2025 and filed on June 3, 2025, the Reporting Person received a grant of 200,634 RSUs on May 30, 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 29, 2026, the first 33% of these RSUs vested, resulting in the issuance of 66,209 shares of Mattel, Inc. 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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 29, 2026, the second 33% of these RSUs vested, resulting in the issuance of 16,695 shares of Mattel, Inc. Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"As reported on a Form 4 dated May 31, 2024 and filed on June 4, 2024, the Reporting Person received a grant of 50,590 Restricted Stock Units (\"RSUs\" or \"Units\") on May 31, 2024. 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The RSUs were fully vested on the grant date and are settled on the third anniversary of the grant date. On May 15, 2026, 100% of these RSUs were settled, resulting in the issuance of 8,594 shares of Mattel Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"As reported on a Form 4 dated May 15, 2023 and filed on May 17, 2023, the Reporting Person received a grant of 8,594 Restricted Stock Units (\"RSUs\") on May 15, 2023. The RSUs were fully vested on the grant date and are settled on the third anniversary of the grant date. On May 15, 2026, 100% of these RSUs were settled, resulting in the issuance of 8,594 shares of Mattel Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"As reported on a Form 4 dated May 15, 2023 and filed on May 17, 2023, the Reporting Person received a grant of 8,594 Restricted Stock Units (\"RSUs\") on May 15, 2023. The RSUs were fully vested on the grant date and are settled on the third anniversary of the grant date. On May 15, 2026, 100% of these RSUs were settled, resulting in the issuance of 8,594 shares of Mattel Common Stock."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":8594},"source":{"system":"sec-edgar","filing":"0001749229-26-000002","document":"wk-form4_1779226004.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/63276/000174922926000002/wk-form4_1779226004.xml","form_type":"4"}},{"id":774018,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":1830,"kind":"person","name":"Cisneros Adriana","position":1,"cik":"0001749229","reported_name":"Cisneros Adriana","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-19T21:26:46.000Z","date":"2026-05-15","kind":"exercise","planned":false,"acquired":true,"shares":8594,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"As reported on a Form 4 dated May 15, 2023 and filed on May 17, 2023, the Reporting Person received a grant of 8,594 Restricted Stock Units (\"RSUs\") on May 15, 2023. The RSUs were fully vested on the grant date and are settled on the third anniversary of the grant date. On May 15, 2026, 100% of these RSUs were settled, resulting in the issuance of 8,594 shares of Mattel Common Stock."}],"balance_after":37669,"source":{"system":"sec-edgar","filing":"0001749229-26-000002","document":"wk-form4_1779226004.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/63276/000174922926000002/wk-form4_1779226004.xml","form_type":"4"}},{"id":786031,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":2085,"kind":"person","name":"Kreiz Ynon","position":1,"cik":"0001708842","reported_name":"Kreiz Ynon","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Restricted Stock Units","published_at":"2026-05-11T20:54:04.000Z","date":"2026-05-07","kind":"exercise","planned":false,"acquired":false,"shares":51222,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"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."}],"balance_after":103999,"derivative":{"underlying":"Common Stock","underlying_shares":51222},"source":{"system":"sec-edgar","filing":"0001708842-26-000011","document":"wk-form4_1778532839.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/63276/000170884226000011/wk-form4_1778532839.xml","form_type":"4"}},{"id":786030,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":2085,"kind":"person","name":"Kreiz Ynon","position":1,"cik":"0001708842","reported_name":"Kreiz Ynon","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Common Stock","published_at":"2026-05-11T20:54:04.000Z","date":"2026-05-07","kind":"tax_withholding","planned":false,"acquired":false,"shares":26062,"price":15,"value":390930.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"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."}],"balance_after":1842633,"source":{"system":"sec-edgar","filing":"0001708842-26-000011","document":"wk-form4_1778532839.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/63276/000170884226000011/wk-form4_1778532839.xml","form_type":"4"}},{"id":786029,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":2085,"kind":"person","name":"Kreiz Ynon","position":1,"cik":"0001708842","reported_name":"Kreiz Ynon","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Common Stock","published_at":"2026-05-11T20:54:04.000Z","date":"2026-05-07","kind":"exercise","planned":false,"acquired":true,"shares":51222,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"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."}],"balance_after":1868695,"source":{"system":"sec-edgar","filing":"0001708842-26-000011","document":"wk-form4_1778532839.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/63276/000170884226000011/wk-form4_1778532839.xml","form_type":"4"}},{"id":786028,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":1047,"kind":"person","name":"Isaias Zanatta Roberto Jacobo","position":1,"cik":"0001767603","reported_name":"Isaias Zanatta Roberto Jacobo","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Supply Chain Offr"}}],"security":"Restricted Stock Units","published_at":"2026-05-11T20:53:37.000Z","date":"2026-05-07","kind":"exercise","planned":false,"acquired":false,"shares":17749,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"As reported on a Form 4 dated May 7, 2025 and filed on May 9, 2025, the Reporting Person received a grant of 53,787 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 17,749 shares of Mattel, Inc. Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"As reported on a Form 4 dated May 7, 2025 and filed on May 9, 2025, the Reporting Person received a grant of 53,787 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 17,749 shares of Mattel, Inc. Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"As reported on a Form 4 dated May 7, 2025 and filed on May 9, 2025, the Reporting Person received a grant of 53,787 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 17,749 shares of Mattel, Inc. Common Stock."}],"balance_after":36038,"derivative":{"underlying":"Common Stock","underlying_shares":17749},"source":{"system":"sec-edgar","filing":"0001767603-26-000010","document":"wk-form4_1778532815.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/63276/000176760326000010/wk-form4_1778532815.xml","form_type":"4"}},{"id":786027,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":1047,"kind":"person","name":"Isaias Zanatta Roberto Jacobo","position":1,"cik":"0001767603","reported_name":"Isaias Zanatta Roberto Jacobo","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Supply Chain Offr"}}],"security":"Common Stock","published_at":"2026-05-11T20:53:37.000Z","date":"2026-05-07","kind":"tax_withholding","planned":false,"acquired":false,"shares":9031,"price":15,"value":135465.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Pursuant to the terms of the May 7, 2025 RSU grant, 9,031 shares of Mattel, Inc. Common Stock were automatically withheld at vesting to cover required tax withholding."}],"balance_after":183473,"source":{"system":"sec-edgar","filing":"0001767603-26-000010","document":"wk-form4_1778532815.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/63276/000176760326000010/wk-form4_1778532815.xml","form_type":"4"}},{"id":786026,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":1047,"kind":"person","name":"Isaias Zanatta Roberto Jacobo","position":1,"cik":"0001767603","reported_name":"Isaias Zanatta Roberto Jacobo","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Supply Chain Offr"}}],"security":"Common Stock","published_at":"2026-05-11T20:53:37.000Z","date":"2026-05-07","kind":"exercise","planned":false,"acquired":true,"shares":17749,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"As reported on a Form 4 dated May 7, 2025 and filed on May 9, 2025, the Reporting Person received a grant of 53,787 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 17,749 shares of Mattel, Inc. Common Stock."}],"balance_after":192504,"source":{"system":"sec-edgar","filing":"0001767603-26-000010","document":"wk-form4_1778532815.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/63276/000176760326000010/wk-form4_1778532815.xml","form_type":"4"}},{"id":786025,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":48556,"kind":"person","name":"Hugh Yoon J.","position":1,"cik":"0001474865","reported_name":"Hugh Yoon J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP & Corporate Controller"}}],"security":"Restricted Stock Units","published_at":"2026-05-11T20:53:11.000Z","date":"2026-05-07","kind":"exercise","planned":false,"acquired":false,"shares":4417,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"As reported on a Form 4 dated May 7, 2025 and filed on May 9, 2025, the Reporting Person received a grant of 13,387 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 4,417 shares of Mattel, Inc. Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"As reported on a Form 4 dated May 7, 2025 and filed on May 9, 2025, the Reporting Person received a grant of 13,387 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 4,417 shares of Mattel, Inc. Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"As reported on a Form 4 dated May 7, 2025 and filed on May 9, 2025, the Reporting Person received a grant of 13,387 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 4,417 shares of Mattel, Inc. Common Stock."}],"balance_after":8970,"derivative":{"underlying":"Common Stock","underlying_shares":4417},"source":{"system":"sec-edgar","filing":"0001474865-26-000011","document":"wk-form4_1778532788.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/63276/000147486526000011/wk-form4_1778532788.xml","form_type":"4"}},{"id":786024,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":48556,"kind":"person","name":"Hugh Yoon J.","position":1,"cik":"0001474865","reported_name":"Hugh Yoon J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP & Corporate Controller"}}],"security":"Common Stock","published_at":"2026-05-11T20:53:11.000Z","date":"2026-05-07","kind":"tax_withholding","planned":false,"acquired":false,"shares":1585,"price":15,"value":23775.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Pursuant to the terms of the May 7, 2025 RSU grant, 1,585 shares of Mattel, Inc. Common Stock were automatically withheld at vesting to cover required tax withholding."}],"balance_after":38697,"source":{"system":"sec-edgar","filing":"0001474865-26-000011","document":"wk-form4_1778532788.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/63276/000147486526000011/wk-form4_1778532788.xml","form_type":"4"}},{"id":786023,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":48556,"kind":"person","name":"Hugh Yoon J.","position":1,"cik":"0001474865","reported_name":"Hugh Yoon J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP & Corporate Controller"}}],"security":"Common Stock","published_at":"2026-05-11T20:53:11.000Z","date":"2026-05-07","kind":"exercise","planned":false,"acquired":true,"shares":4417,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"As reported on a Form 4 dated May 7, 2025 and filed on May 9, 2025, the Reporting Person received a grant of 13,387 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 4,417 shares of Mattel, Inc. Common Stock."}],"balance_after":40282,"source":{"system":"sec-edgar","filing":"0001474865-26-000011","document":"wk-form4_1778532788.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/63276/000147486526000011/wk-form4_1778532788.xml","form_type":"4"}},{"id":786022,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":48555,"kind":"person","name":"Anschell Jonathan","position":1,"cik":"0001661969","reported_name":"Anschell Jonathan","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP Chief Legal Officer & Sec"}}],"security":"Restricted Stock Units","published_at":"2026-05-11T20:52:30.000Z","date":"2026-05-07","kind":"exercise","planned":false,"acquired":false,"shares":14673,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"As reported on a Form 4 dated May 7, 2025 and filed on May 9, 2025, the Reporting Person received a grant of 44,464 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 14,673 shares of Mattel, Inc. Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"As reported on a Form 4 dated May 7, 2025 and filed on May 9, 2025, the Reporting Person received a grant of 44,464 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 14,673 shares of Mattel, Inc. Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"As reported on a Form 4 dated May 7, 2025 and filed on May 9, 2025, the Reporting Person received a grant of 44,464 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 14,673 shares of Mattel, Inc. 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Common Stock were automatically withheld at vesting to cover required tax withholding."}],"balance_after":125610,"source":{"system":"sec-edgar","filing":"0001661969-26-000011","document":"wk-form4_1778532747.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/63276/000166196926000011/wk-form4_1778532747.xml","form_type":"4"}},{"id":786020,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":48555,"kind":"person","name":"Anschell Jonathan","position":1,"cik":"0001661969","reported_name":"Anschell Jonathan","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP Chief Legal Officer & Sec"}}],"security":"Common Stock","published_at":"2026-05-11T20:52:30.000Z","date":"2026-05-07","kind":"exercise","planned":false,"acquired":true,"shares":14673,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"As reported on a Form 4 dated May 7, 2025 and filed on May 9, 2025, the Reporting Person received a grant of 44,464 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 14,673 shares of Mattel, Inc. 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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 7,573 shares of Mattel, Inc. Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"As reported on a Form 4 dated May 7, 2025 and filed on May 9, 2025, the Reporting Person received a grant of 22,949 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 7,573 shares of Mattel, Inc. Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"As reported on a Form 4 dated May 7, 2025 and filed on May 9, 2025, the Reporting Person received a grant of 22,949 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 7,573 shares of Mattel, Inc. 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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 7,573 shares of Mattel, Inc. 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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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"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. 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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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"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. 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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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"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. 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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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"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."}],"balance_after":29303,"derivative":{"underlying":"Common Stock","underlying_shares":29303},"source":{"system":"sec-edgar","filing":"0002024410-26-000002","document":"wk-form4_1778013717.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/63276/000202441026000002/wk-form4_1778013717.xml","form_type":"4"}},{"id":797631,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":50773,"kind":"person","name":"TOTZKE STEVE","position":1,"cik":"0001666142","reported_name":"TOTZKE STEVE","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Chief Comm Officer"}}],"security":"Restricted Stock Units","published_at":"2026-04-30T21:40:44.000Z","date":"2026-04-28","kind":"exercise","planned":false,"acquired":false,"shares":15584,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"As reported on a Form 4 dated April 28, 2023 and filed on May 2, 2023, the Reporting Person received a grant of 45,833 Restricted Stock Units (\"RSUs\" or \"Units\") on April 28, 2023. The RSUs vested as to (a) 33% of the Units granted on the first anniversary of the date of grant, (b) an additional 33% of the Units granted on the second anniversary of the date of grant, and (c) the remaining 34% of the Units granted on the third anniversary of the date of grant. On each vesting date, for each Unit vesting on such date, the Reporting Person received one share of Mattel, Inc. Common Stock, subject to tax withholding. On April 28, 2026, the final 34% of these RSUs vested, resulting in the issuance of 15,584 shares of Mattel, Inc. Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"As reported on a Form 4 dated April 28, 2023 and filed on May 2, 2023, the Reporting Person received a grant of 45,833 Restricted Stock Units (\"RSUs\" or \"Units\") on April 28, 2023. The RSUs vested as to (a) 33% of the Units granted on the first anniversary of the date of grant, (b) an additional 33% of the Units granted on the second anniversary of the date of grant, and (c) the remaining 34% of the Units granted on the third anniversary of the date of grant. On each vesting date, for each Unit vesting on such date, the Reporting Person received one share of Mattel, Inc. Common Stock, subject to tax withholding. On April 28, 2026, the final 34% of these RSUs vested, resulting in the issuance of 15,584 shares of Mattel, Inc. Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"As reported on a Form 4 dated April 28, 2023 and filed on May 2, 2023, the Reporting Person received a grant of 45,833 Restricted Stock Units (\"RSUs\" or \"Units\") on April 28, 2023. The RSUs vested as to (a) 33% of the Units granted on the first anniversary of the date of grant, (b) an additional 33% of the Units granted on the second anniversary of the date of grant, and (c) the remaining 34% of the Units granted on the third anniversary of the date of grant. On each vesting date, for each Unit vesting on such date, the Reporting Person received one share of Mattel, Inc. Common Stock, subject to tax withholding. On April 28, 2026, the final 34% of these RSUs vested, resulting in the issuance of 15,584 shares of Mattel, Inc. Common Stock."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":15584},"source":{"system":"sec-edgar","filing":"0001666142-26-000006","document":"wk-form4_1777585241.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/63276/000166614226000006/wk-form4_1777585241.xml","form_type":"4"}},{"id":797630,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":50773,"kind":"person","name":"TOTZKE STEVE","position":1,"cik":"0001666142","reported_name":"TOTZKE STEVE","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Chief Comm Officer"}}],"security":"Common Stock","published_at":"2026-04-30T21:40:44.000Z","date":"2026-04-28","kind":"tax_withholding","planned":false,"acquired":false,"shares":7930,"price":14.79,"value":117284.7,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Pursuant to the terms of the April 28, 2023 RSU grant, 7,930 shares of Mattel, Inc. Common Stock were automatically withheld at vesting to cover required tax withholding."}],"balance_after":194994,"source":{"system":"sec-edgar","filing":"0001666142-26-000006","document":"wk-form4_1777585241.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/63276/000166614226000006/wk-form4_1777585241.xml","form_type":"4"}},{"id":797629,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":50773,"kind":"person","name":"TOTZKE STEVE","position":1,"cik":"0001666142","reported_name":"TOTZKE STEVE","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Chief Comm Officer"}}],"security":"Common Stock","published_at":"2026-04-30T21:40:44.000Z","date":"2026-04-28","kind":"exercise","planned":false,"acquired":true,"shares":15584,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"As reported on a Form 4 dated April 28, 2023 and filed on May 2, 2023, the Reporting Person received a grant of 45,833 Restricted Stock Units (\"RSUs\" or \"Units\") on April 28, 2023. The RSUs vested as to (a) 33% of the Units granted on the first anniversary of the date of grant, (b) an additional 33% of the Units granted on the second anniversary of the date of grant, and (c) the remaining 34% of the Units granted on the third anniversary of the date of grant. On each vesting date, for each Unit vesting on such date, the Reporting Person received one share of Mattel, Inc. Common Stock, subject to tax withholding. On April 28, 2026, the final 34% of these RSUs vested, resulting in the issuance of 15,584 shares of Mattel, Inc. Common Stock."}],"balance_after":202924,"source":{"system":"sec-edgar","filing":"0001666142-26-000006","document":"wk-form4_1777585241.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/63276/000166614226000006/wk-form4_1777585241.xml","form_type":"4"}},{"id":797628,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":1047,"kind":"person","name":"Isaias Zanatta Roberto Jacobo","position":1,"cik":"0001767603","reported_name":"Isaias Zanatta Roberto Jacobo","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Supply Chain Offr"}}],"security":"Restricted Stock Units","published_at":"2026-04-30T21:40:11.000Z","date":"2026-04-28","kind":"exercise","planned":false,"acquired":false,"shares":14545,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"As reported on a Form 4 dated April 28, 2023 and filed on May 2, 2023, the Reporting Person received a grant of 42,778 Restricted Stock Units (\"RSUs\" or \"Units\") on April 28, 2023. The RSUs vested as to (a) 33% of the Units granted on the first anniversary of the date of grant, (b) an additional 33% of the Units granted on the second anniversary of the date of grant, and (c) the remaining 34% of the Units granted on the third anniversary of the date of grant. On each vesting date, for each Unit vesting on such date, the Reporting Person received one share of Mattel, Inc. Common Stock, subject to tax withholding. On April 28, 2026, the final 34% of these RSUs vested, resulting in the issuance of 14,545 shares of Mattel, Inc. Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"As reported on a Form 4 dated April 28, 2023 and filed on May 2, 2023, the Reporting Person received a grant of 42,778 Restricted Stock Units (\"RSUs\" or \"Units\") on April 28, 2023. The RSUs vested as to (a) 33% of the Units granted on the first anniversary of the date of grant, (b) an additional 33% of the Units granted on the second anniversary of the date of grant, and (c) the remaining 34% of the Units granted on the third anniversary of the date of grant. On each vesting date, for each Unit vesting on such date, the Reporting Person received one share of Mattel, Inc. Common Stock, subject to tax withholding. On April 28, 2026, the final 34% of these RSUs vested, resulting in the issuance of 14,545 shares of Mattel, Inc. Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"As reported on a Form 4 dated April 28, 2023 and filed on May 2, 2023, the Reporting Person received a grant of 42,778 Restricted Stock Units (\"RSUs\" or \"Units\") on April 28, 2023. The RSUs vested as to (a) 33% of the Units granted on the first anniversary of the date of grant, (b) an additional 33% of the Units granted on the second anniversary of the date of grant, and (c) the remaining 34% of the Units granted on the third anniversary of the date of grant. On each vesting date, for each Unit vesting on such date, the Reporting Person received one share of Mattel, Inc. Common Stock, subject to tax withholding. On April 28, 2026, the final 34% of these RSUs vested, resulting in the issuance of 14,545 shares of Mattel, Inc. Common Stock."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":14545},"source":{"system":"sec-edgar","filing":"0001767603-26-000006","document":"wk-form4_1777585209.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/63276/000176760326000006/wk-form4_1777585209.xml","form_type":"4"}},{"id":797627,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":1047,"kind":"person","name":"Isaias Zanatta Roberto Jacobo","position":1,"cik":"0001767603","reported_name":"Isaias Zanatta Roberto Jacobo","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Supply Chain Offr"}}],"security":"Common Stock","published_at":"2026-04-30T21:40:11.000Z","date":"2026-04-28","kind":"tax_withholding","planned":false,"acquired":false,"shares":7401,"price":14.79,"value":109460.79,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Pursuant to the terms of the April 28, 2023 RSU grant, 7,401 shares of Mattel, Inc. Common Stock were automatically withheld at vesting to cover required tax withholding."}],"balance_after":174755,"source":{"system":"sec-edgar","filing":"0001767603-26-000006","document":"wk-form4_1777585209.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/63276/000176760326000006/wk-form4_1777585209.xml","form_type":"4"}},{"id":797626,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":1047,"kind":"person","name":"Isaias Zanatta Roberto Jacobo","position":1,"cik":"0001767603","reported_name":"Isaias Zanatta Roberto Jacobo","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Supply Chain Offr"}}],"security":"Common Stock","published_at":"2026-04-30T21:40:11.000Z","date":"2026-04-28","kind":"exercise","planned":false,"acquired":true,"shares":14545,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"As reported on a Form 4 dated April 28, 2023 and filed on May 2, 2023, the Reporting Person received a grant of 42,778 Restricted Stock Units (\"RSUs\" or \"Units\") on April 28, 2023. The RSUs vested as to (a) 33% of the Units granted on the first anniversary of the date of grant, (b) an additional 33% of the Units granted on the second anniversary of the date of grant, and (c) the remaining 34% of the Units granted on the third anniversary of the date of grant. On each vesting date, for each Unit vesting on such date, the Reporting Person received one share of Mattel, Inc. Common Stock, subject to tax withholding. On April 28, 2026, the final 34% of these RSUs vested, resulting in the issuance of 14,545 shares of Mattel, Inc. Common Stock."}],"balance_after":182156,"source":{"system":"sec-edgar","filing":"0001767603-26-000006","document":"wk-form4_1777585209.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/63276/000176760326000006/wk-form4_1777585209.xml","form_type":"4"}},{"id":797625,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":48556,"kind":"person","name":"Hugh Yoon J.","position":1,"cik":"0001474865","reported_name":"Hugh Yoon J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP & Corporate Controller"}}],"security":"Restricted Stock Units","published_at":"2026-04-30T21:39:42.000Z","date":"2026-04-28","kind":"exercise","planned":false,"acquired":false,"shares":4408,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"As reported on a Form 4 dated April 28, 2023 and filed on May 2, 2023, the Reporting Person received a grant of 12,963 Restricted Stock Units (\"RSUs\" or \"Units\") on April 28, 2023. The RSUs vested as to (a) 33% of the Units granted on the first anniversary of the date of grant, (b) an additional 33% of the Units granted on the second anniversary of the date of grant, and (c) the remaining 34% of the Units granted on the third anniversary of the date of grant. On each vesting date, for each Unit vesting on such date, the Reporting Person received one share of Mattel, Inc. Common Stock, subject to tax withholding. On April 28, 2026, the final 34% of these RSUs vested, resulting in the issuance of 4,408 shares of Mattel, Inc. Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"As reported on a Form 4 dated April 28, 2023 and filed on May 2, 2023, the Reporting Person received a grant of 12,963 Restricted Stock Units (\"RSUs\" or \"Units\") on April 28, 2023. The RSUs vested as to (a) 33% of the Units granted on the first anniversary of the date of grant, (b) an additional 33% of the Units granted on the second anniversary of the date of grant, and (c) the remaining 34% of the Units granted on the third anniversary of the date of grant. On each vesting date, for each Unit vesting on such date, the Reporting Person received one share of Mattel, Inc. Common Stock, subject to tax withholding. On April 28, 2026, the final 34% of these RSUs vested, resulting in the issuance of 4,408 shares of Mattel, Inc. Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"As reported on a Form 4 dated April 28, 2023 and filed on May 2, 2023, the Reporting Person received a grant of 12,963 Restricted Stock Units (\"RSUs\" or \"Units\") on April 28, 2023. The RSUs vested as to (a) 33% of the Units granted on the first anniversary of the date of grant, (b) an additional 33% of the Units granted on the second anniversary of the date of grant, and (c) the remaining 34% of the Units granted on the third anniversary of the date of grant. On each vesting date, for each Unit vesting on such date, the Reporting Person received one share of Mattel, Inc. Common Stock, subject to tax withholding. On April 28, 2026, the final 34% of these RSUs vested, resulting in the issuance of 4,408 shares of Mattel, Inc. Common Stock."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":4408},"source":{"system":"sec-edgar","filing":"0001474865-26-000007","document":"wk-form4_1777585180.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/63276/000147486526000007/wk-form4_1777585180.xml","form_type":"4"}},{"id":797624,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":48556,"kind":"person","name":"Hugh Yoon J.","position":1,"cik":"0001474865","reported_name":"Hugh Yoon J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP & Corporate Controller"}}],"security":"Common Stock","published_at":"2026-04-30T21:39:42.000Z","date":"2026-04-28","kind":"tax_withholding","planned":false,"acquired":false,"shares":1582,"price":14.79,"value":23397.78,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Pursuant to the terms of the April 28, 2023 RSU grant, 1,582 shares of Mattel, Inc. Common Stock were automatically withheld at vesting to cover required tax withholding."}],"balance_after":35865,"source":{"system":"sec-edgar","filing":"0001474865-26-000007","document":"wk-form4_1777585180.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/63276/000147486526000007/wk-form4_1777585180.xml","form_type":"4"}},{"id":797623,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":48556,"kind":"person","name":"Hugh Yoon J.","position":1,"cik":"0001474865","reported_name":"Hugh Yoon J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP & Corporate Controller"}}],"security":"Common Stock","published_at":"2026-04-30T21:39:42.000Z","date":"2026-04-28","kind":"exercise","planned":false,"acquired":true,"shares":4408,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"As reported on a Form 4 dated April 28, 2023 and filed on May 2, 2023, the Reporting Person received a grant of 12,963 Restricted Stock Units (\"RSUs\" or \"Units\") on April 28, 2023. The RSUs vested as to (a) 33% of the Units granted on the first anniversary of the date of grant, (b) an additional 33% of the Units granted on the second anniversary of the date of grant, and (c) the remaining 34% of the Units granted on the third anniversary of the date of grant. On each vesting date, for each Unit vesting on such date, the Reporting Person received one share of Mattel, Inc. Common Stock, subject to tax withholding. On April 28, 2026, the final 34% of these RSUs vested, resulting in the issuance of 4,408 shares of Mattel, Inc. Common Stock."}],"balance_after":37447,"source":{"system":"sec-edgar","filing":"0001474865-26-000007","document":"wk-form4_1777585180.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/63276/000147486526000007/wk-form4_1777585180.xml","form_type":"4"}},{"id":797621,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":48555,"kind":"person","name":"Anschell Jonathan","position":1,"cik":"0001661969","reported_name":"Anschell Jonathan","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP Chief Legal Officer & Sec"}}],"security":"Restricted Stock Units","published_at":"2026-04-30T21:37:26.000Z","date":"2026-04-28","kind":"exercise","planned":false,"acquired":false,"shares":13506,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"As reported on a Form 4 dated April 28, 2023 and filed on May 2, 2023, the Reporting Person received a grant of 39,722 Restricted Stock Units (\"RSUs\" or \"Units\") on April 28, 2023. The RSUs vested as to (a) 33% of the Units granted on the first anniversary of the date of grant, (b) an additional 33% of the Units granted on the second anniversary of the date of grant, and (c) the remaining 34% of the Units granted on the third anniversary of the date of grant. On each vesting date, for each Unit vesting on such date, the Reporting Person received one share of Mattel, Inc. Common Stock, subject to tax withholding. On April 28, 2026, the final 34% of these RSUs vested, resulting in the issuance of 13,506 shares of Mattel, Inc. Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"As reported on a Form 4 dated April 28, 2023 and filed on May 2, 2023, the Reporting Person received a grant of 39,722 Restricted Stock Units (\"RSUs\" or \"Units\") on April 28, 2023. The RSUs vested as to (a) 33% of the Units granted on the first anniversary of the date of grant, (b) an additional 33% of the Units granted on the second anniversary of the date of grant, and (c) the remaining 34% of the Units granted on the third anniversary of the date of grant. On each vesting date, for each Unit vesting on such date, the Reporting Person received one share of Mattel, Inc. Common Stock, subject to tax withholding. On April 28, 2026, the final 34% of these RSUs vested, resulting in the issuance of 13,506 shares of Mattel, Inc. Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"As reported on a Form 4 dated April 28, 2023 and filed on May 2, 2023, the Reporting Person received a grant of 39,722 Restricted Stock Units (\"RSUs\" or \"Units\") on April 28, 2023. The RSUs vested as to (a) 33% of the Units granted on the first anniversary of the date of grant, (b) an additional 33% of the Units granted on the second anniversary of the date of grant, and (c) the remaining 34% of the Units granted on the third anniversary of the date of grant. On each vesting date, for each Unit vesting on such date, the Reporting Person received one share of Mattel, Inc. Common Stock, subject to tax withholding. On April 28, 2026, the final 34% of these RSUs vested, resulting in the issuance of 13,506 shares of Mattel, Inc. Common Stock."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":13506},"source":{"system":"sec-edgar","filing":"0001661969-26-000007","document":"wk-form4_1777585044.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/63276/000166196926000007/wk-form4_1777585044.xml","form_type":"4"}},{"id":797620,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":48555,"kind":"person","name":"Anschell Jonathan","position":1,"cik":"0001661969","reported_name":"Anschell Jonathan","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP Chief Legal Officer & Sec"}}],"security":"Common Stock","published_at":"2026-04-30T21:37:26.000Z","date":"2026-04-28","kind":"tax_withholding","planned":false,"acquired":false,"shares":6872,"price":14.79,"value":101636.88,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Pursuant to the terms of the April 28, 2023 RSU grant, 6,872 shares of Mattel, Inc. Common Stock were automatically withheld at vesting to cover required tax withholding."}],"balance_after":118403,"source":{"system":"sec-edgar","filing":"0001661969-26-000007","document":"wk-form4_1777585044.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/63276/000166196926000007/wk-form4_1777585044.xml","form_type":"4"}},{"id":797619,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":48555,"kind":"person","name":"Anschell Jonathan","position":1,"cik":"0001661969","reported_name":"Anschell Jonathan","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP Chief Legal Officer & Sec"}}],"security":"Common Stock","published_at":"2026-04-30T21:37:26.000Z","date":"2026-04-28","kind":"exercise","planned":false,"acquired":true,"shares":13506,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"As reported on a Form 4 dated April 28, 2023 and filed on May 2, 2023, the Reporting Person received a grant of 39,722 Restricted Stock Units (\"RSUs\" or \"Units\") on April 28, 2023. The RSUs vested as to (a) 33% of the Units granted on the first anniversary of the date of grant, (b) an additional 33% of the Units granted on the second anniversary of the date of grant, and (c) the remaining 34% of the Units granted on the third anniversary of the date of grant. On each vesting date, for each Unit vesting on such date, the Reporting Person received one share of Mattel, Inc. Common Stock, subject to tax withholding. On April 28, 2026, the final 34% of these RSUs vested, resulting in the issuance of 13,506 shares of Mattel, Inc. Common Stock."}],"balance_after":125275,"source":{"system":"sec-edgar","filing":"0001661969-26-000007","document":"wk-form4_1777585044.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/63276/000166196926000007/wk-form4_1777585044.xml","form_type":"4"}},{"id":799695,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":50773,"kind":"person","name":"TOTZKE STEVE","position":1,"cik":"0001666142","reported_name":"TOTZKE STEVE","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Chief Comm Officer"}}],"security":"Restricted Stock Units","published_at":"2026-04-28T20:40:17.000Z","date":"2026-04-24","kind":"exercise","planned":false,"acquired":false,"shares":20100,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"As reported on a Form 4 dated April 25, 2024 and filed on April 29, 2024, the Reporting Person received a grant of 60,910 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 20,100 shares of Mattel, Inc. Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"As reported on a Form 4 dated April 25, 2024 and filed on April 29, 2024, the Reporting Person received a grant of 60,910 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 20,100 shares of Mattel, Inc. Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"As reported on a Form 4 dated April 25, 2024 and filed on April 29, 2024, the Reporting Person received a grant of 60,910 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 20,100 shares of Mattel, Inc. Common Stock."}],"balance_after":20710,"derivative":{"underlying":"Common Stock","underlying_shares":20100},"source":{"system":"sec-edgar","filing":"0001666142-26-000004","document":"wk-form4_1777408815.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/63276/000166614226000004/wk-form4_1777408815.xml","form_type":"4"}},{"id":799694,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":50773,"kind":"person","name":"TOTZKE STEVE","position":1,"cik":"0001666142","reported_name":"TOTZKE STEVE","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Chief Comm Officer"}}],"security":"Common Stock","published_at":"2026-04-28T20:40:17.000Z","date":"2026-04-24","kind":"tax_withholding","planned":false,"acquired":false,"shares":10227,"price":14.54,"value":148700.58,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Pursuant to the terms of the April 25, 2024 RSU grant, 10,227 shares of Mattel, Inc. Common Stock were automatically withheld at vesting to cover required tax withholding."}],"balance_after":187340,"source":{"system":"sec-edgar","filing":"0001666142-26-000004","document":"wk-form4_1777408815.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/63276/000166614226000004/wk-form4_1777408815.xml","form_type":"4"}},{"id":799693,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":50773,"kind":"person","name":"TOTZKE STEVE","position":1,"cik":"0001666142","reported_name":"TOTZKE STEVE","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Chief Comm Officer"}}],"security":"Common Stock","published_at":"2026-04-28T20:40:17.000Z","date":"2026-04-24","kind":"exercise","planned":false,"acquired":true,"shares":20100,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"As reported on a Form 4 dated April 25, 2024 and filed on April 29, 2024, the Reporting Person received a grant of 60,910 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 20,100 shares of Mattel, Inc. Common Stock."}],"balance_after":197567,"source":{"system":"sec-edgar","filing":"0001666142-26-000004","document":"wk-form4_1777408815.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/63276/000166614226000004/wk-form4_1777408815.xml","form_type":"4"}},{"id":799689,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":2085,"kind":"person","name":"Kreiz Ynon","position":1,"cik":"0001708842","reported_name":"Kreiz Ynon","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Restricted Stock Units","published_at":"2026-04-28T20:39:29.000Z","date":"2026-04-24","kind":"exercise","planned":false,"acquired":false,"shares":47347,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"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."}],"balance_after":48782,"derivative":{"underlying":"Common Stock","underlying_shares":47347},"source":{"system":"sec-edgar","filing":"0001708842-26-000007","document":"wk-form4_1777408766.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/63276/000170884226000007/wk-form4_1777408766.xml","form_type":"4"}},{"id":799688,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":2085,"kind":"person","name":"Kreiz Ynon","position":1,"cik":"0001708842","reported_name":"Kreiz Ynon","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Common Stock","published_at":"2026-04-28T20:39:29.000Z","date":"2026-04-24","kind":"tax_withholding","planned":false,"acquired":false,"shares":24091,"price":14.54,"value":350283.14,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"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."}],"balance_after":1817473,"source":{"system":"sec-edgar","filing":"0001708842-26-000007","document":"wk-form4_1777408766.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/63276/000170884226000007/wk-form4_1777408766.xml","form_type":"4"}},{"id":799687,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":2085,"kind":"person","name":"Kreiz Ynon","position":1,"cik":"0001708842","reported_name":"Kreiz Ynon","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman & CEO"}}],"security":"Common Stock","published_at":"2026-04-28T20:39:29.000Z","date":"2026-04-24","kind":"exercise","planned":false,"acquired":true,"shares":47347,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"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."}],"balance_after":1841564,"source":{"system":"sec-edgar","filing":"0001708842-26-000007","document":"wk-form4_1777408766.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/63276/000170884226000007/wk-form4_1777408766.xml","form_type":"4"}},{"id":799692,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":1047,"kind":"person","name":"Isaias Zanatta Roberto Jacobo","position":1,"cik":"0001767603","reported_name":"Isaias Zanatta Roberto Jacobo","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Supply Chain Offr"}}],"security":"Restricted Stock Units","published_at":"2026-04-28T20:38:58.000Z","date":"2026-04-24","kind":"exercise","planned":false,"acquired":false,"shares":13400,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"As reported on a Form 4 dated April 25, 2024 and filed on April 29, 2024, the Reporting Person received a grant of 40,606 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 13,400 shares of Mattel, Inc. Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"As reported on a Form 4 dated April 25, 2024 and filed on April 29, 2024, the Reporting Person received a grant of 40,606 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 13,400 shares of Mattel, Inc. Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"As reported on a Form 4 dated April 25, 2024 and filed on April 29, 2024, the Reporting Person received a grant of 40,606 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 13,400 shares of Mattel, Inc. Common Stock."}],"balance_after":13807,"derivative":{"underlying":"Common Stock","underlying_shares":13400},"source":{"system":"sec-edgar","filing":"0001767603-26-000004","document":"wk-form4_1777408736.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/63276/000176760326000004/wk-form4_1777408736.xml","form_type":"4"}},{"id":799691,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":1047,"kind":"person","name":"Isaias Zanatta Roberto Jacobo","position":1,"cik":"0001767603","reported_name":"Isaias Zanatta Roberto Jacobo","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Supply Chain Offr"}}],"security":"Common Stock","published_at":"2026-04-28T20:38:58.000Z","date":"2026-04-24","kind":"tax_withholding","planned":false,"acquired":false,"shares":6818,"price":14.54,"value":99133.72,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Pursuant to the terms of the April 25, 2024 RSU grant, 6,818 shares of Mattel, Inc. Common Stock were automatically withheld at vesting to cover required tax withholding."}],"balance_after":167611,"source":{"system":"sec-edgar","filing":"0001767603-26-000004","document":"wk-form4_1777408736.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/63276/000176760326000004/wk-form4_1777408736.xml","form_type":"4"}},{"id":799690,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":1047,"kind":"person","name":"Isaias Zanatta Roberto Jacobo","position":1,"cik":"0001767603","reported_name":"Isaias Zanatta Roberto Jacobo","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Supply Chain Offr"}}],"security":"Common Stock","published_at":"2026-04-28T20:38:58.000Z","date":"2026-04-24","kind":"exercise","planned":false,"acquired":true,"shares":13400,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"As reported on a Form 4 dated April 25, 2024 and filed on April 29, 2024, the Reporting Person received a grant of 40,606 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 13,400 shares of Mattel, Inc. Common Stock."}],"balance_after":174429,"source":{"system":"sec-edgar","filing":"0001767603-26-000004","document":"wk-form4_1777408736.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/63276/000176760326000004/wk-form4_1777408736.xml","form_type":"4"}},{"id":799686,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":48556,"kind":"person","name":"Hugh Yoon J.","position":1,"cik":"0001474865","reported_name":"Hugh Yoon J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP & Corporate Controller"}}],"security":"Restricted Stock Units","published_at":"2026-04-28T20:38:17.000Z","date":"2026-04-24","kind":"exercise","planned":false,"acquired":false,"shares":4169,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"As reported on a Form 4 dated April 25, 2024 and filed on April 29, 2024, the Reporting Person received a grant of 12,633 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 4,169 shares of Mattel, Inc. Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"As reported on a Form 4 dated April 25, 2024 and filed on April 29, 2024, the Reporting Person received a grant of 12,633 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 4,169 shares of Mattel, Inc. Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"As reported on a Form 4 dated April 25, 2024 and filed on April 29, 2024, the Reporting Person received a grant of 12,633 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 4,169 shares of Mattel, Inc. Common Stock."}],"balance_after":4296,"derivative":{"underlying":"Common Stock","underlying_shares":4169},"source":{"system":"sec-edgar","filing":"0001474865-26-000005","document":"wk-form4_1777408695.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/63276/000147486526000005/wk-form4_1777408695.xml","form_type":"4"}},{"id":799685,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":48556,"kind":"person","name":"Hugh Yoon J.","position":1,"cik":"0001474865","reported_name":"Hugh Yoon J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP & Corporate Controller"}}],"security":"Common Stock","published_at":"2026-04-28T20:38:17.000Z","date":"2026-04-24","kind":"tax_withholding","planned":false,"acquired":false,"shares":1496,"price":14.54,"value":21751.84,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Pursuant to the terms of the April 25, 2024 RSU grant, 1,496 shares of Mattel, Inc. Common Stock were automatically withheld at vesting to cover required tax withholding."}],"balance_after":33039,"source":{"system":"sec-edgar","filing":"0001474865-26-000005","document":"wk-form4_1777408695.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/63276/000147486526000005/wk-form4_1777408695.xml","form_type":"4"}},{"id":799684,"issuer":{"id":1046,"kind":"organization","name":"MATTEL INC /DE/","symbol":"MAT"},"owners":[{"id":48556,"kind":"person","name":"Hugh Yoon J.","position":1,"cik":"0001474865","reported_name":"Hugh Yoon J.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP & Corporate Controller"}}],"security":"Common Stock","published_at":"2026-04-28T20:38:17.000Z","date":"2026-04-24","kind":"exercise","planned":false,"acquired":true,"shares":4169,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"As reported on a Form 4 dated April 25, 2024 and filed on April 29, 2024, the Reporting Person received a grant of 12,633 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 4,169 shares of Mattel, Inc. 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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 12,507 shares of Mattel, Inc. Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"As reported on a Form 4 dated April 25, 2024 and filed on April 29, 2024, the Reporting Person received a grant of 37,899 Restricted Stock Units (\"RSUs\" or \"Units\") on April 25, 2024. 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