MATTEL INC /DE/

Q: Jun 30 2026

Q: Mar 31 2026

FY: Dec 31 2025

Q: Sep 30 2025

Q: Jun 30 2025

Q: Mar 31 2025

FY: Dec 31 2024

Q: Sep 30 2024

Q: Jun 30 2024

Q: Mar 31 2024

FY: Dec 31 2023

FY: Dec 31 2023

Q: Sep 30 2023

Q: Jun 30 2023

Q: Mar 31 2023

FY: Dec 31 2022

Q: Sep 30 2022

Q: Jun 30 2022

Q: Mar 31 2022

FY: Dec 31 2021

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

Results of Operations and Financial Condition

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

Results of Operations and Financial Condition

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

Results of Operations and Financial Condition

Entry into a Material Definitive Agreement

Entry into a Material Definitive Agreement

Results of Operations and Financial Condition

Results of Operations and Financial Condition

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

Results of Operations and Financial Condition

Results of Operations and Financial Condition

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

Results of Operations and Financial Condition

5.02,9.01

2.02,9.01

1.01,1.02,2.03,9.01

Prospectus Supplement for Delayed or Continuous Offering

Free Writing Prospectus

Prospectus Supplement for Delayed or Continuous Offering

Automatic Shelf Registration

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Automatic Shelf Registration

Prospectus Supplement for Delayed or Continuous Offering

Free Writing Prospectus

Prospectus Supplement for Primary Offering

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Prospectus Supplement for Delayed or Continuous Offering

Free Writing Prospectus

Prospectus Supplement for Primary Offering

Automatic Shelf Registration

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Prospectus Supplement for Delayed or Continuous Offering

Shareholder Letter

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Shareholder Letter

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Preliminary Proxy Statement

Required Information in Proxy Statement

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Stanichi Roberto Seixas

Isaias Zanatta Roberto Jacobo

Isaias Zanatta Roberto Jacobo

ARIEL INVESTMENTS, LLC

EdgePoint Investment Group Inc.

Stanichi Roberto Seixas

Stanichi Roberto Seixas

Ruh Paul

Ancira Karen

Hertz Noreena

NG DOMINIC

OSTROFF DAWN

FERGUSON DIANA SUE

Lynch Roger

Olian Judy D.

Cisneros Adriana

Laursen Soren T

GENACHOWSKI JULIUS

TOTZKE STEVE

FERGUSON DIANA SUE

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

Specialized Disclosure Report

Annual Report Scanned (Paper)

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

Specialized Disclosure Report

Annual Report Scanned (Paper)

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

Specialized Disclosure Report

Annual Report Scanned (Paper)

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

Specialized Disclosure Report

Annual Report Scanned (Paper)

Letter from the SEC

Correspondence with the SEC

Correspondence with the SEC

Letter from the SEC

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

Specialized Disclosure Report

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

Specialized Disclosure Report