(MAT)

Reporting relationship: Chief Financial Officer, Director
Issuer ticker: MAT
Reported as of: 20 Oct 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 21 Oct 2026, 19:01:01 UTC
Prior SEC filing: 11 May 2026
Source filing: View source filing
Reporting owner signature: /s/ Tiffani Magri, Attorney-in-Fact for Peter H. Griffith

Filing notes and source

Key filing fact

Peter H. Griffith filed Form 4 for MATTEL INC /DE/ (MAT) on 21 Oct 2026.

Key facts

This page summarizes Peter H. Griffith's Form 4 filing for MATTEL INC /DE/ (MAT).
2 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 21 Oct 2026, 19:01.

Change

Previous filing in this sequence was filed on 11 May 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001798821 Primary reporting owner

Griffith Peter H.

Relationship: Chief Financial Officer, Director
Address: 333 CONTINENTAL BOULEVARD, EL SEGUNDO
Signature: /s/ Tiffani Magri, Attorney-in-Fact for Peter H. Griffith
Signature date: 21 Oct 2026

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

MAT transaction Derivative

Restricted Stock Units

Award

Transaction value
Shares: +58,858
Change %
Price: $0.000000^*
Shares after: 58,858
Date: 20 Oct 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 58,858
Exercise price
Footnotes: F1, F2

MAT transaction Derivative

Restricted Stock Units

Award

Transaction value
Shares: +147,145
Change %
Price: $0.000000^*
Shares after: 147,145
Date: 20 Oct 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 147,145
Exercise price
Footnotes: F1, F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

The Restricted Stock Units ("RSUs" or "Units") were granted on October 20, 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).

Footnote F2

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.