(MAT)

Reporting relationship: Director
Issuer ticker: MAT
Reported as of: 15 May 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 19 May 2026, 17:27:48 UTC
Prior SEC filing: 31 Mar 2026
Next SEC filing: 01 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ Tiffani Magri, Attorney-in-Fact for Noreena Hertz

Key filing fact

Noreena Hertz filed Form 4 for MATTEL INC /DE/ (MAT) on 19 May 2026.

Key facts

This page summarizes Noreena Hertz's Form 4 filing for MATTEL INC /DE/ (MAT).
3 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 19 May 2026, 17:27.

Change

Previous filing in this sequence was filed on 31 Mar 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 0001807354 Primary reporting owner

Hertz Noreena

Relationship: Director
Address: 333 CONTINENTAL BOULEVARD, EL SEGUNDO
Signature: /s/ Tiffani Magri, Attorney-in-Fact for Noreena Hertz
Signature date: 19 May 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

MAT transaction

Common Stock

Options Exercise

Transaction value
Shares: +8,594
Change %: +487%
Price
Shares after: 10,360
Date: 15 May 2026
Ownership: Direct
Footnotes: F1

MAT transaction

Common Stock

Tax liability

Transaction value
Shares: -1,719
Change %: -17%
Price: $15.15^*
Shares after: 8,641
Date: 15 May 2026
Ownership: Direct
Footnotes: F2

Reported derivative securities

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

MAT transaction Derivative

Restricted Stock Units

Options Exercise

Transaction value
Shares: -8,594
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 15 May 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 8,594
Exercise price
Footnotes: F1

^* 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

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.

Footnote F2

Pursuant to the terms of the May 15, 2023 RSU grant, 1,719 shares of Mattel, Inc. Common Stock were automatically withheld at vesting to cover required tax withholding.