Stanichi Roberto Seixas

Reporting owner on Forms 3, 4 and 5, CIK 2148131.

Stanichi Roberto Seixas reported on 1 issuer in 1 filing, the latest a Form 4 filed 2026-10-02.

Issuers

Issuer	Roles in the latest filing	Filings	Last filed
MATTEL INC /DE/ CIK 63276	officer (Pres., Chief Mktg & Brand Ofc)	1	2026-10-02

Every row of the person's Forms 3, 4 and 5, newest first, with the price and the amount owned after the row as filed.

Security	Date	Code	Shares	Price	Owned after	Filing
MATTEL INC /DE/ Common Stock	2026-09-30	M exercised	+1,715		47,644	Form 4
MATTEL INC /DE/ Common Stock	2026-09-30	F withheld for tax	-873	$12.66	46,771	Form 4
MATTEL INC /DE/ Restricted Stock Units, derivative	2026-09-30	M exercised	-1,715	$0	3,484	Form 4

The person's Forms 3, 4 and 5, and any 13D or 13G naming it.

Filing	Subject	Filed	Accepted	Ingested
Form 4 0002148131-26-000006	MATTEL INC /DE/	2026-10-02	2026-10-02 20:22:05 UTC	2026-10-06 10:23:34 UTC