Form 4 for MAT MATTEL INC /DE/

Accepted 2026-03-31 00:00:00 ET · period of report 2026-03-27 · accession 0001807354-26-000003 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X	Filed	Traded	Ticker	Insider	Title	Type	Price	Qty	Owned	ΔOwn	Value
D	2026-03-31	2026-03-27	MAT	Hertz Noreena	Dir	M - OptEx	—	+2,208	2,208	New	—
D	2026-03-31	2026-03-27	MAT	Hertz Noreena	Dir	F - Tax	$14.30	-442	1,766	-20%	-$6,321
D	2026-03-31	2026-03-27	MAT	Hertz Noreena	Dir	M - OptEx	$0.00	-2,208	0	-100%	$0

Purchase Sale Sale after option exercise All abbreviations

#	Table	Security	Date	Code	A/D	Shares	Price	Owned after	Own	Exercise / expiry	Underlying	Footnotes
1	Common	Common Stock	2026-03-27	M	A	2,208	—	2,208	D	—	—	(F1) As reported on a Form 4 dated March 29, 2023 and filed on March 31, 2023, the Reporting Person received a grant of 2,208 Restricted Stock Units ("RSUs") on March 29, 2023. The RSUs were fully vested on the grant date and are settled on the third anniversary of the grant date. On March 27, 2026, 100% of these RSUs were settled, resulting in the issuance of 2,208 shares of Mattel, Inc. Common Stock.
2	Common	Common Stock	2026-03-27	F	D	442	$14.30	1,766	D	—	—	(F2) Pursuant to the terms of the March 29, 2023 RSU grant, 442 shares of Mattel, Inc. Common Stock were automatically withheld at vesting to cover required tax withholding.
3	Derivative	Restricted Stock Units	2026-03-27	M	D	2,208	$0.00	0	D	— · — to —	2,208 Common Stock	(F1) As reported on a Form 4 dated March 29, 2023 and filed on March 31, 2023, the Reporting Person received a grant of 2,208 Restricted Stock Units ("RSUs") on March 29, 2023. The RSUs were fully vested on the grant date and are settled on the third anniversary of the grant date. On March 27, 2026, 100% of these RSUs were settled, resulting in the issuance of 2,208 shares of Mattel, Inc. Common Stock.