FRONTIER CAPITAL MANAGEMENT CO LLC

Position in MAT — Mattel Inc /De/

CIK 351173 Boston, MA

Back to MAT Full portfolio

Position in MAT

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$24,576,376

-$59,057,775 QoQ

Shares Held

1,691,423

-59.9% QoQ

Ownership

0.582%

of shares outstanding

% of Portfolio

0.25%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 71% Shared 0% None 29%

Common Shares in MAT Over Time

Shares Held

Position Value (USD)

Position in Leisure

Consumer Cyclical · as of Mar 31, 2026

FRONTIER CAPITAL MANAGEMENT CO LLC holds $87,489,876 across 3 Leisure names. MAT ranks #3 (28.1% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	PLNT	Planet Fitness, Inc.	506,609	$37,681,577
2	LTH	Life Time Group Holdings, Inc.	936,597	$25,231,923
3	MAT	Mattel Inc /De/ This page	1,691,423	$24,576,376

All Filings in MAT

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25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$24,576,376	1,691,423	-59.9%	Shares	Sole	2026-05-15
2025-12-31	$83,634,151	4,215,431	-15.5%	Shares	Sole	2026-02-17
2025-09-30	$83,937,857	4,987,395	-44.5%	Shares	Sole	2025-11-14
2025-06-30	$177,089,642	8,980,205	+0.6%	Shares	Sole	2025-08-14
2025-03-31	$173,398,935	8,924,289	+17.9%	Shares	Sole	2025-05-15
2024-12-31	$134,222,465	7,570,359	-4.2%	Shares	Sole	2025-02-14
2024-09-30	$150,523,860	7,901,515	-1.1%	Shares	Sole	2024-11-14
2024-06-30	$129,938,928	7,991,324	+20.7%	Shares	Sole	2024-08-14
2024-03-31	$131,186,614	6,622,242	+6.1%	Shares	Sole	2024-05-15
2023-12-31	$117,870,256	6,243,128	-23.8%	Shares	Sole	2024-02-14
2023-09-30	$180,584,227	8,197,196	+0.9%	Shares	Sole	2023-11-14
2023-06-30	$158,696,005	8,121,597	+10.3%	Shares	Sole	2023-08-14
2023-03-31	$135,584,274	7,364,708	-0.5%	Shares	Sole	2023-05-15
2022-12-31	$131,990,899	7,398,593	-32.8%	Shares	Sole	2023-02-14
2022-09-30	$208,651,222	11,016,432	-12.3%	Shares	Sole	2022-11-14
2022-06-30	$280,346,138	12,554,686	-15.3%	Shares	Sole	2022-07-20
2022-03-31	$329,057,585	14,815,740	-6.0%	Shares	Sole	2022-04-14
2021-12-31	$339,979,230	15,768,981	-2.0%	Shares	Sole	2022-01-19
2021-09-30	$298,603,636	16,088,558	-9.3%	Shares	Sole	2021-10-19
2021-06-30	$356,412,195	17,731,950	+6.4%	Shares	Sole	2021-08-09
2021-03-31	$332,063,272	16,669,843	+25.6%	Shares	Sole	2021-05-13
2020-12-31	$231,666,758	13,276,032	+66.3%	Shares	Sole	2021-01-19
2020-09-30	$93,389,949	7,982,047	+14.8%	Shares	Sole	2020-11-16
2020-06-30	$67,207,244	6,950,077	+44.6%	Shares	Sole	2020-07-17
2020-03-31	$42,351,114	4,807,164	—	Shares	Sole	2020-04-16
No filing history on record for this holder in this stock.