Alyeska Investment Group, L.P.

Position in MAT — Mattel Inc /De/

CIK 1453072 CHICAGO, IL

Position in MAT

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

Position Value

$66,964,105

-$1,391,837 QoQ

Shares Held

4,608,679

+33.8% QoQ

Ownership

1.59%

of shares outstanding

% of Portfolio

0.20%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Sep 2021

17 quarters on record

Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Consumer Cyclical · as of Mar 31, 2026

Alyeska Investment Group, L.P. holds $129,711,833 across 3 Leisure names. MAT ranks #1 (51.6% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	MAT	Mattel Inc /De/ This page	4,608,679	$66,964,105
2	PTON	Peloton Interactive, Inc.	12,123,812	$52,011,153
3	HAS	Hasbro, Inc.	114,707	$10,736,575

17 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$66,964,105	4,608,679	+33.8%	Shares	Sole	2026-05-15
2025-12-31	$68,355,942	3,445,360	+274.0%	Shares	Sole	2026-02-13
2025-09-30	$15,504,418	921,237	-51.7%	Shares	Sole	2025-11-17
2025-06-30	$37,584,426	1,905,904	+516.9%	Shares	Sole	2025-08-14
2024-09-30	$5,885,688	308,960	-73.9%	Shares	Sole	2024-11-14
2024-06-30	$19,255,758	1,184,241	-11.7%	Shares	Sole	2024-08-14
2024-03-31	$26,578,205	1,341,656	+12.4%	Shares	Sole	2024-05-15
2023-12-31	$22,533,638	1,193,519	-77.3%	Shares	Sole	2024-02-14
2023-09-30	$115,948,538	5,263,211	-17.5%	Shares	Sole	2023-11-14
2023-06-30	$124,605,778	6,376,959	+54.3%	Shares	Sole	2023-08-14
2023-03-31	$76,095,212	4,133,363	+223.6%	Shares	Sole	2023-05-15
2022-12-31	$22,787,799	1,277,343	-16.3%	Shares	Sole	2023-02-14
2022-09-30	$28,917,989	1,526,821	-50.4%	Shares	Sole	2022-11-14
2022-06-30	$68,723,433	3,077,628	+61.3%	Shares	Sole	2022-08-15
2022-03-31	$42,370,572	1,907,725	+140.9%	Shares	Sole	2022-05-17
2021-12-31	$17,072,458	791,858	+130.8%	Shares	Sole	2022-02-14
2021-09-30	$6,367,713	343,088	—	Shares	Sole	2021-11-15
No filing history on record for this holder in this stock.