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SIMPLEX TRADING, LLC

Position in MAT — Mattel Inc /De/

CIK 1488542 CHICAGO, IL

Position in MAT

as of Jun 30, 2026 · filed Aug 12, 2026
Position Value
$247,646
-$103,462 QoQ
Shares Held
17,842
+0.8% QoQ
Ownership
0.006%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#219
of 394 holders
Holding Since
Mar 2020
22 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in MAT Over Time

Shares Held

Position Value (USD)

Position in Leisure

Consumer Cyclical · as of Jun 30, 2026

SIMPLEX TRADING, LLC holds $5,131,009 across 13 Leisure names. MAT ranks #5 (4.8% of the industry book) .

# Ticker Company Shares Value (USD) Open
5 MAT
Mattel Inc /De/
This page
17,842 $247,646

All Filings in MAT

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22 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $247,646 17,842
2025-12-31 $351,108 17,697
2025-09-30 $918,682 54,586
2025-06-30 $77,105 3,910
2024-12-31 $251,127 14,164
2024-09-30 $337,851 17,735
2024-03-31 $1,484,977 74,961
2023-12-31 $955,592 50,614
2023-09-30 $534,381 24,257
2023-06-30 $1,593,350 81,543
2023-03-31 $1,512,160 82,138
2022-12-31 $979,897 54,927
2022-09-30 $407,210 21,500
2022-03-31 $424,632 19,119
2021-12-31 $950,860 44,103
2021-09-30 $761,461 41,027
2021-06-30 $840,722 41,827
2021-03-31 $608,277 30,536
2020-12-31 $452,565 25,935
2020-09-30 $1,547,266 132,245
2020-06-30 $815,761 84,360
2020-03-31 $1,402,578 159,203