MAT — Mattel Inc

Ownership history in Diametric Capital, LP  ·  17 quarters on record

This page tracks every 13F SEC filing in which Diametric Capital, LP reported a position in Mattel Inc (MAT). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.

Peak position
2.36% (2022 Q2)
Avg. % of fund
0.92%
First filed
2021 Q2
Last filed
2025 Q3
Quarters held
17
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q3 REDUCED 29,025 -72,402 -71.4% 0.18% $488K $16.83
2025 Q2 ADDED 101,427 +50,513 +99.2% 1.07% $2.0M $19.72
2024 Q4 ADDED 50,914 +28,014 +122.3% 0.61% $903K $17.73
2024 Q3 ADDED 22,900 +7,166 +45.5% 0.22% $436K $19.05
13 older quarters hidden  —  Sign in free or upgrade to Premium to see full history
% of Fund (quarterly)    MAT price (monthly, adj. close)

Other funds also holding MAT

As of 2025 Q4 — sorted by position size

SERENITY CAPITAL MANAGEMENT PTE. LTD. 3Y 12.56% Simcoe Capital Management, LLC 3Y 7Y 9.37% EdgePoint Investment Group Inc. 3Y 7Y 7.71% SOUTHEASTERN ASSET MANAGEMENT INC/TN/ 3Y 7Y 7.57% HS Management Partners, LLC 3Y 7Y 2.89% ARIEL INVESTMENTS, LLC 3Y 7Y 2.69% OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) 3Y 7Y 2.25% Patient Capital Management, LLC 3Y 2.14% Galvin, Gaustad & Stein, LLC 3Y 1.95% FRONTIER CAPITAL MANAGEMENT CO LLC 3Y 7Y 0.89%
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