MATTEL INC (MAT) Institutional Ownership Changes & 13F Activity

MATTEL INC (MAT). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings. This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Longleaf Partners, Ariel Appreciation Fund, Sequoia Financial Advisors, Renaissance Technologies LLC, and Miller Value Partners.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2019Ariel Appreciation FundSell-909,67111,386,674$148,027
Q1 2019Parnassus Endeavor FundSell-555,10420,930,307$272,094
Q4 2018Longleaf PartnersBuy2,798,78239,847,540$398,077
Q4 2018Ariel Appreciation FundBuy935,58512,296,345$122,840
Q4 2018Dodge & Cox Stock FundSell-248,92835,371,257$353,359
Q3 2018Ariel Appreciation FundBuy176,92811,360,760$178,364
Q3 2018Longleaf PartnersBuy76,15137,048,758$581,666
Q3 2018Dodge & Cox Stock FundBuy74,10035,620,185$559,237
Q2 2018Dodge & Cox Stock FundBuy6,490,14835,546,085$583,667
Q2 2018Ariel Appreciation FundBuy1,314,29511,183,832$183,639
Q2 2018Parnassus Endeavor FundSell-314,58921,485,411$352,790
Q2 2018Longleaf PartnersSell-294,00036,972,607$607,090
Q1 2018Dodge & Cox Stock FundBuy2,988,03729,055,937$382,086
Q1 2018Longleaf PartnersSell-1,001,55137,266,607$490,056
Q1 2018Ariel Appreciation FundBuy718,4239,869,537$129,784
Q1 2018Parnassus Endeavor FundBuy408,07221,800,000$286,670
Q4 2017Longleaf PartnersBuy27,175,63938,268,158$588,564
Q4 2017Dodge & Cox Stock FundBuy26,067,90026,067,900$400,924
Q4 2017Parnassus Endeavor FundBuy5,327,56421,391,928$329,008
Q4 2017Ariel Appreciation FundBuy837,4819,151,114$140,744
Q3 2017Longleaf PartnersBuy11,092,51911,092,519$171,712
Q3 2017Parnassus Endeavor FundBuy7,719,36416,064,364$248,676
Q3 2017Ariel Appreciation FundBuy2,360,8538,313,633$128,695
Q3 2017Olstein Capital ManagementBuy425,760539,160$8,346
Q2 2017Parnassus Endeavor FundBuy8,345,0008,345,000$179,668
Q2 2017Ariel Appreciation FundBuy879,4345,952,780$128,163
Q2 2017Olstein Capital ManagementBuy113,400113,400$2,442
Q1 2017Ariel Appreciation FundBuy612,8075,073,346$129,928
Q1 2017Renaissance Technologies LLCSell-129,300568,000$14,546
Q4 2016Renaissance Technologies LLCSell-848,400697,300$19,211

Frequently asked questions about MAT activity

  • Which institutional owners are buying MAT?

    Institutional owners buying MAT include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in MAT activity?

    "Buy" means an investor increased their reported position in MAT compared to the prior reporting period. This reflects growing exposure to MATTEL INC (MAT) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in MAT increasing?

    Institutional interest in MAT can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.

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