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Mattel Inc

MAT
Exchange
Nasdaq
Industry
Dolls & Stuffed Toys
SEC CIK
0000063276

In the last 90 days, Mattel Inc insiders filed 0 open-market purchases and 1 sale; 404 institutions reported holding it in 13F filings for Q2 2026, worth $4.23B in total; Southeastern Asset Management (Longleaf) is the only superinvestor holding it.

Holders of 5% or more of MAT

Holders whose latest Schedule 13D or 13G filing reports 5% or more of Mattel Inc, largest stake first. The change is against the holder's previous filing.

Holders of 5% or more of MAT
HolderLatest formStakeChangeFirst filedLatest filingFiling
EdgePoint Investment Group Inc.13D17.68%50.5M shares+0.11 ppfrom 17.57%Feb 12, 202113 filingsOct 22, 2026SEC
Primecap Management Co13G/A10.29%33.2M shares–Feb 12, 20215 filingsAug 14, 2025SEC
Ariel Investments, LLC13G5.30%15.4M shares–Feb 14, 20223 filingsAug 14, 2026SEC
Vanguard Capital Management LLC13G5.29%16.0M sharesNewApr 30, 20261 filingApr 30, 2026SEC

Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.

13D and 13G filings

44 Schedule 13D and 13G filings on Mattel Inc, newest first, including old-format filings without a stake.

Schedule 13D and 13G filings on MAT
Filed (ET)FilerFormStakeChangeEvent dateFiling
Oct 22, 20267:00 AM ETEdgePoint Investment Group Inc.13D17.68%50.5M shares+0.11 ppfrom 17.57%Oct 21, 2026SEC
Aug 14, 20269:58 AM ETAriel Investments, LLC13G5.30%15.4M shares–Jun 30, 2026SEC
Aug 14, 20268:39 AM ETEdgePoint Investment Group Inc.13G/A17.57%51.0M shares+1.31 ppfrom 16.26%Jun 30, 2026SEC
May 15, 20264:10 PM ETEdgePoint Investment Group Inc.13G/A16.26%49.1M shares+1.03 ppfrom 15.23%Mar 31, 2026SEC
Apr 30, 202611:47 AM ETVanguard Capital Management LLC13G5.29%16.0M sharesNewMar 31, 2026SEC
Mar 27, 202610:32 AM ETVanguard Group Inc13G/A0.00%0 shares–Below 5%Mar 13, 2026SEC
Feb 17, 20264:20 PM ETEdgePoint Investment Group Inc.13G/A15.23%47.3M shares+1.37 ppfrom 13.86%Dec 31, 2025SEC
Nov 14, 202510:28 AM ETEdgePoint Investment Group Inc.13G/A13.86%44.7M shares+1.22 ppfrom 12.64%Sep 30, 2025SEC
Aug 14, 20254:56 PM ETEdgePoint Investment Group Inc.13G/A12.64%40.8M shares+1.69 ppfrom 10.95%Jun 30, 2025SEC
Aug 14, 20251:06 PM ETPrimecap Management Co13G/A10.29%33.2M shares–Jun 30, 2025SEC
May 15, 20254:23 PM ETEdgePoint Investment Group Inc.13G/A10.95%36.2M shares−2.75 ppfrom 13.70%Mar 31, 2025SEC
Feb 14, 20252:59 PM ETCapital International Investors13G/A0.90%3.19M shares–Below 5%Dec 31, 2024SEC
Feb 14, 202512:40 PM ETEdgePoint Investment Group Inc.13G/A13.70%46.2M shares–Dec 31, 2024SEC
Nov 14, 2024EdgePoint Investment Group Inc.13G/AOld format–––SEC
Jun 10, 2024Vanguard Group Inc13G/AOld format–––SEC
Feb 14, 2024EdgePoint Investment Group Inc.13G/AOld format–––SEC
Feb 13, 2024Vanguard Group Inc13G/AOld format–––SEC
Feb 12, 2024Primecap Management Co13G/AOld format–––SEC
Feb 9, 2024Capital International Investors13GOld format–New–SEC
Jan 25, 20241:48 PM ETBlackRock Inc.13G/AOld format–––SEC
Feb 14, 2023Ariel Investments, LLC13G/AOld format–––SEC
Feb 13, 2023EdgePoint Investment Group Inc.13G/AOld format–––SEC
Feb 13, 2023Capital Research Global Investors13G/AOld format–––SEC
Feb 9, 2023Vanguard Group Inc13G/AOld format–––SEC
Feb 9, 2023Primecap Management Co13G/AOld format–––SEC
Jan 25, 202310:36 AM ETBlackRock Inc.13G/AOld format–––SEC
Mar 10, 2022Southeastern Asset Management IncSuperinvestorSoutheastern Asset Management (Longleaf)13G/AOld format–––SEC
Feb 14, 2022Ariel Investments, LLC13GOld format–New–SEC
Feb 14, 2022Southeastern Asset Management IncSuperinvestorSoutheastern Asset Management (Longleaf)13GOld format–––SEC
Feb 11, 2022EdgePoint Investment Group Inc.13G/AOld format–––SEC
Feb 11, 2022Capital Research Global Investors13G/AOld format–––SEC
Feb 10, 2022Vanguard Group Inc13G/AOld format–––SEC
Feb 10, 2022Primecap Management Co13G/AOld format–––SEC
Jan 31, 20225:49 PM ETBlackRock Inc.13G/AOld format–––SEC
Dec 10, 202110:05 AM ETBlackRock Inc.13G/AOld format–––SEC
Feb 16, 2021Capital Research Global Investors13GOld format–New–SEC
Feb 12, 2021EdgePoint Investment Group Inc.13G/AOld format–––SEC
Feb 12, 2021Primecap Management Co13G/AOld format–––SEC
Feb 11, 2021Dodge & Cox13G/AOld format–––SEC
Feb 10, 2021Vanguard Group Inc13G/AOld format–––SEC
Feb 10, 2021Southeastern Asset Management IncSuperinvestorSoutheastern Asset Management (Longleaf)13G/AOld format–––SEC
Feb 10, 2021Southeastern Asset Management IncSuperinvestorSoutheastern Asset Management (Longleaf)13G/AOld format–––SEC
Feb 1, 2021Franklin Resources Inc13G/AOld format–––SEC
Jan 29, 20215:23 PM ETBlackRock Inc.13G/AOld format–––SEC

Form 144: proposed insider sales

24 notices from officers, directors and other affiliates planning to sell Mattel Inc shares, newest first.

Form 144 notices for MAT
Filed (ET)SellerShares to sellMarket valuePlanned saleBrokerFiling
Aug 31, 20264:03 PM ETIsaias Zanatta Roberto JacoboOfficer39.1K$586.9KAug 31, 2026Fidelity Brokerage Services LLCSEC
May 26, 20264:52 PM ETTotzke SteveFormer officer13.8K$208.6KMay 26, 2026Fidelity Brokerage Services LLCSEC
May 6, 202610:27 AM ETTotzke SteveFormer officer93.1K$1.40MMay 6, 2026Fidelity Brokerage Services LLCSEC
May 5, 20264:57 PM ETTotzke SteveFormer officer101.9K$1.51MMay 5, 2026Fidelity Brokerage Services LLCSEC
Jul 22, 20251:02 PM ETDisilvestro AnthonyOfficer25.5K$510.4KJul 22, 2025Fidelity Brokerage Services LLCSEC
May 16, 20252:47 PM ETDisilvestro AnthonyOfficer362.7K$7.29MMay 16, 2025Fidelity Brokerage Services LLCSEC
Jul 8, 20244:17 PM ETMichael J DolanFormer director64.8K$1.05MJul 8, 2024UBS Financial Services IncSEC
Jul 3, 202411:59 AM ETDolan Michael JFormer director80.3K$1.30MJul 3, 2024Fidelity Brokerage Services LLCSEC
May 13, 20241:03 PM ETTotzke SteveOfficer45.2K$854.6KMay 13, 2024Fidelity Brokerage Services LLCSEC
May 10, 20245:43 PM ETTotzke SteveOfficer4.90K$92.6KMay 10, 2024Fidelity Brokerage Services LLCSEC
May 9, 20245:10 PM ETTotzke SteveOfficer23.7K$447.0KMay 9, 2024Fidelity Brokerage Services LLCSEC
May 7, 20242:21 PM ETIsaias Zanatta Roberto JacoboOfficer21.7K$407.8KMay 7, 2024Fidelity Brokerage Services LLCSEC
Apr 8, 20241:17 PM ETBradley Richard ToddDirector23.0K$445.9KApr 8, 2024Fidelity Brokerage Services LLCSEC
Feb 28, 202410:52 AM ETThompson Amanda JOfficer257.5K$5.05MFeb 28, 2024Fidelity Brokerage Services LLCSEC
Feb 13, 20242:16 PM ETLewnes AnnFormer director51.9K$972.1KFeb 13, 2024Fidelity Brokerage Services LLCSEC
Aug 9, 202310:17 AM ETBradley Richard ToddDirector12.6K$269.3KAug 9, 2023Fidelity Brokerage Services LLCSEC
Aug 7, 20232:36 PM ETHugh Yoon J.Officer7.61K$161.7KAug 7, 2023Fidelity Brokerage Services LLCSEC
Aug 4, 20233:43 PM ETIsaias Zanatta Roberto JacoboOfficer25.0K$509.1KAug 4, 2023Fidelity Brokerage Services LLCSEC
Aug 3, 202311:56 AM ETHugh Yoon J.Officer9.79K$208.1KAug 3, 2023Fidelity Brokerage Services LLCSEC
Aug 1, 20235:41 PM ETHugh Yoon J.Officer16.1K$341.2KAug 1, 2023Fidelity Brokerage Services LLCSEC
Jul 31, 20235:00 PM ETThompson Amanda JOfficer102.6K$2.18MJul 31, 2023Fidelity Brokerage Services LLCSEC
Jul 31, 20234:32 PM ETTotzke SteveOfficer47.0K$998.7KJul 31, 2023Fidelity Brokerage Services LLCSEC
Jul 31, 20234:26 PM ETHugh Yoon J.Officer38.7K$827.6KJul 31, 2023Fidelity Brokerage Services LLCSEC
Jul 31, 20232:59 PM ETAnschell JonathanOfficer29.1K$618.4KJul 31, 2023Fidelity Brokerage Services LLCSEC