Mattel MAT Insider Ownership

Updated Oct 5, 2026

Over the trailing 12 months, MAT insiders bought $1.01 million worth of shares (65K shares) and sold $586,909 worth (39.08K shares) in open-market trades.

• Among MAT insiders, Ynon Kreiz (Chairman & CEO) bought the most stock on the open market in the past 12 months: $1.01 million (65K shares), most recently on February 12, 2026.
• Meanwhile, the largest open-market sales of MAT in the past 12 months were by Zanatta Roberto Jacobo Isaias (EVP & Chief Supply Chain Offr), totaling $586,909 (39.08K shares), most recently on August 31, 2026.
• Outside the open market, Mattel insiders received 673.34K shares in stock awards, acquired 361.23K shares through option exercises and conversions and gave up 483.99K shares to cover taxes or exercise prices over the past 12 months.
• Business Quant data shows Mattel insiders holding 2.96Mn shares in total in their latest Form 4 filings, or 1.02% of the 288.93Mn shares outstanding; that total is up 0.26% from 2.95Mn shares at the end of Q2 2026 and up 19.47% from 2.47Mn shares at the end of Q3 2025.
• Mattel insiders hold 2.94Mn shares directly (99.35% of their total) and 19.1K shares (0.65%) indirectly, through entities such as trusts and partnerships.
• Business Quant counts 15 insiders with holdings in Mattel stock, among the officers, directors and 10% owners who have filed a Form 4 in the past two years.
• Mattel's top three insider holders by shares held are Ynon Kreiz (Chairman & CEO, 1.84Mn shares), Anthony Disilvestro (Chief Financial Officer, 229.46K shares) and Steve Totzke (President, Chief Comm Officer, 214.09K shares).
• Ynon Kreiz alone accounts for 62.34% of the shares held by Mattel insiders.
• In the last 12 months, 47 Form 4 filings with transactions in MAT stock came from 17 insiders.
• The insider data for MAT reflects Form 4 filings through October 2, 2026.