Mattel, Inc. (MAT) Insider Trading
Over the last 3 months, MAT insiders made 0 open-market buys and 1 sale, a net sale of -$587K (SEC Form 4). Over the last 6 months, 242 institutions increased and 317 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
1
Net (3m)
-$586.9K
Insider trades by month Buys Sells
May
Feb
Sep
Context3-month price +2.2%Institutions mixed (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Sep 2, 2026 | Isaias Zanatta Roberto Jacoboofficer: EVP & Chief Supply Chain Offr | Sell | 39,083 | $15.02 |
| Aug 4, 2026 | Stanichi Roberto Seixasofficer: Pres., Chief Mktg & Brand Ofc | Grant | 132,538 | — |
| Aug 4, 2026 | Stanichi Roberto Seixasofficer: Pres., Chief Mktg & Brand Ofc | Grant | 62,956 | — |
| Jun 2, 2026 | Ancira Karenofficer: EVP, Chief People Officer | Tax | 5,991 | $14.94 |
| Jun 2, 2026 | Ancira Karenofficer: EVP, Chief People Officer | Option | 16,695 | — |
| Jun 2, 2026 | Ruh Paulofficer: Chief Financial Officer | Option | 66,209 | — |
| Jun 2, 2026 | Ruh Paulofficer: Chief Financial Officer | Tax | 31,360 | $14.94 |
| Jun 2, 2026 | Ruh Paulofficer: Chief Financial Officer | Option | 24,610 | — |
| Jun 2, 2026 | Ruh Paulofficer: Chief Financial Officer | Tax | 8,671 | $14.94 |
| Jun 1, 2026 | Lynch Rogerdirector | Grant | 11,753 | — |
| Jun 1, 2026 | NG DOMINICdirector | Grant | 11,753 | — |
| Jun 1, 2026 | Laursen Soren Tdirector | Grant | 11,753 | — |
| Jun 1, 2026 | GENACHOWSKI JULIUSdirector | Grant | 11,753 | — |
| Jun 1, 2026 | Hertz Noreenadirector | Grant | 11,753 | — |
| Jun 1, 2026 | FERGUSON DIANA SUEdirector | Grant | 11,753 | — |
| Jun 1, 2026 | Cisneros Adrianadirector | Grant | 11,753 | — |
| Jun 1, 2026 | Olian Judy D.director | Grant | 11,753 | — |
| Jun 1, 2026 | OSTROFF DAWNdirector | Grant | 11,753 | — |
| May 19, 2026 | Hertz Noreenadirector | Tax | 1,719 | $15.15 |
| May 19, 2026 | Hertz Noreenadirector | Option | 8,594 | — |
| May 19, 2026 | Cisneros Adrianadirector | Option | 8,594 | — |
| May 19, 2026 | Laursen Soren Tdirector | Option | 8,594 | — |
| May 19, 2026 | Olian Judy D.director | Option | 8,594 | — |
| May 19, 2026 | Lynch Rogerdirector | Option | 8,594 | — |
| May 19, 2026 | FERGUSON DIANA SUEdirector | Option | 8,594 | — |
| May 11, 2026 | Hugh Yoon J.officer: SVP & Corporate Controller | Tax | 1,585 | $15.00 |
| May 11, 2026 | Ancira Karenofficer: EVP, Chief People Officer | Tax | 2,718 | $15.00 |
| May 11, 2026 | Kreiz Ynondirector, officer: Chairman & CEO | Option | 51,222 | — |
| May 11, 2026 | Anschell Jonathanofficer: EVP Chief Legal Officer & Sec | Option | 14,673 | — |
| May 11, 2026 | Ancira Karenofficer: EVP, Chief People Officer | Option | 7,573 | — |
Source: MAT SEC Form 4 filings, latest Sep 2, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their MAT positions over the last 6 months (SEC Form 13F).
Increased
242
New positions
117
Reduced
317
Sold out
73
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| EdgePoint Investment Group Inc. | Increased | 51.0M | Aug 14, 2026 |
| EDGEPOINT INVESTMENT GROUP INC. | Increased | 49.1M | May 15, 2026 |
| PRIMECAP MANAGEMENT CO/CA/ | Reduced | 29.7M | May 11, 2026 |
| PRIMECAP MANAGEMENT CO/CA/ | Reduced | 29.5M | Aug 14, 2026 |
| BLACKROCK, INC. | Increased | 27.3M | May 13, 2026 |
| BlackRock, Inc. | Reduced | 26.2M | Aug 7, 2026 |
| ARIEL INVESTMENTS, LLC | Increased | 15.4M | Aug 14, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 13.7M | May 15, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 13.6M | May 8, 2026 |
| ARIEL INVESTMENTS, LLC | Increased | 13.6M | May 14, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Reduced | 13.2M | Aug 13, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Reduced | 13.1M | Aug 13, 2026 |
| SOUTHEASTERN ASSET MANAGEMENT INC/TN/ | Increased | 12.8M | May 15, 2026 |
| DIMENSIONAL FUND ADVISORS LP | Increased | 12.6M | Aug 11, 2026 |
| SOUTHEASTERN ASSET MANAGEMENT INC/TN/ | Reduced | 12.3M | Aug 14, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.