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Roberto Seixas Stanichi

CIK: 0002148131

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)1 (25.0%)

Derivative conversions

Awards (A)2 (50.0%)

Compensation grants

Other (G, F, J, C, D, …)1 (25.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

MATTEL INC /DE/ logo
MAT

MATTEL INC /DE/

Officer

Discretionary Trading P&L

Holdings

Transaction History (4 total)

  • MATTEL INC /DE/ logo
    MAT

    MATTEL INC /DE/

    Sep 30, 2026
    Exercise(M)
    Direct
    1.7K shares-
  • MATTEL INC /DE/ logo
    MAT

    MATTEL INC /DE/

    Sep 30, 2026
    Tax Payment(F)
    Direct
    873 shares at avg. $12.66$11K
  • MATTEL INC /DE/ logo
    MAT

    MATTEL INC /DE/

    Jul 31, 2026
    Award(A)

    Restricted Stock Units

    Direct
    63K shares-
  • MATTEL INC /DE/ logo
    MAT

    MATTEL INC /DE/

    Jul 31, 2026
    Award(A)

    Restricted Stock Units

    Direct
    132.5K shares-

1-4 of 4

About Stanichi Roberto Seixas

Stanichi Roberto Seixas (SEC CIK 0002148131) files insider reports with the SEC as Pres., Chief Mktg & Brand Ofc of MATTEL INC /DE/ (MAT).

Signal8 holds 3 ownership filings by Stanichi Roberto Seixas (1 Form 3, 2 Form 4), filed between Aug 4, 2026 and Oct 2, 2026. Those filings report 4 transactions, from Jul 31, 2026 to Sep 30, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Stanichi Roberto Seixas's filings is in EL SEGUNDO, CA.

Recent filings by Stanichi Roberto Seixas

  • Sep 30, 2026: Option exercise of MAT shares (Form 4, code M).
  • Sep 30, 2026: Tax withholding of MAT shares (Form 4, code F).
  • Jul 31, 2026: Grants or awards of MAT derivative securities (2 lines, Form 4, code A).

Other insiders filing for MATTEL INC /DE/ (MAT)

How to read Form 4 transaction codes