Transaction · 0002148131-26-000006

Stanichi Roberto Seixas

Stanichi Roberto Seixas, PRES, CM, BO, reported a transaction classified as withholding at MATTEL INC DE involving 873.000000 shares for an estimated $11052.18. Reported holdings after the transaction were 46771.000000 shares. A 10b5-1 reference was not detected in the stored filing text.

withholdingSEC transaction code FPRES, CM, BO
MATMATTEL INC DE
Filing timeOct 02
Trade dateSep 30, 2026
Filing · SECView on SEC
InsiderProfile
% of reported position tradedUnavailableCalculated only for code-P purchases and code-S sales.

Row-level estimate for this security and ownership context, not the insider’s complete portfolio. Joint ownership, other transactions in the filing, amendments and footnotes can affect interpretation.

Price performance since filing

Close on the filing date, the pre-filing context, and the forward return at standard windows
Price at filing
$15.27
Pre-filing
1mo ago -1.5%1w ago -14.3%1d ago -13.4%
Returns since
7d30d90d180d1y

MAT price since this filing

30 days of pre-filing context and vertical markers at the filing date plus 7d / 30d / 90d / 180d / 1y afterwards
MAT since 2026-10-02Filed yesterday · 1 day of post-filing data
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Filing datePost-filing windows (7d, 30d, 90d, 180d, 1y)30 days of pre-filing context

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
withholding
Code F
Identifier
0002148131-26-000006
Common Stock
Transaction date
Sep 30, 2026
Filed Oct 02, 2026, 08:22 PM · 2d delay
Shares
873 sh
$12.66 per share
Estimated value
-$11.0k
Computed from shares × price
Holdings after
46.7k sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $100kLarge $1.00M
Direct Ownership
-12score
Filing-only score

-12

Compact filing score computed from stored Form 4 facts. Version v1.

Mixed or weak signal

This filing has a negative filing-only score. It may be less informative as an insider-activity signal and needs extra context.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

Pres., Chief Mktg & Brand Ofc

Officer YesDirector No10% NoOther No
Footnotes & amended
  1. F1

    As reported on a Form 3 dated July 29, 2026 and filed on August 4, 2026, the Reporting Person received a grant of 5,199 Restricted Stock Units ("RSUs" or "Units") on September 30, 2025. The RSUs vest…

  2. F2

    Pursuant to the terms of the September 30, 2025 RSU grant, 873 shares of Mattel, Inc. Common Stock were automatically withheld at vesting to cover required tax withholding.

Original filing · 0002148131-26-000006
Related transactions

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Same reporting owner
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