Mattel insider files to sell 25,462 shares ($510k) – Form 144

Mattel, Inc. (MAT) — Form 144 filing: Individual filer Anthony Disilvestro has notified the SEC of an intent to sell 25,462 Mattel common shares through Fidelity Brokerage Services on or about 22 Jul 2025.

Rhea-AI Filing Summary

Mattel, Inc. (MAT) — Form 144 filing: Individual filer Anthony Disilvestro has notified the SEC of an intent to sell 25,462 Mattel common shares through Fidelity Brokerage Services on or about 22 Jul 2025. Using the stated aggregate market value of $510,362.80, the indicated reference price is roughly $20.05 per share. Mattel reports 322.9 million shares outstanding, so the proposed sale represents approximately 0.008 % of shares outstanding.

The shares derive from an employee stock option granted on 28 Apr 2023 and exercised for cash on the same expected sale date (22 Jul 2025). The filing also discloses that the same seller disposed of 362,704 shares on 16 May 2025, generating $7,288,806.96 in gross proceeds. No relationship to the issuer is specified in the filing, and no adverse information about the company is affirmed by the signer.

Quantitatively the proposed transaction is immaterial to Mattel’s capital structure; however, it flags continued insider‐level selling within a three-month window, information some investors monitor for sentiment cues.

Insights

Corporate Governance Analyst

TL;DR: Small-scale Form 144 shows ongoing insider selling but no material impact on Mattel’s capitalization.

The notice details a forthcoming disposal of 25,462 shares (~$0.5 M) following a much larger 362,704-share sale two months earlier. Combined, the 388 k shares equal roughly 0.12 % of Mattel’s outstanding stock, a level unlikely to influence liquidity or valuation. The filing lacks context on the seller’s role, so investors cannot infer strategic intent. Still, back-to-back sales may be interpreted as modestly negative sentiment from a well-informed holder. Absent earnings or operational disclosures, the event is neutral-to-slightly-negative in governance optics but not financially material.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many Mattel (MAT) shares are being sold under this Form 144?

The filer plans to sell 25,462 common shares.

What is the estimated value of the proposed Mattel share sale?

The aggregate market value is $510,362.80.

Who is the seller in Mattel’s July 2025 Form 144?

The filing lists Anthony Disilvestro; no relationship to the issuer is specified.

Have there been recent prior sales by the same filer?

Yes, 362,704 shares were sold on 16 May 2025 for $7.29 million.

What percentage of Mattel’s outstanding shares does the new sale represent?

Approximately 0.008 % of the 322.9 million shares outstanding.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 07/22/2025 - 01:02 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001285140
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	MATTEL INC /DE/
SEC File Number	001-05647
Address of Issuer	333 CONTINENTAL BLVD EL SEGUNDO CALIFORNIA 90245
Phone	3102522000
Name of Person for Whose Account the Securities are To Be Sold	DISILVESTRO ANTHONY
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	25462	510362.80	322900000	07/22/2025	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	07/22/2025	Option Granted - 04/28/2023	Issuer			25462	07/22/2025	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Anthony Disilvestro 333 Continental Blvd. El Segundo CA 90245-5012	Common	05/16/2025	362704	7288806.96

144: Remarks and Signature

Remarks
Date of Notice	07/22/2025
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Daniel Tucci, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Anthony Disilvestro
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)