Mueller Industries Form 144 details planned 4,234-share Rule 144 sale

Rhea-AI Filing Summary

Mueller Industries Inc. had an affiliate file a Form 144 notice to sell up to 4,234 shares of its common stock through Fidelity Brokerage Services on the NYSE, with an approximate sale date of 11/25/2025. The planned sale has an indicated aggregate market value of $458,923.26.

The shares relate to a recent stock option exercise for 4,231 common shares on 11/19/2025, received as compensation from Mueller Industries Inc. As context, the company had 111,013,631 common shares outstanding at the time referenced, which is a baseline figure rather than the amount being sold.

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

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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 245 Summer Street Boston MA 02110	4234	458923.26	111013631	11/25/2025	NYSE

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	11/19/2025	Stock options Exercise	Mueller Insutries Inc			4231	11/19/2025	Compensation

* 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

Nothing to Report

144: Remarks and Signature

Remarks

Date of Notice

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does the Form 144 filing for Mueller Industries (MLI) disclose?

The Form 144 filing discloses an affiliate’s intent to sell up to 4,234 shares of Mueller Industries Inc. common stock on the NYSE under Rule 144.

What is the value of the Mueller Industries (MLI) shares to be sold under this Form 144?

The notice lists an aggregate market value of approximately $458,923.26 for the 4,234 common shares that may be sold.

How were the Mueller Industries (MLI) shares being sold acquired?

The 4,231 common shares were acquired on 11/19/2025 via a stock option exercise from Mueller Industries Inc. as compensation.

When is the planned sale date for the Mueller Industries (MLI) Form 144 shares?

The filing states an approximate date of sale of 11/25/2025 for the common shares to be sold on the NYSE.

How many Mueller Industries (MLI) shares are outstanding compared with the Form 144 sale?

The filing indicates there were 111,013,631 common shares outstanding of Mueller Industries Inc. at the referenced time, compared with 4,234 shares in the planned sale.

Which broker is handling the Form 144 sale for Mueller Industries (MLI) shares?

The notice names Fidelity Brokerage Services LLC, located at 245 Summer Street, Boston, MA 02110, as the broker for the planned NYSE sale.