[Form 4] Mueller Industries, Inc. Insider Trading Activity

Rhea-AI Filing Summary

John B. Hansen, a director of Mueller Industries (MLI), reported two sales of common stock on 08/12/2025, each of 1,000 shares, at prices of $91.975 and $91.94. After these transactions he reported 92,664 shares held directly and 15,000 shares held indirectly by a trust for which his wife and children are beneficiaries. The filing is a routine Section 16 disclosure of insider sales and beneficial ownership.

Positive

• Transparent disclosure of insider transactions and beneficial ownership details, including indirect trust holdings
• Compliance with Section 16 reporting requirements is evident from the Form 4 content

Negative

• Insider disposed of a total of 2,000 shares (two sales of 1,000 shares each)
• Direct holdings reduced to 92,664 shares following the reported transactions

Insights

Securities Analyst

TL;DR: Routine insider sales disclosed; total of 2,000 shares sold at roughly $91.94–$91.98, modest in isolation.

The Form 4 shows two contemporaneous sales by Director John B. Hansen totaling 2,000 shares executed on 08/12/2025 at reported prices of $91.975 and $91.94. Post-transaction holdings are reported as 92,664 shares direct and 15,000 shares indirect via a family trust. From a disclosure standpoint, the filing meets Section 16 reporting requirements; the amounts reported are quantitative facts in the record.

Corporate Governance Expert

TL;DR: Compliance-focused disclosure with clear indirect ownership noted; not a material corporate governance event.

The filing identifies the reporting person as a director and documents both direct and indirect beneficial ownership, explicitly noting the indirect stake is held by a trust benefiting his wife and children. This clarity supports transparency around related-party ownership. The transactions are sales rather than derivative activity, and the report contains the key ownership figures required for investor oversight.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

HANSEN JOHN B

(Last) (First) (Middle)

6901 MURRAY AVE, UNIT 106

(Street)

CINCINNATI OH 45227

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
MUELLER INDUSTRIES INC [ MLI ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
08/12/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	08/12/2025		S		1,000	D	$91.975	92,664	D
Common Stock	08/12/2025		S		1,000	D	$91.94	15,000	I	by a trust where his wife and children serve as beneficiaries

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

Remarks:

	Anthony J. Steinriede, Attorney-in-Fact	08/12/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider activity did Mueller Industries (MLI) report?

Director John B. Hansen reported two sales of common stock on 08/12/2025, each of 1,000 shares.

At what prices were the MLI shares sold by the director?

The reported sale prices were $91.975 and $91.94 per share.

How many MLI shares does John B. Hansen own after these transactions?

He reported 92,664 shares directly and 15,000 shares indirectly via a trust benefiting his wife and children.

Does the Form 4 show any derivative transactions for MLI?

No. Table II for derivative securities in the filing is empty; only common stock sales are reported.

Who benefits from the indirect holdings reported in the MLI Form 4?

The indirect holdings are held by a trust for which his wife and children serve as beneficiaries.