[Form 4] MUELLER INDUSTRIES INC Insider Trading Activity

Rhea-AI Filing Summary

HANSEN JOHN B reported acquisition or exercise transactions in this Form 4 filing.

Mueller Industries director John B. Hansen reported a compensation-related grant of 1,222 shares of Common Stock at a per-share price of $0.0000. After this award, he holds 91,886 shares directly and 15,000 shares indirectly through a trust benefiting his wife and children.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider HANSEN JOHN B

Role null

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	1,222	$0.00	--
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 91,886 shares (Direct, null); Common Stock — 15,000 shares (Indirect, by a trust where his wife and children serve as beneficiaries)

Footnotes (1)

Key Figures

Stock grant size: 1,222 shares Grant price per share: $0.0000 per share Direct holdings after grant: 91,886 shares +1 more

4 metrics

Stock grant size 1,222 shares Common Stock grant with code A

Grant price per share $0.0000 per share Equity award, not market purchase

Direct holdings after grant 91,886 shares Common Stock directly owned after transaction

Indirect trust holdings 15,000 shares Held by a trust for wife and children

Key Terms

Common Stock, Grant, award, or other acquisition, Form 4, indirect ownership

4 terms

Common Stock financial

"reported a compensation-related grant of 1,222 shares of Common Stock at a per-share price"

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

Grant, award, or other acquisition financial

"transaction_code_description": "Grant, award, or other acquisition""

Form 4 regulatory

"The Form 4 shows 15,000 Mueller Industries Common Stock shares held indirectly by a trust"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

indirect ownership financial

"15,000 shares indirectly through a trust benefiting his wife and children"

Form 4 Insider Transactions: What Each Field Means →

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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 OHIO 45227

(City) (State) (Zip)

UNITED STATES

(Country)

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)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/08/2026

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

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

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

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	05/08/2026		A		1,222	A	$0	91,886	D
Common Stock								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	05/11/2026
	** 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.
* Form 4: SEC 1474 (03-26)