SEC FORM 3

FORM 3

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

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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:		3235-0104
Expires:	December 31, 2014
Estimated average burden
hours per response:		0.5

1. Name and Address of Reporting Person ^*

Pieralisi Daniel

(Last)

(First)

(Middle)

1303 BRAYSHORE DRIVE

(Street)

COLLIERVILLE

38017

(City)

(State)

(Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
05/08/2026

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

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

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
Executive VP - Admin

5. If Amendment, Date of Original Filed (Month/Day/Year)
05/11/2026

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

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

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	31,558	D
Common Stock	2,500	D ⁽¹⁾
Common Stock	3,000	D ⁽²⁾
Common Stock	1,500	D ⁽³⁾
Common Stock	1,500	D ⁽⁴⁾
Common Stock	2,400	D ⁽⁵⁾

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)

Explanation of Responses:

1. Represents performance-based restricted stock, which may be earned between 0% and 200% of the target amount reported herein based upon the Issuer's actual performance as compared with an adjusted EBITDA target during the three-year period from December 29, 2024 through December 25, 2027. The vesting date is July 30, 2030.

2. These shares will vest on 7/30/2027.

3. Represents performance-based restricted stock, which may be earned between 0% and 200% of the target amount reported herein based upon the Issuer's actual performance as compared with an adjusted EBITDA target during the three-year period from December 31, 2023 through December 26, 2026. The vesting date is July 30, 2029.

4. Represents performance-based restricted stock, which may be earned between 0% and 200% of the target amount reported herein based upon the Issuer's actual performance as compared with an adjusted EBITDA target during the three-year period from December 31, 2022 through December 27, 2025. The vesting date is July 30, 2028.

5. These shares will vest on 7/30/2026.

	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.