Mueller Industries CEO reports stock gifts on Form 4

Mueller Industries Chairman and CEO Christopher Gregory L. reported gifting shares of the company’s common stock.

Rhea-AI Filing Summary

Mueller Industries Chairman and CEO Christopher Gregory L. reported gifting shares of the company’s common stock. He made a bona fide gift of 16,544 shares held directly and a separate bona fide gift of 10,128 shares held indirectly through his spouse, both at a stated price of $0.00 per share, including a gift to a donor-advised fund. After these transfers, he still directly owns 908,177 shares, while his spouse indirectly holds 134,392 shares. Additional indirect holdings remain reported as 13,600 shares held by children, 72,520 shares in a trust where he is a beneficiary, and 70,000 shares in a trust where his spouse is a beneficiary.

Insider Trade Summary

26,672 shares gifted

Gift 5 txns

Insider Christopher Gregory L.

Role Chairman of the Board & CEO

Type	Security	Shares	Price	Value
Gift	Common Stock	16,544	$0.00	$0.00
Gift	Common Stock	10,128	$0.00	$0.00
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 908,177 shares (Direct); Common Stock — 134,392 shares (Indirect, by spouse); Common Stock — 13,600 shares (Indirect, by children); Common Stock — 72,520 shares (Indirect, by trust where he is beneficiary); Common Stock — 70,000 shares (Indirect, by trust where spouse is beneficiary)

Footnotes (1)

1. F1. Gift to a donor-advised fund

FAQ

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

What insider transactions did MLI Chairman and CEO Christopher Gregory L. report?

He reported bona fide gifts of Mueller Industries common stock. These included 16,544 directly held shares and 10,128 shares held indirectly through his spouse, both at a stated $0.00 per share, reflecting non-sale, charitable-style transfers.

Were the reported MLI insider transactions open-market sales?

No, the transactions were not open-market sales. They are coded as G, meaning bona fide gifts of common stock at $0.00 per share, including a gift to a donor-advised fund, rather than cash sales into the market.

How many Mueller Industries shares does the CEO own after these gifts?

After the gifts, he directly holds 908,177 shares of Mueller Industries common stock. Indirectly, his spouse holds 134,392 shares, with additional indirect positions of 13,600 shares by children and trust holdings of 72,520 and 70,000 shares.

What was the size of the spouse-related MLI stock gift reported?

The filing shows a bona fide gift of 10,128 shares of Mueller Industries common stock held indirectly by the spouse. The transaction price is listed as $0.00 per share, confirming it as a non-cash, gift-type transfer rather than a market sale.

Does the Form 4 for MLI mention gifts to a donor-advised fund?

Yes, a footnote specifies a gift to a donor-advised fund. This indicates at least part of the reported bona fide gifts of Mueller Industries common stock was directed to that charitable vehicle, consistent with the G transaction code for gifts.

What indirect Mueller Industries holdings are reported for the CEO’s family and trusts?

Indirectly, the filing lists 13,600 shares held by children, 72,520 shares in a trust where he is a beneficiary, and 70,000 shares in a trust where his spouse is a beneficiary, in addition to his spouse’s 134,392 shares.

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

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Accepted by SEC EDGAR 02/27/2026 - 07:14 PM Learn about SEC filing dates

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^*

Christopher Gregory L.

(Last) (First) (Middle)

2530 JOHNSON ROAD

(Street)

GERMANTOWN TN 38139

(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
X	Officer (give title below)		Other (specify below)
	Chairman of the Board & CEO

3. Date of Earliest Transaction (Month/Day/Year)
02/25/2026

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	02/25/2026		G(1)		16,544	D	$0	908,177	D
Common Stock	02/25/2026		G(1)		10,128	D	$0	134,392	I	by spouse
Common Stock								13,600	I	by children
Common Stock								72,520	I	by trust where he is beneficiary
Common Stock								70,000	I	by trust where spouse is beneficiary

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:

1. Gift to a donor-advised fund

Remarks:

	Anthony J. Steinriede, Attorney-in-Fact	02/27/2026
	** 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.
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