Mueller Industries (NYSE: MLI) director gifts and receives shares

Rhea-AI Filing Summary

Mueller Industries director Charles P. Herzog Jr. reported routine share transfers and an award of common stock. On May 8, 2026, two transactions coded as bona fide gifts moved 1,222 shares from his direct holdings and 1,222 shares from a trust where his wife is beneficiary.

He also received an award-coded acquisition of 1,222 shares of common stock at $0.00 per share, increasing his directly held stake. Following these updates, he holds 9,808 shares directly, 21,085 shares indirectly through a trust for his wife, and 8,000 shares indirectly through a trust for his children.

Insider Trade Summary

2,444 shares gifted

Mixed 4 txns

Insider Herzog Charles P Jr

Role null

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

Holdings After Transaction: Common Stock — 9,808 shares (Direct, null); Common Stock — 21,085 shares (Indirect, by trust where wife is beneficiary)

Footnotes (1)

Key Figures

Gifted shares (direct holding): 1,222 shares Gifted shares (spouse trust): 1,222 shares Awarded shares: 1,222 shares +3 more

6 metrics

Gifted shares (direct holding) 1,222 shares Bona fide gift of common stock on May 8, 2026

Gifted shares (spouse trust) 1,222 shares Bona fide gift from trust where wife is beneficiary

Awarded shares 1,222 shares Grant, award, or other acquisition at $0.00 per share

Direct holdings after transactions 9,808 shares Common stock directly owned after May 8, 2026 activity

Indirect holdings (wife’s trust) 21,085 shares Common stock held by trust where wife is beneficiary

Indirect holdings (children’s trust) 8,000 shares Common stock held by trust where children are beneficiaries

Key Terms

bona fide gift, indirect ownership, grant, award, or other acquisition, Common Stock

4 terms

bona fide gift financial

"transaction code description is listed as "Bona fide gift" for two entries"

A bona fide gift is a genuine, voluntary transfer of money, property, or benefits from one party to another made without expectation of repayment, services, or hidden conditions. Investors care because such gifts can affect company disclosures, related‑party transaction rules, tax treatment, and perceived conflicts of interest; think of it like someone giving you a present with no strings attached — but on a corporate scale, auditors and regulators need to verify it really is unconditional.

indirect ownership financial

"ownership_type is marked as "indirect" for trust-held common stock"

grant, award, or other acquisition financial

"transaction_code "A" is described as "Grant, award, or other acquisition""

Common Stock financial

"security_title is specified as "Common Stock" for all transactions"

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.

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^*

Herzog Charles P Jr

(Last) (First) (Middle)

1826 ENCLAVE HOLLOW LANE EAST

(Street)

GERMANTOWN TENNESSEE 38139

(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	9,808	D
Common Stock	05/08/2026		G	V	1,222	D	$0	8,586	D
Common Stock	05/08/2026		G	V	1,222	A	$0	21,085	I	by trust where wife is beneficiary
Common Stock								8,000	I	by trust where children are 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)

FAQ

What insider transactions did Mueller Industries (MLI) director Charles P. Herzog Jr. report?

Director Charles P. Herzog Jr. reported two bona fide gifts of 1,222 Mueller Industries common shares each and one award acquisition of 1,222 shares. These were recorded on May 8, 2026 and affected both his direct and trust-held positions in the stock.

How many Mueller Industries (MLI) shares did Herzog gift in this Form 4?

Herzog gifted a total of 2,444 Mueller Industries common shares, split into two 1,222-share bona fide gifts. One gift reduced his direct holdings, while the other came from a trust where his wife is the beneficiary, both reported at zero dollar value.

What new Mueller Industries (MLI) shares did Herzog receive according to this filing?

He received an award of 1,222 Mueller Industries common shares coded as a grant or other acquisition. The shares were reported at a price of $0.00 per share, reflecting a compensation-related award rather than a market purchase on May 8, 2026.

What are Herzog’s direct and indirect Mueller Industries (MLI) holdings after these transactions?

After these transactions, Herzog directly owns 9,808 Mueller Industries common shares. He also indirectly owns 21,085 shares through a trust for his wife and 8,000 shares through a trust for his children, as reflected in the reported post-transaction balances.

Do the Mueller Industries (MLI) Form 4 transactions involve open-market buying or selling?

No open-market buying or selling is reported. The transactions are coded as bona fide gifts and an award acquisition, all at a reported price of $0.00 per share. This indicates non-market transfers and compensation-related activity rather than trading on the open market.