Mueller Industries (NYSE: MLI) director receives 1,222-share stock award

Rhea-AI Filing Summary

HERMANSON TERRY reported acquisition or exercise transactions in this Form 4 filing.

Mueller Industries director Terry Hermanson received a grant of 1,222 shares of Common Stock on May 8, 2026. The shares were awarded at no cash cost per share, indicating a compensation-related stock award rather than an open-market purchase. Following this grant, Hermanson directly holds 87,970 shares of Mueller Industries common stock.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider HERMANSON TERRY

Role null

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

Holdings After Transaction: Common Stock — 87,970 shares (Direct, null)

Footnotes (1)

Key Figures

Shares granted: 1,222 shares Grant price: $0.0000 per share Shares held after grant: 87,970 shares

3 metrics

Shares granted 1,222 shares Common Stock grant on May 8, 2026

Grant price $0.0000 per share Compensation-related award, not open-market purchase

Shares held after grant 87,970 shares Direct Common Stock holdings after transaction

Key Terms

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

3 terms

Common Stock financial

"security_title: "Common Stock" in the reported non-derivative transaction"

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" for code A"

Form 4 regulatory

"INSIDER FILING DATA (Form 4) summary of Terry Hermanson’s transaction"

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.

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^*

HERMANSON TERRY

(Last) (First) (Middle)

6 E 76TH STREET

(Street)

NEW YORK NEW YORK 10021

(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	87,970	D

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 transaction did Mueller Industries (MLI) report for Terry Hermanson?

Terry Hermanson was granted 1,222 shares of Mueller Industries Common Stock. The transaction was coded as a grant or award, meaning it was compensation-related rather than an open-market purchase, and increased his direct holdings reported in this filing.

How many Mueller Industries (MLI) shares does Terry Hermanson hold after this Form 4?

After the reported grant, Terry Hermanson holds 87,970 shares of Mueller Industries Common Stock. This total reflects his direct ownership position as shown in the Form 4, incorporating the 1,222-share award received on May 8, 2026.

Was cash paid for the 1,222-share award to Mueller Industries director Terry Hermanson?

No cash was paid per share for this 1,222-share award. The Form 4 shows a transaction price of $0.0000 per share, indicating the shares were granted as compensation rather than purchased in the market for cash consideration.

How is the Terry Hermanson transaction in Mueller Industries (MLI) classified on Form 4?

The transaction is classified with code A, described as a grant, award, or other acquisition. It is labeled as an acquisition direction, and reflects a non-derivative grant of Common Stock directly to Hermanson as part of his compensation.

Does the Mueller Industries (MLI) Form 4 show any insider stock sales by Terry Hermanson?

The Form 4 shows no insider stock sales by Terry Hermanson in this report. It lists one non-derivative acquisition transaction, a 1,222-share grant of Common Stock, with no sell transactions or derivative exercises reported in the summarized data.