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MUELLER INDUSTRIES INC

For the period ended Sep 26, 2026. Filed Oct 21, 2026.

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About this filing

A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Sep 26, 2026 · Filed Oct 21, 2026

MLI$52.96+1.0%Stored close · as of Nov 6, 2026
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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C.

FORM 10-Q

☒QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended September 26, 2026
OR
☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from ______ to ______
Commission file number 1-6770

(Exact name of registrant as specified in its charter)

Delaware25-0790410
(State or other jurisdiction of incorporation or organization)(I.R.S. Employer Identification No.)
150 Schilling Boulevard · Suite 100
ColliervilleTennessee38017
(Address of principal executive offices)(Zip Code)

(901)753-3200

(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of exchange on which registered
Common Stock, $0.01 Par ValueMLINYSE

Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

Yes ☒ No☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).

Yes ☒ No☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer☒Accelerated filer☐
Non-accelerated filer☐Smaller reporting company☐
Emerging growth company☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the Registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

Yes☐ No☒

The number of shares of the Registrant’s common stock outstanding as of October 16, 2026 was 217,974,381.

FORM 10-Q

For the Quarterly Period Ended September 26, 2026

As used in this report, the terms “Company,” “Mueller,” and “Registrant” mean Mueller Industries, Inc. and its consolidated subsidiaries taken as a whole, unless the context indicates otherwise.

INDEX

Page Number
Part I. Financial Information
Item 1. – Financial Statements (Unaudited)
a.) Condensed Consolidated Statements of Income3
b.) Condensed Consolidated Statements of Comprehensive Income4
c.) Condensed Consolidated Balance Sheets5
d.) Condensed Consolidated Statements of Cash Flows7
e.) Condensed Consolidated Statements of Changes in Equity9
f.) Notes to Condensed Consolidated Financial Statements11
Item 2. – Management's Discussion and Analysis of Financial Condition and Results of Operations31
Item 3. – Quantitative and Qualitative Disclosures About Market Risk41
Item 4. – Controls and Procedures43
Part II. Other Information
Item 1. – Legal Proceedings43
Item 1A. – Risk Factors43
Item 2. – Unregistered Sales of Equity Securities and Use of Proceeds44
Item 5. – Other Information44
Item 6. – Exhibits45
Signatures46
ContentsView on SEC.gov

The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.