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as of 03-09-2026 2:43pm EST

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Mueller Industries Inc makes copper, brass, aluminum, and plastic products. The company reports three business segments: piping systems, industrial metals, and climate. Piping systems, earning majority of the company's revenue, produces tubes, fittings, rods, valves, and other products and operates various firms world-wide. The industrial metals segment manufactures impacts and micro-gauge, brass rod and copper bar products, and brass value-added products. The climate segment produces items used to create temperature-control goods, including valves, twisted tubes, coaxial heat exchangers, and others. Numerous systems use the aforementioned products, including HVAC, water distribution, refrigeration, and automotive.

Founded: 1917 Country:
United States
United States
Employees: N/A City: COLLIERVILLE
Market Cap: 13.1B IPO Year: 1994
Target Price: N/A AVG Volume (30 days): 659.9K
Analyst Decision: N/A Number of Analysts: N/A
Dividend Yield:
0.87%
Dividend Payout Frequency: quarterly
EPS: 6.86 EPS Growth: 29.19
52 Week Low/High: $66.84 - $139.29 Next Earning Date: N/A
Revenue: $4,178,547,000 Revenue Growth: 10.87%
Revenue Growth (this year): 10.66% Revenue Growth (next year): 7.46%
P/E Ratio: 16.72 Index: N/A
Free Cash Flow: 686.6M FCF Growth: +21.38%

Stock Insider Trading Activity of Mueller Industries Inc. (MLI)

Sell
MLI Feb 13, 2026

Avg Cost/Share

$118.97

Shares

4,430

Total Value

$527,037.10

Owned After

41,645

SEC Form 4

Sell
MLI Feb 9, 2026

Avg Cost/Share

$116.71

Shares

1,000

Total Value

$116,710.00

Owned After

90,664

SEC Form 4

Earnings Transcripts

SEC 8-K filings with transcript text

View All
2025
Q4

Q4 2025 Earnings

8-K SELL

Feb 3, 2026 · 100% conf.

AI Prediction SELL

1D

+0.00%

$123.65

5D

+0.00%

$123.65

20D

+0.00%

$123.65

Price: $123.65 Prob +5D: 0% AUC: 1.000
0000089439-26-000002

mli-202602030000089439false00000894392025-02-042025-02-04

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported):February 3, 2026

MUELLER INDUSTRIES INC.

(Exact name of registrant as specified in its charter)

Delaware1-677025-0790410 (State or other jurisdiction(Commission File(IRS Employer of incorporation)Number)Identification No.)

150 Schilling BoulevardSuite 100 ColliervilleTennessee38017 (Address of principal executive offices)(Zip Code)

Registrant’s telephone number, including area code:(901)753-3200

Registrant’s Former Name or Address, if changed since last report:N/A

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

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

Title of each classTrading SymbolName of exchange on which registered Common StockMLINYSE

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

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 of revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 2.02Results of Operations and Financial Condition.

On February 3, 2026, the Registrant issued a press release announcing earnings for the quarter and year ended December 27, 2025. A copy of the press release announcing the fourth quarter and fiscal 2025 earnings is attached as Exhibit 99.1.

Item 9.01Financial Statements and Exhibits.

(d) Exhibits

99.1Press release dated February 3, 2026 reporting fourth quarter and fiscal 2025 earnings.

2

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this Report to be signed on its behalf by the undersigned hereunto duly authorized.

MUELLER INDUSTRIES, INC.

By:/s/ Anthony J. Steinriede Name:Anthony J. Steinriede Title:Vice President - Corporate Controller

Date: February 3, 2026

3

Exhibit Index

Exhibit No.Description

99.1Press release dated, February 3, 2026

4

2025
Q3

Q3 2025 Earnings

8-K

Oct 21, 2025

0000089439-25-000055

mli-202510210000089439FALSE00000894392025-07-222025-07-22

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported):October 21, 2025

MUELLER INDUSTRIES INC.

(Exact name of registrant as specified in its charter)

Delaware1-677025-0790410 (State or other jurisdiction(Commission File(IRS Employer of incorporation)Number)Identification No.)

150 Schilling BoulevardSuite 100 ColliervilleTennessee38017 (Address of principal executive offices)(Zip Code)

Registrant’s telephone number, including area code:(901)753-3200

Registrant’s Former Name or Address, if changed since last report:N/A

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

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

Title of each classTrading SymbolName of exchange on which registered Common StockMLINYSE

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

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 of revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 2.02.Results of Operations and Financial Condition.

On October 21, 2025, the Registrant issued a press release announcing earnings for the quarter ended September 27, 2025. A copy of the press release announcing the third quarter 2025 earnings is attached as Exhibit 99.1.

Item 9.01.Financial Statements and Exhibits.

(d) Exhibits

99.1Press release, dated October 21, 2025 reporting  third quarter 2025 earnings.

2

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this Report to be signed on its behalf by the undersigned hereunto duly authorized.

MUELLER INDUSTRIES, INC.

By:/s/ ANTHONY J. STEINRIEDE

Name:Anthony J. Steinriede Title:Vice President - Corporate Controller

October 21, 2025

3

Exhibit Index

Exhibit No.Description

99.1Press release, dated October 21, 2025

4

2025
Q2

Q2 2025 Earnings

8-K

Jul 22, 2025

0000089439-25-000041

mli-202507220000089439FALSE00000894392025-07-222025-07-22

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported):July 22, 2025

MUELLER INDUSTRIES INC.

(Exact name of registrant as specified in its charter)

Delaware1-677025-0790410 (State or other jurisdiction(Commission File(IRS Employer of incorporation)Number)Identification No.)

150 Schilling BoulevardSuite 100 ColliervilleTennessee38017 (Address of principal executive offices)(Zip Code)

Registrant’s telephone number, including area code:(901)753-3200

Registrant’s Former Name or Address, if changed since last report:N/A

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

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

Title of each classTrading SymbolName of exchange on which registered Common StockMLINYSE

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

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 of revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 2.02.Results of Operations and Financial Condition.

On July 22, 2025, the Registrant issued a press release announcing earnings for the quarter ended June 28, 2025. A copy of the press release announcing the second quarter 2025 earnings is attached as Exhibit 99.1.

Item 9.01.Financial Statements and Exhibits.

(d) Exhibits

99.1Press release, dated July 22, 2025 reporting  second quarter 2025 earnings.

2

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this Report to be signed on its behalf by the undersigned hereunto duly authorized.

MUELLER INDUSTRIES, INC.

By:/s/ ANTHONY J. STEINRIEDE

Name:Anthony J. Steinriede Title:Vice President - Corporate Controller

July 22, 2025

3

Exhibit Index

Exhibit No.Description

99.1Press release, dated July 22, 2025

4

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