MUELLER INDUSTRIES INC

8-K · mli-20260602.htm iXBRL

0000089439 2026-06-02 2026-06-02

 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): June 2, 2026

 MUELLER INDUSTRIES INC.
 (Exact name of registrant as specified in its charter)  

 Delaware 1-6770 25-0790410
 (State or other jurisdiction (Commission File (IRS Employer
 of incorporation) Number) Identification No.)

   

 150 Schilling Boulevard Suite 100
 Collierville Tennessee 38017
 (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 class Trading Symbol Name of exchange on which registered
 Common Stock MLI NYSE

  
  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 8.01. Other Events.

 On June 1, 2026, the Company announced a two-for-one forward stock split (the “Stock Split”), of the Company’s issued common stock to be effected through the filing of an amendment to the Company's Restated Certificate of Incorporation (the “Amendment”), with the Secretary of the State of Delaware. The Amendment will result in a proportionate increase in the number of shares of authorized common stock. As a result of the Stock Split, each record holder of common stock as of the close of market on Thursday, June 25, 2026 will receive one additional share of common stock, to be distributed after the close of market on Tuesday, June 30, 2026. Trading is expected to commence on a split-adjusted basis at market open on Wednesday, July 1, 2026.

 Item 9.01. Financial Statements and Exhibits.

  
 (d) Exhibits
  

   99.1 Press release, dated June 1, 2026.

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  

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   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/ CHRISTOPHER J. MIRITELLO

   Name: Christopher J. Miritello
   Title: Executive Vice President - General Counsel & Secretary
      
 June 2, 2026    

  

  

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