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             Date of Report (Date of earliest event reported): 
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             May 7, 2020 
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| 
             Delaware 
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             1-6770 
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             25-0790410 
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             (State or other 
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             (Commission File 
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             (IRS Employer 
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             jurisdiction of 
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             Number) 
           | 
          
             Identification No.) 
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             incorporation) 
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             | 
          
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             150 Schilling Blvd. 
            Suite 100 
            Collierville, Tennessee 
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             38017 
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             (Address of principal executive offices) 
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             (Zip Code) 
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             Registrant's telephone number, including area code: 
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             (901) 753-3200 
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             Registrant's Former Name or Address, if changed since last report: 
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             N/A 
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| 
             ☐ 
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             Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) 
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             ☐ 
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             Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) 
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| 
             ☐ 
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             Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) 
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| 
             ☐ 
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             Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) 
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             Title of each class 
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             Trading Symbol(s) 
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             Name of each exchange on which registered 
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| 
             Common Stock, $0.01 Par Value 
           | 
          
             MLI 
           | 
          
             New York Stock Exchange 
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| 
             | 
          
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             For 
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             | 
          
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             Withheld 
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             | 
          
             | 
          
             Broker Non-Votes 
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             | 
        |||
| 
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        |||
| 
             Gregory L. Christopher 
           | 
          
             | 
          
             | 
          
             49,707,622 
           | 
          
             | 
          
             | 
          
             | 
          
             2,001,929 
           | 
          
             | 
          
             | 
          
             | 
          
             2,636,175 
           | 
          
             | 
        
| 
             Elizabeth Donovan 
           | 
          
             50,389,156 
           | 
          
             1,320,395 
           | 
          
             2,636,175 
           | 
          
             | 
        ||||||||
| 
             Gennaro J. Fulvio 
           | 
          
             | 
          
             | 
          
             50,097,441 
           | 
          
             | 
          
             | 
          
             | 
          
             1,612,110 
           | 
          
             | 
          
             | 
          
             | 
          
             2,636,175 
           | 
          
             | 
        
| 
             Gary S. Gladstein 
           | 
          
             | 
          
             | 
          
             48,827,752 
           | 
          
             | 
          
             | 
          
             | 
          
             2,881,799 
           | 
          
             | 
          
             | 
          
             | 
          
             2,636,175 
           | 
          
             | 
        
| 
             Scott J. Goldman 
           | 
          
             | 
          
             | 
          
             49,181,193 
           | 
          
             | 
          
             | 
          
             | 
          
             2,528,358 
           | 
          
             | 
          
             | 
          
             | 
          
             2,636,175 
           | 
          
             | 
        
| 
             John B. Hansen 
           | 
          
             | 
          
             | 
          
             50,111,185 
           | 
          
             | 
          
             | 
          
             | 
          
             1,598,366 
           | 
          
             | 
          
             | 
          
             | 
          
             2,636,175 
           | 
          
             | 
        
| 
             Terry Hermanson 
           | 
          
             | 
          
             | 
          
             50,291,371 
           | 
          
             | 
          
             | 
          
             1,418,180 
           | 
          
             | 
          
             | 
          
             | 
          
             2,636,175 
           | 
          
             | 
        |
| 
             Charles P. Herzog, Jr. 
           | 
          
             48,853,861 
           | 
          
             2,855,690 
           | 
          
             2,636,175 
           | 
          
             | 
        ||||||||
| 
             For 
           | 
          
             | 
          
             Against 
           | 
          
             | 
          
             Abstain 
           | 
        
| 
             53,381,213 
           | 
          
             | 
          
             946,743 
           | 
          
             | 
          
             17,770 
           | 
        
| 
             For 
           | 
          
             | 
          
             Against 
           | 
          
             | 
          
             Abstain 
           | 
          
             | 
          
             Broker Non-Votes 
           | 
        
| 
             39,778,743 
           | 
          
             | 
          
             11,863,101 
           | 
          
             | 
          
             67,707 
           | 
          
             | 
          
             2,636,175 
           | 
        
| 
             Item 8.01 
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             Other Events. 
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| 
             Item 9.01 
           | 
          
             Financial Statements and Exhibits. 
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| 
             | 
          
             MUELLER INDUSTRIES, INC. 
           | 
          
             | 
        |
| 
             | 
          
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             | 
          
             By: 
           | 
          
             /s/ Anthony J. Steinriede 
           | 
          
             | 
        
| 
             | 
          
             Name: 
           | 
          
             Anthony J. Steinriede 
           | 
          
             | 
        
| 
             | 
          
             Title: 
           | 
          
             Vice President, 
            Corporate Controller 
           | 
          
             | 
        
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             |