| 
 Mueller Industries, Inc. 
 | 
| 
 (Name of Issuer) 
 | 
| 
 Common Stock, $0.01 par value 
 | 
| 
 (Title of class of securities) 
 | 
| 
 624756102 
 | 
| 
 (CUSIP number) 
 | 
| 
 Joseph A. Orlando 
Vice President and Chief Financial Officer 
Leucadia National Corporation 
315 Park Avenue South 
New York, New York 10010 
with a copy to: 
Andrea A. Bernstein, Esq. 
Weil, Gotshal & Manges LLP 
767 Fifth Avenue 
New York, New York 10153 
 | 
| 
 (Name, address and telephone number of person authorized to receive notices and communications) 
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| 
 September 2, 2011 
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| 
 (Date of event which requires filing of this statement) 
 | 
| 
 CUSIP No. 624756102 
 | 
 13D 
 | 
 Page 2 
 | 
| 
 1 
 | 
 NAME OF REPORTING PERSON: 
 | 
 Leucadia National Corporation 
 | 
||
| 
 2 
 | 
 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP: 
 | 
 (a)  [X] 
(b)  [   ] 
 | 
||
| 
 3 
 | 
 SEC USE ONLY 
 | 
|||
| 
 4 
 | 
 SOURCE OF FUNDS: 
 | 
 N/A 
 | 
||
| 
 5 
 | 
 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO  
ITEM 2(d) OR 2(e): 
 | 
 [  ] 
 | 
||
| 
 6 
 | 
 CITIZENSHIP OR PLACE OF ORGANIZATION: 
 | 
 New York 
 | 
||
| 
 NUMBER OF SHARES 
BENEFICIALLY 
OWNED BY 
EACH 
REPORTING 
PERSON WITH 
 | 
 7 
 | 
 SOLE VOTING POWER: 
 | 
 -0- 
 | 
|
| 
 8 
 | 
 SHARED VOTING POWER: 
 | 
 10,135,259 
 | 
||
| 
 9 
 | 
 SOLE DISPOSITIVE POWER: 
 | 
 -0- 
 | 
||
| 
 10 
 | 
 SHARED DISPOSITIVE POWER: 
 | 
 10,135,259 
 | 
||
| 
 11 
 | 
 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON: 
 | 
 10,135,259 
 | 
||
| 
 12 
 | 
 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES: 
 | 
 [  ] 
 | 
||
| 
 13 
 | 
 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11): 
 | 
 26.7%   
 | 
||
| 
 14 
 | 
 TYPE OF REPORTING PERSON: 
 | 
 CO 
 | 
||
| 
 CUSIP No. 624756102 
 | 
 13D 
 | 
 Page 3 
 | 
| 
 1 
 | 
 NAME OF REPORTING PERSON: 
 | 
 Phlcorp Holding LLC 
 | 
||
| 
 2 
 | 
 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP: 
 | 
 (a)  [X] 
(b)  [   ] 
 | 
||
| 
 3 
 | 
 SEC USE ONLY 
 | 
|||
| 
 4 
 | 
 SOURCE OF FUNDS: 
 | 
 N/A 
 | 
||
| 
 5 
 | 
 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO  
ITEM 2(d) OR 2(e): 
 | 
 [  ] 
 | 
||
| 
 6 
 | 
 CITIZENSHIP OR PLACE OF ORGANIZATION: 
 | 
 Pennsylvania 
 | 
||
| 
 NUMBER OF SHARES 
BENEFICIALLY 
OWNED BY 
EACH 
REPORTING 
PERSON WITH 
 | 
 7 
 | 
 SOLE VOTING POWER: 
 | 
 -0- 
 | 
|
| 
 8 
 | 
 SHARED VOTING POWER: 
 | 
 10,135,259 
 | 
||
| 
 9 
 | 
 SOLE DISPOSITIVE POWER: 
 | 
 -0- 
 | 
||
| 
 10 
 | 
 SHARED DISPOSITIVE POWER: 
 | 
 10,135,259 
 | 
||
| 
 11 
 | 
 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON: 
 | 
 10,135,259 
 | 
||
| 
 12 
 | 
 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES: 
 | 
 [  ] 
 | 
||
| 
 13 
 | 
 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11): 
 | 
 26.7%   
 | 
||
| 
 14 
 | 
 TYPE OF REPORTING PERSON: 
 | 
 OO 
 | 
||
| 
 CUSIP No. 624756102 
 | 
 13D 
 | 
 Page 4 
 | 
| 
 1 
 | 
 NAME OF REPORTING PERSON: 
 | 
 Baldwin Enterprises, Inc. 
 | 
||
| 
 2 
 | 
 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP: 
 | 
 (a)  [X] 
(b)  [   ] 
 | 
||
| 
 3 
 | 
 SEC USE ONLY 
 | 
|||
| 
 4 
 | 
 SOURCE OF FUNDS: 
 | 
 WC 
 | 
||
| 
 5 
 | 
 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO  
ITEM 2(d) OR 2(e): 
 | 
 [  ] 
 | 
||
| 
 6 
 | 
 CITIZENSHIP OR PLACE OF ORGANIZATION: 
 | 
 Colorado 
 | 
||
| 
 NUMBER OF SHARES 
BENEFICIALLY 
OWNED BY 
EACH 
REPORTING 
PERSON WITH 
 | 
 7 
 | 
 SOLE VOTING POWER: 
 | 
 -0- 
 | 
|
| 
 8 
 | 
 SHARED VOTING POWER: 
 | 
 10,135,259 
 | 
||
| 
 9 
 | 
 SOLE DISPOSITIVE POWER: 
 | 
 -0- 
 | 
||
| 
 10 
 | 
 SHARED DISPOSITIVE POWER: 
 | 
 10,135,259 
 | 
||
| 
 11 
 | 
 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON: 
 | 
 10,135,259 
 | 
||
| 
 12 
 | 
 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES: 
 | 
 [  ] 
 | 
||
| 
 13 
 | 
 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11): 
 | 
 26.7%   
 | 
||
| 
 14 
 | 
 TYPE OF REPORTING PERSON: 
 | 
 CO 
 | 
||
| 
 CUSIP No. 624756102 
 | 
 13D 
 | 
 Page 5 
 | 
| 
 1 
 | 
 NAME OF REPORTING PERSON: 
 | 
 BEI Arch Holdings, LLC 
 | 
||
| 
 2 
 | 
 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP: 
 | 
 (a)  [X] 
(b)  [   ] 
 | 
||
| 
 3 
 | 
 SEC USE ONLY 
 | 
|||
| 
 4 
 | 
 SOURCE OF FUNDS: 
 | 
 N/A 
 | 
||
| 
 5 
 | 
 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO  
ITEM 2(d) OR 2(e): 
 | 
 [  ] 
 | 
||
| 
 6 
 | 
 CITIZENSHIP OR PLACE OF ORGANIZATION: 
 | 
 Delaware 
 | 
||
| 
 NUMBER OF SHARES 
BENEFICIALLY 
OWNED BY 
EACH 
REPORTING 
PERSON WITH 
 | 
 7 
 | 
 SOLE VOTING POWER: 
 | 
 -0- 
 | 
|
| 
 8 
 | 
 SHARED VOTING POWER: 
 | 
 10,135,259 
 | 
||
| 
 9 
 | 
 SOLE DISPOSITIVE POWER: 
 | 
 -0- 
 | 
||
| 
 10 
 | 
 SHARED DISPOSITIVE POWER: 
 | 
 10,135,259 
 | 
||
| 
 11 
 | 
 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON: 
 | 
 10,135,259 
 | 
||
| 
 12 
 | 
 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES: 
 | 
 [  ] 
 | 
||
| 
 13 
 | 
 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11): 
 | 
 26.7%   
 | 
||
| 
 14 
 | 
 TYPE OF REPORTING PERSON: 
 | 
 OO 
 | 
||
| 
 CUSIP No. 624756102 
 | 
 13D 
 | 
 Page 6 
 | 
| 
 1 
 | 
 NAME OF REPORTING PERSON: 
 | 
 BEI-Longhorn, LLC 
 | 
||
| 
 2 
 | 
 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP: 
 | 
 (a)  [X] 
(b)  [   ] 
 | 
||
| 
 3 
 | 
 SEC USE ONLY 
 | 
|||
| 
 4 
 | 
 SOURCE OF FUNDS: 
 | 
 OO 
 | 
||
| 
 5 
 | 
 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO  
ITEM 2(d) OR 2(e): 
 | 
 [  ] 
 | 
||
| 
 6 
 | 
 CITIZENSHIP OR PLACE OF ORGANIZATION: 
 | 
 Delaware 
 | 
||
| 
 NUMBER OF SHARES 
BENEFICIALLY 
OWNED BY 
EACH 
REPORTING 
PERSON WITH 
 | 
 7 
 | 
 SOLE VOTING POWER: 
 | 
 -0- 
 | 
|
| 
 8 
 | 
 SHARED VOTING POWER: 
 | 
 10,135,259 
 | 
||
| 
 9 
 | 
 SOLE DISPOSITIVE POWER: 
 | 
 -0- 
 | 
||
| 
 10 
 | 
 SHARED DISPOSITIVE POWER: 
 | 
 10,135,259 
 | 
||
| 
 11 
 | 
 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON: 
 | 
 10,135,259 
 | 
||
| 
 12 
 | 
 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES: 
 | 
 [  ] 
 | 
||
| 
 13 
 | 
 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11): 
 | 
 26.7%   
 | 
||
| 
 14 
 | 
 TYPE OF REPORTING PERSON: 
 | 
 OO 
 | 
||
| 
  RESPECT TO SECURITIES OF THE ISSUER. 
 | 
| 
 EXHIBIT 1 
 | 
 Standstill Agreement, dated September 2, 2011, between Leucadia National Corporation and Mueller Industries, Inc. 
 | 
| 
 LEUCADIA NATIONAL CORPORATION 
 | 
|||
| 
 | 
|||
| 
 By:  
 | 
/s/ Joseph A. Orlando | ||
| 
 Name: 
 | 
 Joseph A. Orlando 
 | 
||
| 
 Title: 
 | 
 Vice President and Chief Financial Officer 
 | 
||
| 
 PHLCORP HOLDING LLC 
 | 
|||
| 
 | 
|||
| 
 By:  
 | 
/s/ Joseph A. Orlando | ||
| 
 Name: 
 | 
 Joseph A. Orlando 
 | 
||
| 
 Title: 
 | 
 Vice President 
 | 
||
| 
 BALDWIN ENTERPRISES, INC. 
 | 
|||
| 
 | 
|||
| 
 By:  
 | 
/s/ Joseph A. Orlando | ||
| 
 Name: 
 | 
 Joseph A. Orlando 
 | 
||
| 
 Title: 
 | 
 Vice President 
 | 
||
| 
 BEI ARCH HOLDINGS, LLC 
 | 
|||
| 
 By: 
 | 
 Baldwin Enterprises, Inc. 
 | 
||
| 
 Its Sole Member 
 | 
|||
| 
 | 
|||
| 
 By:  
 | 
/s/ Joseph A. Orlando | ||
| 
 Name: 
 | 
 Joseph A. Orlando 
 | 
||
| 
 Title: 
 | 
 Vice President 
 | 
||
| 
 BEI-LONGHORN, LLC 
 | 
|||
| 
 By: 
 | 
 BEI Arch Holdings, LLC 
 | 
||
| 
 Its Sole Member 
 | 
|||
| 
 By: 
 | 
 Baldwin Enterprises, Inc. 
 | 
||
| 
 Its Sole Member 
 | 
|||
| 
 | 
|||
| 
 By: 
 | 
/s/ Joseph A. Orlando | ||
| 
 Name: 
 | 
 Joseph A. Orlando 
 | 
||
| 
 Title: 
 | 
 Vice President 
 | 
||
| 
 Exhibit No. 
 | 
|
| 
 1 
 | 
 Standstill Agreement, dated September 2, 2011, between Leucadia National Corporation and Mueller Industries, Inc. 
 |