| 
 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) 
 | 
| 
 August 31, 2011 
 | 
| 
 (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 
 | 
||
| 
 LEUCADIA NATIONAL CORPORATION 
 | 
|||
| 
 | 
|||
| 
 By:  
 | 
/s/ Barbara L. Lowenthal | ||
| 
 Name: 
 | 
 Barbara L. Lowenthal 
 | 
||
| 
 Title: 
 | 
 Vice President and Comptroller 
 | 
||
| 
 PHLCORP HOLDING LLC 
 | 
|||
| 
 | 
|||
| 
 By:  
 | 
/s/ Barbara L. Lowenthal | ||
| 
 Name: 
 | 
 Barbara L. Lowenthal 
 | 
||
| 
 Title: 
 | 
 Vice President 
 | 
||
| 
 BALDWIN ENTERPRISES, INC. 
 | 
|||
| 
 | 
|||
| 
 By:  
 | 
/s/ Barbara L. Lowenthal | ||
| 
 Name: 
 | 
 Barbara L. Lowenthal 
 | 
||
| 
 Title: 
 | 
 Vice President 
 | 
||
| 
 BEI ARCH HOLDINGS, LLC 
 | 
|||
| 
 By: 
 | 
 Baldwin Enterprises, Inc. 
 | 
||
| 
 Its Sole Member 
 | 
|||
| 
 | 
|||
| 
 By:  
 | 
/s/ Barbara L. Lowenthal | ||
| 
 Name: 
 | 
 Barbara L. Lowenthal 
 | 
||
| 
 Title: 
 | 
 Vice President 
 | 
||
| 
 BEI-LONGHORN, LLC 
 | 
|||
| 
 By: 
 | 
 BEI Arch Holdings, LLC 
 | 
||
| 
 Its Sole Member 
 | 
|||
| 
 By: 
 | 
 Baldwin Enterprises, Inc. 
 | 
||
| 
 Its Sole Member 
 | 
|||
| 
 | 
|||
| 
 By: 
 | 
/s/ Barbara L. Lowenthal | ||
| 
 Name: 
 | 
 Barbara L. Lowenthal 
 | 
||
| 
 Title: 
 | 
 Vice President 
 | 
||
| 
 Reporting Person 
 | 
 Date 
 | 
 Transaction 
 | 
 Number of 
Shares of 
Common Stock 
 | 
 Weighted 
Average Price 
Per Share 
 | 
| 
 BEI Longhorn 
 | 
 08/26/2011 
 | 
 Purchase 
 | 
 12,900 
 | 
 $41.63695(1) 
 | 
| 
 BEI Longhorn 
 | 
 08/26/2011 
 | 
 Purchase 
 | 
 19,289 
 | 
 $43.16864(2) 
 | 
| 
 BEI Longhorn 
 | 
 08/26/2011 
 | 
 Purchase 
 | 
 100,911 
 | 
 $43.72837(3) 
 | 
| 
 BEI Longhorn 
 | 
 08/29/2011 
 | 
 Purchase 
 | 
 37,538 
 | 
 $45.16053(4) 
 | 
| 
 BEI Longhorn 
 | 
 08/29/2011 
 | 
 Purchase 
 | 
 23,462 
 | 
 $45.99874(5) 
 | 
| 
 BEI Longhorn 
 | 
 08/30/2011 
 | 
 Purchase 
 | 
 84,345 
 | 
 $45.56481(6) 
 | 
| 
 BEI Longhorn 
 | 
 08/30/2011 
 | 
 Purchase 
 | 
 55,655 
 | 
 $46.62159(7) 
 | 
| 
 BEI Longhorn 
 | 
 08/31/2011 
 | 
 Purchase 
 | 
 224,225 
 | 
 $47.32960(8) 
 | 
| 
 (1)   
 | 
 Reflects weighted average per share price (excluding commissions) of separately priced transactions at a range of $41.445-$42.42. Upon the request of the staff of the Commission, full information regarding the number of shares sold at each separate price will be provided. 
 | 
| 
 (2)   
 | 
 Reflects weighted average per share price (excluding commissions) of separately priced transactions at a range of $42.47-$43.47. Upon the request of the staff of the Commission, full information regarding the number of shares sold at each separate price will be provided. 
 | 
| 
 (3)   
 | 
 Reflects weighted average per share price (excluding commissions) of separately priced transactions at a range of $43.48-$44.09. Upon the request of the staff of the Commission, full information regarding the number of shares sold at each separate price will be provided. 
 | 
| 
 (4)   
 | 
 Reflects weighted average per share price (excluding commissions) of separately priced transactions at a range of $44.56-$45.55. Upon the request of the staff of the Commission, full information regarding the number of shares sold at each separate price will be provided. 
 | 
| 
 (5)   
 | 
 Reflects weighted average per share price (excluding commissions) of separately priced transactions at a range of $45.62-$46.23. Upon the request of the staff of the Commission, full information regarding the number of shares sold at each separate price will be provided. 
 | 
| 
 (6)   
 | 
 Reflects weighted average per share price (excluding commissions) of separately priced transactions at a range of $45.30-$46.30. Upon the request of the staff of the Commission, full information regarding the number of shares sold at each separate price will be provided. 
 | 
| 
 (7)   
 | 
 Reflects weighted average per share price (excluding commissions) of separately priced transactions at a range of $46.31-$46.87. Upon the request of the staff of the Commission, full information regarding the number of shares sold at each separate price will be provided. 
 | 
| 
 (8)   
 | 
 Reflects weighted average per share price (excluding commissions) of separately priced transactions at a range of $46.945-$47.66. Upon the request of the staff of the Commission, full information regarding the number of shares sold at each separate price will be provided. 
 |