MUELLER INDUSTRIES INC — Director's Dealing 2012

May 15, 2012

SEC Form 3 — Initial Statement of Beneficial Ownership

Issuer: MUELLER INDUSTRIES INC (MLI)
CIK: 0000089439
Period of Report: 2012-05-03

Reporting Person: Murdock Douglas John (President, HVACR Business)

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	17363	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Employee Stock Option (Right to Buy)	$36.91	2017-07-27	Common Stock (1000)		Direct
Employee Stock Option (Right to Buy)	$26.485	2018-07-25	Common Stock (5600)		Direct
Employee Stock Option (Right to Buy)	$23.825	2019-07-30	Common Stock (7200)		Direct
Employee Stock Option (Right to Buy)	$24.48	2020-07-23	Common Stock (12000)		Direct

Footnotes

F1: The option vest as follows: 2,800 on 7/25/2012; 2,800 on 7/25/2013

F2: The options vest as follows: 2,400 on 7/30/2012; 2,400 on 7/30/2013; 2,400 on 7/30/2014

F3: The options vest as follows: 3,000 on 7/23/2012; 3,000 on 7/23/2013; 3,000 on 7/23/2014; 3,000 on 7/23/2015