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: Wesson Franks Melanie Kay (VP, Administration)

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	4879	Direct
Common Stock	812	Indirect

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Employee Stock Option (Right to Buy)	$36.91	2017-07-27	Common Stock (700)		Direct
Employee Stock Option (Right to Buy)	$26.485	2018-07-25	Common Stock (1400)		Direct
Employee Stock Option (Right to Buy)	$23.825	2019-07-30	Common Stock (2400)		Direct
Employee Stock Option (Right to Buy)	$24.48	2020-07-23	Common Stock (4800)		Direct

Footnotes

F1: Represents shares held by the reporting persons spouse.

F2: The options vest as follows: 700 on 7/25/2012; 700 on 7/25/2013

F3: The options vest as follows: 800 on 7/30/2012; 800 on 7/30/2013; 800 on 7/30/2014

F4: The options vest as follows: 1,200 on 7/23/2012; 1,200 on 7/23/2013; 1,200 on 7/23/2014; 1,200 on 7/23/2015