MSA Safety Inc — Director's Dealing 2012

Jun 5, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MINE SAFETY APPLIANCES CO (MSA)
CIK: 0000066570
Period of Report: 2012-06-01

Reporting Person: LAMBERT WILLIAM M (Director, President and CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-06-01	Common Stock, no par value	M	32130.0000	$25.0650	Acquired	161742.0000	Direct
2012-06-01	Common Stock, no par value	M	3989.0000	$25.0650	Acquired	165731.0000	Direct
2012-06-01	Common Stock, no par value	F	1684.0000	$39.9800	Disposed	164047.0000	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-06-01	Incentive Stock Option	$25.0650	M	3989.0000	Disposed	2014-03-09	Common Stock, no par value (3989.0000)	Direct
2012-06-01	Non-statutory Stock Option	$25.0650	M	32130.0000	Disposed	2014-03-09	Common Stock, no par value (32130.0000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock, no par value	40000.0000	Indirect