MSA Safety Inc — Director's Dealing 2012

Feb 24, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MINE SAFETY APPLIANCES CO (MSA)
CIK: 0000066570
Period of Report: 2012-02-21

Reporting Person: HERRING RONALD N JR (President)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-02-21	Common Stock, no par value	M	10588	$10.653	Acquired	40964	Direct
2012-02-21	Common Stock, no par value	M	1878	$10.653	Acquired	42842	Direct
2012-02-21	Common Stock, no par value	S	10588	$37.0448	Disposed	32254	Direct
2012-02-22	Common Stock, no par value	S	598	$37.0808	Disposed	31656	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-02-21	Incentive Stock Option	$10.653	M	1878	Disposed	2013-03-12	Common Stock, no par value (1878)	Direct
2012-02-21	Non-statutory Stock Option	$10.653	M	10588	Disposed	2013-03-12	Common Stock, no par value (10588)	Direct

Footnotes

F1: Share price on this transaction ranged from $36.99 to $37.18.

F2: Share price on this transaction ranged from $37.0800 to $37.0810.