MSA Safety Inc — Director's Dealing 2017

May 4, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MSA Safety Inc (MSA)
CIK: 0000066570
Period of Report: 2017-05-02

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-05-02	Common Stock, no par value	M	38796.0000	$17.8300	Acquired	204553.0000	Direct
2017-05-02	Common Stock, no par value	S	4794.0000	$79.0070	Disposed	199759.0000	Direct
2017-05-02	Common Stock, no par value	S	34002.0000	$78.8905	Disposed	165757.0000	Direct
2017-05-03	Common Stock, no par value	M	5998.0000	$17.8300	Acquired	171755.0000	Direct
2017-05-03	Common Stock, no par value	M	1800.0000	$17.8300	Acquired	173555.0000	Direct
2017-05-03	Common Stock, no par value	S	1800.0000	$79.0156	Disposed	171755.0000	Direct
2017-05-03	Common Stock, no par value	S	5998.0000	$78.3581	Disposed	165757.0000	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2017-05-02	Non-statutory Stock Option	$17.8300	M	38796.0000	Disposed	2019-02-23	Common Stock, no par value (38796.0000)	Direct
2017-05-03	Non-statutory Stock Option	$17.8300	M	1800.0000	Disposed	2019-02-23	Common Stock, no par value (1800.0000)	Direct
2017-05-03	Non-statutory Stock Option	$17.8300	M	5998.0000	Disposed	2019-02-23	Common Stock, no par value (5998.0000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock, no par value	60600.0000	Indirect

Footnotes

F1: Share price on this transaction ranged from $79 to $79.06.

F2: Share price on this transaction ranged from $78.58 to $79.075.

F3: Share price on this transaction ranged from $79 to $79.09.

F4: Share price on this transaction ranged from $78 to $78.705.