X0306 4 2017-05-10 0000066570 MSA Safety Inc MSA 0001183337 SHAW L EDWARD JR 11377 TURTLE BEACH ROAD N. PALM BEACH FL 33408 1 Common Stock, no par value 2017-05-10 4 M 0 1951.0000 42.6900 A 495035.0000 D Common Stock, no par value 2017-05-10 4 S 0 1073.0000 77.7492 D 493962.0000 D Common Stock, no par value 2017-05-10 4 S 0 37739.0000 77.9500 D 188147.0000 I By Wife as Trustee Common Stock, no par value 2017-05-11 4 S 0 9076.0000 78.0236 D 179071.0000 I By Wife as Trustee Common Stock, no par value 83123.0000 I By Wife Non-statutory Stock Option 42.6900 2017-05-10 4 M 0 1951.0000 42.6900 D 2010-05-15 2017-05-15 Common Stock, no par value 1951.0000 0.0000 D Share price on this transaction ranged from $77.741 to $77.785. Share price on this transaction ranged from $77.9 to $78.385. Share price on this transaction ranged from $78 to $78.15. Douglas K. McClaine, Attorney in Fact 2017-05-12