X0306 4 2021-09-16 0000066570 MSA Safety Inc MSA 0001187330 LAMBERT WILLIAM M 1000 CRANBERRY WOODS DRIVE CRANBERRY WOODS TOWNSHIP PA 16066 1 Common Stock, no par value 2021-09-16 4 S 0 10000.0000 153.6700 D 60000.0000 I By GRAT (Wife) Common Stock, no par value 41740.0000 D Common Stock, no par value 2100.0000 I By Wife The shares were sold to an exchange fund in consideration of receiving interests in the fund. My Wife, as Trustee of the GRAT, irrevocably committed to selling the shares to the exchange fund on August 23, 2021, but the sale was administratively completed on the date listed in this filing. Stephanie L. Sciullo, Attorney in fact 2021-09-16