X0306 4 2023-03-10 0000066570 MSA Safety Inc MSA 0001589622 Jordan Gregory B. 1000 CRANBERRY WOODS DRIVE CRANBERRY WOODS TOWNSHIP PA 16066 1 Common Stock, no par value 2023-03-10 4 A 0 10.5380 0.0000 A 4644.6830 D Securities acquired are derived from the dividend equivalent rights that are attached to the restricted stock units and related phantom stock that were awarded to the reporting person upon the deferral of reportingperson's annual director award. Stephanie L. Sciullo, Attorney in fact 2023-03-13