X0306 4 2021-12-14 0000066570 MSA Safety Inc MSA 0001001300 RYAN JOHN T III 1000 CRANBERRY WOODS DRIVE CRANBERRY WOODS TOWNSHIP PA 16066 1 Common Stock, no par value 2021-12-14 4 S 0 3446.0000 147.5566 D 714202.0000 I Co-Trustee Common Stock, no par value 2021-12-14 4 S 0 6754.0000 148.2826 D 707448.0000 I Co-Trustee Common Stock, no par value 2021-12-14 4 S 0 8058.0000 146.2142 D 699390.0000 I Co-Trustee Common Stock, no par value 2021-12-14 4 S 0 9242.0000 144.2871 D 690148.0000 I Co-Trustee Common Stock, no par value 985417.0000 D Common Stock, no par value 226897.0000 I By Wife Share price on this transaction ranged from $147.035 to $147.825. Shares held in trusts of which I am a trustee and in which I and members of my immediate family are among the beneficiaries. Share price on this transaction ranged from $148.17 to $148.49. Share price on this transaction ranged from $146.00 to $146.8501. Share price on this transaction ranged from $144.00 to $144.84. Stephanie L. Sciullo, Attorney in fact 2021-12-15