Other Information
−Removed: During the three months ended September 30, 2024, no director or officer of the Company, nor the Company itself, adopted or terminated a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,” as each term is defined in Item 408(a) of Regulation S-K.
+Added: During the three months ended March 31, 2025, no director or officer of the Company, nor the Company itself, adopted or terminated a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,” as each term is defined in Item 408(a) of Regulation S-K.
31.1 Certification of Chief Executive Officer pursuant to Rule 13a-14(a)
10 unchanged sentences
MSA SAFETY INCORPORATED
−Removed: October 24, 2024 /s/ Lee B.
−Removed: Senior Vice President and Chief Financial Officer
+Added: April 30, 2025 /s/ Elyse L.
+Added: Interim Chief Financial Officer
/s/ Jonathan D.
1 unchanged sentence
Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.