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UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington , D.C. 20549 FORM 10 - Q × QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarter ended September 30 , 2021 or □ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File No. 1-15579 MSA The Safety Company MSA SAFETY INCORPORATED ( Exact name of registrant as specified in its charter ) Pennsylvania ( State or other jurisdiction of incorporation or organization ) 1000 Cranberry Woods Drive Cranberry Township , Pennsylvania ( Address of principal executive offices ) 46-4914539 ( IRS Employer Identification No. ) 16066-5207 ( Zip Code ) Registrant's telephone number , including area code : ( 724 ) 776-8600 Former name or former address , if changed since last report : N / A Indicate by check mark whether the registrant ( 1 ) has filed all reports required to be filed by Section 13 or 15 ( d ) of the Securities Exchange Act of 1934 during the preceding 12 months and ( 2 ) has been subject to such filing requirements for the past 90 days . Yes x No Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S - T during the preceding 12 months ( or for such shorter period that the registrant was required to submit such files ) . Yes x No Indicate by check mark whether the registrant is a large accelerated filer , an accelerated filer , a non - accelerated filer , smaller reporting company , or an emerging growth company . See the definitions of " large accelerated filer , " " accelerated filer , ” “ smaller reporting company , ” and “ emerging growth company " in Rule 12b - 2 of the Exchange Act . Large Accelerated Filer X Accelerated filer Non - accelerated filer Smaller reporting company Emerging growth company ☐ ☐ If an emerging growth company , indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13 ( a ) of the Exchange Act . " Indicate by check mark whether the registrant is a shell company ( as defined in Rule 12b - 2 of the Exchange Act ) . Yes No x Securities registered pursuant to Section 12 ( b ) of the Act : Title of each class Common Stock , no par value Trading Symbol ( s ) MSA Name of each exchange on which is registered New York Stock Exchange As of October 22 , 2021 , 39,207,411 shares of common stock , of the registrant were outstanding .