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0 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON , D.C. 20549 FORM 10 - K Annual Report Pursuant to Section 13 or 15 ( d ) of the Securities Exchange Act of 1934 For the fiscal year ended December 31 , 2020 OR Transition Report Pursuant to Section 13 or 15 ( d ) of the Securities Exchange Act of 1934 to For the transition period from Commission file number 033-90866 WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORPORATION ( Exact name of registrant as specified in its charter ) Delaware ( State or other jurisdiction of incorporation or organization ) 30 Isabella Street Pittsburgh , Pennsylvania 15212 ( Address of principal executive offices , including zip code ) Securities registered pursuant to Section 12 ( b ) of the Act : Class Common Stock , par value $ .01 per share 25-1615902 ( IRS Employer Identification No. ) ( 412 ) 825-1000 ( Registrant's telephone number ) Trading Symbol WAB Yes No " . No ý . Securities registered pursuant to Section 12 ( g ) of the Act : None Indicate by check mark if the registrant is a well - known seasoned issuer , as defined in Rule 405 of the Securities Act . Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15 ( d ) of the Act . Yes 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 ( or for such shorter period that the registrant was required to file such reports ) and ( 2 ) has been subject to such filing requirements for the past 90 days . Yes ý No □ . X Accelerated filer Name of Exchange on which registered New York Stock Exchange 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 and post such files ) Yes ý No. Non - accelerated filer Indicate by check mark whether the registrant is a large accelerated filer , an accelerated filer , a non - accelerated filer , a 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 Emerging growth company Smaller reporting 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 has filed a report on and attestation to its management's assessment of the effectiveness of its internal control over financial reporting under Section 404 ( b ) of the Sarbanes - Oxley Act ( 15 U.S.C. 7262 ( b ) ) by the registered public accounting firm that prepared or issued its audit report . Indicate by check mark whether the registrant is a shell company ( as defined in Rule 12b - 2 of the Exchange Act ) . Yes No ý . The registrant estimates that as of June 30 , 2020 , the aggregate market value of the voting shares held by non - affiliates of the registrant was approximately $ 10.5 billion based on the closing price on the New York Stock Exchange for such stock . As of February 12 , 2021 , 188,896,023 shares of Common Stock of the registrant were issued and outstanding . DOCUMENTS INCORPORATED BY REFERENCE : Portions of the Proxy Statement for the registrant's Annual Meeting of Stockholders to be held on May 19 , 2021 are incorporated by reference into Part III of this Form 10 - K .