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X 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 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington , D. C. 20549 FORM 10 - K Transition Report Pursuant to Section 13 or 15 ( d ) of the Securities Exchange Act of 1934 For the transition period from HEXCEL Delaware ( State or Other Jurisdiction of Incorporation or Organization ) Title of each class COMMON STOCK , par value $ 0.01 PREFERRED SHARE PURCHASE RIGHTS Large accelerated filer Non - accelerated filer to Commission File Number 1-8472 Hexcel Corporation ( Exact name of registrant as specified in its charter ) 冈 Two Stamford Plaza 281 Tresser Boulevard , 16th Floor Stamford , Connecticut 06901 ( Address of principal executive offices and zip code ) Registrant's telephone number , including area code : ( 203 ) 969-0666 Securities registered pursuant to Section 12 ( b ) of the Act : Trading Symbol ( s ) 94-1109521 HXL ( I.R.S. Employer Identification No. ) Securities registered pursuant to Section 12 ( g ) of the Act : None No No 区 Yes Indicate by check mark if the registrant is a well - known seasoned issuer , as defined in Rule 405 of the Securities Act . Yes Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15 ( d ) of the Act . 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 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 ( §232.405 of this chapter ) during the preceding 12 months ( or for such shorter period that the registrant was required to submit such files ) . Yes No COMMON STOCK Name of each exchange on which registered NEW YORK STOCK EXCHANGE NEW YORK STOCK EXCHANGE 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 . 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 or new 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 Act ) . Yes No " The aggregate market value of the registrant's common stock held by non - affiliates was $ 3,776,131,636 based on the reported last sale price of common stock on June 30 , 2020 , which is the last business day of the registrant's most recently completed second fiscal quarter . The number of shares outstanding of each of the registrant's classes of common stock , as of the latest practicable date . Class Outstanding as of January 29 , 2021 83,649,842 ooo Documents Incorporated by Reference : Portions of Part III will be incorporated reference to the registrant's definitive proxy statement , in accordance with Instruction G ( 3 ) to Form 10 - K , to be filed with the Securities and Exchange Commission no later than 120 days after the end of the registrant's fiscal year .