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UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington , DC 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 September 30 , 2021 or TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number : 001-38289 AVAYA HOLDINGS CORP . ( Exact name of registrant as specified in its charter ) Delaware ( State or other jurisdiction of incorporation or organization ) 2605 Meridian Parkway , Suite 200 Durham , North Carolina ( Address of Principal executive offices ) Title of Each Class Common Stock 26-1119726 ( I.R.S. Employer Identification No. ) Registrant's telephone number , including area code : ( 908 ) 953-6000 Securities registered pursuant to Section 12 ( b ) of the Act : Trading Symbol ( s ) . AVYA 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 . Yes No Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15 ( d ) of the Act . Yes No X 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 27713 ( Zip Code ) Non - accelerated filer Name of Each 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 ( §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 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 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 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 The aggregate market value of the registrant's Common Stock held by non - affiliates on March 31 , 2021 , the last business day of the registrant's most recently completed second quarter , was $ 2,338 million . Indicate by check mark whether the registrant has filed all documents and reports required to be filed by Section 12 , 13 or 15 ( d ) of the Securities Exchange Act of 1934 subsequent to the distribution of securities under a plan confirmed by a court . Yes No As of October 31 , 2021 , 84,115,602 shares of Common Stock , $ .01 par value , of the registrant were outstanding . DOCUMENTS INCORPORATED BY REFERENCE Part III of this Annual Report on Form 10 - K will be incorporated by reference from certain portions of the registrant's definitive proxy statement for its 2022 Annual General Meeting of Stockholders , or will be included in an amendment hereto , to be filed with the Securities and Exchange Commission not later than 120 days after the close of the registrant's fiscal year ended September 30 , 2021 .