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Table of Contents ( Mark One ) > No UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington , D.C. 20549 FORM 10 - K > No ANNUAL REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended September 30 , 2021 TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from or Delaware ( State or other jurisdiction of incorporation or organization ) Commission file number 001-33288 HAYNES INTERNATIONAL , INC . ( Exact name of registrant as specified in its charter ) 1020 West Park Avenue , Kokomo , Indiana ( Address of principal executive offices ) to Securities registered pursuant to Section 12 ( b ) of the Act : 06-1185400 ( I.R.S. Employer Identification No. ) 46904-9013 ( Zip Code ) Registrant's telephone number , including area code ( 765 ) 456-6000 Title of each class Trading Symbol HAYN Common Stock , par value $ .001 per share 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 Name of each exchange on which registered NASDAQ Global Market 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 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 . X 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 ) . X 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 > Non - accelerated filer Smaller reporting Company Emerging growth company 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 . Yes ☐No 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 Act ) . Yes > No As of March 31 , 2021 , the aggregate market value of the registrant's common stock held by non - affiliates of the registrant was $ 264,030,452 based on the closing sale price as reported on the NASDAQ Global Market . Shares of common stock held by each executive officer and director and by each person who owns 10 % or more of the outstanding common stock have been excluded in that such persons may be deemed to be affiliates . This determination of affiliate status is not necessarily a conclusive determination for other purposes . 12,565,790 shares of Haynes International , Inc. common stock were outstanding as of November 18 , 2021 . DOCUMENTS INCORPORATED BY REFERENCE Portions of the registrant's Proxy Statement to be delivered to stockholders in connection with the 2022 Annual Meeting of Stockholders have been incorporated by reference into Part III of this report .