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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 EAGLE MATERIALS INC . ( Exact name of registrant as specified in its charter ) Delaware ( State of Incorporation ) 75-2520779 ( I.R.S. Employer Identification No. ) 5960 Berkshire Lane , Suite 900 , Dallas , Texas 75225 ( Address of principal executive offices ) ( 214 ) 432-2000 ( Registrant's telephone number ) Securities registered pursuant to Section 12 ( b ) of the Act : March 31 , 2021 Commission File No. 1-12984 Title of each class Common Stock ( par value $ .01 per share ) Trading Symbol ( s ) EXP Securities registered pursuant to Section 12 ( g ) of the Act : None ■ NO NO É 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 . 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 > NO 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 emerging growth company . See definition of " large accelerated filer , " " accelerated filer , " " smaller reporting company , " and " emerging growth company " in Rule 12b - 2 of the Exchange Act . Large accelerated filer Non - 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 . Common Stock , $ .01 Par Value 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 . NO É Indicate by check mark whether the registrant is a shell company ( as defined in Rule 12b - 2 of the Act ) . YES □ The aggregate market value of the voting stock held by nonaffiliates of the Company at September 30 , 2020 ( the last business day of the registrant's most recently completed second fiscal quarter ) was approximately $ 3.6 billion . As of May 18 , 2021 , the number of outstanding shares of common stock was : Class Outstanding Shares 42,380,309 DOCUMENTS INCORPORATED BY REFERENCE Portions of the Proxy Statement for the Annual Meeting of Stockholders of Eagle Materials Inc. to be held on August 3 , 2021 are incorporated by reference in Part III of this Report .