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UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington , D.C. 20549 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 Commission File Number 1-16463 Peabody PEABODY ENERGY CORPORATION ( Exact name of registrant as specified in its charter ) Delaware ( State or other jurisdiction of incorporation or organization ) 701 Market Street , St. Louis , Missouri ( Address of principal executive offices ) FORM 10 - K ( Mark One ) Title of Each Class Common Stock , par value $ 0.01 per share ( 314 ) 342-3400 ( Registrant's telephone number , including area code ) Securities Registered Pursuant to Section 12 ( b ) of the Act : Trading Symbol ( s ) BTU Securities Registered Pursuant to Section 12 ( g ) of the Act : None Smaller reporting company Emerging growth company 13-4004153 ( I.R.S. Employer Identification No. ) 63101-1826 ( Zip Code ) Name of Each Exchange on Which Registered New York Stock Exchange 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 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 No 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 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 Aggregate market value of the voting and non - voting common equity held by non - affiliates ( stockholders who are not directors or executive officers ) of the Registrant , calculated using the closing price on June 30 , 2020 : Common Stock , par value $ 0.01 per share , $ 196.3 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 Number of shares outstanding of each of the Registrant's classes of Common Stock , as of February 16 , 2021 : Common Stock , par value $ 0.01 per share , 98,244,140 shares outstanding . DOCUMENTS INCORPORATED BY REFERENCE Portions of the Company's Proxy Statement to be filed with the Securities and Exchange Commission in connection with the Company's 2021 Annual Meeting of Shareholders ( the Company's 2021 Proxy Statement ) are incorporated by reference into Part III hereof . Other documents incorporated by reference in this report are listed in the Exhibit Index of this Form 10 - K .