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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 December 31 , 2020 -OR- TRANSITION REPORT FILED PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 Delaware Commission file number 1-12291 aes THE AES CORPORATION ( Exact name of registrant as specified in its charter ) ( State or other jurisdiction of incorporation or organization ) 4300 Wilson Boulevard Arlington , Virginia ( Address of principal executive offices ) 54-1163725 ( I.R.S. Employer Identification No. ) 22203 ( Zip Code ) ☑ ☐ Registrant's telephone number , including area code : ( 703 ) 522-1315 Securities registered pursuant to Section 12 ( b ) of the Act : Title of Each Class Common Stock , par value $ 0.01 per share Trading Symbol ( s ) AES Name of Each Exchange on Which Registered New York Stock Exchange No ☐ No ☑ 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 ☑ 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 ☐ 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 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 ☑ The aggregate market value of the voting and non - voting common equity held by non - affiliates on June 30 , 2020 , the last business day of the Registrant's most recently completed second fiscal quarter ( based on the adjusted closing sale price of $ 14.16 of the Registrant's Common Stock , as reported by the New York Stock Exchange on such date ) was approximately $ 9.42 billion . The number of shares outstanding of Registrant's Common Stock , par value $ 0.01 per share , on February 22 , 2021 was 665,479,845 . DOCUMENTS INCORPORATED BY REFERENCE Portions of Registrant's Proxy Statement for its 2021 annual meeting of stockholders are incorporated by reference in Parts II and III