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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 TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number : 1-10864 Title of each class Common Stock , $ .01 par value or UNITEDHEALTH GROUP® United Health Group Incorporated ( Exact name of registrant as specified in its charter ) Delaware 41-1321939 ( State or other jurisdiction of incorporation or organization ) United Health Group Center 9900 Bren Road East Large accelerated filer Smaller reporting company Minnetonka , ( Address of principal executive offices ) ( 952 ) 936-1300 ( Registrant's telephone number , including area code ) ( I.R.S. Employer Identification No. ) Minnesota 55343 ( Zip Code ) Securities registered pursuant to Section 12 ( b ) of the Act : Trading Symbol ( s ) Name of each exchange on which registered New York Stock Exchange UNH 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 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 Accelerated filer Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S - T during the preceding 12 months ( or for such shorter period that the registrant was required to submit and post 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 . ( Check one ) Non - accelerated filer 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 Act ) . Yes No The aggregate market value of voting stock held by non - affiliates of the registrant as of June 30 , 2020 was $ 281,771,756,077 ( based on the last reported sale price of $ 294.95 per share on June 30 , 2020 , on the New York Stock Exchange ) , excluding only shares of voting stock held beneficially by directors , executive officers and subsidiaries of the registrant . As of January 29 , 2021 , there were 945,319,404 shares of the registrant's Common Stock , $ .01 par value per share , issued and outstanding . DOCUMENTS INCORPORATED BY REFERENCE The information required by Part III of this report , to the extent not set forth herein , is incorporated by reference from the registrant's definitive proxy statement relating to its 2021 Annual Meeting of Shareholders . Such proxy statement will be filed with the Securities and Exchange Commission within 120 days after the end of the fiscal year to which this report relates .