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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 for the Transition Period from to FORM 10 - K Title of Each Class Common Stock MERCURY GENERAL CORPORATION ( Exact name of registrant as specified in its charter ) Commission File No. 001-12257 California ( State or other jurisdiction of incorporation or organization ) 4484 Wilshire Boulevard Los Angeles , California ( Address of principal executive offices ) Large accelerated filer Non - accelerated filer Emerging growth company 95-2211612 ( I.R.S. Employer Identification No. ) Registrant's telephone number , including area code : ( 323 ) 937-1060 90010 ( Zip Code ) Trading Symbol ( s ) MCY □□□ Securities registered pursuant to Section 12 ( b ) of the Act : 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 No Securities registered pursuant to Section 12 ( g ) of the Act : None 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 X 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 . Accelerated filer Smaller reporting company 00