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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 PURSUANT TO SECTION item13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From Commission file number : 001-38677 Delaware ( State or other jurisdiction of incorporation or organization ) Ra Medical Systems , Inc. ( Exact name of Registrant as specified in its charter ) 2070 Las Palmas Drive Carlsbad , California ( Address of principal executive offices ) Title of each class Common Stock , $ 0.0001 par value to ( 760 ) 804-1648 ( Registrant's telephone number , including area code ) Securities registered pursuant to Section 12 ( b ) of the Act : Trading Symbol 38-3661826 ( I.R.S. Employer Identification No. ) 92011 ( Zip Code ) 0 Name of the exchange on which registered NYSE American RMED 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 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 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 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 . 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 风 The aggregate market value of the common stock held by non - affiliates of the registrant , based on the closing price of a share of common stock on June 30 , 2020 as reported by the New York Stock Exchange on such date was approximately $ 18.5 million . Shares of the registrant's common stock held by each executive officer , director and other persons who may be deemed an affiliate of the registrant have been excluded in that such persons may be deemed to be affiliates . This calculation does not reflect a determination that certain persons are affiliates of the registrant for any other purpose . As of March 10 , 2021 , the registrant has 3,259,340 shares of common stock , par value $ 0.0001 , outstanding .