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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 year ended December 31 , 2020 TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission file number : 001-38211 Delaware ( State or other jurisdiction of incorporation or organization ) Title of each class Class A Common Stock , $ 0.0001 par value or ROKU , INC . ( Exact name of Registrant as specified in its charter ) Large accelerated filer Non - accelerated filer 4841 ( Primary standard industrial code number ) 1155 Coleman Avenue San Jose , California 95110 ( 408 ) 556-9040 ( Address , including zip code , and telephone number , including area code , of Registrant's principal executive offices ) Securities registered pursuant to Section 12 ( b ) of the Act : Trading Symbol ( s ) ROKU П 26-2087865 Securities registered pursuant to Section 12 ( g ) of the Act : None ( I.R.S. employer identification no . ) 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 Name of each exchange on which registered The Nasdaq Global Select Market 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 ☐ ☐ 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 . Yes No Indicate by check mark whether the registrant is a shell company ( as defined in Rule 12b - 2 of the Act ) . Yes No As of June 30 , 2020 , the aggregate market value of voting stock held by non - affiliates of the registrant , based upon the closing sales price for the registrant's common stock , as reported in the Nasdaq Global Select Market System , was $ 12,291,076,562 . Shares of common stock beneficially owned by each executive officer and director of the Registrant and by each person known by the Registrant to beneficially own 10 % or more of the outstanding common stock have been excluded in that such persons may be deemed to be affiliates . This determination of affiliate status is not necessarily a conclusive determination for any other purpose . As of January 31 , 2021 , the registrant had 111,081,169 shares of Class A common stock , $ 0.0001 par value per share and 17,340,776 shares of Class B common stock , $ 0.0001 par value per share . DOCUMENTS INCORPORATED BY REFERENCE Part III incorporates by reference certain information from the Registrant's definitive proxy statement ( the “ 2020 Proxy Statement " ) for the 2021 Annual Meeting of Stockholders . The 2020 Proxy Statement will be filed with the Securities and Exchange Commission within 120 days of the registrant's fiscal year ended December 31 , 2020 .