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Table of Contents 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 TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 Title of each class Common Stock , par value $ 0.01 per share For the fiscal year ended December 31 , 2020 OR Maryland ( State or other jurisdiction of incorporation or organization ) For the transition period from Large accelerated filer Non - accelerated filer to Commission File No. 000-54899 TCG BDC , INC . ( Exact name of Registrant as specified in its charter ) X One Vanderbilt Avenue , Suite 3400 , New York , NY 10017 ( Address of principal executive office ) ( Zip Code ) ( 212 ) 813-4900 ( Registrant's telephone number , including area code ) 80-0789789 ( I.R.S. Employer Identification Number ) Securities registered pursuant to Section 12 ( b ) of the Act : Trading Symbol ( s ) Name of each exchange on which registered The Nasdaq Global Select Market Yes □ No X Yes ☐ No X Indicate by check mark if the registrant is a well - known seasoned issuer , as defined in Rule 405 of the Securities Act . Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15 ( d ) of the Act . 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 x No □ CGBD Securities registered pursuant to Section 12 ( g ) of the Act : None 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 , or a smaller reporting company . See definitions of " large accelerated filer , " " accelerated filer , " and " smaller reporting company " in Rule 12b - 2 of the Exchange Act . ( Check one ) : Accelerated filer Smaller reporting company If an emerging growth company , indicate by check mark if the registrant has elected not to use the extended transition period 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 report . X Indicate by check mark whether the registrant is a shell company ( as defined in Rule 12b - 2 of the Exchange Act ) . Yes No X The aggregate market value of the registrant's common stock at June 30 , 2020 , based on the closing price of the common stock on that date of $ 8.57 on The Nasdaq Global Select Market , held by those persons deemed by the registrant to be non - affiliates was approximately $ 481,028,221 . The number of shares of the registrant's common stock , $ 0.01 par value per share , outstanding at February 22 , 2021 was 55,048,840 . Documents Incorporated by Reference : Portions of the registrant's Proxy Statement for its 2021 Annual Meeting of Stockholders to be filed not later than 120 days after the end of the fiscal year covered by this Annual Report on Form 10 - K are incorporated by reference into Part III of this Form 10 - K .