UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission file number 814-00998 Goldman Sachs BDC, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 46-2176593 (State or Other Jurisdiction of (I.R.S. Employer Incorporation or Or ...