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UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON , D.C. 20549 FORM 10 - Q ( Mark One ) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED SEPTEMBER 30 , 2021 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 COMMISSION FILE NUMBER : 814-00638 OXFORD SQUARE CAPITAL CORP . ( Exact name of registrant as specified in its charter ) MARYLAND ( State or other jurisdiction of incorporation or organization ) 20-0188736 ( I.R.S. Employer Identification No. ) 8 SOUND SHORE DRIVE , SUITE 255 GREENWICH , CONNECTICUT 06830 ( Address of principal executive office ) ( 203 ) 983-5275 ( Registrant's telephone number , including area code ) Securities registered pursuant to Section 12 ( b ) of the Act : Title of each class Common stock , par value $ 0.01 per share 6.50 % Notes due 2024 6.25 % Notes due 2026 5.50 % Notes due 2028 Trading Symbol ( s ) Name of each exchange on which registered OXSQ NASDAQ Global Select Market LLC OXSQL NASDAQ Global Select Market LLC OXSQZ NASDAQ Global Select Market LLC OXSQG NASDAQ Global Select Market LLC 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 definitions of " large accelerated filer , ” “ accelerated filer , ” “ smaller reporting company , ” and “ emerging growth company ” in Rule 12b - 2 of the Exchange Act . ( Check one ) : Large accelerated filer ☐ Non - accelerated filer | Emerging growth company ☐ 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 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 is a shell company ( as defined in Rule 12b - 2 of the Exchange Act ) . Yes □ No ☑