NEW YORK--(BUSINESS WIRE)--Sixth Street Specialty Lending, Inc. (NYSE:TSLX) ("TSLX†or the "Company†) announced today that it has priced an underwritten public offering of $300.0 million in aggregate principal amount of 5.650% notes due 2031. The notes will mature on August 15, 2031 and may be redeemed in whole or in part at TSLX's option at any time at par plus a "make-whole†premium, if applicable. TSLX expects to use the net proceeds of the offering to pay down outstanding debt under its rev. ...