 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 million in aggregate principal amount of 2.500 notes due 2026. The notes will mature on August 1, 2026 and may be redeemed in whole or in part at TSLXs 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 revolv 