{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-26-224000","form_type":"8-K","ticker":"TSLX","cik":"0001508655","company_name":"Sixth Street Specialty Lending, Inc.","filed_at":"2026-05-14T20:08:13+00:00","discovered_at":"2026-05-14T20:10:11.182821+00:00","generated_at":"2026-05-14T20:58:40.705725+00:00","sec_items":["1.01","2.03","8.01","9.01"],"event_type":"debt","sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"Sixth Street Specialty Lending issues $300M of 5.650% notes due 2031","bullets":["Issued $300M aggregate principal of 5.650% notes maturing August 15, 2031.","Interest payable semiannually at 5.650%, first payment February 15, 2027.","Notes are unsecured; redeemable at company's option at specified prices.","Net proceeds to repay revolving credit facility and for general corporate purposes.","Offering closed May 14, 2026; underwritten by BofA Securities and others."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-26-224000","json":"https://secwatch.observer/filing/0001193125-26-224000.json","markdown":"https://secwatch.observer/filing/0001193125-26-224000.md","text":"https://secwatch.observer/filing/0001193125-26-224000.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1508655/000119312526224000/0001193125-26-224000-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1508655/000119312526224000/d553028d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-14T20:58:40.705725+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[{"claim_id":"1a7eeb7ff017923d0843316ffe4f21992caa9488","claim":"Sixth Street Specialty Lending, Inc. incurred senior notes of $300,000,000 aggregate principal amount with U.S. Bank Trust Company, National Association at 5.650% maturing August 15, 2031.","evidence_excerpt":"the Company and the Trustee (the “Base Indenture”; and together with the Third Supplemental Indenture, the “Indenture”), relating to the Company’s issuance, offer and sale of $ 300,000,000 aggregate principal amount of its 5.650% notes due 2031 (the “Notes”). The Notes will mature on August 15, 2031 and may be redeemed in whole or in part at the Company’s option at","evidence_source":"SEC 8-K Item 2.03/2.04","evidence_url":"https://www.sec.gov/Archives/edgar/data/1508655/000119312526224000/0001193125-26-224000-index.htm","confidence":0.9,"family_label":"Debt Financings","details":[{"label":"Instrument","value":"senior notes"},{"label":"Principal","value":"$300,000,000 aggregate principal amount"},{"label":"Counterparty","value":"U.S. Bank Trust Company, National Association"},{"label":"Rate","value":"5.650%"},{"label":"Maturity","value":"August 15, 2031"},{"label":"Event","value":"incurrence"}],"fact_type":"debt_financing"},{"claim_id":"572aebe04df27adf88e38faf63db41ecf3d0be85","claim":"Sixth Street Specialty Lending, Inc. entered into Third Supplemental Indenture with U.S. Bank Trust Company, National Association valued at $300,000,000 aggregate principal amount (effective 2026-05-14).","evidence_excerpt":"On May 14, 2026, Sixth Street Specialty Lending, Inc. (the “Company”) and U.S. Bank Trust Company, National Association (the “Trustee”), entered into a Third Supplemental Indenture (the “Third Supplemental Indenture”)","evidence_source":"SEC 8-K Item 1.01/1.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1508655/000119312526224000/0001193125-26-224000-index.htm","confidence":0.9,"family_label":"Material Agreements","details":[{"label":"Action","value":"entry"},{"label":"Agreement","value":"notes offering"},{"label":"Counterparty","value":"U.S. Bank Trust Company, National Association"},{"label":"Value","value":"$300,000,000 aggregate principal amount"},{"label":"Effective","value":"2026-05-14"}],"fact_type":"material_agreement"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}