{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-24-008558","form_type":"8-K","ticker":"TSLX","cik":"0001508655","company_name":"Sixth Street Specialty Lending, Inc.","filed_at":"2024-01-16T23:59:59+00:00","discovered_at":"2026-05-14T18:03:24.419211+00:00","generated_at":"2026-06-06T23:07:47.658647+00:00","sec_items":["1.01","2.03","8.01","9.01"],"event_type":"debt","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"Sixth Street Specialty Lending issues $350M of 6.125% notes due 2029","bullets":["$350M aggregate principal of 6.125% notes due March 1, 2029; interest payable semiannually.","Notes are direct unsecured obligations; net proceeds to repay revolving credit facility.","Change-of-control repurchase event triggers offer at 100% principal plus accrued interest.","Offering closed January 16, 2024; underwriting agreement with BofA Securities as representative."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-24-008558","json":"https://secwatch.observer/filing/0001193125-24-008558.json","markdown":"https://secwatch.observer/filing/0001193125-24-008558.md","text":"https://secwatch.observer/filing/0001193125-24-008558.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1508655/000119312524008558/0001193125-24-008558-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1508655/000119312524008558/d652899d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-06T23:07:47.658647+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":"e5c2d841ae8f572393be3c630d9c0ecd8e3a2bfd","claim":"Sixth Street Specialty Lending, Inc. incurred senior notes of $350,000,000 with U.S. Bank Trust Company, National Association at 6.125% per year maturing March 1, 2029.","evidence_excerpt":"On January 16, 2024, Sixth Street Specialty Lending, Inc. (the “Company”) and U.S. Bank Trust Company, National Association (the “Trustee”), entered into a First Supplemental Indenture (the “First Supplemental Indenture”) to the Indenture, dated as of January 16, 2024, between the Company and the Trustee (the “Base Indenture”; and together with the First Supplemental Indenture, the “Indenture”), relating to the Company’s issuance, offer and sale of $ 350,000,000 aggregate principal amount of its 6.125% notes due 2029 (the “Notes”).","evidence_source":"SEC 8-K Item 2.03/2.04","evidence_url":"https://www.sec.gov/Archives/edgar/data/1508655/000119312524008558/0001193125-24-008558-index.htm","confidence":0.98,"family_label":"Debt Financings","details":[{"label":"Instrument","value":"senior notes"},{"label":"Principal","value":"$350,000,000"},{"label":"Counterparty","value":"U.S. Bank Trust Company, National Association"},{"label":"Rate","value":"6.125% per year"},{"label":"Maturity","value":"March 1, 2029"},{"label":"Event","value":"incurrence"}],"fact_type":"debt_financing"},{"claim_id":"5b485247b1a461dbb09d74de914cf911301e3550","claim":"Sixth Street Specialty Lending, Inc. entered into First Supplemental Indenture with U.S. Bank Trust Company, National Association valued at $350,000,000 (effective 2024-01-16).","evidence_excerpt":"On January 16, 2024, Sixth Street Specialty Lending, Inc. (the “Company”) and U.S. Bank Trust Company, National Association (the “Trustee”), entered into a First Supplemental Indenture (the “First Supplemental Indenture”) to the Indenture, dated as of January 16, 2024, between the Company and the Trustee (the “Base Indenture”; and together with the First Supplemental Indenture, the “Indenture”), relating to the Company’s issuance, offer and sale of $ 350,000,000 aggregate principal amount of its 6.125% notes due 2029 (the “Notes”).","evidence_source":"SEC 8-K Item 1.01/1.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1508655/000119312524008558/0001193125-24-008558-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":"$350,000,000"},{"label":"Effective","value":"2024-01-16"}],"fact_type":"material_agreement"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}