{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-22-187202","form_type":"8-K","ticker":"TSLX","cik":"0001508655","company_name":"Sixth Street Specialty Lending, Inc.","filed_at":"2022-07-01T23:59:59+00:00","discovered_at":"2026-05-14T18:03:55.970721+00:00","generated_at":"2026-06-24T21:40:14.443301+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.3,"calibrated_materiality_score":0.3,"confidence":"high","headline":"Sixth Street Specialty Lending appoints Anton Brett as Chief Compliance Officer; Ian Simmonds remains CFO","bullets":["Ian Simmonds stepped down as Chief Compliance Officer effective June 30, 2022, but continues as CFO.","Anton Brett appointed Chief Compliance Officer and Secretary, effective June 30, 2022.","Brett is a Vice President at Sixth Street; prior roles include Scopia Capital and law firms Willkie Farr & Gallagher and Kobre & Kim."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-22-187202","json":"https://secwatch.observer/filing/0001193125-22-187202.json","markdown":"https://secwatch.observer/filing/0001193125-22-187202.md","text":"https://secwatch.observer/filing/0001193125-22-187202.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1508655/000119312522187202/0001193125-22-187202-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1508655/000119312522187202/d376461d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-24T21:40:14.443301+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":"3006c385a5","claim":"Anton Brett was appointed as Chief Compliance Officer and Secretary at Sixth Street Specialty Lending, Inc..","evidence_excerpt":"Anton Brett was appointed by the Board of the Company to the position of Chief Compliance Officer and Secretary of the Company","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1508655/000119312522187202/0001193125-22-187202-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Chief Compliance Officer and Secretary"}],"fact_type":"executive_change"},{"claim_id":"877f9ca026","claim":"Ian Simmonds changed role as Chief Compliance Officer at Sixth Street Specialty Lending, Inc..","evidence_excerpt":"Ian Simmonds would step down from his position as Chief Compliance Officer of the Company","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1508655/000119312522187202/0001193125-22-187202-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"stepped down"},{"label":"Role","value":"Chief Compliance Officer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}