{"schema_version":"secwatch.filing_event.v1","accession":"0001213900-26-070092","form_type":"8-K","ticker":"BXSL","cik":"0001736035","company_name":"Blackstone Secured Lending Fund","filed_at":"2026-06-18T20:05:11+00:00","discovered_at":"2026-06-18T20:06:00.319352+00:00","generated_at":"2026-06-18T20:11:39.005550+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"Blackstone Secured Lending Fund COO Katherine Rubenstein departs effective June 15, 2026","bullets":["Katherine Rubenstein left her role as Chief Operating Officer on June 15, 2026, to pursue other opportunities.","Departure was not due to any disagreement with the Fund's operations, policies, or practices.","Blackstone Credit & Insurance thanked Ms. Rubenstein for her contributions."],"urls":{"canonical":"https://secwatch.observer/filing/0001213900-26-070092","json":"https://secwatch.observer/filing/0001213900-26-070092.json","markdown":"https://secwatch.observer/filing/0001213900-26-070092.md","text":"https://secwatch.observer/filing/0001213900-26-070092.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1736035/000121390026070092/0001213900-26-070092-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1736035/000121390026070092/ea029494501-8k_blackstone.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-18T20:11:39.005550+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":"938e704dd7","claim":"Katherine Rubenstein departed as Chief Operating Officer at Blackstone Secured Lending Fund.","evidence_excerpt":"On June 15, 2026, Katherine Rubenstein departed her role as Blackstone Secured Lending Fund’s (the “Fund”) Chief Operating Officer to pursue other opportunities.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1736035/000121390026070092/0001213900-26-070092-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"departed"},{"label":"Role","value":"Chief Operating Officer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}