{"schema_version":"secwatch.filing_event.v1","accession":"0001003078-26-000006","form_type":"8-K","ticker":"MSM","cik":"0001003078","company_name":"MSC INDUSTRIAL DIRECT CO INC","filed_at":"2026-01-05T23:59:59+00:00","discovered_at":"2026-05-14T18:02:34.370927+00:00","generated_at":"2026-05-16T11:36:42.867990+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"MSC Industrial appoints Martina McIsaac CEO & director; Gershwind named Vice Chair","bullets":["McIsaac became President and CEO effective Jan 1, 2026; also elected to board (size increased to 10).","Erik Gershwind, former CEO, appointed Non-Executive Vice Chair of the Board effective same date.","No arrangement or transaction between McIsaac and company requiring disclosure under Item 404.","Previously announced CEO succession now effective; board composition updated."],"urls":{"canonical":"https://secwatch.observer/filing/0001003078-26-000006","json":"https://secwatch.observer/filing/0001003078-26-000006.json","markdown":"https://secwatch.observer/filing/0001003078-26-000006.md","text":"https://secwatch.observer/filing/0001003078-26-000006.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1003078/000100307826000006/0001003078-26-000006-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1003078/000100307826000006/msm-20251231.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T11:36:42.867990+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":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}