{"schema_version":"secwatch.filing_event.v1","accession":"0001621434-25-000136","form_type":"8-K","ticker":"BSM","cik":"0001621434","company_name":"Black Stone Minerals, L.P.","filed_at":"2025-11-05T23:59:59+00:00","discovered_at":"2026-05-14T18:02:39.948327+00:00","generated_at":"2026-05-17T00:18:14.244280+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.75,"calibrated_materiality_score":0.75,"confidence":"high","headline":"BSM CEO to become Executive Chairman; co-CEOs appointed in succession plan","bullets":["Thomas L. Carter, Jr. transitions to Executive Chairman on Jan 1, 2026; current Chair, CEO, Pres.","Fowler Carter and Taylor DeWalch appointed co-CEOs and to Board effective Jan 1, 2026.","Chris Bonner promoted to SVP, CFO, Treasurer; Erin Phillips becomes Controller and principal accounting officer.","William Mathis resigned from Board on Oct 30, 2025; no disagreement.","Fowler Carter is son of Thomas Carter; Taylor DeWalch is son of director Mark DeWalch (related parties)."],"urls":{"canonical":"https://secwatch.observer/filing/0001621434-25-000136","json":"https://secwatch.observer/filing/0001621434-25-000136.json","markdown":"https://secwatch.observer/filing/0001621434-25-000136.md","text":"https://secwatch.observer/filing/0001621434-25-000136.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1621434/000162143425000136/0001621434-25-000136-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1621434/000162143425000136/bsm-20251030.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T00:18:14.244280+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"}