{"filing":{"accession_number":"0001637880-26-000042","cik":"0001637880","ticker":null,"company_name":"Tri-State Generation \u0026 Transmission Association, Inc.","form":"8-K","filing_date":"2026-09-15","report_date":"2026-09-11","primary_document":"tris-20260911.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1637880/000163788026000042/tris-20260911.htm"},"events":[{"id":33570,"run_id":30870,"accession_number":"0001637880-26-000042","anchor_item_number":"5.02","event_type":"exec_departure","event_domain":"governance","is_material":true,"confidence":0.95,"summary":"The filing discloses two director departures: Lucas Bear's death on September 11, 2026, and Robert Brockman's automatic removal from Tri-State's board on September 14, 2026, due to his stepping down from Wheatland's board, which triggered ineligibility under Tri-State's Bylaws. Both are departures of directors from the board, making this a material governance event affecting board composition.","company_name":"Tri-State Generation \u0026 Transmission Association, Inc.","ticker":null,"filing_date":"2026-09-15","form":"8-K","submitted_at":null,"items":[{"id":37049,"accession_number":"0001637880-26-000042","item_number":"5.02","item_title":"Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.","event_type":"exec_departure","event_domain":"governance","is_material":true,"confidence":0.95,"reasoning":"The filing discloses two director departures: Lucas Bear's death on September 11, 2026, and Robert Brockman's automatic removal from Tri-State's board on September 14, 2026, due to his stepping down from Wheatland's board, which triggered ineligibility under Tri-State's Bylaws. Both are departures of directors from the board, making this a material governance event affecting board composition.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-09-15T16:31:39.408116+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":37049,"accession_number":"0001637880-26-000042","item_number":"5.02","item_title":"Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.","event_type":"exec_departure","event_domain":"governance","is_material":true,"confidence":0.95,"reasoning":"The filing discloses two director departures: Lucas Bear's death on September 11, 2026, and Robert Brockman's automatic removal from Tri-State's board on September 14, 2026, due to his stepping down from Wheatland's board, which triggered ineligibility under Tri-State's Bylaws. Both are departures of directors from the board, making this a material governance event affecting board composition.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-09-15T16:31:39.408116+00:00","company_name":"Tri-State Generation \u0026 Transmission Association, Inc.","ticker":null,"filing_date":"2026-09-15"}]}