{"schema_version":"secwatch.filing_event.v1","accession":"0001637880-26-000042","form_type":"8-K","ticker":null,"cik":"0001637880","company_name":"Tri-State Generation & Transmission Association, Inc.","filed_at":"2026-09-15T16:29:53+00:00","discovered_at":"2026-09-15T16:30:32.331361+00:00","generated_at":"2026-09-15T16:30:41.680024+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.2,"calibrated_materiality_score":0.2,"confidence":"high","headline":"Tri-State board loses two directors: Lucas Bear deceased, Robert Brockman ineligible","bullets":["Lucas Bear, NRPPD's director on Tri-State's board, died unexpectedly on September 11, 2026.","Robert Brockman, Wheatland's director, stepped down from Wheatland's board on Sept 14, 2026; no longer eligible per bylaws.","Neither NRPPD nor Wheatland has yet named a replacement for Tri-State's board."],"urls":{"canonical":"https://secwatch.observer/filing/0001637880-26-000042","json":"https://secwatch.observer/filing/0001637880-26-000042.json","markdown":"https://secwatch.observer/filing/0001637880-26-000042.md","text":"https://secwatch.observer/filing/0001637880-26-000042.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1637880/000163788026000042/0001637880-26-000042-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1637880/000163788026000042/tris-20260911.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-09-15T16:30:41.680024+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":"105ab96131","claim":"Robert Brockman departed as Director at Tri-State Generation & Transmission Association, Inc..","evidence_excerpt":"On September 14, 2026, Tri-State received notification that Robert Brockman, the director representing Wheatland Rural Electric Association (“Wheatland”) on Tri-State’s Board of D irectors, has stepped down from Wheatland’s board of directors.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1637880/000163788026000042/0001637880-26-000042-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"stepped down"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"},{"claim_id":"544022a675","claim":"Lucas Bear departed as Director at Tri-State Generation & Transmission Association, Inc..","evidence_excerpt":"On September 11, 2026, Tri-State received the tragic news that Lucas Bear , the director representing Northwest Rural Public Power District (“NRPPD”) on Tri-State’s Board of D irectors, unexpectedly passed away.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1637880/000163788026000042/0001637880-26-000042-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"passed away"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}