{"schema_version":"secwatch.filing_event.v1","accession":"0000936340-25-000241","form_type":"8-K","ticker":"DTE","cik":"0000936340","company_name":"DTE ENERGY CO","filed_at":"2025-12-08T23:59:59+00:00","discovered_at":"2026-05-14T18:02:42.672807+00:00","generated_at":"2026-05-16T14:10:14.958745+00:00","sec_items":["5.02","5.03","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.4,"calibrated_materiality_score":0.4,"confidence":"high","headline":"DTE Energy President and COO Mark Stiers to retire effective Jan 12, 2026","bullets":["Mark W. Stiers, President & COO of DTE Vantage and Energy Trading, notified retirement on Dec 2, 2025.","Stiers will step down from role on Jan 12, 2026, then serve as advisor until March 31, 2026.","Board amended Bylaws to set requirements for shareholder meeting matters and remote communication.","Bylaw changes are procedural; no immediate financial impact expected."],"urls":{"canonical":"https://secwatch.observer/filing/0000936340-25-000241","json":"https://secwatch.observer/filing/0000936340-25-000241.json","markdown":"https://secwatch.observer/filing/0000936340-25-000241.md","text":"https://secwatch.observer/filing/0000936340-25-000241.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/936340/000093634025000241/0000936340-25-000241-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/936340/000093634025000241/dte-20251202.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T14:10:14.958745+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":"81178f4557bd34692bf491ca2c7d86dafa5e0091","claim":"DTE ENERGY CO: Amendments to Bylaws establishing requirements for shareholder business and nominations, clarifying remote meeting authority, and minor corrections (effective 2025-12-03).","evidence_excerpt":"On December 3, 2025, the Board of Directors of the Company adopted amendments to the Bylaws of the Company, effective December 3, 2025, to establish the requirements for shareholders to bring matters of business before the Company's annual shareholder meeting, including nomination of a candidate for the Board of Directors.","evidence_source":"SEC 8-K Item 5.03/5.05/5.06","evidence_url":"https://www.sec.gov/Archives/edgar/data/936340/000093634025000241/0000936340-25-000241-index.htm","confidence":0.9,"family_label":"Governance Changes","details":[{"label":"Change","value":"bylaw amendment"},{"label":"Effective","value":"2025-12-03"}],"fact_type":"governance_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}