{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-26-029582","form_type":"8-K","ticker":"GTE","cik":"0001273441","company_name":"GRAN TIERRA ENERGY INC.","filed_at":"2026-03-17T23:59:59+00:00","discovered_at":"2026-05-14T18:02:34.685983+00:00","generated_at":"2026-05-15T10:09:04.675973+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"negative","materiality_score":0.85,"calibrated_materiality_score":0.85,"confidence":"high","headline":"Four Gran Tierra directors resign over Audit Committee investigation dispute","bullets":["Evan Hazell, Sondra Scott, David Smith, Brad Virbitsky resigned effective March 11-12, 2026.","Resignations due to disagreement with Audit Committee's handling of an anonymous complaint investigation.","Board size reduced from 9 to 5 directors following the resignations.","Audit Committee will continue investigation with external counsel; complaint does not allege fraud or financial misstatement."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-26-029582","json":"https://secwatch.observer/filing/0001104659-26-029582.json","markdown":"https://secwatch.observer/filing/0001104659-26-029582.md","text":"https://secwatch.observer/filing/0001104659-26-029582.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1273441/000110465926029582/0001104659-26-029582-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1273441/000110465926029582/tm269027d1_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-15T10:09:04.675973+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"}