{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-25-096738","form_type":"8-K","ticker":"GTE","cik":"0001273441","company_name":"GRAN TIERRA ENERGY INC.","filed_at":"2025-10-03T23:59:59+00:00","discovered_at":"2026-05-14T18:02:39.008269+00:00","generated_at":"2026-05-17T04:42:36.860518+00:00","sec_items":["5.02","7.01","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.35,"calibrated_materiality_score":0.35,"confidence":"high","headline":"Gran Tierra appoints Brad Virbitsky as independent director; Equinox partner owns 14.4%","bullets":["Brad Virbitsky appointed to Board effective Sept 30, 2025; serves on HSE & Reserves Committees.","Virbitsky is Partner & Portfolio Manager at Equinox Partners, which owns ~14.4% of Gran Tierra shares.","Compensated under standard non-employee director program; indemnity agreement entered into.","Virbitsky has energy-sector expertise; previously on Crew Energy board during Tourmaline sale at 70% premium.","No family relationships or material transactions with Gran Tierra officers or directors."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-25-096738","json":"https://secwatch.observer/filing/0001104659-25-096738.json","markdown":"https://secwatch.observer/filing/0001104659-25-096738.md","text":"https://secwatch.observer/filing/0001104659-25-096738.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1273441/000110465925096738/0001104659-25-096738-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1273441/000110465925096738/tm2528004d1_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T04:42:36.860518+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"}