{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-22-119143","form_type":"8-K","ticker":"TTEK","cik":"0000831641","company_name":"TETRA TECH INC","filed_at":"2022-11-15T23:59:59+00:00","discovered_at":"2026-05-14T18:03:53.683475+00:00","generated_at":"2026-06-21T19:08:36.999150+00:00","sec_items":["5.02","8.01","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.55,"calibrated_materiality_score":0.55,"confidence":"high","headline":"Tetra Tech appoints Christiana Obiaya to Board, effective Jan 2, 2023","bullets":["Board expands to nine members with Obiaya joining Audit and Strategic Planning & Enterprise Risk Committees.","Obiaya is CFO of Heliogen and former CFO of Bechtel's global Energy business unit.","She brings ~20 years of experience in finance, strategy, and renewable energy project development.","Compensation includes $100K annual retainer, meeting fees, and $150K pro-rated equity award."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-22-119143","json":"https://secwatch.observer/filing/0001104659-22-119143.json","markdown":"https://secwatch.observer/filing/0001104659-22-119143.md","text":"https://secwatch.observer/filing/0001104659-22-119143.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/831641/000110465922119143/0001104659-22-119143-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/831641/000110465922119143/tm2230538d1_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-21T19:08:36.999150+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":"b81d95fe9d","claim":"Christiana Obiaya was appointed as Director at TETRA TECH INC.","evidence_excerpt":"Christiana Obiaya has been appointed to the Board of Directors of the Company (the “Board”), effective January 2, 2023","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/831641/000110465922119143/0001104659-22-119143-index.htm","confidence":1.0,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"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"}