{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-26-035179","form_type":"8-K","ticker":"TTEK","cik":"0000831641","company_name":"TETRA TECH INC","filed_at":"2026-03-26T23:59:59+00:00","discovered_at":"2026-05-14T18:02:37.797134+00:00","generated_at":"2026-05-15T08:56:41.012568+00:00","sec_items":["5.02","8.01","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.3,"calibrated_materiality_score":0.3,"confidence":"high","headline":"Tetra Tech appoints Eric W. Thornburg to Board of Directors; effective March 30, 2026","bullets":["Thornburg to serve on Compensation Committee and Nominating and Corporate Governance Committee.","Board expands to eight members; Thornburg recently retired as CEO of H20 America (formerly SJW Group).","Annual non-employee director compensation: $110,000 retainer, $2,000 per meeting over eight, $175,000 equity award (60% PSUs, 40% RSUs) prorated.","Thornburg brings over 40 years of water industry leadership, including CEO roles at Connecticut Water Service and American Water Works."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-26-035179","json":"https://secwatch.observer/filing/0001104659-26-035179.json","markdown":"https://secwatch.observer/filing/0001104659-26-035179.md","text":"https://secwatch.observer/filing/0001104659-26-035179.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/831641/000110465926035179/0001104659-26-035179-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/831641/000110465926035179/tm269832d1_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-15T08:56:41.012568+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"}