---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-26-106564"
form_type: "8-K"
ticker: "TTEK"
cik: "0000831641"
company_name: "TETRA TECH INC"
filed_at: "2026-09-10T13:00:41+00:00"
generated_at: "2026-09-10T13:02:04.229967+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Tetra Tech boosts share repurchase authorization by $500M to $898M total

## Summary
- Board authorized $500M increase to buyback program; total available repurchases now $898M.
- Twelve months ended Q3 FY2026: $567M cash flow from operations; $322M returned to shareholders via buybacks and dividends.
- Net debt leverage ratio 0.88x at end of Q3 FY2026; company continues deleveraging.
- CEO Roger Argus cites confidence in long-term growth and balanced capital allocation.

## SEC filing metadata
- accession: 0001104659-26-106564
- form_type: 8-K
- ticker: TTEK
- cik: 0000831641
- company_name: TETRA TECH INC
- filed_at: 2026-09-10T13:00:41+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/831641/000110465926106564/0001104659-26-106564-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/831641/000110465926106564/tm2625143d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-26-106564
- JSON: https://secwatch.observer/filing/0001104659-26-106564.json
- Plain text: https://secwatch.observer/filing/0001104659-26-106564.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.