---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-21-123937"
form_type: "8-K"
ticker: "TTEK"
cik: "0000831641"
company_name: "TETRA TECH INC"
filed_at: "2021-10-07T23:59:59+00:00"
generated_at: "2026-06-28T22:24:33.856541+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Tetra Tech authorizes additional $400M share repurchase program, total $563M available

## Summary
- Board authorized $400M share repurchase program, doubling previous authorization; total $563M available.
- In last 12 months, generated $294M operating cash flow; returned $98M to shareholders via buybacks and dividends.
- Net debt leverage ratio was 0.1x at end of Q3 2021, reflecting continued deleveraging.
- Completed five strategic acquisitions in last 12 months, adding technical capabilities and geographic presence.

## SEC filing metadata
- accession: 0001104659-21-123937
- form_type: 8-K
- ticker: TTEK
- cik: 0000831641
- company_name: TETRA TECH INC
- filed_at: 2021-10-07T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/831641/000110465921123937/0001104659-21-123937-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/831641/000110465921123937/tm2129431d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-21-123937
- JSON: https://secwatch.observer/filing/0001104659-21-123937.json
- Plain text: https://secwatch.observer/filing/0001104659-21-123937.txt

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