---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-21-096966"
form_type: "8-K"
ticker: "TTEK"
cik: "0000831641"
company_name: "TETRA TECH INC"
filed_at: "2021-07-28T23:59:59+00:00"
generated_at: "2026-06-30T01:55:19.938716+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Tetra Tech Q3 FY2021: record revenue $802M (+13%), EPS $0.95 (+14%), backlog $3.25B

## Summary
- Revenue $802M (+13% Y/Y), net revenue $638M (+14% Y/Y), record quarterly results.
- EPS $0.95 (+14% Y/Y, adjusted +22% Y/Y); record backlog $3.25B, book-to-bill 1.12x.
- Board declared $0.20/share dividend (18% increase) payable Sep 3 to holders of record Aug 20.
- After quarter end, acquired Hoare Lea, a UK sustainable engineering design firm with 900+ employees.
- Repurchased $15M of stock in Q3; $163M remaining under buyback program; fiscal 2021 guidance raised.

## SEC filing metadata
- accession: 0001104659-21-096966
- form_type: 8-K
- ticker: TTEK
- cik: 0000831641
- company_name: TETRA TECH INC
- filed_at: 2021-07-28T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 2.02, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/831641/000110465921096966/0001104659-21-096966-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/831641/000110465921096966/tm2123443d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-21-096966
- JSON: https://secwatch.observer/filing/0001104659-21-096966.json
- Plain text: https://secwatch.observer/filing/0001104659-21-096966.txt

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