secwatch.observer — SEC 8-K summary
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Issuer:     TETRA TECH INC (TTEK)
CIK:        0000831641
Form:       8-K
Filed at:   2025-10-07T23:59:59+00:00
Accession:  0001104659-25-097567
Event type: leadership
Sentiment:  neutral
Materiality: 0.55
Item codes: 5.02, 8.01, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

Tetra Tech promotes Roger R. Argus to President, Jonathan S. Weiss to lead CIG
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- Roger R. Argus promoted to President, reporting to CEO Dan Batrack; previously EVP Corporate Development and President CIG.
- Jonathan S. Weiss appointed President of Commercial/International Services Group (CIG), effective immediately.
- Both appointments are part of Tetra Tech's succession planning and internal talent development into fiscal year 2026.
- Argus has over 30 years at Tetra Tech; Weiss also brings 30+ years leading federal and commercial operations.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/831641/000110465925097567/0001104659-25-097567-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/831641/000110465925097567/tm2528147d1_8k.htm
  HTML page:      https://secwatch.observer/filing/0001104659-25-097567

License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer