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AI brief of an SEC Form 8-K · Tetra Tech (TTEK)

Tetra Tech names Roger Argus CEO effective February 19, 2026; Batrack becomes Executive Chairman

Neutral Impact 4 of 5 leadership Written later

Tetra Tech announced that Roger Argus, its current President, will succeed Dan Batrack as chief executive officer, effective February 19, 2026, the date of the annual shareholder meeting. Batrack, currently Chairman and CEO, will become Executive Chairman for a minimum of two years, and Argus is expected to join the Board at that time. The filing describes this as the result of the Board's long-term succession planning, but it does not discuss any effect on financial results or strategy.

Key points

  • Roger Argus, President since October 2025 and with the company more than 30 years, becomes CEO effective February 19, 2026.
  • Dan Batrack, CEO since more than 20 years and Chairman since 2008, will serve as Executive Chairman for a minimum of two years.
  • The filing states there are no arrangements or family relationships tied to either appointment and no related-party transactions requiring disclosure.

The filing

CompanyTetra Tech (TTEK)
Form8-K, current report
Filed with the SECJan 6, 2026, 4:34 PM ET
Accession number0001104659-26-001352

Items reported: 5.02 Director / Officer Change8.01 Other Events

Read the filing on SEC.gov ↗

Written by AI on Nov 8, 2026, 12:56 AM ET, from this filing only. Written later: this filing was briefed after the fact, when past filings were added to the site, so the brief may be read with hindsight; the filing itself is the record of what was known on January 06, 2026.

Briefs are written by AI from the filing text and can contain mistakes — open the filing before acting on anything. Impact (1-5) and tone are the AI's reading of the filing for shareholders, not a price forecast. Not investment advice.