Flash FinanceUS
Market open S&P 5007,376.86+0.31% Nasdaq24,579.42+1.09% Dow 3051,285.73-0.46% Russell 20002,754.11+0.89% Nasdaq-10026,989.99+1.35% MidCap 4003,602.50+0.56% SmallCap 6001,673.98+0.05% VIX25.64-9.01% 10Y Yield4.86+0.45% Close of Nov 06, 2026
AI brief of an SEC Form 8-K · Tetra Tech (TTEK)

Tetra Tech appoints Eric W. Thornburg to board, effective March 30, 2026

Neutral Impact 3 of 5 leadership Written later

Tetra Tech said it has appointed Eric W. Thornburg, former CEO of H20 America, to its Board of Directors effective March 30, 2026, bringing the board to eight members. He will serve on the Compensation Committee and the Nominating and Corporate Governance Committee. The filing does not describe any change to Tetra Tech's financial results or guidance.

Key points

  • Appointment effective March 30, 2026; he serves until the next Annual Meeting of Stockholders or until a successor is chosen.
  • Thornburg, 65, was CEO of H20 America (previously SJW Group) from 2017 to 2025 and Chair from 2018 to 2026.
  • Non-employee director pay includes a $110,000 annual retainer and a $175,000 grant-date fair value annual equity award, split 60% performance stock units and 40% restricted stock units.

The filing

CompanyTetra Tech (TTEK)
Form8-K, current report
Filed with the SECMar 26, 2026, 4:05 PM ET
Accession number0001104659-26-035179

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 March 26, 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.