Tetra Tech Inc. filings document the reporting obligations of a Nasdaq-listed operating company whose common stock trades under the symbol TTEK. Recent 8-K reports cover quarterly operating results, financial-condition exhibits, dividend declarations, officer promotions, director appointments, and committee assignments tied to the company’s consulting and engineering business.
Proxy materials describe annual meeting procedures, stockholder voting matters, board governance and executive-compensation disclosures. The filing record also identifies the company’s common stock structure and supports formal disclosure of governance changes, results releases and other material events for its water, environment and sustainable infrastructure services.
TETRA TECH INC director Jeffrey R. Feeler reported an open-market purchase of company shares. On 2026-05-15, he bought 1,900 shares of common stock at $26.41 per share. Following this transaction, he directly owns 1,900 shares of TETRA TECH INC common stock.
Tetra Tech, Inc. reported lower revenue but sharply higher profitability for the quarter and first half ended March 29, 2026. Revenue was $1.22 billion for the quarter and $2.43 billion for six months, down from $1.32 billion and $2.74 billion a year earlier, mainly due to reduced U.S. federal government work and a mix shift toward international clients.
Despite this, net income attributable to Tetra Tech jumped to $93.6 million for the quarter and $198.7 million for six months, versus $5.4 million and $6.1 million in the prior-year periods. The comparison benefits from last year’s $92.4 million goodwill impairment and $115.0 million legal contingency charge, as well as a $12.4 million gain on the sale of Norwegian operations in 2026. Diluted EPS reached $0.36 for the quarter and $0.76 year-to-date.
Operating cash flow improved to $237.6 million from $7.2 million, helped by strong collections and lower working capital. The company acquired Halvik Corp for an estimated $210 million to expand U.S. federal consulting capabilities and continued portfolio reshaping with the Norway divestiture. It repurchased about 2.9 million shares for $100.0 million, paid $33.9 million in dividends, and ended with $223.6 million in cash and $880.2 million of long-term debt. Remaining unsatisfied performance obligations totaled approximately $4.22 billion, providing multi-year revenue visibility.
Tetra Tech Inc reports that Vanguard Capital Management holds 13,656,856 shares of Common Stock, representing 5.23% of the class, as reported on the Schedule 13G. The filing shows Vanguard has sole dispositive power for 13,656,856 shares and sole voting power for 1,947,705 shares. The Schedule 13G discloses these holdings are reported on behalf of multiple Vanguard investment vehicles and affiliates; the signing date is 04/30/2026.
Tetra Tech reported second-quarter 2026 results with revenue of $1.22 billion and net revenue of $1.05 billion. Operating income was $132 million, EBITDA was $146 million, and EPS was $0.36 with adjusted EPS of $0.34. Backlog reached $4.28 billion, up 8% sequentially.
Cash from operations was $165 million in the quarter and $688 million over the last twelve months. For fiscal 2026, the company raised net revenue guidance to $4.25–$4.40 billion and adjusted EPS guidance to $1.50–$1.58. The Board declared a $0.072 quarterly dividend, up 11% year-over-year, and the company repurchased $50 million of stock, with $498 million remaining under its repurchase program.
Thornburg Eric W reported acquisition or exercise transactions in this Form 4 filing.
Tetra Tech director Eric W. Thornburg received a grant of 1,259 restricted stock units (RSUs), each representing a contingent right to receive one share of Tetra Tech common stock. The RSUs will become 100% vested on April 27, 2027 and are exercisable at that time with no set expiration date. Following this award, Thornburg holds 1,259 RSUs directly.
TETRA TECH INC director Eric W. Thornburg has filed a Form 3, the initial statement of beneficial ownership required for new insiders. The filing lists no reportable transactions, and no derivative positions are shown in the derivative summary or transaction summary.
Tetra Tech Inc received an amended Schedule 13G/A filing from The Vanguard Group reporting 0 shares beneficially owned of Common Stock, representing 0% of the class. The filing notes an internal realignment of Vanguard on January 12, 2026 that caused disaggregation of certain subsidiaries' holdings.
The amendment lists Vanguard's address and confirms no sole or shared voting or dispositive power over any Tetra Tech shares in the filing. The form is signed by Vanguard's Head of Global Fund Administration on 03/27/2026.
Tetra Tech, Inc. announced that Eric W. Thornburg has been appointed to its Board of Directors, effective March 30, 2026, to serve until the next annual stockholder meeting or until a successor is chosen and qualified. The Board will then have eight members.
Thornburg, a 40-year water industry veteran and former CEO and Chair of H20 America and Connecticut Water Service, will serve on the Compensation Committee and the Nominating and Corporate Governance Committee. As a non-employee director he will receive a $110,000 annual cash retainer, $2,000 per meeting above eight annually, and an annual long‑term equity award valued at $175,000, split between performance and restricted stock units and prorated for his initial service period.
Tetra Tech director Kimberly E. Ritrievi reported a series of stock-based compensation transactions in Tetra Tech common stock. On March 16, 2026, she exercised and settled performance and restricted stock units, acquiring 20,968 shares of common stock through derivative exercises coded "M".
According to the footnotes, these shares were earned under the 2018 Equity Incentive Plan as performance stock units that vested between November 23, 2021 and November 18, 2025, were deferred under the Deferred Compensation Plan, and have now settled upon retirement. She also received a new grant of 25,883 restricted stock units (RSUs), each representing one share of common stock.
The RSUs become 100% vested on the first anniversary of the grant date and are exercisable at vesting with no set expiration date. After these transactions, Ritrievi directly owns 192,259 shares of Tetra Tech common stock. No open‑market sales were reported in this filing.
TETRA TECH INC director Christiana Obiaya acquired 495 shares of common stock through the exercise and conversion of restricted stock units (RSUs) on February 19, 2026. The RSUs converted on a one-for-one basis into Tetra Tech common shares at a price of $0.00 per share, bringing her directly held common stock holdings to 9,666 shares after the transaction.
The filing explains that this RSU vesting had originally been scheduled for November 18, 2026, but the vesting was accelerated upon her retirement from the company’s board of directors. The RSUs are exercisable at the time of vesting and do not have a set expiration date, and a remaining balance of 1,469 RSUs was cancelled in connection with her retirement.