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    Tetra Tech Inc. filed SEC Form 8-K: Leadership Update, Other Events, Financial Statements and Exhibits

    1/6/26 4:34:28 PM ET
    $TTEK
    Military/Government/Technical
    Consumer Discretionary
    Get the next $TTEK alert in real time by email
    false 0000831641 0000831641 2026-01-06 2026-01-06 iso4217:USD xbrli:shares iso4217:USD xbrli:shares

     

     

     

    UNITED STATES

    SECURITIES AND EXCHANGE COMMISSION

    WASHINGTON, D.C. 20549

     

    FORM 8-K

     

    CURRENT REPORT

    Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

     

    Date of Report (Date of earliest event reported):

    January 6, 2026

     

    TETRA TECH, INC.

    (Exact name of registrant as specified in its charter)

     

    Delaware   0-19655   95-4148514
    (State or other jurisdiction
    of incorporation)
      (Commission
    File Number)
     

    (IRS Employer

    Identification Number)

     

    3475 East Foothill Boulevard, Pasadena, California 91107

    (Address of principal executive office, including zip code)

     

    (626) 351-4664

    (Registrant’s telephone number, including area code)

     

    Not Applicable

    (Former name or former address, if changed since last report)

     

    Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

     

    ¨Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
      

    ¨Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
      

    ¨Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
      

    ¨Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

     

    Securities registered pursuant to Section 12(b) of the Act:

     

    Title of each class   Trading symbol(s)   Name of each exchange on which registered
    Common Stock, $0.01 par value   TTEK   The Nasdaq Stock Market LLC

     

    Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

     

    Emerging Growth Company ¨

     

    If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

     

     

     

     

     

     

    Item 5.02.Departure of Directors or Principal Officers; Election of Directors; Appointment of Principal Officers.

     

    Appointment of Officer

     

    On January 6, 2026, Tetra Tech, Inc. (the “Company”) announced that Roger R. Argus, currently President, will succeed Dan L. Batrack as Chief Executive Officer and join the Company’s Board of Directors. Mr. Batrack, currently Chairman and Chief Executive Officer, will continue as Executive Chairman of the Board of Directors. The changes are effective February 19, 2026, the date of the Company’s annual shareholder meeting. It is expected that Mr. Batrack will serve as Executive Chairman for a minimum of two years.

     

    Mr. Argus joined the Company more than 30 years ago, and has held increasingly responsible positions. He has served as President since October 2025. He previously served as Executive Vice President, Corporate Development from November 2024 to October 2025, and President, Commercial/International Services Group from October 2023 to October 2025. Prior to this, Mr. Argus served as Senior Vice President and President, Government Services Group from October 2018 to October 2024, and President, U.S. Government Division from October 2017 to November 2024. During his tenure with the Company, he also has served as project and program manager and business unit leader.

     

    There are no arrangements or understandings between either Mr. Argus or Mr. Batrack and any other persons pursuant to which each was appointed as an officer or director of the Company (other than arrangements or understandings with directors or officers of the Company acting solely in their capacities as such). There are also no family relationships between either Mr. Argus or Mr. Batrack and any director or executive officer of the Company, and neither Mr. Argus nor Mr. Batrack is party to or has any direct or indirect material interest in any transaction requiring disclosure under Item 404(a) of Regulation S-K.

     

    Item 8.01.Other Events.

     

    On January 6, 2026, the Company issued a press release announcing the matters described in Item 5.02. A copy of the press release is attached as Exhibit 99.1 and is incorporated by reference herein.

     

    Item 9.01.Financial Statements and Exhibits.

     

     (d)Exhibits
       
    99.1Press Release, dated January 6, 2026.
       
     104 Cover Page Interactive Data File (embedded within the Inline XBRL document)

     

    2 

     

     

    SIGNATURES

     

    Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

     

      TETRA TECH, INC.
       
    Date: January 6, 2026 By: /s/ Dan L. Batrack
        Dan L. Batrack
        Chairman and Chief Executive Officer

     

    3 

     

    Get the next $TTEK alert in real time by email

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