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):

November 7, 2022

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 5.03.

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year.

On November 7, 2022, the Board of Directors (the “Board”) of Tetra Tech, Inc. (the “Company”) adopted an amendment and restatement of the Company’s bylaws (the “Bylaws”) to implement proxy access. Article 2.13 has been added to permit a stockholder or group of up to 20 stockholders owning 3% or more of the Company’s common stock continuously for at least three years to nominate and include in the Company’s proxy materials for an annual meeting of stockholders, director candidates constituting up to 20% of the Board, but not less than two, elected by the holders of the Company’s common stock, provided that the stockholder (or group) and each nominee satisfy the requirements specified in the Bylaws.

The Bylaws also contain conforming, clarifying, and updating changes to Article 2.7 related to the use of proxy cards by stockholders, as well as other non-substantive changes throughout.

The foregoing summary does not purport to be complete and is qualified in its entirety by reference to the full text of the Bylaws, as amended, a copy of which is filed as Exhibit 3.1 to this report on form 8-K and incorporated herein by reference.

Item 9.01

Financial Statements and Exhibits.

(d) Exhibits

Exhibit Number		Exhibit Title or Description
3.1		Amended and Restated Bylaws, dated as of November 7, 2022
104		Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

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

	TETRA TECH, INC.

Date: November 10, 2022	By:	/s/ DAN L. BATRACK
		Dan L. Batrack
		Chairman and Chief Executive Officer

Tetra Tech Inc. filed SEC Form 8-K: Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits