Insider plans Rule 144 sale of 9,979 shares

An affiliate of the issuer has filed a notice of proposed sale of 9,979 shares of common stock under Rule 144.

Rhea-AI Filing Summary

An affiliate of the issuer has filed a notice of proposed sale of 9,979 shares of common stock under Rule 144. The planned sale, through Morgan Stanley Smith Barney LLC Executive Financial Services, has an aggregate market value of $401,400.29 and is expected around February 4, 2026 on the NASDAQ. The shares to be sold were acquired from the issuer as performance shares on various dates in 2024 and 2025. The seller represents that they are not aware of any material adverse, nonpublic information about the issuer’s current or prospective operations.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the Form 144 filing for TTEK disclose?

The Form 144 discloses a proposed sale of 9,979 common shares under Rule 144, with an aggregate market value of $401,400.29, to be sold on the NASDAQ through Morgan Stanley Smith Barney LLC Executive Financial Services.

How many TTEK shares are planned for sale and what is their value?

The filing shows a planned sale of 9,979 common shares with an aggregate market value of $401,400.29. These figures are based on the market price at the time of the notice and apply specifically to this intended Rule 144 transaction.

When is the proposed Rule 144 sale for TTEK expected to occur?

The notice lists an approximate sale date of February 4, 2026. This date reflects when the seller expects to begin selling the 9,979 common shares on the NASDAQ, subject to market conditions and Rule 144 requirements.

How were the TTEK shares in this Form 144 acquired?

The shares covered by the notice were acquired from the issuer as performance shares on multiple dates in 2024 and 2025. Each acquisition is listed with a specific date, amount of securities acquired, and noted as performance share compensation.

Which broker is handling the proposed TTEK share sale?

The planned sale will be executed through Morgan Stanley Smith Barney LLC Executive Financial Services, located at 1 New York Plaza, 8th Floor, New York, NY 10004. This broker is identified as the firm handling the Rule 144 transaction.

How many TTEK shares are outstanding according to this Form 144?

The notice reports 260,807,561 shares of common stock outstanding. This figure provides a baseline context for the 9,979-share proposed sale disclosed under Rule 144 in the same document.

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Accepted by SEC EDGAR 02/04/2026 - 04:05 PM EST Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001561742
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	TETRA TECH, INC.
SEC File Number	000-19655
Address of Issuer	3475 East Foothill Boulevard PASADENA CALIFORNIA 91107
Phone	(626) 351-4664
Name of Person for Whose Account the Securities are To Be Sold	BRIAN CARTER
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	9979	401400.29	260807561	02/04/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	11/18/2025	Performance Shares	Issuer			3458	11/18/2025	Not Applicable
Common	11/20/2024	Performance Shares	Issuer			2283	11/20/2024	Not Applicable
Common	11/18/2025	Performance Shares	Issuer			1519	11/18/2025	Not Applicable
Common	11/20/2024	Performance Shares	Issuer			2719	11/20/2024	Not Applicable

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	02/04/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Brian Neal Carter
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)