Roger R. Argus - 19 Feb 2026 Form 4 Insider Report for TETRA TECH INC (TTEK)

Reporting relationship: President and CEO
Issuer ticker: TTEK
Reported as of: 19 Feb 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 20 Feb 2026, 19:02:28 UTC
Prior SEC filing: 02 Dec 2025
Source filing: View source filing
Reporting owner signature: /s/ Preston Hopson, Attorney-in-fact for Roger R. Argus

Key filing fact

Roger R. Argus filed Form 4 for TETRA TECH INC (TTEK) on 20 Feb 2026.

Key facts

This page summarizes Roger R. Argus's Form 4 filing for TETRA TECH INC (TTEK).
1 reported transaction and 1 derivative row are listed below.
Accepted by SEC: 20 Feb 2026, 19:02.

Change

Previous filing in this sequence was filed on 02 Dec 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001721930 Primary reporting owner

Argus Roger R

Relationship: President and CEO
Address: 3475 EAST FOOTHILL BOULEVARD, PASADENA
Signature: /s/ Preston Hopson, Attorney-in-fact for Roger R. Argus
Signature date: 20 Feb 2026

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

TTEK transaction Derivative

RESTRICTED STOCK UNITS (RIGHT TO RECEIVE)

Award

Transaction value: $0
Shares: +28,174
Change %
Price: $0.000000
Shares after: 28,174
Date: 19 Feb 2026
Ownership: Direct
Underlying class: COMMON STOCK
Underlying amount: 28,174
Exercise price
Footnotes: F1, F2, F3

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote F1

Represents an award of restricted stock units (RSUs), each unit of which represents a contingent right to receive one share of Tetra Tech common stock.

Footnote F2

The RSUs become vested as to 25% of the shares on February 19, 2027, and 25% annually, thereafter, until fully vested.

Footnote F3

The RSUs are exercisable at the time of vesting and do not have a set expiration date.