M. Susan Hardwick - 26 Jan 2026 Form 4 Insider Report for TETRA TECH INC (TTEK)

Reporting relationship: Director
Issuer ticker: TTEK
Reported as of: 26 Jan 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 28 Jan 2026, 17:11:02 UTC
Prior SEC filing: 23 Jan 2026
Next SEC filing: 02 Apr 2026
Source filing: View source filing
Reporting owner signature: /s/ Preston Hopson, Attorney-in-Fact for M. Susan Hardwick

Key filing fact

M. Susan Hardwick filed Form 4 for TETRA TECH INC (TTEK) on 28 Jan 2026.

Key facts

This page summarizes M. Susan Hardwick's Form 4 filing for TETRA TECH INC (TTEK).
1 reported transaction and 1 derivative row are listed below.
Accepted by SEC: 28 Jan 2026, 17:11.

Change

Previous filing in this sequence was filed on 23 Jan 2026.
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 0001584184 Primary reporting owner

Hardwick M Susan

Relationship: Director
Address: 3475 E. FOOTHILL BLVD, PASADENA
Signature: /s/ Preston Hopson, Attorney-in-Fact for M. Susan Hardwick
Signature date: 28 Jan 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: +1,754
Change %
Price: $0.000000
Shares after: 1,754
Date: 26 Jan 2026
Ownership: Direct
Underlying class: COMMON STOCK
Underlying amount: 1,754
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 exercisable as to 100% of the shares on the first anniversary of the grant date.

Footnote F3

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