Key facts
- This page summarizes Kirsten M. Volpi's Form 4 filing for TETRA TECH INC (TTEK).
- 5 reported transactions and 3 derivative rows are listed below.
- Accepted by SEC: 02 Dec 2025, 20:23.
Kirsten M. Volpi - 19 Nov 2025 Form 4 Insider Report for TETRA TECH INC (TTEK)
- Reporting relationship
- Director
- Issuer ticker
- TTEK
- Reported as of
- 19 Nov 2025
- Net transaction value
- $0
- SEC form
- 4
- Accepted by SEC
- 02 Dec 2025, 20:23:29 UTC
- Prior SEC filing
- 20 Nov 2025
- Next SEC filing
- 12 Feb 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/ Preston Hopson, Attorney-in-fact for Kirsten M. Volpi
Source evidence
Original filing metadata and source links for verification.
5 source fields
Reporting owner
1 detail
Key filing fact
Kirsten M. Volpi filed Form 4 for TETRA TECH INC (TTEK) on 02 Dec 2025.
Change
- Previous filing in this sequence was filed on 20 Nov 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
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001582882
Primary reporting owner
Volpi Kirsten M
- Relationship
- Director
- Address
- 3475 EAST FOOTHILL BOULEVARD, PASADENA
- Signature
- /s/ Preston Hopson, Attorney-in-fact for Kirsten M. Volpi
- Signature date
- 02 Dec 2025
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
TTEK
transaction
COMMON STOCK
Options Exercise
- Transaction value
- $0
- Shares
- +1,718
- Change %
- +2.6%
- Price
- $0.000000
- Shares after
- 68,218
- Date
- 30 Nov 2025
- Ownership
- Direct
TTEK
transaction
COMMON STOCK
Options Exercise
- Transaction value
- $9,590
- Shares
- +1,000
- Change %
- +1.5%
- Price
- $9.59
- Shares after
- 69,218
- Date
- 28 Nov 2025
- Ownership
- Direct
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
- +1,964
- Change %
- Price
- $0.000000
- Shares after
- 1,964
- Date
- 19 Nov 2025
- Ownership
- Direct
- Underlying class
- COMMON STOCK
- Underlying amount
- 1,964
- Exercise price
- Footnotes
- F1, F2, F3
TTEK
transaction
Derivative
STOCK OPTION (RIGHT TO BUY)
Options Exercise
- Transaction value
- $9,590
- Shares
- -1,000
- Change %
- -10%
- Price
- $9.59
- Shares after
- 9,000
- Date
- 28 Nov 2025
- Ownership
- Direct
- Underlying class
- COMMON STOCK
- Underlying amount
- 1,000
- Exercise price
- $9.59
- Footnotes
- F4
TTEK
transaction
Derivative
RESTRICTED STOCK UNITS (RIGHT TO RECEIVE)
Options Exercise
- Transaction value
- $0
- Shares
- -1,718
- Change %
- -100%
- Price
- $0.000000
- Shares after
- 0
- Date
- 30 Nov 2025
- Ownership
- Direct
- Underlying class
- COMMON STOCK
- Underlying amount
- 1,718
- Exercise price
- Footnotes
- F1, F3, F5
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 5 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 100% vested as to the shares underlying the RSUs on November 30, 2026.
Footnote F3
The RSUs are exercisable at the time of vesting and do not have a set expiration date.
Footnote F4
The option becomes exercisable as to 100% of the shares on the anniversary of the grant date.
Footnote F5
The RSUs become 100% vested as to the shares underlying the RSUs on November 30, 2025.