Key facts
- This page summarizes Brian N. Carter's Form 4 filing for TETRA TECH INC (TTEK).
- 13 reported transactions and 5 derivative rows are listed below.
- Accepted by SEC: 02 Dec 2025, 20:13.
Brian N. Carter - 18 Nov 2025 Form 4 Insider Report for TETRA TECH INC (TTEK)
- Reporting relationship
- SVP, Corporate Controller
- Issuer ticker
- TTEK
- Reported as of
- 18 Nov 2025
- Net transaction value
- -$309,471
- SEC form
- 4
- Accepted by SEC
- 02 Dec 2025, 20:13:01 UTC
- Prior SEC filing
- 03 Dec 2024
- Next SEC filing
- 06 Feb 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/ Preston Hopson, Attorney-in-fact for Brian N. Carter
Source evidence
Original filing metadata and source links for verification.
5 source fields
Reporting owner
1 detail
Key filing fact
Brian N. Carter filed Form 4 for TETRA TECH INC (TTEK) on 02 Dec 2025.
Change
- Previous filing in this sequence was filed on 03 Dec 2024.
- Current net transaction value: -$309,471.
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 0001561742
Primary reporting owner
CARTER BRIAN N
- Relationship
- SVP, Corporate Controller
- Address
- 3475 EAST FOOTHILL BOULEVARD, PASADENA
- Signature
- /s/ Preston Hopson, Attorney-in-fact for Brian N. Carter
- 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
- +995
- Change %
- +2%
- Price
- $0.000000
- Shares after
- 50,219
- Date
- 18 Nov 2025
- Ownership
- Direct
TTEK
transaction
COMMON STOCK
Options Exercise
- Transaction value
- $0
- Shares
- +1,265
- Change %
- +2.5%
- Price
- $0.000000
- Shares after
- 51,484
- Date
- 18 Nov 2025
- Ownership
- Direct
TTEK
transaction
COMMON STOCK
Tax liability
- Transaction value
- $44,041
- Shares
- -1,234
- Change %
- -2.4%
- Price
- $35.69
- Shares after
- 50,250
- Date
- 18 Nov 2025
- Ownership
- Direct
- Footnotes
- F1
TTEK
transaction
COMMON STOCK
Award
- Transaction value
- $0
- Shares
- +10,954
- Change %
- +22%
- Price
- $0.000000
- Shares after
- 61,204
- Date
- 18 Nov 2025
- Ownership
- Direct
- Footnotes
- F2
TTEK
transaction
COMMON STOCK
Tax liability
- Transaction value
- $213,319
- Shares
- -5,977
- Change %
- -9.8%
- Price
- $35.69
- Shares after
- 55,227
- Date
- 18 Nov 2025
- Ownership
- Direct
- Footnotes
- F3
TTEK
transaction
COMMON STOCK
Options Exercise
- Transaction value
- $0
- Shares
- +1,520
- Change %
- +2.8%
- Price
- $0.000000
- Shares after
- 56,747
- Date
- 30 Nov 2025
- Ownership
- Direct
TTEK
transaction
COMMON STOCK
Options Exercise
- Transaction value
- $0
- Shares
- +1,228
- Change %
- +2.2%
- Price
- $0.000000
- Shares after
- 57,975
- Date
- 30 Nov 2025
- Ownership
- Direct
TTEK
transaction
COMMON STOCK
Tax liability
- Transaction value
- $52,110
- Shares
- -1,500
- Change %
- -2.6%
- Price
- $34.74
- Shares after
- 56,475
- Date
- 30 Nov 2025
- Ownership
- Direct
- Footnotes
- F4
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
TTEK
transaction
Derivative
RESTRICTED STOCK UNITS (RIGHT TO RECEIVE)
Options Exercise
- Transaction value
- $0
- Shares
- -995
- Change %
- -100%
- Price
- $0.000000
- Shares after
- 0
- Date
- 18 Nov 2025
- Ownership
- Direct
- Underlying class
- COMMON STOCK
- Underlying amount
- 995
- Exercise price
- Footnotes
- F5, F6, F7
TTEK
transaction
Derivative
RESTRICTED STOCK UNITS (RIGHT TO RECEIVE)
Options Exercise
- Transaction value
- $0
- Shares
- -1,265
- Change %
- -50%
- Price
- $0.000000
- Shares after
- 1,265
- Date
- 18 Nov 2025
- Ownership
- Direct
- Underlying class
- COMMON STOCK
- Underlying amount
- 1,265
- Exercise price
- Footnotes
- F5, F7, F8
TTEK
transaction
Derivative
RESTRICTED STOCK UNITS (RIGHT TO RECEIVE)
Award
- Transaction value
- $0
- Shares
- +5,612
- Change %
- Price
- $0.000000
- Shares after
- 5,612
- Date
- 19 Nov 2025
- Ownership
- Direct
- Underlying class
- COMMON STOCK
- Underlying amount
- 5,612
- Exercise price
- Footnotes
- F5, F7, F9
TTEK
transaction
Derivative
RESTRICTED STOCK UNITS (RIGHT TO RECEIVE)
Options Exercise
- Transaction value
- $0
- Shares
- -1,520
- Change %
- -33%
- Price
- $0.000000
- Shares after
- 3,030
- Date
- 30 Nov 2025
- Ownership
- Direct
- Underlying class
- COMMON STOCK
- Underlying amount
- 1,520
- Exercise price
- Footnotes
- F5, F7, F10
TTEK
transaction
Derivative
RESTRICTED STOCK UNITS (RIGHT TO RECEIVE)
Options Exercise
- Transaction value
- $0
- Shares
- -1,228
- Change %
- -25%
- Price
- $0.000000
- Shares after
- 3,681
- Date
- 30 Nov 2025
- Ownership
- Direct
- Underlying class
- COMMON STOCK
- Underlying amount
- 1,228
- Exercise price
- Footnotes
- F5, F7, F11
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 11 footnotes
Footnote F1
Represents the shares withheld to pay the related tax liability of the restricted stock units (RSUs) that vested on November 18, 2025.
Footnote F2
Shares acquired pursuant to vesting of performance stock units earned under 2018 Equity Incentive Plan.
Footnote F3
Represents the shares withheld to pay the related tax liability of performance stock units that vested on November 18, 2025.
Footnote F4
Represents the shares withheld to pay the related tax liability of the restricted stock units (RSUs) that vested on November 30, 2025.
Footnote F5
Represents an award of RSUs, each unit of which represents a contingent right to receive one share of Tetra Tech common stock.
Footnote F6
The RSUs become vested as to 25% of the shares on November 18, 2022, and 25% annually, thereafter, until fully vested.
Footnote F7
The RSUs are exercisable at the time of vesting and do not have a set expiration date.
Footnote F8
The RSUs become vested as to 25% of the shares on November 18, 2023, and 25% annually, thereafter, until fully vested.
Footnote F9
The RSUs become vested as to 25% of the shares on November 30, 2026, and 25% annually, thereafter, until fully vested.
Footnote F10
The RSUs become vested as to 25% of the shares on November 30, 2024, and 25% annually, thereafter, until fully vested.
Footnote F11
The RSUs become vested as to 25% of the shares on November 30, 2025, and 25% annually, thereafter, until fully vested.