BURDICK STEVEN M 4

4 · TETRA TECH INC · Filed Dec 2, 2025

Form 4

Period: 2025-11-19

EVP, CFO

Transactions

Exercise/Conversion
COMMON STOCK
2025-11-30+3,645→ 149,581 total
Exercise/Conversion
COMMON STOCK
2025-11-30+3,682→ 153,263 total
Tax Payment
COMMON STOCK
2025-11-30$34.74/sh−4,044$140,489→ 149,219 total
Award
RESTRICTED STOCK UNITS (RIGHT TO RECEIVE)
2025-11-19+19,641→ 19,641 total
From: 2026-11-30→ COMMON STOCK (19,641 underlying)
Exercise/Conversion
RESTRICTED STOCK UNITS (RIGHT TO RECEIVE)
2025-11-30−3,645→ 7,285 total
From: 2024-11-30→ COMMON STOCK (3,645 underlying)
Exercise/Conversion
RESTRICTED STOCK UNITS (RIGHT TO RECEIVE)
2025-11-30−3,682→ 11,046 total
From: 2025-11-30→ COMMON STOCK (3,682 underlying)

Footnotes (6)

[F1]Represents the shares withheld to pay the related tax liability of the restricted stock units (RSUs) that vested on November 30, 2025.
[F2]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.
[F3]The RSUs become vested as to 25% of the shares on November 30, 2026, and 25% annually, thereafter, until fully vested.
[F4]The RSUs are exercisable at the time of vesting and do not have a set expiration date.
[F5]The RSUs become vested as to 25% of the shares on November 30, 2024, and 25% annually, thereafter, until fully vested.
[F6]The RSUs become vested as to 25% of the shares on November 30, 2025, and 25% annually, thereafter, until fully vested.

Documents

1 file