Transaction Details

Footnotes

The PSUs vested on 11/21/2023 but were deferred pursuant to the Issuer's Deferred Compensation Plan and settled according to the Reporting Person's elected distribution schedule. | Shares acquired pursuant to vesting of performance stock units earned under 2018 Equity Incentive Plan. | The PSUs vested on 11/20/2024 but were deferred pursuant to the Issuer's Deferred Compensation Plan and settled according to the Reporting Person's elected distribution schedule. | 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. | On September 6, 2024, the balance of 410 shares was updated pursuant to a 5 to 1 forward stock split, resulting in an additional 1,640 shares of common stock. | The restricted stock units (RSUs) became 100% vested as to the shares underlying the RSUs on November 18, 2021, but were deferred pursuant to the Issuer's Deferred Compensation Plan and settled according to the Reporting Person's elected distribution schedule. | The RSUs are exercisable at the time of vesting and do not have a set expiration date. | On September 6, 2024, the balance of 318 shares was updated pursuant to a 5 to 1 forward stock split, resulting in an additional 1,272 shares of common stock. | The restricted stock units (RSUs) became 100% vested as to the shares underlying the RSUs on November 18, 2022, but were deferred pursuant to the Issuer's Deferred Compensation Plan and settled according to the Reporting Person's elected distribution schedule.