Form 4 for TTEK TETRA TECH INC
Accepted 2026-03-18 00:00:00 ET · period of report 2026-03-16 · accession 0001592089-26-000004 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2026-03-18 | 2026-03-16 | TTEK | Ritrievi Kimberly E | Dir | A - Grant | $0.00 | +25.9K | 192.3K | +16% | $0 |
| DM | 2026-03-18 | 2026-03-16 | TTEK | Ritrievi Kimberly E | Dir | M - OptEx | $0.00 | +21.0K | 159.0K | +15% | $0 |
| DM | 2026-03-18 | 2026-03-16 | TTEK | Ritrievi Kimberly E | Dir | M - OptEx | $0.00 | -21.0K | 0 | -100% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | COMMON STOCK | 2026-03-16 | A | A | 25,883 | $0.00 | 192,259 | D | — | — | (F1) Shares acquired pursuant to vesting of performance stock units ("PSU") earned under 2018 Equity Incentive Plan. The PSUs vested between 11/23/2021 and 11/18/2025 but were deferred under the Issuer's Deferred Compensation Plan and have settled upon retirement. |
| 2 | Common | COMMON STOCK | 2026-03-16 | M | A | 4,500 | $0.00 | 149,908 | D | — | — | |
| 3 | Common | COMMON STOCK | 2026-03-16 | M | A | 2,250 | $0.00 | 152,158 | D | — | — | |
| 4 | Common | COMMON STOCK | 2026-03-16 | M | A | 1,925 | $0.00 | 154,083 | D | — | — | |
| 5 | Common | COMMON STOCK | 2026-03-16 | M | A | 2,910 | $0.00 | 156,993 | D | — | — | |
| 6 | Common | COMMON STOCK | 2026-03-16 | M | A | 1,718 | $0.00 | 166,376 | D | — | — | |
| 7 | Common | COMMON STOCK | 2026-03-16 | M | A | 795 | $0.00 | 159,838 | D | — | — | |
| 8 | Common | COMMON STOCK | 2026-03-16 | M | A | 795 | $0.00 | 160,633 | D | — | — | |
| 9 | Common | COMMON STOCK | 2026-03-16 | M | A | 1,900 | $0.00 | 162,533 | D | — | — | |
| 10 | Common | COMMON STOCK | 2026-03-16 | M | A | 2,125 | $0.00 | 164,658 | D | — | — | |
| 11 | Common | COMMON STOCK | 2026-03-16 | M | A | 2,050 | $0.00 | 159,043 | D | — | — | |
| 12 | Derivative | RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) | 2026-03-16 | M | D | 4,500 | $0.00 | 0 | D | — · 2016-11-20 to — | 4,500 COMMON STOCK | (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 100% vested as to the shares underlying the RSUs on the first anniversary date. (F4) The RSUs are exercisable at the time of vesting and do not have a set expiration date. |
| 13 | Derivative | RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) | 2026-03-16 | M | D | 1,718 | $0.00 | 0 | D | — · 2025-11-30 to — | 1,718 COMMON STOCK | (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 100% vested as to the shares underlying the RSUs on the first anniversary date. (F4) The RSUs are exercisable at the time of vesting and do not have a set expiration date. |
| 14 | Derivative | RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) | 2026-03-16 | M | D | 2,125 | $0.00 | 0 | D | — · 2024-11-30 to — | 2,125 COMMON STOCK | (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 100% vested as to the shares underlying the RSUs on the first anniversary date. (F4) The RSUs are exercisable at the time of vesting and do not have a set expiration date. |
| 15 | Derivative | RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) | 2026-03-16 | M | D | 1,900 | $0.00 | 0 | D | — · 2023-11-18 to — | 1,900 COMMON STOCK | (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 100% vested as to the shares underlying the RSUs on the first anniversary date. (F4) The RSUs are exercisable at the time of vesting and do not have a set expiration date. |
| 16 | Derivative | RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) | 2026-03-16 | M | D | 1,925 | $0.00 | 1,925 | D | — · 2019-11-15 to — | 1,925 COMMON STOCK | (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 100% vested as to the shares underlying the RSUs on the first anniversary date. (F4) The RSUs are exercisable at the time of vesting and do not have a set expiration date. |
| 17 | Derivative | RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) | 2026-03-16 | M | D | 795 | $0.00 | 0 | D | — · 2022-11-18 to — | 795 COMMON STOCK | (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 100% vested as to the shares underlying the RSUs on the first anniversary date. (F4) The RSUs are exercisable at the time of vesting and do not have a set expiration date. |
| 18 | Derivative | RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) | 2026-03-16 | M | D | 2,050 | $0.00 | 0 | D | — · 2021-11-18 to — | 2,050 COMMON STOCK | (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 100% vested as to the shares underlying the RSUs on the first anniversary date. (F4) The RSUs are exercisable at the time of vesting and do not have a set expiration date. |
| 19 | Derivative | RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) | 2026-03-16 | M | D | 2,910 | $0.00 | 0 | D | — · 2020-11-21 to — | 2,910 COMMON STOCK | (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 100% vested as to the shares underlying the RSUs on the first anniversary date. (F4) The RSUs are exercisable at the time of vesting and do not have a set expiration date. |
| 20 | Derivative | RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) | 2026-03-16 | M | D | 2,250 | $0.00 | 2,250 | D | — · 2018-11-17 to — | 2,250 COMMON STOCK | (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 100% vested as to the shares underlying the RSUs on the first anniversary date. (F4) The RSUs are exercisable at the time of vesting and do not have a set expiration date. |
| 21 | Derivative | RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) | 2026-03-16 | M | D | 795 | $0.00 | 0 | D | — · 2022-11-18 to — | 795 COMMON STOCK | (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 100% vested as to the shares underlying the RSUs on the first anniversary date. (F4) The RSUs are exercisable at the time of vesting and do not have a set expiration date. |