Last 12 months
Inside the activity.
1 purchase rows · 1 sale rows
Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.Monthly counts
| Month | Purchases | Sales |
|---|---|---|
| Nov 2025 | 0 | 0 |
| Dec 2025 | 0 | 0 |
| Jan 2026 | 0 | 0 |
| Feb 2026 | 0 | 1 |
| Mar 2026 | 0 | 0 |
| Apr 2026 | 0 | 0 |
| May 2026 | 1 | 0 |
| Jun 2026 | 0 | 0 |
| Jul 2026 | 0 | 0 |
| Aug 2026 | 0 | 0 |
| Sep 2026 | 0 | 0 |
| Oct 2026 | 0 | 0 |
Latest available
Insider transactions
Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Owner / reported role | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| August 04, 2026 Filed Aug 6, 2026 21:17 UTC |
Volpi Kirsten MDirector
|
Exercise / conversionSTOCK OPTION (RIGHT TO BUY) · Derivative | 2,300 | $0.00 Strike: $9.59 | $0.00 |
DisclosureSEC source: 0001582882-26-000004 · wk-form4_1786051030.xml · derivative · entry 2 Volpi Kirsten M · CIK 0001582882 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 4,000 Underlying: COMMON STOCK · 2,300 shares Expires 2027-11-18 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_date: The option becomes exercisable as to 100% of the shares on the anniversary of the grant date. Read SEC document |
| August 04, 2026 Filed Aug 6, 2026 21:17 UTC |
Volpi Kirsten MDirector
|
Exercise / conversionCOMMON STOCK | 2,300 | $9.59 | $22,057.00 |
DisclosureSEC source: 0001582882-26-000004 · wk-form4_1786051030.xml · nonDerivative · entry 1 Volpi Kirsten M · CIK 0001582882 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 74,218 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| June 04, 2026 Filed Jun 5, 2026 23:08 UTC |
Volpi Kirsten MDirector
|
Exercise / conversionSTOCK OPTION (RIGHT TO BUY) · Derivative | 1,700 | $0.00 Strike: $9.59 | $0.00 |
DisclosureSEC source: 0001582882-26-000002 · wk-form4_1780700892.xml · derivative · entry 2 Volpi Kirsten M · CIK 0001582882 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 6,300 Underlying: COMMON STOCK · 1,700 shares Expires 2027-11-18 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_date: The option becomes exercisable as to 100% of the shares on the anniversary of the grant date. Read SEC document |
| June 04, 2026 Filed Jun 5, 2026 23:08 UTC |
Volpi Kirsten MDirector
|
Exercise / conversionCOMMON STOCK | 1,700 | $9.59 | $16,303.00 |
DisclosureSEC source: 0001582882-26-000002 · wk-form4_1780700892.xml · nonDerivative · entry 1 Volpi Kirsten M · CIK 0001582882 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 71,918 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| May 15, 2026 Filed May 15, 2026 21:36 UTC |
Feeler Jeffrey RDirector
|
PurchaseCOMMON STOCK | 1,900 | $26.41 | $50,179.00 |
DisclosureSEC source: 0001369458-26-000006 · wk-form4_1778880973.xml · nonDerivative · entry 1 Feeler Jeffrey R · CIK 0001369458 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,900 Read SEC document |
| April 27, 2026 Filed Apr 28, 2026 23:35 UTC |
Thornburg Eric WDirector
|
GrantRESTRICTED STOCK UNITS (RIGHT TO RECEIVE) · Derivative | 1,259 | $0.00 | $0.00 |
DisclosureSEC source: 0001349767-26-000006 · wk-form4_1777419330.xml · derivative · entry 1 Thornburg Eric W · CIK 0001349767 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,259 Underlying: COMMON STOCK · 1,259 shares Expires not disclosed F1 · derivative.exercise_price: 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. F2 · derivative.exercise_date: The RSUs become 100% vested as to the shares underlying the RSUs on April 27, 2027. F3 · derivative.expiration_date: The RSUs are exercisable at the time of vesting and do not have a set expiration date. Read SEC document |
| March 16, 2026 Filed Mar 19, 2026 00:43 UTC |
Ritrievi Kimberly EDirector
|
Exercise / conversionRESTRICTED STOCK UNITS (RIGHT TO RECEIVE) · Derivative | 1,718 | $0.00 | $0.00 |
DisclosureSEC source: 0001592089-26-000004 · wk-form4_1773881002.xml · derivative · entry 21 Ritrievi Kimberly E · CIK 0001592089 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: COMMON STOCK · 1,718 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · derivative.exercise_price: 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 · derivative.exercise_date: The RSUs become 100% vested as to the shares underlying the RSUs on the first anniversary date. F4 · derivative.expiration_date: The RSUs are exercisable at the time of vesting and do not have a set expiration date. Read SEC document |
| March 16, 2026 Filed Mar 19, 2026 00:43 UTC |
Ritrievi Kimberly EDirector
|
Exercise / conversionRESTRICTED STOCK UNITS (RIGHT TO RECEIVE) · Derivative | 2,125 | $0.00 | $0.00 |
DisclosureSEC source: 0001592089-26-000004 · wk-form4_1773881002.xml · derivative · entry 20 Ritrievi Kimberly E · CIK 0001592089 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: COMMON STOCK · 2,125 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · derivative.exercise_price: 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 · derivative.exercise_date: The RSUs become 100% vested as to the shares underlying the RSUs on the first anniversary date. F4 · derivative.expiration_date: The RSUs are exercisable at the time of vesting and do not have a set expiration date. F8 · derivative.underlying_shares: On September 6, 2024, the balance of 425 shares was updated pursuant to a 5 to 1 forward stock split, resulting in an additional 1,700 shares of common stock. Read SEC document |
| March 16, 2026 Filed Mar 19, 2026 00:43 UTC |
Ritrievi Kimberly EDirector
|
Exercise / conversionRESTRICTED STOCK UNITS (RIGHT TO RECEIVE) · Derivative | 1,900 | $0.00 | $0.00 |
DisclosureSEC source: 0001592089-26-000004 · wk-form4_1773881002.xml · derivative · entry 19 Ritrievi Kimberly E · CIK 0001592089 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: COMMON STOCK · 1,900 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · derivative.exercise_price: 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 · derivative.exercise_date: The RSUs become 100% vested as to the shares underlying the RSUs on the first anniversary date. F4 · derivative.expiration_date: The RSUs are exercisable at the time of vesting and do not have a set expiration date. F7 · derivative.underlying_shares: On September 6, 2024, the balance of 380 shares was updated pursuant to a 5 to 1 forward stock split, resulting in an additional 1,520 shares of common stock. Read SEC document |
| March 16, 2026 Filed Mar 19, 2026 00:43 UTC |
Ritrievi Kimberly EDirector
|
Exercise / conversionRESTRICTED STOCK UNITS (RIGHT TO RECEIVE) · Derivative | 795 | $0.00 | $0.00 |
DisclosureSEC source: 0001592089-26-000004 · wk-form4_1773881002.xml · derivative · entry 18 Ritrievi Kimberly E · CIK 0001592089 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: COMMON STOCK · 795 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · derivative.exercise_price: 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 · derivative.exercise_date: The RSUs become 100% vested as to the shares underlying the RSUs on the first anniversary date. F4 · derivative.expiration_date: The RSUs are exercisable at the time of vesting and do not have a set expiration date. F6 · derivative.underlying_shares: On September 6, 2024, the balance of 159 shares was updated pursuant to a 5 to 1 forward stock split, resulting in an additional 636 shares of common stock. Read SEC document |
| March 16, 2026 Filed Mar 19, 2026 00:43 UTC |
Ritrievi Kimberly EDirector
|
Exercise / conversionRESTRICTED STOCK UNITS (RIGHT TO RECEIVE) · Derivative | 795 | $0.00 | $0.00 |
DisclosureSEC source: 0001592089-26-000004 · wk-form4_1773881002.xml · derivative · entry 17 Ritrievi Kimberly E · CIK 0001592089 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: COMMON STOCK · 795 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · derivative.exercise_price: 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 · derivative.exercise_date: The RSUs become 100% vested as to the shares underlying the RSUs on the first anniversary date. F4 · derivative.expiration_date: The RSUs are exercisable at the time of vesting and do not have a set expiration date. F6 · derivative.underlying_shares: On September 6, 2024, the balance of 159 shares was updated pursuant to a 5 to 1 forward stock split, resulting in an additional 636 shares of common stock. Read SEC document |
| March 16, 2026 Filed Mar 19, 2026 00:43 UTC |
Ritrievi Kimberly EDirector
|
Exercise / conversionRESTRICTED STOCK UNITS (RIGHT TO RECEIVE) · Derivative | 2,050 | $0.00 | $0.00 |
DisclosureSEC source: 0001592089-26-000004 · wk-form4_1773881002.xml · derivative · entry 16 Ritrievi Kimberly E · CIK 0001592089 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: COMMON STOCK · 2,050 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · derivative.exercise_price: 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 · derivative.exercise_date: The RSUs become 100% vested as to the shares underlying the RSUs on the first anniversary date. F4 · derivative.expiration_date: The RSUs are exercisable at the time of vesting and do not have a set expiration date. F5 · derivative.underlying_shares: 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. Read SEC document |
| March 16, 2026 Filed Mar 19, 2026 00:43 UTC |
Ritrievi Kimberly EDirector
|
Exercise / conversionRESTRICTED STOCK UNITS (RIGHT TO RECEIVE) · Derivative | 2,910 | $0.00 | $0.00 |
DisclosureSEC source: 0001592089-26-000004 · wk-form4_1773881002.xml · derivative · entry 15 Ritrievi Kimberly E · CIK 0001592089 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: COMMON STOCK · 2,910 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · derivative.exercise_price: 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 · derivative.exercise_date: The RSUs become 100% vested as to the shares underlying the RSUs on the first anniversary date. F4 · derivative.expiration_date: The RSUs are exercisable at the time of vesting and do not have a set expiration date. Read SEC document |
| March 16, 2026 Filed Mar 19, 2026 00:43 UTC |
Ritrievi Kimberly EDirector
|
Exercise / conversionRESTRICTED STOCK UNITS (RIGHT TO RECEIVE) · Derivative | 1,925 | $0.00 | $0.00 |
DisclosureSEC source: 0001592089-26-000004 · wk-form4_1773881002.xml · derivative · entry 14 Ritrievi Kimberly E · CIK 0001592089 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,925 Underlying: COMMON STOCK · 1,925 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · derivative.exercise_price: 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 · derivative.exercise_date: The RSUs become 100% vested as to the shares underlying the RSUs on the first anniversary date. F4 · derivative.expiration_date: The RSUs are exercisable at the time of vesting and do not have a set expiration date. Read SEC document |
| March 16, 2026 Filed Mar 19, 2026 00:43 UTC |
Ritrievi Kimberly EDirector
|
Exercise / conversionRESTRICTED STOCK UNITS (RIGHT TO RECEIVE) · Derivative | 2,250 | $0.00 | $0.00 |
DisclosureSEC source: 0001592089-26-000004 · wk-form4_1773881002.xml · derivative · entry 13 Ritrievi Kimberly E · CIK 0001592089 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,250 Underlying: COMMON STOCK · 2,250 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · derivative.exercise_price: 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 · derivative.exercise_date: The RSUs become 100% vested as to the shares underlying the RSUs on the first anniversary date. F4 · derivative.expiration_date: The RSUs are exercisable at the time of vesting and do not have a set expiration date. Read SEC document |
| March 16, 2026 Filed Mar 19, 2026 00:43 UTC |
Ritrievi Kimberly EDirector
|
Exercise / conversionRESTRICTED STOCK UNITS (RIGHT TO RECEIVE) · Derivative | 4,500 | $0.00 | $0.00 |
DisclosureSEC source: 0001592089-26-000004 · wk-form4_1773881002.xml · derivative · entry 12 Ritrievi Kimberly E · CIK 0001592089 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: COMMON STOCK · 4,500 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · derivative.exercise_price: 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 · derivative.exercise_date: The RSUs become 100% vested as to the shares underlying the RSUs on the first anniversary date. F4 · derivative.expiration_date: The RSUs are exercisable at the time of vesting and do not have a set expiration date. Read SEC document |
| March 16, 2026 Filed Mar 19, 2026 00:43 UTC |
Ritrievi Kimberly EDirector
|
GrantCOMMON STOCK | 25,883 | $0.00 | $0.00 |
DisclosureSEC source: 0001592089-26-000004 · wk-form4_1773881002.xml · nonDerivative · entry 11 Ritrievi Kimberly E · CIK 0001592089 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 192,259 F1 · shares: 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. Read SEC document |
| March 16, 2026 Filed Mar 19, 2026 00:43 UTC |
Ritrievi Kimberly EDirector
|
Exercise / conversionCOMMON STOCK | 1,718 | $0.00 | $0.00 |
DisclosureSEC source: 0001592089-26-000004 · wk-form4_1773881002.xml · nonDerivative · entry 10 Ritrievi Kimberly E · CIK 0001592089 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 166,376 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| March 16, 2026 Filed Mar 19, 2026 00:43 UTC |
Ritrievi Kimberly EDirector
|
Exercise / conversionCOMMON STOCK | 2,125 | $0.00 | $0.00 |
DisclosureSEC source: 0001592089-26-000004 · wk-form4_1773881002.xml · nonDerivative · entry 9 Ritrievi Kimberly E · CIK 0001592089 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 164,658 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| March 16, 2026 Filed Mar 19, 2026 00:43 UTC |
Ritrievi Kimberly EDirector
|
Exercise / conversionCOMMON STOCK | 1,900 | $0.00 | $0.00 |
DisclosureSEC source: 0001592089-26-000004 · wk-form4_1773881002.xml · nonDerivative · entry 8 Ritrievi Kimberly E · CIK 0001592089 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 162,533 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| March 16, 2026 Filed Mar 19, 2026 00:43 UTC |
Ritrievi Kimberly EDirector
|
Exercise / conversionCOMMON STOCK | 795 | $0.00 | $0.00 |
DisclosureSEC source: 0001592089-26-000004 · wk-form4_1773881002.xml · nonDerivative · entry 7 Ritrievi Kimberly E · CIK 0001592089 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 160,633 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| March 16, 2026 Filed Mar 19, 2026 00:43 UTC |
Ritrievi Kimberly EDirector
|
Exercise / conversionCOMMON STOCK | 795 | $0.00 | $0.00 |
DisclosureSEC source: 0001592089-26-000004 · wk-form4_1773881002.xml · nonDerivative · entry 6 Ritrievi Kimberly E · CIK 0001592089 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 159,838 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| March 16, 2026 Filed Mar 19, 2026 00:43 UTC |
Ritrievi Kimberly EDirector
|
Exercise / conversionCOMMON STOCK | 2,050 | $0.00 | $0.00 |
DisclosureSEC source: 0001592089-26-000004 · wk-form4_1773881002.xml · nonDerivative · entry 5 Ritrievi Kimberly E · CIK 0001592089 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 159,043 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| March 16, 2026 Filed Mar 19, 2026 00:43 UTC |
Ritrievi Kimberly EDirector
|
Exercise / conversionCOMMON STOCK | 2,910 | $0.00 | $0.00 |
DisclosureSEC source: 0001592089-26-000004 · wk-form4_1773881002.xml · nonDerivative · entry 4 Ritrievi Kimberly E · CIK 0001592089 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 156,993 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| March 16, 2026 Filed Mar 19, 2026 00:43 UTC |
Ritrievi Kimberly EDirector
|
Exercise / conversionCOMMON STOCK | 1,925 | $0.00 | $0.00 |
DisclosureSEC source: 0001592089-26-000004 · wk-form4_1773881002.xml · nonDerivative · entry 3 Ritrievi Kimberly E · CIK 0001592089 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 154,083 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| March 16, 2026 Filed Mar 19, 2026 00:43 UTC |
Ritrievi Kimberly EDirector
|
Exercise / conversionCOMMON STOCK | 2,250 | $0.00 | $0.00 |
DisclosureSEC source: 0001592089-26-000004 · wk-form4_1773881002.xml · nonDerivative · entry 2 Ritrievi Kimberly E · CIK 0001592089 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 152,158 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| March 16, 2026 Filed Mar 19, 2026 00:43 UTC |
Ritrievi Kimberly EDirector
|
Exercise / conversionCOMMON STOCK | 4,500 | $0.00 | $0.00 |
DisclosureSEC source: 0001592089-26-000004 · wk-form4_1773881002.xml · nonDerivative · entry 1 Ritrievi Kimberly E · CIK 0001592089 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 149,908 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| February 19, 2026 Filed Feb 21, 2026 00:04 UTC |
Obiaya ChristianaDirector
|
Exercise / conversionRESTRICTED STOCK UNITS (RIGHT TO RECEIVE) · Derivative | 495 | $0.00 | $0.00 |
DisclosureSEC source: 0001902712-26-000002 · wk-form4_1771632243.xml · derivative · entry 2 Obiaya Christiana · CIK 0001902712 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: COMMON STOCK · 495 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: 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. F2 · derivative.exercise_date: Vesting of the RSUs, which was initially scheduled for November 18, 2026, was accelerated on the Reporting Person's retirement from the Issuer's board of directors. F3 · derivative.expiration_date: The RSUs are exercisable at the time of vesting and do not have a set expiration date. F4 · balance_after: Balance of 1,469 RSUs were cancelled upon retirement. Read SEC document |
| February 19, 2026 Filed Feb 21, 2026 00:04 UTC |
Obiaya ChristianaDirector
|
Exercise / conversionCOMMON STOCK | 495 | $0.00 | $0.00 |
DisclosureSEC source: 0001902712-26-000002 · wk-form4_1771632243.xml · nonDerivative · entry 1 Obiaya Christiana · CIK 0001902712 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 9,666 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| February 19, 2026 Filed Feb 21, 2026 00:02 UTC |
Argus Roger RPresident and CEO
|
GrantRESTRICTED STOCK UNITS (RIGHT TO RECEIVE) · Derivative | 28,174 | $0.00 | $0.00 |
DisclosureSEC source: 0001721930-26-000003 · wk-form4_1771632146.xml · derivative · entry 1 Argus Roger R · CIK 0001721930 · President and CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 28,174 Underlying: COMMON STOCK · 28,174 shares Expires not disclosed F1 · derivative.exercise_price: 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. F2 · derivative.exercise_date: The RSUs become vested as to 25% of the shares on February 19, 2027, and 25% annually, thereafter, until fully vested. F3 · derivative.expiration_date: The RSUs are exercisable at the time of vesting and do not have a set expiration date. Read SEC document |
| February 10, 2026 Filed Feb 12, 2026 22:02 UTC |
Volpi Kirsten MDirector
|
Exercise / conversionSTOCK OPTION (RIGHT TO BUY) · Derivative | 1,000 | $0.00 Strike: $9.59 | $0.00 |
DisclosureSEC source: 0001628280-26-007775 · wk-form4_1770933726.xml · derivative · entry 2 Volpi Kirsten M · CIK 0001582882 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 8,000 Underlying: COMMON STOCK · 1,000 shares Expires 2027-11-18 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_date: The option becomes exercisable as to 100% of the shares on the anniversary of the grant date. Read SEC document |
| February 10, 2026 Filed Feb 12, 2026 22:02 UTC |
Volpi Kirsten MDirector
|
Exercise / conversionCOMMON STOCK | 1,000 | $9.59 | $9,590.00 |
DisclosureSEC source: 0001628280-26-007775 · wk-form4_1770933726.xml · nonDerivative · entry 1 Volpi Kirsten M · CIK 0001582882 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 70,218 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| February 06, 2026 Filed Feb 6, 2026 22:07 UTC |
BURDICK STEVEN MEVP, CFO
|
GiftCOMMON STOCK | 11,100 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-26-006116 · wk-form4_1770415658.xml · nonDerivative · entry 1 BURDICK STEVEN M · CIK 0001277150 · EVP, CFO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 138,251 F1 · price: Bona fide gift to charitable organization. No compensation was given to the donor for the gifting of shares. F2 · balance_after: The balance of 149,351 shares includes 132 shares of common stock that were acquired by the Reporting Person on December 15, 2025, pursuant to the Tetra Tech, Inc. Employee Stock Purchase Plan (ESPP). Read SEC document |
| February 04, 2026 Filed Feb 6, 2026 22:07 UTC |
CARTER BRIAN NSVP, Corporate Controller
|
SaleCOMMON STOCK | 9,979 | $40.23 | $401,405.28 |
DisclosureSEC source: 0001628280-26-006115 · wk-form4_1770415630.xml · nonDerivative · entry 1 CARTER BRIAN N · CIK 0001561742 · SVP, Corporate Controller 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 46,496 F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $40.2244 to $40.225, inclusive. Read SEC document |
| January 26, 2026 Filed Jan 28, 2026 22:11 UTC |
Feeler Jeffrey RDirector
|
GrantRESTRICTED STOCK UNITS (RIGHT TO RECEIVE) · Derivative | 1,754 | $0.00 | $0.00 |
DisclosureSEC source: 0001369458-26-000004 · wk-form4_1769638313.xml · derivative · entry 1 Feeler Jeffrey R · CIK 0001369458 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,754 Underlying: COMMON STOCK · 1,754 shares Expires not disclosed F1 · derivative.exercise_price: 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. F2 · derivative.exercise_date: The RSUs become exercisable as to 100% of the shares on the first anniversary of the grant date. F3 · derivative.expiration_date: The RSUs are exercisable at the time of vesting and do not have a set expiration date. Read SEC document |
| January 26, 2026 Filed Jan 28, 2026 22:11 UTC |
Hardwick M SusanDirector
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GrantRESTRICTED STOCK UNITS (RIGHT TO RECEIVE) · Derivative | 1,754 | $0.00 | $0.00 |
DisclosureSEC source: 0001584184-26-000002 · wk-form4_1769638259.xml · derivative · entry 1 Hardwick M Susan · CIK 0001584184 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,754 Underlying: COMMON STOCK · 1,754 shares Expires not disclosed F1 · derivative.exercise_price: 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. F2 · derivative.exercise_date: The RSUs become exercisable as to 100% of the shares on the first anniversary of the grant date. F3 · derivative.expiration_date: The RSUs are exercisable at the time of vesting and do not have a set expiration date. Read SEC document |
| January 12, 2026 Filed Jan 14, 2026 21:26 UTC |
Birkenbeuel GaryDirector
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Exercise / conversionRESTRICTED STOCK UNITS (RIGHT TO RECEIVE) · Derivative | 1,590 | $0.00 | $0.00 |
DisclosureSEC source: 0001748476-26-000002 · wk-form4_1768425999.xml · derivative · entry 6 Birkenbeuel Gary · CIK 0001748476 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: COMMON STOCK · 1,590 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F4 · derivative.exercise_price: 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. F8 · shares: 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. F9 · derivative.exercise_date: 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. F7 · derivative.expiration_date: The RSUs are exercisable at the time of vesting and do not have a set expiration date. Read SEC document |
| January 12, 2026 Filed Jan 14, 2026 21:26 UTC |
Birkenbeuel GaryDirector
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GrantCOMMON STOCK | 4,397 | $0.00 | $0.00 |
DisclosureSEC source: 0001748476-26-000002 · wk-form4_1768425999.xml · nonDerivative · entry 4 Birkenbeuel Gary · CIK 0001748476 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 51,032 F3 · date: 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. F2 · shares: Shares acquired pursuant to vesting of performance stock units earned under 2018 Equity Incentive Plan. Read SEC document |
| January 12, 2026 Filed Jan 14, 2026 21:26 UTC |
Birkenbeuel GaryDirector
|
Exercise / conversionCOMMON STOCK | 1,590 | $0.00 | $0.00 |
DisclosureSEC source: 0001748476-26-000002 · wk-form4_1768425999.xml · nonDerivative · entry 3 Birkenbeuel Gary · CIK 0001748476 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 46,635 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| January 12, 2026 Filed Jan 14, 2026 21:26 UTC |
Ritrievi Kimberly EDirector
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GrantCOMMON STOCK | 2,208 | $0.00 | $0.00 |
DisclosureSEC source: 0001592089-26-000002 · wk-form4_1768425981.xml · nonDerivative · entry 1 Ritrievi Kimberly E · CIK 0001592089 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 145,408 F1 · date: 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. F2 · shares: Shares acquired pursuant to vesting of performance stock units earned under 2018 Equity Incentive Plan. Read SEC document |
| November 30, 2025 Filed Dec 3, 2025 01:22 UTC |
SHOEMAKER LESLIE LEVP, Chief Sustainability
|
Exercise / conversionRESTRICTED STOCK UNITS (RIGHT TO RECEIVE) · Derivative | 3,682 | $0.00 | $0.00 |
DisclosureSEC source: 0001450067-25-000005 · wk-form4_1764724927.xml · derivative · entry 6 SHOEMAKER LESLIE L · CIK 0001450067 · EVP, Chief Sustainability 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 11,046 Underlying: COMMON STOCK · 3,682 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · derivative.exercise_price: 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. F6 · derivative.exercise_date: The RSUs become vested as to 25% of the shares on November 30, 2025, and 25% annually, thereafter, until fully vested. F4 · derivative.expiration_date: The RSUs are exercisable at the time of vesting and do not have a set expiration date. Read SEC document |
| November 30, 2025 Filed Dec 3, 2025 01:22 UTC |
SHOEMAKER LESLIE LEVP, Chief Sustainability
|
Exercise / conversionRESTRICTED STOCK UNITS (RIGHT TO RECEIVE) · Derivative | 3,035 | $0.00 | $0.00 |
DisclosureSEC source: 0001450067-25-000005 · wk-form4_1764724927.xml · derivative · entry 5 SHOEMAKER LESLIE L · CIK 0001450067 · EVP, Chief Sustainability 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 6,070 Underlying: COMMON STOCK · 3,035 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · derivative.exercise_price: 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. F5 · derivative.exercise_date: The RSUs become vested as to 25% of the shares on November 30, 2024, and 25% annually, thereafter, until fully vested. F4 · derivative.expiration_date: The RSUs are exercisable at the time of vesting and do not have a set expiration date. Read SEC document |
| November 30, 2025 Filed Dec 3, 2025 01:22 UTC |
SHOEMAKER LESLIE LEVP, Chief Sustainability
|
Tax withholdingCOMMON STOCK | 3,707 | $34.74 | $128,781.18 |
DisclosureSEC source: 0001450067-25-000005 · wk-form4_1764724927.xml · nonDerivative · entry 3 SHOEMAKER LESLIE L · CIK 0001450067 · EVP, Chief Sustainability 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 325,821 F1 · shares: Represents the shares withheld to pay the related tax liability of the restricted stock units (RSUs) that vested on November 30, 2025. Read SEC document |
| November 30, 2025 Filed Dec 3, 2025 01:22 UTC |
SHOEMAKER LESLIE LEVP, Chief Sustainability
|
Exercise / conversionCOMMON STOCK | 3,682 | $0.00 | $0.00 |
DisclosureSEC source: 0001450067-25-000005 · wk-form4_1764724927.xml · nonDerivative · entry 2 SHOEMAKER LESLIE L · CIK 0001450067 · EVP, Chief Sustainability 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 329,528 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| November 30, 2025 Filed Dec 3, 2025 01:22 UTC |
SHOEMAKER LESLIE LEVP, Chief Sustainability
|
Exercise / conversionCOMMON STOCK | 3,035 | $0.00 | $0.00 |
DisclosureSEC source: 0001450067-25-000005 · wk-form4_1764724927.xml · nonDerivative · entry 1 SHOEMAKER LESLIE L · CIK 0001450067 · EVP, Chief Sustainability 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 325,846 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| November 30, 2025 Filed Dec 3, 2025 01:23 UTC |
Volpi Kirsten MDirector
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Exercise / conversionRESTRICTED STOCK UNITS (RIGHT TO RECEIVE) · Derivative | 1,718 | $0.00 | $0.00 |
DisclosureSEC source: 0001582882-25-000005 · wk-form4_1764725006.xml · derivative · entry 5 Volpi Kirsten M · CIK 0001582882 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: COMMON STOCK · 1,718 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: 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. F5 · derivative.exercise_date: The RSUs become 100% vested as to the shares underlying the RSUs on November 30, 2025. F3 · derivative.expiration_date: The RSUs are exercisable at the time of vesting and do not have a set expiration date. Read SEC document |
| November 30, 2025 Filed Dec 3, 2025 01:23 UTC |
Volpi Kirsten MDirector
|
Exercise / conversionCOMMON STOCK | 1,718 | $0.00 | $0.00 |
DisclosureSEC source: 0001582882-25-000005 · wk-form4_1764725006.xml · nonDerivative · entry 1 Volpi Kirsten M · CIK 0001582882 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 68,218 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| November 30, 2025 Filed Dec 3, 2025 01:18 UTC |
Hopson PrestonEVP, Chief Legal/Human Capital
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Exercise / conversionRESTRICTED STOCK UNITS (RIGHT TO RECEIVE) · Derivative | 2,455 | $0.00 | $0.00 |
DisclosureSEC source: 0001728969-25-000006 · wk-form4_1764724692.xml · derivative · entry 6 Hopson Preston · CIK 0001728969 · EVP, Chief Legal/Human Capital 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 7,363 Underlying: COMMON STOCK · 2,455 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · derivative.exercise_price: 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. F6 · derivative.exercise_date: The RSUs become vested as to 25% of the shares on November 30, 2025, and 25% annually, thereafter, until fully vested. F4 · derivative.expiration_date: The RSUs are exercisable at the time of vesting and do not have a set expiration date. Read SEC document |
| November 30, 2025 Filed Dec 3, 2025 01:18 UTC |
Hopson PrestonEVP, Chief Legal/Human Capital
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Exercise / conversionRESTRICTED STOCK UNITS (RIGHT TO RECEIVE) · Derivative | 2,735 | $0.00 | $0.00 |
DisclosureSEC source: 0001728969-25-000006 · wk-form4_1764724692.xml · derivative · entry 5 Hopson Preston · CIK 0001728969 · EVP, Chief Legal/Human Capital 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 5,460 Underlying: COMMON STOCK · 2,735 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · derivative.exercise_price: 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. F5 · derivative.exercise_date: The RSUs become vested as to 25% of the shares on November 30, 2024, and 25% annually, thereafter, until fully vested. F4 · derivative.expiration_date: The RSUs are exercisable at the time of vesting and do not have a set expiration date. Read SEC document |
| November 30, 2025 Filed Dec 3, 2025 01:18 UTC |
Hopson PrestonEVP, Chief Legal/Human Capital
|
Tax withholdingCOMMON STOCK | 2,044 | $34.74 | $71,008.56 |
DisclosureSEC source: 0001728969-25-000006 · wk-form4_1764724692.xml · nonDerivative · entry 3 Hopson Preston · CIK 0001728969 · EVP, Chief Legal/Human Capital 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 83,142 F1 · shares: Represents the shares withheld to pay the related tax liability of the restricted stock units (RSUs) that vested on November 30, 2025. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.