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Volpi Kirsten M

Disclosed activity across 1 company

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26001
SEC CIK
0001582882

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
TETRA TECH INCTTEK · Entity 3570DirectorAugust 04, 2026August 06, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

TETRA TECH INC

Report date August 04, 2026 · Filed August 06, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
COMMON STOCKSEC Table I · non-derivativeDirect74,218 Reported balance After 2026-08-04 transaction · row 1
1 source row

Row 1 · 2026-08-04 · Exercise / conversion · Acquired 2,300 · Balance 74,218

STOCK OPTION (RIGHT TO BUY)SEC Table II · derivative / convertible security · Conversion / exercise price $9.59 · Expires 2027-11-18Direct4,000 Reported balance After 2026-08-04 transaction · row 2 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 2 · 2026-08-04 · Exercise / conversion · Disposed 2,300 · Balance 4,000

F1: The option becomes exercisable as to 100% of the shares on the anniversary of the grant date.

Filing footnotes · ownership attribution and instrument terms

F1: The option becomes exercisable as to 100% of the shares on the anniversary of the grant date.

Transaction history

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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 dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
June 01, 2022 Filed Jun 3, 2022 20:37 UTC TETRA TECH INC TTEK · Entity 3570 SaleCOMMON STOCK 550 $135.41 $74,476.93
Disclosure

SEC source: 0001582882-22-000002 · wf-form4_165428861395742.xml · nonDerivative · entry 1

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,475

F1 · price: All shares sold at an exact price.

Read SEC document
March 18, 2022 Filed Mar 21, 2022 21:20 UTC TETRA TECH INC TTEK · Entity 3570 GiftCOMMON STOCK 610 $0.00 $0.00
Disclosure

SEC source: 0000831641-22-000018 · wf-form4_164789761075153.xml · nonDerivative · entry 1

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,025

F1 · shares: Bona fide gift. No compensation was given to the donor for the gifting of shares.

Read SEC document
March 08, 2022 Filed Mar 10, 2022 21:20 UTC TETRA TECH INC TTEK · Entity 3570 SaleCOMMON STOCK 900 $156.34 $140,701.50
Disclosure

SEC source: 0000831641-22-000014 · wf-form4_164694721336785.xml · nonDerivative · entry 2

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,635

F2 · price: All shares sold at an exact price.

Read SEC document
December 09, 2021 Filed Mar 10, 2022 21:20 UTC TETRA TECH INC TTEK · Entity 3570 GiftCOMMON STOCK 54 $0.00 $0.00
Disclosure

SEC source: 0000831641-22-000014 · wf-form4_164694721336785.xml · nonDerivative · entry 1

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,535

F1 · price: Bona fide gift. No compensation was given to the donor for the gifting of shares.

Read SEC document
December 07, 2021 Filed Dec 9, 2021 23:39 UTC TETRA TECH INC TTEK · Entity 3570 SaleCOMMON STOCK 700 $189.62 $132,732.25
Disclosure

SEC source: 0000831641-21-000160 · wf-form4_163909315533150.xml · nonDerivative · entry 2

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,589

Read SEC document
December 07, 2021 Filed Dec 9, 2021 23:39 UTC TETRA TECH INC TTEK · Entity 3570 GiftCOMMON STOCK 978 $0.00 $0.00
Disclosure

SEC source: 0000831641-21-000160 · wf-form4_163909315533150.xml · nonDerivative · entry 1

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,289

F1 · price: Bona fide gift. No compensation was given to the donor for the gifting of shares.

Read SEC document
November 23, 2021 Filed Nov 25, 2021 01:25 UTC TETRA TECH INC TTEK · Entity 3570 GrantRESTRICTED STOCK UNITS (RIGHT TO RECEIVE) · Derivative 318 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0000831641-21-000148 · wf-form4_163780353634361.xml · derivative · entry 2

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 318

Underlying: COMMON STOCK · 318 shares

Expires 2022-11-19

F2 · derivative.exercise_date: The restricted stock units (RSUs) become 100% vested as to the shares underlying the RSUs on November 18, 2022.

Read SEC document
November 23, 2021 Filed Nov 25, 2021 01:25 UTC TETRA TECH INC TTEK · Entity 3570 GrantCOMMON STOCK 2,310 $0.00 $0.00
Disclosure

SEC source: 0000831641-21-000148 · wf-form4_163780353634361.xml · nonDerivative · entry 1

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,267

F1 · price: Shares acquired pursuant to vesting of performance stock units (PSUs) earned under 2018 Equity Incentive Plan.

Read SEC document
November 18, 2021 Filed Nov 23, 2021 00:45 UTC TETRA TECH INC TTEK · Entity 3570 Exercise / conversionRESTRICTED STOCK UNITS (RIGHT TO RECEIVE) · Derivative 410 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0000831641-21-000107 · wf-form4_163762828718316.xml · derivative · entry 2

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: COMMON STOCK · 410 shares

Expires 2021-11-19

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_date: The restricted stock units (RSUs) become 100% vested as to the shares underlying the RSUs on November 18, 2021.

Read SEC document
November 18, 2021 Filed Nov 23, 2021 00:45 UTC TETRA TECH INC TTEK · Entity 3570 Exercise / conversionCOMMON STOCK 410 $0.00 $0.00
Disclosure

SEC source: 0000831641-21-000107 · wf-form4_163762828718316.xml · nonDerivative · entry 1

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,957

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 · shares: Shares automatically acquired upon the vesting of restricted stock units (RSUs).

Read SEC document
August 02, 2021 Filed Aug 3, 2021 23:13 UTC TETRA TECH INC TTEK · Entity 3570 GiftCOMMON STOCK 450 $0.00 $0.00
Disclosure

SEC source: 0000831641-21-000056 · wf-form4_162803238932179.xml · nonDerivative · entry 1

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,547

F1 · price: Bona fide gift. No compensation was given to the donor for the gifting of shares.

Read SEC document
June 07, 2021 Filed Jun 7, 2021 23:07 UTC TETRA TECH INC TTEK · Entity 3570 SaleCOMMON STOCK 5,575 $119.15 $664,261.25
Disclosure

SEC source: 0000831641-21-000047 · wf-form4_162310721246519.xml · nonDerivative · entry 1

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,997

F1 · price: $119.15 is the exact price. Shares were sold at the exact price per share.

Read SEC document
February 03, 2021 Filed Feb 4, 2021 23:20 UTC TETRA TECH INC TTEK · Entity 3570 GiftCOMMON STOCK 40 $0.00 $0.00
Disclosure

SEC source: 0000831641-21-000018 · wf-form4_161248082421680.xml · nonDerivative · entry 1

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,572

F1 · price: Bona fide gift. No compensation was given to the donor for the gifting of shares.

Read SEC document
December 08, 2020 Filed Dec 8, 2020 23:36 UTC TETRA TECH INC TTEK · Entity 3570 SaleCOMMON STOCK 6,468 $120.16 $777,198.76
Disclosure

SEC source: 0000831641-20-000180 · wf-form4_160747057400491.xml · nonDerivative · entry 1

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,612

Read SEC document
December 02, 2020 Filed Dec 3, 2020 22:45 UTC TETRA TECH INC TTEK · Entity 3570 GiftCOMMON STOCK 456 $0.00 $0.00
Disclosure

SEC source: 0000831641-20-000174 · wf-form4_160703550182061.xml · nonDerivative · entry 2

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,080

F1 · price: Bona fide gift. No compensation was given to the donor for the gifting of shares.

Read SEC document
December 01, 2020 Filed Dec 3, 2020 22:45 UTC TETRA TECH INC TTEK · Entity 3570 GiftCOMMON STOCK 42 $0.00 $0.00
Disclosure

SEC source: 0000831641-20-000174 · wf-form4_160703550182061.xml · nonDerivative · entry 1

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,536

F1 · price: Bona fide gift. No compensation was given to the donor for the gifting of shares.

Read SEC document
November 23, 2020 Filed Nov 25, 2020 22:12 UTC TETRA TECH INC TTEK · Entity 3570 Exercise / conversionSTOCK OPTION (RIGHT TO BUY) · Derivative 4,200 $0.00 Strike: $27.26 $0.00
Disclosure

SEC source: 0000831641-20-000166 · wf-form4_160634233295480.xml · derivative · entry 3

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: COMMON STOCK · 4,200 shares

Expires 2024-11-21

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_date: The option became exercisable as to 100% of the shares on the anniversary of the grant date.

F3 · derivative.expiration_date: The option granted expires 10 years after the grant date.

Read SEC document
November 23, 2020 Filed Nov 25, 2020 22:12 UTC TETRA TECH INC TTEK · Entity 3570 SaleCOMMON STOCK 950 $122.20 $116,092.00
Disclosure

SEC source: 0000831641-20-000166 · wf-form4_160634233295480.xml · nonDerivative · entry 2

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,578

F1 · price: $122.2021 is an average price. Shares were sold at prices ranging from $122.20 to $122.21 per share.

Read SEC document
November 23, 2020 Filed Nov 25, 2020 22:12 UTC TETRA TECH INC TTEK · Entity 3570 Exercise / conversionCOMMON STOCK 4,200 $27.26 $114,492.00
Disclosure

SEC source: 0000831641-20-000166 · wf-form4_160634233295480.xml · nonDerivative · entry 1

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,528

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 19, 2020 Filed Nov 20, 2020 21:57 UTC TETRA TECH INC TTEK · Entity 3570 GrantRESTRICTED STOCK UNITS (RIGHT TO RECEIVE) · Derivative 410 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0000831641-20-000127 · wf-form4_160590941148834.xml · derivative · entry 1

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 410

Underlying: COMMON STOCK · 410 shares

Expires 2021-11-19

F1 · derivative.exercise_date: The restricted stock units (RSUs) become 100% vested as to the shares underlying the RSUs on November 18, 2021.

Read SEC document
November 18, 2020 Filed Nov 19, 2020 01:05 UTC TETRA TECH INC TTEK · Entity 3570 Exercise / conversionRESTRICTED STOCK UNITS (RIGHT TO RECEIVE) · Derivative 582 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0000831641-20-000105 · wf-form4_160574789072181.xml · derivative · entry 6

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: COMMON STOCK · 582 shares

Expires 2020-11-21

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.

F7 · derivative.exercise_date: The restricted stock units (RSUs) became vested as to 100% of the shares underlying the RSUs on November 18, 2020.

Read SEC document
November 18, 2020 Filed Nov 19, 2020 01:05 UTC TETRA TECH INC TTEK · Entity 3570 GrantCOMMON STOCK 3,600 $0.00 $0.00
Disclosure

SEC source: 0000831641-20-000105 · wf-form4_160574789072181.xml · nonDerivative · entry 4

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,328

F3 · shares: Shares acquired pursuant to vesting of performance stock units (PSUs) earned under 2015 Equity Incentive Plan.

F4 · price: Each PSU represented the right to receive one share of Tetra Tech common stock.

Read SEC document
November 18, 2020 Filed Nov 19, 2020 01:05 UTC TETRA TECH INC TTEK · Entity 3570 Exercise / conversionCOMMON STOCK 582 $0.00 $0.00
Disclosure

SEC source: 0000831641-20-000105 · wf-form4_160574789072181.xml · nonDerivative · entry 3

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,728

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 · shares: Shares automatically acquired upon the vesting of restricted stock units (RSUs).

F2 · price: Each RSU represented the right to receive one share of Tetra Tech common stock.

Read SEC document
November 16, 2020 Filed Nov 19, 2020 01:05 UTC TETRA TECH INC TTEK · Entity 3570 Exercise / conversionSTOCK OPTION (RIGHT TO BUY) · Derivative 4,200 $0.00 Strike: $28.58 $0.00
Disclosure

SEC source: 0000831641-20-000105 · wf-form4_160574789072181.xml · derivative · entry 5

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: COMMON STOCK · 4,200 shares

Expires 2021-11-22

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.

F5 · derivative.exercise_date: The option became exercisable as to 100% of the shares on the anniversary of the grant date.

F6 · derivative.expiration_date: The option granted expires 8 years after the grant date.

Read SEC document
November 16, 2020 Filed Nov 19, 2020 01:05 UTC TETRA TECH INC TTEK · Entity 3570 SaleCOMMON STOCK 997 $122.26 $121,894.62
Disclosure

SEC source: 0000831641-20-000105 · wf-form4_160574789072181.xml · nonDerivative · entry 2

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,146

Read SEC document
November 16, 2020 Filed Nov 19, 2020 01:05 UTC TETRA TECH INC TTEK · Entity 3570 Exercise / conversionCOMMON STOCK 4,200 $28.58 $120,036.00
Disclosure

SEC source: 0000831641-20-000105 · wf-form4_160574789072181.xml · nonDerivative · entry 1

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,143

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
August 26, 2020 Filed Aug 26, 2020 21:58 UTC TETRA TECH INC TTEK · Entity 3570 SaleCOMMON STOCK 800 $93.44 $74,752.00
Disclosure

SEC source: 0000831641-20-000087 · wf-form4_159847906934329.xml · nonDerivative · entry 1

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,943

F1 · balance_after: Amount of securities beneficially owned was updated to reflect that 57 shares of common stock were donated to a charitable organization by the Reporting Person on February 4, 2020.

Read SEC document
May 07, 2020 Filed May 8, 2020 22:20 UTC TETRA TECH INC TTEK · Entity 3570 Exercise / conversionCOMMON STOCK · Derivative 4,000 $0.00 Strike: $23.52 $0.00
Disclosure

SEC source: 0000831641-20-000050 · wf-form4_158897640160295.xml · derivative · entry 3

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: COMMON STOCK · 4,000 shares

Expires 2021-07-29

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_date: The option became exercisable as to 100% of the shares on the anniversary of the grant date.

Read SEC document
May 07, 2020 Filed May 8, 2020 22:20 UTC TETRA TECH INC TTEK · Entity 3570 SaleCOMMON STOCK 1,351 $70.56 $95,330.75
Disclosure

SEC source: 0000831641-20-000050 · wf-form4_158897640160295.xml · nonDerivative · entry 2

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,857

F1 · price: $70.5631 is an average price. Shares were sold at prices ranging from $70.5336 to $70.5836 per share.

Read SEC document
May 07, 2020 Filed May 8, 2020 22:20 UTC TETRA TECH INC TTEK · Entity 3570 Exercise / conversionCOMMON STOCK 4,000 $23.52 $94,080.00
Disclosure

SEC source: 0000831641-20-000050 · wf-form4_158897640160295.xml · nonDerivative · entry 1

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,208

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
December 12, 2019 Filed Dec 12, 2019 23:36 UTC TETRA TECH INC TTEK · Entity 3570 GiftCOMMON STOCK 575 $0.00 $0.00
Disclosure

SEC source: 0000831641-19-000208 · wf-form4_157619377602439.xml · nonDerivative · entry 2

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,208

F1 · price: Bona fide gift. No compensation was given to the donor for the gifting of shares.

Read SEC document
December 10, 2019 Filed Dec 12, 2019 23:36 UTC TETRA TECH INC TTEK · Entity 3570 SaleCOMMON STOCK 425 $85.99 $36,543.63
Disclosure

SEC source: 0000831641-19-000208 · wf-form4_157619377602439.xml · nonDerivative · entry 1

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,783

Read SEC document
November 21, 2019 Filed Nov 22, 2019 21:39 UTC TETRA TECH INC TTEK · Entity 3570 GrantRESTRICTED STOCK UNITS (RIGHT TO RECEIVE) · Derivative 582 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0000831641-19-000187 · wf-form4_157445878391780.xml · derivative · entry 1

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 582

Underlying: COMMON STOCK · 582 shares

Expires 2020-11-21

F1 · derivative.exercise_price: Each RSU represents the right to receive one share of common stock.

F2 · derivative.exercise_date: The restricted stock units (RSUs) become 100% vested as to the shares underlying the RSUs on November 18, 2020.

Read SEC document
November 18, 2019 Filed Nov 21, 2019 01:34 UTC TETRA TECH INC TTEK · Entity 3570 Exercise / conversionRESTRICTED STOCK UNITS (RIGHT TO RECEIVE) · Derivative 770 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0000831641-19-000137 · wf-form4_157430002792135.xml · derivative · entry 3

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: COMMON STOCK · 770 shares

Expires 2019-11-18

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.

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.

F5 · derivative.exercise_date: The restricted stock units (RSUs) vested on November 18, 2019.

F5 · derivative.expiration_date: The restricted stock units (RSUs) vested on November 18, 2019.

Read SEC document
November 18, 2019 Filed Nov 21, 2019 01:34 UTC TETRA TECH INC TTEK · Entity 3570 GrantCOMMON STOCK 3,060 Not disclosed Not disclosed
Disclosure

SEC source: 0000831641-19-000137 · wf-form4_157430002792135.xml · nonDerivative · entry 2

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,208

F2 · shares: Shares acquired pursuant to vesting of performance stock units (PSUs) earned under 2015 Equity Incentive Plan.

F3 · price: Each PSU represented the right to receive one share of Tetra Tech common stock.

Read SEC document
November 18, 2019 Filed Nov 21, 2019 01:34 UTC TETRA TECH INC TTEK · Entity 3570 Exercise / conversionCOMMON STOCK 770 Not disclosed Not disclosed
Disclosure

SEC source: 0000831641-19-000137 · wf-form4_157430002792135.xml · nonDerivative · entry 1

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,148

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 · shares: Shares automatically acquired upon the vesting of restricted stock units (RSUs).

F1 · price: Shares automatically acquired upon the vesting of restricted stock units (RSUs).

Read SEC document
August 14, 2019 Filed Aug 16, 2019 22:09 UTC TETRA TECH INC TTEK · Entity 3570 Exercise / conversionSTOCK OPTION (RIGHT TO BUY) · Derivative 4,000 $0.00 Strike: $23.52 $0.00
Disclosure

SEC source: 0000831641-19-000066 · wf-form4_156599333253383.xml · derivative · entry 3

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: COMMON STOCK · 4,000 shares

Expires 2021-07-30

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 became exercisable as to 100% of the shares on the anniversary of the grant date.

Read SEC document
August 14, 2019 Filed Aug 16, 2019 22:09 UTC TETRA TECH INC TTEK · Entity 3570 SaleCOMMON STOCK 4,000 $78.00 $312,000.00
Disclosure

SEC source: 0000831641-19-000066 · wf-form4_156599333253383.xml · nonDerivative · entry 2

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,378

Read SEC document
August 14, 2019 Filed Aug 16, 2019 22:09 UTC TETRA TECH INC TTEK · Entity 3570 Exercise / conversionCOMMON STOCK 4,000 $23.52 $94,080.00
Disclosure

SEC source: 0000831641-19-000066 · wf-form4_156599333253383.xml · nonDerivative · entry 1

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,378

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 20, 2018 Filed Nov 22, 2018 01:09 UTC TETRA TECH INC TTEK · Entity 3570 GrantCOMMON STOCK 2,880 $0.00 $0.00
Disclosure

SEC source: 0000831641-18-000184 · wf-form4_154284896856481.xml · nonDerivative · entry 1

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,378

F1 · shares: Shares acquired pursuant to vesting of performance stock units (PSUs) earned under 2015 Equity Incentive Plan.

F2 · price: Each PSU represented the right to receive one share of common stock.

Read SEC document
November 15, 2018 Filed Nov 16, 2018 22:19 UTC TETRA TECH INC TTEK · Entity 3570 GrantRESTRICTED STOCK UNITS (RIGHT TO RECEIVE) · Derivative 770 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0000831641-18-000122 · wf-form4_154240677795702.xml · derivative · entry 3

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 770

Underlying: COMMON STOCK · 770 shares

Expires 2019-11-18

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.

F5 · derivative.exercise_date: The restricted stock units (RSUs) become 100% vested as to the shares underlying the RSUs on November 18, 2019.

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November 15, 2018 Filed Nov 16, 2018 22:19 UTC TETRA TECH INC TTEK · Entity 3570 GiftCOMMON STOCK 303 $66.11 $20,031.33
Disclosure

SEC source: 0000831641-18-000122 · wf-form4_154240677795702.xml · nonDerivative · entry 2

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,498

F2 · shares: Bona fide gift. No compensation was given to the donor for the gifting of shares.

F3 · price: The closing trading price of the common stock on the date of the gift was $66.11 per share.

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November 14, 2018 Filed Nov 16, 2018 22:19 UTC TETRA TECH INC TTEK · Entity 3570 SaleCOMMON STOCK 1,200 $66.94 $80,324.76
Disclosure

SEC source: 0000831641-18-000122 · wf-form4_154240677795702.xml · nonDerivative · entry 1

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,801

F1 · price: All shares sold at an exact price.

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February 22, 2018 Filed Feb 23, 2018 21:09 UTC TETRA TECH INC TTEK · Entity 3570 GiftCOMMON STOCK 20 $0.00 $0.00
Disclosure

SEC source: 0000831641-18-000024 · wf-form4_151942015635392.xml · nonDerivative · entry 3

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,001

F4 · kind: The reporting person donated 20 shares of common stock on February 22, 2018.

F2 · price: Bona fide gift. No compensation was given to the donor for the gifting of shares.

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February 22, 2018 Filed Feb 23, 2018 21:09 UTC TETRA TECH INC TTEK · Entity 3570 GiftCOMMON STOCK 240 $0.00 $0.00
Disclosure

SEC source: 0000831641-18-000024 · wf-form4_151942015635392.xml · nonDerivative · entry 2

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,021

F3 · kind: The reporting person donated 240 shares of common stock on February 22, 2018.

F2 · price: Bona fide gift. No compensation was given to the donor for the gifting of shares.

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February 22, 2018 Filed Feb 23, 2018 21:09 UTC TETRA TECH INC TTEK · Entity 3570 GiftCOMMON STOCK 260 $0.00 $0.00
Disclosure

SEC source: 0000831641-18-000024 · wf-form4_151942015635392.xml · nonDerivative · entry 1

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,261

F1 · kind: The reporting person donated 260 shares of common stock on February 22, 2018.

F2 · price: Bona fide gift. No compensation was given to the donor for the gifting of shares.

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November 21, 2017 Filed Nov 22, 2017 21:26 UTC TETRA TECH INC TTEK · Entity 3570 GrantCOMMON STOCK 1,701 $0.00 $0.00
Disclosure

SEC source: 0000831641-17-000108 · wf-form4_151138599346741.xml · nonDerivative · entry 2

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,521

F2 · shares: Each performance share unit ("PSU") represents the right to receive one share of Common Stock. The PSUs awarded cliff-vest after a 3-year performance period. The Performance Period was the Company's fiscal years 2015, 2016 and 2017. The number of PSUs earned by the Awardee for the Performance Period was determined at the end of the Performance Period by measuring relative total shareholder return ("TSR"), with equal weight given to the selected industry peer group and to the S&P 1000. The TSR peer group performance percentile was 89%, and the TSR S&P 1000 performance percentile was 82%. Straight line interpolation determined the vesting credit percentage. Therefore, 189% of the 900 PSUs awarded on November 21, 2014 were earned and vested on November 21, 2017.

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November 21, 2017 Filed Nov 22, 2017 21:26 UTC TETRA TECH INC TTEK · Entity 3570 GrantCOMMON STOCK 1,800 $0.00 $0.00
Disclosure

SEC source: 0000831641-17-000108 · wf-form4_151138599346741.xml · nonDerivative · entry 1

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,820

F1 · shares: Each performance share unit ("PSU") represents the right to receive one share of Common Stock. The PSUs awarded cliff-vest after a 3-year performance period. The Performance Period was the Company's fiscal years 2015, 2016 and 2017. The number of PSUs earned by the Awardee was determined at the end of the Performance Period by measuring earnings per share ("EPS") growth, which was 35% year-over-year growth. Therefore, 200% of the 900 PSUs awarded on November 21, 2014 were earned and vested on November 21, 2017.

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November 17, 2017 Filed Nov 21, 2017 22:18 UTC TETRA TECH INC TTEK · Entity 3570 GrantSTOCK OPTION (RIGHT TO BUY) · Derivative 4,200 $0.00 Strike: $47.95 $0.00
Disclosure

SEC source: 0000831641-17-000066 · wf-form4_151130267979378.xml · derivative · entry 2

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,200

Underlying: COMMON STOCK · 4,200 shares

Expires 2027-11-17

F2 · derivative.exercise_date: The option becomes exercisable as to 100% of the shares on the anniversary of the grant date.

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November 17, 2017 Filed Nov 21, 2017 22:18 UTC TETRA TECH INC TTEK · Entity 3570 GrantCOMMON STOCK 900 $0.00 $0.00
Disclosure

SEC source: 0000831641-17-000066 · wf-form4_151130267979378.xml · nonDerivative · entry 1

Volpi Kirsten M · CIK 0001582882 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,020

F1 · shares: 900 restricted stock units (RSUs) were awarded to the reporting person on November 17, 2017. The RSUs will become vested as to 100% of the shares on November 18, 2018.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.