Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 88 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

88 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Sept. 11, 2024 TTEK S 36,830 $46.57 $1,715,173 112,620 Direct -24.64% Disposed -28.9% (price as of 2026-10-02)
Feb. 22, 2024 TTEK S 7,515 $175.67 $1,320,160 29,890 Direct -20.09% Disposed -5.7% (price as of 2026-10-02)
Feb. 5, 2024 TTEK S 7,128 $165.01 $1,176,191 37,405 Direct -16.01% Disposed 0.4% (price as of 2026-10-02)
Feb. 6, 2023 TTEK S 10,515 $151.18 $1,589,658 39,771 Direct -20.91% Disposed 9.5% (price as of 2026-10-02)
Dec. 8, 2021 TTEK S 16,132 $188.73 $3,044,592 44,393 Direct -26.65% Disposed -12.3% (price as of 2026-10-02)
Dec. 3, 2021 TTEK S 2,790 $185.18 $516,652 60,525 Direct -4.41% Disposed -10.6% (price as of 2026-10-02)
Feb. 3, 2021 TTEK S 10,801 $129.45 $1,398,189 55,980 Direct -16.17% Disposed 27.9% (price as of 2026-10-02)
Nov. 18, 2020 TTEK S 19,798 $123.41 $2,443,271 60,489 Direct -24.66% Disposed 34.2% (price as of 2026-10-02)
Aug. 5, 2020 TTEK S 17,622 $91.38 $1,610,298 60,489 Direct -22.56% Disposed 81.2% (price as of 2026-10-02)
Feb. 10, 2020 TTEK S 16,229 $95.27 $1,546,137 60,489 Direct -21.15% Disposed 73.8% (price as of 2026-10-02)
Feb. 6, 2020 TTEK S 23,143 $92.40 $2,138,413 60,489 Direct -27.67% Disposed 79.2% (price as of 2026-10-02)
Nov. 25, 2019 TTEK S 16,000 $87.43 $1,398,880 60,393 Direct -20.94% Disposed 89.4% (price as of 2026-10-02)

Showing latest 100 of 236 transactions

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II) Options, RSUs and convertible securities reported on Form 4 Table II.

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DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
Nov. 30, 2025 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (3,645) · · 3,645 Disposed
Nov. 30, 2025 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (3,682) · · 3,682 Disposed
Nov. 19, 2025 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (19,641) · · 19,641 Acquired
Nov. 18, 2025 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (2,520) · · 2,520 Disposed
Nov. 18, 2025 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (3,170) · · 3,170 Disposed
Nov. 30, 2024 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (3,645) · · 3,645 Disposed
Nov. 20, 2024 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (14,728) · · 14,728 Acquired
Nov. 18, 2024 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) [F2] COMMON STOCK $0.00 · 3,170 Disposed
Nov. 18, 2024 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) [F2] COMMON STOCK $0.00 · 2,520 Disposed
Nov. 18, 2024 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) [F2] COMMON STOCK $0.00 · 3,685 Disposed
Nov. 21, 2023 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) [F3] COMMON STOCK (2,915) $0.00 · 2,915 Acquired
Nov. 18, 2023 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (634) $0.00 · 634 Disposed
Nov. 18, 2023 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (504) $0.00 · 504 Disposed
Nov. 18, 2023 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (738) $0.00 · 738 Disposed
Nov. 18, 2023 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (814) $0.00 · 814 Disposed
Nov. 18, 2022 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (505) $0.00 · 505 Disposed
Nov. 18, 2022 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (738) $0.00 · 738 Disposed
Nov. 18, 2022 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (814) $0.00 · 814 Disposed
Nov. 18, 2022 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (1,000) $0.00 · 1,000 Disposed
Nov. 16, 2022 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (2,535) $0.00 · 2,535 Acquired
Dec. 3, 2021 TTEK STOCK OPTION (RIGHT TO BUY) COMMON STOCK (2,790) $47.95 Nov. 17, 2027 2,790 Disposed
Nov. 23, 2021 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (2,017) $0.00 Nov. 18, 2025 2,017 Acquired
Nov. 18, 2021 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (738) $0.00 Nov. 19, 2024 738 Disposed
Nov. 18, 2021 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (815) $0.00 Nov. 21, 2023 815 Disposed
Nov. 18, 2021 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (1,001) $0.00 Nov. 18, 2022 1,001 Disposed
Nov. 18, 2020 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (2,951) $0.00 Nov. 19, 2024 2,951 Acquired
Nov. 18, 2020 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (815) $0.00 Nov. 21, 2023 815 Disposed
Nov. 18, 2020 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (1,001) $0.00 Nov. 18, 2022 1,001 Disposed
Nov. 18, 2020 TTEK STOCK OPTION (RIGHT TO BUY) COMMON STOCK (8,371) $47.95 Nov. 17, 2027 8,371 Disposed
Nov. 18, 2020 TTEK STOCK OPTION (RIGHT TO BUY) COMMON STOCK (11,427) $40.80 Nov. 18, 2026 11,427 Disposed
Aug. 5, 2020 TTEK STOCK OPTION (RIGHT TO BUY) COMMON STOCK (17,622) $27.16 Nov. 20, 2025 17,622 Disposed
Feb. 10, 2020 TTEK STOCK OPTION (RIGHT TO BUY) COMMON STOCK (16,229) $27.26 Nov. 21, 2022 16,229 Disposed
Feb. 6, 2020 TTEK STOCK OPTION (RIGHT TO BUY) COMMON STOCK (23,143) $28.58 Nov. 22, 2021 23,143 Disposed
Nov. 25, 2019 TTEK EMPLOYEE STOCK OPTION (RIGHT TO BUY) COMMON STOCK (16,000) $24.26 Nov. 16, 2020 16,000 Disposed
Nov. 21, 2019 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (3,258) · Nov. 18, 2023 3,258 Acquired
Nov. 18, 2019 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (1,001) · Nov. 18, 2022 1,001 Acquired
Aug. 19, 2019 TTEK STOCK OPTION (RIGHT TO BUY) COMMON STOCK (27,500) $22.53 Nov. 11, 2019 27,500 Disposed
Nov. 15, 2018 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (4,003) · Nov. 18, 2022 4,003 Acquired
March 13, 2018 TTEK STOCK OPTION (RIGHT TO BUY) COMMON STOCK (16,750) $23.48 Nov. 12, 2018 16,750 Disposed
Nov. 17, 2017 TTEK STOCK OPTION (RIGHT TO BUY) COMMON STOCK (11,161) $47.95 Nov. 17, 2027 11,161 Acquired
May 23, 2017 TTEK COMMON STOCK COMMON STOCK (16,750) $25.55 Nov. 13, 2017 16,750 Disposed
Nov. 18, 2016 TTEK STOCK OPTION (RIGHT TO BUY) COMMON STOCK (11,427) $40.80 Nov. 18, 2026 11,427 Acquired
Nov. 16, 2016 TTEK RESTRICTED STOCK UNITS COMMON STOCK (800) $0.00 Nov. 16, 2016 800 Disposed
July 11, 2016 TTEK EMPLOYEE STOCK OPTION (RIGHT TO BUY) COMMON STOCK (16,750) $16.98 Nov. 14, 2016 16,750 Disposed
Nov. 20, 2015 TTEK STOCK OPTION (RIGHT TO BUY) COMMON STOCK (17,622) $27.16 Nov. 20, 2025 17,622 Acquired
Nov. 16, 2015 TTEK RESTRICTED STOCK UNITS COMMON STOCK (800) $0.00 Nov. 16, 2016 800 Disposed
July 13, 2015 TTEK EMPLOYEE STOCK OPTION (RIGHT TO BUY) COMMON STOCK (16,750) $23.68 Nov. 16, 2015 16,750 Disposed
Nov. 21, 2014 TTEK EMPLOYEE STOCK OPTION (RIGHT TO BUY) COMMON STOCK (16,229) $27.26 Nov. 21, 2022 16,229 Acquired
Nov. 16, 2014 TTEK RESTRICTED STOCK UNITS COMMON STOCK (800) $0.00 Nov. 16, 2016 800 Disposed
Aug. 21, 2014 TTEK STOCK OPTION COMMON STOCK (16,750) $17.71 Dec. 5, 2014 16,750 Disposed
Feb. 12, 2014 TTEK STOCK OPTION COMMON STOCK (25,000) $18.07 March 6, 2014 25,000 Disposed
Nov. 22, 2013 TTEK EMPLOYEE STOCK OPTION (RIGHT TO BUY) COMMON STOCK (23,143) $28.58 Nov. 22, 2021 23,143 Acquired
Nov. 16, 2013 TTEK RESTRICTED STOCK UNITS COMMON STOCK (800) $0.00 Nov. 16, 2016 800 Disposed
Nov. 16, 2012 TTEK EMPLOYEE STOCK OPTION (RIGHT TO BUY) COMMON STOCK (16,000) $24.26 Nov. 16, 2020 16,000 Acquired
Nov. 16, 2012 TTEK RESTRICTED STOCK UNITS COMMON STOCK (3,200) · Nov. 13, 2016 3,200 Acquired
Nov. 11, 2011 TTEK EMPLOYEE STOCK OPTION (RIGHT TO BUY) COMMON STOCK (27,500) $22.53 Nov. 11, 2019 27,500 Acquired
Nov. 12, 2010 TTEK EMPLOYEE STOCK OPTION (RIGHT TO BUY) COMMON STOCK (16,750) $23.48 Nov. 12, 2018 16,750 Acquired
Nov. 13, 2009 TTEK EMPLOYEE STOCK OPTION (RIGHT TO BUY) COMMON STOCK (16,750) $25.55 Nov. 13, 2017 16,750 Acquired
Aug. 20, 2009 TTEK STOCK OPTION COMMON STOCK (17,538) $15.79 Jan. 18, 2015 17,538 Disposed
Aug. 4, 2009 TTEK STOCK OPTION COMMON STOCK (3,156) $24.56 Jan. 20, 2014 3,156 Disposed
Aug. 4, 2009 TTEK STOCK OPTION COMMON STOCK (4,844) $24.56 Jan. 20, 2014 4,844 Disposed
Aug. 4, 2009 TTEK STOCK OPTION COMMON STOCK (7,462) $15.79 Jan. 18, 2015 7,462 Disposed
Nov. 14, 2008 TTEK EMPLOYEE STOCK OPTION (RIGHT TO BUY) COMMON STOCK (16,750) $16.98 Nov. 14, 2016 16,750 Acquired
May 15, 2008 TTEK STOCK OPTION COMMON STOCK (6,000) $14.99 April 14, 2013 6,000 Disposed
Nov. 16, 2007 TTEK EMPLOYEE STOCK OPTION (RIGHT TO BUY) COMMON STOCK (16,750) $23.68 Nov. 16, 2015 16,750 Acquired
Dec. 5, 2006 TTEK EMPLOYEE STOCK OPTION (RIGHT TO BUY) COMMON STOCK (16,750) $17.71 Dec. 5, 2014 16,750 Acquired
March 6, 2006 TTEK EMPLOYEE STOCK OPTION (RIGHT TO BUY) COMMON STOCK (25,000) $18.07 March 6, 2016 25,000 Acquired
Jan. 18, 2005 TTEK EMPLOYEE STOCK OPTION (RIGHT TO BUY) COMMON STOCK (25,000) $15.79 Jan. 18, 2015 25,000 Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 2 holdings

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Securities held when first becoming an insider, per SEC Form 3.

DateTickerSecuritySharesOwnership
Jan. 22, 2004 TTEK STOCK OPTION→ COMMON STOCK (6,000) 6,000 Direct
Jan. 22, 2004 TTEK STOCK OPTION→ COMMON STOCK (8,000) 8,000 Direct

Compensation (DEF 14A)

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Matched by name from proxy statements (DEF 14A) — verify against the filing.

Fiscal yearSalaryBonusStock awards Option awardsNon-equity incentivePension changeOtherTotal
2020 $541,346 · $761,467 · $525,911 · $45,620 $1,874,344
2019 · · $747,514 · $594,411 · $49,022 $1,893,351
2018 $487,577 · $559,456 $165,071 $410,000 · $42,783 $1,664,887

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.