Insider at

04

Insider transactions

05
0 buys (P) 1 sells (S) Net: $-401,355 + 89 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

89 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Feb. 4, 2026 TTEK S 9,979 $40.22 $401,355 46,496 Direct -17.67% Disposed -17.1% (price as of 2026-10-05)
Feb. 9, 2024 TTEK S 5,580 $176.52 $984,982 8,360 Direct -40.03% Disposed -5.6% (price as of 2026-10-05)
Dec. 4, 2023 TTEK S 1,474 $165.58 $244,065 8,360 Direct -14.99% Disposed 0.6% (price as of 2026-10-05)
June 7, 2023 TTEK S 2,234 $156.91 $350,537 7,818 Direct -22.22% Disposed 6.2% (price as of 2026-10-05)
Nov. 29, 2021 TTEK S 3,015 $189.44 $571,162 7,143 Direct -29.68% Disposed -12.0% (price as of 2026-10-05)
Feb. 22, 2021 TTEK S 6,459 $141.24 $912,269 6,790 Direct -48.75% Disposed 18.0% (price as of 2026-10-05)
Nov. 23, 2020 TTEK S 3,165 $122.10 $386,446 6,790 Direct -31.79% Disposed 36.5% (price as of 2026-10-05)
Feb. 10, 2020 TTEK S 16,163 $95.29 $1,540,172 6,851 Direct -70.23% Disposed 74.9% (price as of 2026-10-05)
Dec. 10, 2019 TTEK S 3,099 $86.00 $266,514 6,851 Direct -31.15% Disposed 93.8% (price as of 2026-10-05)
Feb. 14, 2019 TTEK S 10,764 $57.96 $623,881 7,430 Direct -59.16% Disposed 187.5% (price as of 2026-10-05)
Nov. 26, 2018 TTEK S 8,215 $62.28 $511,630 7,430 Direct -52.51% Disposed 167.6% (price as of 2026-10-05)

Showing latest 100 of 169 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.

06
DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
Nov. 30, 2025 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (1,520) · · 1,520 Disposed
Nov. 30, 2025 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (1,228) · · 1,228 Disposed
Nov. 19, 2025 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (5,612) · · 5,612 Acquired
Nov. 18, 2025 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (995) · · 995 Disposed
Nov. 18, 2025 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (1,265) · · 1,265 Disposed
Nov. 30, 2024 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (1,520) · · 1,520 Disposed
Nov. 20, 2024 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (4,909) · · 4,909 Acquired
Nov. 18, 2024 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) [F3] COMMON STOCK $0.00 · 1,270 Disposed
Nov. 18, 2024 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) [F3] COMMON STOCK $0.00 · 995 Disposed
Nov. 18, 2024 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) [F3] COMMON STOCK $0.00 · 1,535 Disposed
Feb. 9, 2024 TTEK STOCK OPTION (RIGHT TO BUY) COMMON STOCK (5,580) $47.95 Nov. 17, 2027 5,580 Disposed
Nov. 21, 2023 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) [F3] COMMON STOCK (1,214) $0.00 · 1,214 Acquired
Nov. 18, 2023 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (254) $0.00 · 254 Disposed
Nov. 18, 2023 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (199) $0.00 · 199 Disposed
Nov. 18, 2023 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (307) $0.00 · 307 Disposed
Nov. 18, 2023 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (407) $0.00 · 407 Disposed
Nov. 18, 2022 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (199) $0.00 · 199 Disposed
Nov. 18, 2022 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (308) $0.00 · 308 Disposed
Nov. 18, 2022 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (407) $0.00 · 407 Disposed
Nov. 18, 2022 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (539) $0.00 · 539 Disposed
Nov. 16, 2022 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (1,014) $0.00 · 1,014 Acquired
Nov. 23, 2021 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (796) $0.00 Nov. 18, 2025 796 Acquired
Nov. 18, 2021 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (308) $0.00 Nov. 19, 2024 308 Disposed
Nov. 18, 2021 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (407) $0.00 Nov. 21, 2023 407 Disposed
Nov. 18, 2021 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (539) $0.00 Nov. 18, 2022 539 Disposed
Feb. 22, 2021 TTEK STOCK OPTION (RIGHT TO BUY) COMMON STOCK (6,459) $40.80 Nov. 18, 2026 6,459 Disposed
Nov. 19, 2020 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (1,230) $0.00 Nov. 19, 2024 1,230 Acquired
Nov. 18, 2020 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (408) $0.00 Nov. 21, 2023 408 Disposed
Nov. 18, 2020 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (539) $0.00 Nov. 18, 2022 539 Disposed
Feb. 10, 2020 TTEK STOCK OPTION (RIGHT TO BUY) COMMON STOCK (7,548) $27.26 Nov. 21, 2022 7,548 Disposed
Feb. 10, 2020 TTEK STOCK OPTION (RIGHT TO BUY) COMMON STOCK (8,615) $27.16 Nov. 20, 2025 8,615 Disposed
Nov. 21, 2019 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (1,629) · Nov. 18, 2023 1,629 Acquired
Nov. 18, 2019 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (539) · Nov. 18, 2022 539 Disposed
Feb. 14, 2019 TTEK STOCK OPTION (RIGHT TO BUY) COMMON STOCK (10,764) $28.58 Nov. 22, 2021 10,764 Disposed
Nov. 15, 2018 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (2,156) · Nov. 18, 2022 2,156 Acquired
Nov. 27, 2017 TTEK STOCK OPTION (RIGHT TO BUY) COMMON STOCK (10,000) $24.26 Nov. 16, 2020 10,000 Disposed
Nov. 17, 2017 TTEK STOCK OPTION (RIGHT TO BUY) COMMON STOCK (5,580) $47.95 Nov. 17, 2027 5,580 Acquired
Nov. 18, 2016 TTEK STOCK OPTION (RIGHT TO BUY) COMMON STOCK (6,459) $40.80 Nov. 18, 2026 6,459 Acquired
Nov. 16, 2016 TTEK RESTRICTED STOCK UNITS COMMON STOCK (500) $0.00 Nov. 16, 2016 500 Disposed
Nov. 14, 2016 TTEK STOCK OPTION (RIGHT TO BUY) COMMON STOCK (5,000) $21.86 Aug. 1, 2019 5,000 Disposed
Nov. 20, 2015 TTEK STOCK OPTION (RIGHT TO BUY) COMMON STOCK (8,615) $27.16 Nov. 20, 2025 8,615 Acquired
Nov. 16, 2015 TTEK RESTRICTED STOCK UNITS COMMON STOCK (500) $0.00 Nov. 16, 2016 500 Disposed
Nov. 11, 2015 TTEK RESTRICTED STOCK UNITS COMMON STOCK (250) $0.00 Nov. 11, 2015 250 Disposed
Nov. 21, 2014 TTEK EMPLOYEE STOCK OPTION (RIGHT TO BUY) COMMON STOCK (7,548) $27.26 Nov. 21, 2022 7,548 Acquired
Nov. 16, 2014 TTEK RESTRICTED STOCK UNITS COMMON STOCK (500) $0.00 Nov. 16, 2016 500 Disposed
Nov. 11, 2014 TTEK RESTRICTED STOCK UNITS COMMON STOCK (250) $0.00 Nov. 11, 2015 250 Disposed
Nov. 22, 2013 TTEK EMPLOYEE STOCK OPTION (RIGHT TO BUY) COMMON STOCK (10,764) $28.58 Nov. 22, 2021 10,764 Acquired
Nov. 16, 2013 TTEK RESTRICTED STOCK UNITS COMMON STOCK (500) $0.00 Nov. 16, 2016 500 Disposed
Nov. 11, 2013 TTEK RESTRICTED STOCK UNITS COMMON STOCK (250) $0.00 Nov. 11, 2015 250 Disposed
Nov. 16, 2012 TTEK EMPLOYEE STOCK OPTION (RIGHT TO BUY) COMMON STOCK (10,000) $24.26 Nov. 16, 2020 10,000 Acquired
Nov. 16, 2012 TTEK RESTRICTED STOCK UNITS COMMON STOCK (2,000) · Nov. 16, 2016 2,000 Acquired
Nov. 11, 2012 TTEK RESTRICTED STOCK UNIT COMMON STOCK (250) $0.00 Nov. 11, 2015 250 Disposed

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

Initial ownership (Form 3) 2 holdings

07

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

DateTickerSecuritySharesOwnership
Nov. 14, 2012 TTEK STOCK OPTION→ COMMON STOCK (5,000) 5,000 Direct
Nov. 14, 2012 TTEK RESTRICTED STOCK UNIT [F2]→ COMMON STOCK (1,000) 1,000 Direct