Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 81 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

81 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Sept. 2, 2021 TTEK S 3,878 $146.00 $566,188 33,587 Direct -10.35% Disposed 14.1% (price as of 2026-10-05)
Feb. 19, 2021 TTEK S 8,060 $138.90 $1,119,534 37,465 Direct -17.70% Disposed 20.0% (price as of 2026-10-05)
Feb. 19, 2021 TTEK S 2,648 $138.95 $367,940 45,525 Direct -5.50% Disposed 19.9% (price as of 2026-10-05)
Feb. 18, 2021 TTEK S 2,722 $137.25 $373,594 45,525 Direct -5.64% Disposed 21.4% (price as of 2026-10-05)
Nov. 23, 2020 TTEK S 10,030 $123.00 $1,233,690 46,239 Direct -17.83% Disposed 35.5% (price as of 2026-10-05)
Aug. 24, 2020 TTEK S 2,936 $93.51 $274,545 42,872 Direct -6.41% Disposed 78.2% (price as of 2026-10-05)
Aug. 20, 2020 TTEK S 4,000 $94.44 $377,760 42,872 Direct -8.53% Disposed 76.5% (price as of 2026-10-05)
Aug. 19, 2020 TTEK S 1,016 $95.07 $96,591 42,872 Direct -2.31% Disposed 75.3% (price as of 2026-10-05)
Feb. 13, 2020 TTEK S 3,996 $96.00 $383,616 42,872 Direct -8.53% Disposed 73.6% (price as of 2026-10-05)
Feb. 12, 2020 TTEK S 10,175 $97.77 $994,810 42,872 Direct -19.18% Disposed 70.5% (price as of 2026-10-05)
Feb. 12, 2020 TTEK S 6,004 $96.00 $576,384 42,872 Direct -12.28% Disposed 73.6% (price as of 2026-10-05)
Sept. 12, 2019 TTEK S 6,000 $82.50 $495,000 40,157 Direct -13.00% Disposed 102.0% (price as of 2026-10-05)
Sept. 12, 2019 TTEK S 5,510 $83.00 $457,330 40,157 Direct -12.07% Disposed 100.8% (price as of 2026-10-05)
Sept. 6, 2019 TTEK S 3,000 $83.00 $249,000 40,157 Direct -6.95% Disposed 100.8% (price as of 2026-10-05)
March 16, 2018 TTEK S 15,089 $51.09 $770,897 36,696 Direct -29.14% Disposed 226.2% (price as of 2026-10-05)
March 13, 2018 TTEK S 200 $52.09 $10,418 36,696 Direct -0.54% Disposed 219.9% (price as of 2026-10-05)
March 12, 2018 TTEK S 1,461 $52.25 $76,337 36,696 Direct -3.83% Disposed 218.9% (price as of 2026-10-05)
March 6, 2018 TTEK S 16,750 $50.03 $838,002 36,573 Direct -31.41% Disposed 233.1% (price as of 2026-10-05)
May 9, 2017 TTEK S 16,750 $46.30 $775,525 28,462 Direct -37.05% Disposed 259.9% (price as of 2026-10-05)

Showing latest 100 of 290 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. 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 (539) $0.00 Nov. 18, 2022 539 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 (308) $0.00 Nov. 19, 2024 308 Disposed
Feb. 19, 2021 TTEK STOCK OPTION (RIGHT TO BUY) COMMON STOCK (2,648) $47.95 Nov. 17, 2027 2,648 Disposed
Feb. 18, 2021 TTEK STOCK OPTION (RIGHT TO BUY) COMMON STOCK (1,950) $47.95 Nov. 17, 2027 1,950 Disposed
Nov. 23, 2020 TTEK STOCK OPTION (RIGHT TO BUY) COMMON STOCK (7,095) $40.80 Nov. 18, 2026 7,095 Disposed
Nov. 23, 2020 TTEK STOCK OPTION (RIGHT TO BUY) COMMON STOCK (2,935) $27.16 Nov. 20, 2025 2,935 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
Aug. 24, 2020 TTEK STOCK OPTION (RIGHT TO BUY) COMMON STOCK (2,936) $27.16 Nov. 20, 2025 2,936 Disposed
Aug. 20, 2020 TTEK STOCK OPTION (RIGHT TO BUY) COMMON STOCK (4,000) $27.16 Nov. 20, 2025 4,000 Disposed
Aug. 19, 2020 TTEK STOCK OPTION (RIGHT TO BUY) COMMON STOCK (1,016) $27.16 Nov. 20, 2025 1,016 Disposed
Feb. 13, 2020 TTEK STOCK OPTION (RIGHT TO BUY) COMMON STOCK (10,175) $27.26 Nov. 21, 2024 10,175 Disposed
Feb. 13, 2020 TTEK STOCK OPTION (RIGHT TO BUY) COMMON STOCK (3,996) $24.26 Nov. 16, 2022 3,996 Disposed
Feb. 12, 2020 TTEK STOCK OPTION (RIGHT TO BUY) COMMON STOCK (6,004) $24.26 Nov. 16, 2022 6,004 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 Acquired
Sept. 12, 2019 TTEK STOCK OPTION (RIGHT TO BUY) COMMON STOCK (6,000) $28.58 Nov. 22, 2021 6,000 Disposed
Sept. 12, 2019 TTEK STOCK OPTION (RIGHT TO BUY) COMMON STOCK (5,510) $28.58 Nov. 22, 2021 5,510 Disposed
Sept. 6, 2019 TTEK STOCK OPTION (RIGHT TO BUY) COMMON STOCK (3,000) $28.58 Nov. 22, 2021 3,000 Disposed
Nov. 15, 2018 TTEK RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) COMMON STOCK (2,156) · Nov. 18, 2022 2,156 Acquired
March 16, 2018 TTEK STOCK OPTION (RIGHT TO BUY) COMMON STOCK (15,089) $22.53 Nov. 11, 2019 15,089 Disposed
March 13, 2018 TTEK STOCK OPTION (RIGHT TO BUY) COMMON STOCK (200) $22.53 Nov. 11, 2019 200 Disposed
March 12, 2018 TTEK STOCK OPTION (RIGHT TO BUY) COMMON STOCK (1,461) $22.53 Nov. 11, 2019 1,461 Disposed
March 6, 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 (6,130) $47.95 Nov. 17, 2027 6,130 Acquired
May 9, 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 (7,095) $40.80 Nov. 18, 2026 7,095 Acquired
Nov. 16, 2016 TTEK RESTRICTED STOCK UNITS COMMON STOCK (500) $0.00 Nov. 16, 2016 500 Disposed
July 22, 2016 TTEK EMPLOYEE STOCK OPTION (RIGHT TO BUY) COMMON STOCK (4,750) $16.98 Nov. 14, 2016 4,750 Disposed
July 21, 2016 TTEK EMPLOYEE STOCK OPTION (RIGHT TO BUY) COMMON STOCK (4,000) $16.98 Nov. 14, 2016 4,000 Disposed
June 23, 2016 TTEK EMPLOYEE STOCK OPTION (RIGHT TO BUY) COMMON STOCK (8,000) $16.98 Nov. 14, 2016 8,000 Disposed
Nov. 20, 2015 TTEK STOCK OPTION (RIGHT TO BUY) COMMON STOCK (10,887) $27.16 Nov. 20, 2025 10,887 Acquired
Nov. 16, 2015 TTEK RESTRICTED STOCK UNITS COMMON STOCK (500) $0.00 Nov. 16, 2016 500 Disposed
Aug. 3, 2015 TTEK STOCK OPTION COMMON STOCK (16,750) $23.68 Nov. 16, 2015 16,750 Disposed
Nov. 21, 2014 TTEK EMPLOYEE STOCK OPTION (RIGHT TO BUY) COMMON STOCK (10,175) $27.26 Nov. 21, 2022 10,175 Acquired
Nov. 16, 2014 TTEK RESTRICTED STOCK UNITS COMMON STOCK (500) $0.00 Nov. 16, 2016 500 Disposed
Aug. 19, 2014 TTEK STOCK OPTION COMMON STOCK (8,022) $17.71 Dec. 5, 2014 8,022 Disposed
Aug. 19, 2014 TTEK STOCK OPTION COMMON STOCK (7,730) $17.71 Dec. 5, 2014 7,730 Disposed
Aug. 18, 2014 TTEK STOCK OPTION COMMON STOCK (13,021) $15.79 Jan. 18, 2015 13,021 Disposed
Aug. 18, 2014 TTEK STOCK OPTION COMMON STOCK (12) $15.79 Jan. 18, 2015 12 Disposed
Aug. 18, 2014 TTEK STOCK OPTION COMMON STOCK (998) $17.71 Dec. 5, 2014 998 Disposed
Aug. 7, 2014 TTEK STOCK OPTION COMMON STOCK (3,301) $15.79 Jan. 18, 2015 3,301 Disposed
Aug. 6, 2014 TTEK STOCK OPTION COMMON STOCK (8,666) $15.79 Jan. 18, 2015 8,666 Disposed
Feb. 18, 2014 TTEK STOCK OPTION COMMON STOCK (500) $18.07 March 6, 2014 500 Disposed
Feb. 18, 2014 TTEK STOCK OPTION COMMON STOCK (7,013) $18.07 March 6, 2014 7,013 Disposed
Feb. 13, 2014 TTEK STOCK OPTION COMMON STOCK (2,500) $18.07 March 6, 2014 2,500 Disposed
Feb. 13, 2014 TTEK STOCK OPTION COMMON STOCK (5,000) $18.07 March 6, 2014 5,000 Disposed
Feb. 12, 2014 TTEK STOCK OPTION COMMON STOCK (4,987) $18.07 March 6, 2014 4,987 Disposed
Feb. 12, 2014 TTEK STOCK OPTION COMMON STOCK (5,000) $18.07 March 6, 2014 5,000 Disposed
Dec. 13, 2013 TTEK STOCK OPTION COMMON STOCK (13,500) $24.56 Jan. 20, 2014 13,500 Disposed
Dec. 12, 2013 TTEK STOCK OPTION COMMON STOCK (10,000) $24.56 Jan. 20, 2014 10,000 Disposed
Nov. 22, 2013 TTEK EMPLOYEE STOCK OPTION (RIGHT TO BUY) COMMON STOCK (14,510) $28.58 Nov. 22, 2021 14,510 Acquired
Nov. 18, 2013 TTEK STOCK OPTION COMMON STOCK (1,500) $24.56 Jan. 20, 2014 1,500 Disposed
Nov. 16, 2013 TTEK RESTRICTED STOCK UNITS COMMON STOCK (500) $0.00 Nov. 16, 2016 500 Disposed
Nov. 16, 2012 TTEK RESTRICTED STOCK UNITS COMMON STOCK (2,000) · Nov. 16, 2016 2,000 Acquired
Nov. 16, 2012 TTEK EMPLOYEE STOCK OPTION (RIGHT TO BUY) COMMON STOCK (10,000) $24.26 Nov. 16, 2020 10,000 Acquired
May 24, 2012 TTEK EMPLOYEE STOCK OPTION COMMON STOCK (12,212) $12.84 Dec. 23, 2012 12,212 Disposed
May 24, 2012 TTEK EMPLOYEE STOCK OPTION COMMON STOCK (10,000) $12.84 Dec. 23, 2012 10,000 Disposed
March 9, 2012 TTEK STOCK OPTION COMMON STOCK (5,000) $12.84 Dec. 23, 2012 5,000 Disposed
March 9, 2012 TTEK STOCK OPTION COMMON STOCK (5,000) $12.84 Dec. 23, 2012 5,000 Disposed
Nov. 11, 2011 TTEK EMPLOYEE STOCK OPTION (RIGHT TO BUY) COMMON STOCK (16,750) $22.53 Nov. 11, 2019 16,750 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. 7, 2009 TTEK STOCK OPTION COMMON STOCK (7,788) $12.84 Dec. 23, 2012 7,788 Disposed
Aug. 7, 2009 TTEK STOCK OPTION COMMON STOCK (8,000) $20.00 Dec. 18, 2011 8,000 Disposed
Aug. 4, 2009 TTEK STOCK OPTION COMMON STOCK (16,920) $21.80 Jan. 16, 2011 16,920 Disposed
Aug. 4, 2009 TTEK STOCK OPTION COMMON STOCK (8,080) $21.80 Jan. 16, 2011 8,080 Disposed
Aug. 4, 2009 TTEK STOCK OPTION COMMON STOCK (10,000) $20.00 Dec. 18, 2011 10,000 Disposed
Nov. 14, 2008 TTEK EMPLOYEE STOCK OPTION (RIGHT TO BUY) COMMON STOCK (16,750) $16.98 Nov. 14, 2016 16,750 Acquired
May 29, 2008 TTEK STOCK OPTION COMMON STOCK (12,500) $8.72 Nov. 15, 2009 12,500 Disposed
May 29, 2008 TTEK STOCK OPTION COMMON STOCK (100) $13.28 Dec. 9, 2008 100 Disposed
May 29, 2008 TTEK STOCK OPTION COMMON STOCK (275) $13.28 Dec. 9, 2008 275 Disposed
May 15, 2008 TTEK STOCK OPTION COMMON STOCK (4,000) $13.28 Dec. 9, 2008 4,000 Disposed
May 15, 2008 TTEK STOCK OPTION COMMON STOCK (1,100) $13.28 Dec. 9, 2008 1,100 Disposed
May 15, 2008 TTEK STOCK OPTION COMMON STOCK (3,900) $13.28 Dec. 9, 2008 3,900 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
Nov. 22, 2006 TTEK STOCK OPTION COMMON STOCK (3,906) $10.24 Dec. 18, 2007 3,906 Disposed
Nov. 22, 2006 TTEK STOCK OPTION COMMON STOCK (854) $7.78 Dec. 12, 2006 854 Disposed
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).

Compensation (DEF 14A)

08

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

Fiscal yearSalaryBonusStock awards Option awardsNon-equity incentivePension changeOtherTotal
2018 $368,961 · $307,303 $90,663 $205,000 · $42,818 $1,014,745
2001 · · · · · · · ·

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