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Tetra Tech Inc

TTEK
Exchange
Nasdaq
Industry
Services-Engineering Services
SEC CIK
0000831641

No open-market purchases or sales by Tetra Tech Inc insiders were filed in the last 90 days; 555 institutions reported holding it in 13F filings for Q2 2026, worth $7.32B in total; no superinvestor holds it.

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by Tetra Tech Inc insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
0 filings
Open-market sells
0 filings
Insiders trading
0
Net value
$0
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for Tetra Tech Inc, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for Tetra Tech Inc
NameTitleLast reported holdingLast filingFilings, past year
Volpi Kirsten MDirector74,218Aug 6, 20265
Feeler Jeffrey RDirector1,900May 15, 20262
Thornburg Eric WDirector–Apr 28, 20261
Ritrievi Kimberly EDirector192,259Mar 18, 20263
Argus Roger RPresident and CEO39,890Feb 20, 20263
Obiaya ChristianaDirector9,666Feb 20, 20263
Burdick Steven MEVP, CFO138,251Feb 6, 20263
Carter Brian NSVP, Corporate Controller46,496Feb 6, 20262
Hardwick M SusanDirector–Jan 28, 20261
Birkenbeuel GaryDirector51,032Jan 14, 20262
Batrack Dan LChairman and CEO332,498Dec 2, 20252
Shoemaker Leslie LEVP, Chief Sustainability325,821Dec 2, 20252
Hopson Preston IIIEVP, Chief Legal/Human Capital83,142Dec 2, 20252
Gandhi PrashantDirector16,553Dec 2, 20252
Douglas John M.Director610Mar 3, 20250
Maguire Joanne MDirector97,785Oct 2, 20240
Hudkins JillPresident2,828Apr 30, 20240
Thompson J KennethDirector10,985Feb 16, 20240
Lewis J ChristopherDirector57,875Dec 16, 20220
Amidon Derek GSVP, Comm./Int'l Svcs. Group11,141Nov 22, 20220
O'Rourke Brendan M.SVP, Enterprise Risk Mgmt.1,344Nov 18, 20220
Haden Patrick CDirector3,062Mar 21, 20220
Brownlie William RSVP, Chief Engineer85,376Mar 21, 20220
Lemmon Richard ASVP, Corporate Administration35,775Dec 8, 20210
Christensen Craig LSVP, CIO36,407Nov 30, 20210
Teufele BernardSVP, Canada and South America12,867Nov 24, 20210
Rynning Mark ASVP, R&S Infrastructure1,164Nov 22, 20210

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
May 15, 2026 (view filing)May 15Same dayFeeler Jeffrey RDirectorPPurchase+1.90K$26.41+$50.2KNew position1.90K after
Feb 6, 2026 (view filing)Feb 42 daysCarter Brian NSVP, Corporate ControllerSSale−9.98K$40.23−$401.5K−17.7%46.5K after
Aug 15, 2025 (view filing)Aug 141 dayBirkenbeuel GaryDirectorSSale−2.39K$36.00−$86.0K−6.0%37.7K after
Feb 6, 2025 (view filing)Feb 42 daysVolpi Kirsten MDirectorSSale−10.1K$34.33−$347.3K−14.4%60.2K after3 lots
Sep 12, 2024 (view filing)Sep 111 dayBurdick Steven MEVP, CFOSSale−36.8K$46.57−$1.72M−24.6%112.6K after
Sep 12, 2024 (view filing)Sep 111 dayRitrievi Kimberly EDirectorSSale−6.50K$46.48−$302.1K−4.3%143.2K after
Sep 12, 2024 (view filing)Sep 102 daysShoemaker Leslie LEVP, Chief SustainabilitySSale−78.4K$46.11−$3.62M−20.9%296.0K after
Sep 12, 2024 (view filing)Sep 102 daysVolpi Kirsten MDirectorSSale−1.95K$46.00−$89.7K−3.0%63.8K after
Aug 8, 2024 (view filing)Aug 62 daysBatrack Dan LCHAIRMAN AND CEOSSale−17.9K$227.72−$4.08M−41.9%24.9K after
Aug 8, 2024 (view filing)Aug 71 dayHopson Preston IIISVP, General CounselSSale−5.00K$233.07−$1.17M−36.4%8.74K after
Jun 14, 2024 (view filing)Jun 131 dayShoemaker Leslie LEVP, Chief SustainabilitySSale−11.2K$211.83−$2.36M−13.0%74.9K after
Feb 22, 2024 (view filing)Feb 22Same dayBurdick Steven MEVP, CFOSSale−7.51K$175.67−$1.32M−20.1%29.9K after
Feb 16, 2024 (view filing)Feb 142 daysThompson J KennethDirectorSSale−3.50K$177.24−$620.3K−24.2%11.0K after
Feb 13, 2024 (view filing)Feb 94 daysCarter Brian NSVP, Corporate ControllerSSale−5.58K$176.52−$985.0K−40.0%8.36K after
Feb 7, 2024 (view filing)Feb 52 daysBurdick Steven MEVP, CFOSSale−7.13K$165.01−$1.18M−16.0%37.4K after
Feb 7, 2024 (view filing)Feb 52 daysThompson J KennethDirectorSSale−8.40K$165.00−$1.39M−36.7%14.5K after
Dec 5, 2023 (view filing)Dec 14 daysVolpi Kirsten MDirectorSSale−2.23K$162.74−$362.6K−14.6%13.0K after
Dec 5, 2023 (view filing)Dec 41 dayCarter Brian NSVP, Corporate ControllerSSale−1.47K$165.58−$244.1K−15.0%8.36K after
Nov 29, 2023 (view filing)Nov 281 dayBatrack Dan LCHAIRMAN AND CEOSSale−22.0K$161.51−$3.55M−31.2%48.6K after
Nov 28, 2023 (view filing)Nov 271 dayHudkins JillPresidentSSale−906$164.52−$149.1K−26.4%2.52K after
Nov 28, 2023 (view filing)Nov 271 dayArgus Roger RPresident, GS and C/I GroupsSSale−3.67K$163.92−$601.6K−63.4%2.12K after
Nov 22, 2023 (view filing)Nov 21-221 dayHopson Preston IIISVP, General CounselSSale−2.44K$164.60−$402.4K−15.1%13.7K after2 lots
Nov 21, 2023 (view filing)Nov 201 dayVolpi Kirsten MDirectorSSale−559$165.50−$92.5K−4.6%11.6K afterFrom original
Nov 21, 2023 (view filing)Nov 201 dayThompson J KennethDirectorSSale−4.46K$165.78−$739.4K−25.0%13.4K after2 lots
Jun 14, 2023 (view filing)Jun 131 dayThompson J KennethDirectorSSale−2.50K$156.21−$390.5K−12.3%17.8K after
Jun 8, 2023 (view filing)Jun 71 dayCarter Brian NSVP, Corporate ControllerSSale−2.23K$156.91−$350.5K−22.2%7.82K after
Jun 5, 2023 (view filing)Jun 23 daysThompson J KennethDirectorSSale−5.00K$152.31−$761.5K−19.7%20.3K after
Feb 21, 2023 (view filing)Feb 165 daysVolpi Kirsten MDirectorSSale−900$145.74−$131.2K−7.2%11.6K after
Feb 10, 2023 (view filing)Feb 82 daysRitrievi Kimberly EDirectorSSale−1.80K$151.09−$272.0K−5.7%29.9K after
Feb 8, 2023 (view filing)Feb 62 daysBurdick Steven MEVP, CFOSSale−10.5K$151.18−$1.59M−20.9%39.8K after
Dec 16, 2022 (view filing)Dec 151 dayBatrack Dan LCHAIRMAN AND CEOSSale−30.0K$153.63−$4.61M−38.2%48.5K after
Dec 16, 2022 (view filing)Dec 142 daysLewis J ChristopherDirectorSSale−14.6K$157.56−$2.31M−20.2%57.9K after2 lots
Dec 8, 2022 (view filing)Dec 62 daysVolpi Kirsten MDirectorSSale−700$154.61−$108.2K−5.3%12.6K after
Nov 28, 2022 (view filing)Nov 235 daysArgus Roger RSVP, Government Services GroupSSale−4.12K$153.67−$632.4K−66.4%2.08K after
Nov 22, 2022 (view filing)Nov 22Same dayHudkins JillPresidentSSale−2.00K$154.79−$309.6K−40.6%2.93K after2 lots
Nov 22, 2022 (view filing)Nov 211 dayHopson Preston IIISVP, General CounselSSale−3.62K$157.52−$569.6K−25.8%10.4K after
Nov 16, 2022 (view filing)Nov 142 daysThompson J KennethDirectorSSale−3.50K$158.98−$556.4K−13.1%23.3K after
Aug 29, 2022 (view filing)Aug 254 daysLewis J ChristopherDirectorSSale−16.8K$143.62−$2.41M−19.2%70.5K after2 lots
Aug 23, 2022 (view filing)Aug 194 daysVolpi Kirsten MDirectorSSale−1.20K$144.66−$173.6K−9.6%11.3K after
Jun 3, 2022 (view filing)Jun 12 daysVolpi Kirsten MDirectorSSale−550$135.41−$74.5K−4.2%12.5K after
Mar 21, 2022 (view filing)Mar 183 daysBrownlie William RSVP, Chief EngineerSSale−8.97K$165.13−$1.48M−9.3%87.9K after
Mar 21, 2022 (view filing)Mar 174 daysHaden Patrick CDirectorSSale−318$164.55−$52.3K−9.4%3.06K after
Mar 10, 2022 (view filing)Mar 82 daysVolpi Kirsten MDirectorSSale−900$156.34−$140.7K−6.2%13.6K after
Dec 16, 2021 (view filing)Dec 9-107 daysLateBatrack Dan LCHAIRMAN AND CEOSSale−14.5K$174.72−$2.53M−23.1%48.1K after2 lots
Dec 10, 2021 (view filing)Dec 82 daysO'Rourke Brendan M.SVP, Enterprise Risk Mgmt.SSale−3.63K$190.00−$690.3K−75.6%1.18K after
Dec 10, 2021 (view filing)Dec 82 daysBurdick Steven MEVP, CFOSSale−16.1K$188.73−$3.04M−26.7%44.4K after
Dec 9, 2021 (view filing)Dec 72 daysVolpi Kirsten MDirectorSSale−700$189.62−$132.7K−4.6%14.6K after
Dec 8, 2021 (view filing)Dec 62 daysBatrack Dan LCHAIRMAN AND CEOSSale−64.0K$185.75−$11.9M−27.3%170.1K after
Dec 3, 2021 (view filing)Dec 3Same dayBurdick Steven MEVP, CFOSSale−2.79K$185.18−$516.7K−4.4%60.5K after
Nov 30, 2021 (view filing)Nov 291 dayCarter Brian NSVP, Corporate ControllerSSale−3.02K$189.44−$571.2K−29.7%7.14K after