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TTEKNasdaq
TETRA TECH INC
Services-Engineering Services · DE · CIK 831641
Tetra Tech provides high-end consulting and engineering services for water, environment, and sustainable infrastructure
$7.38B
Market cap
$28.88
Last close
-1.3%
1D
+6.4%
5D
2.4M
Volume
Price · last 39 sessions-8.8%
May 4L $26.18 · H $31.67Jun 29
170
Total filings
May 1, 2026
Last filing
09/27
Fiscal year end
8-KResults of Operations · Company UpdateApr 29, 20268-KExecutive Change · Company UpdateMar 26, 20268-KExecutive Change · Shareholder VoteFeb 20, 20268-KResults of Operations · Company UpdateJan 28, 20268-KExecutive Change · Company UpdateJan 6, 20268-KExecutive Change · Company UpdateDec 22, 20258-KResults of Operations · Company UpdateNov 12, 20258-KExecutive Change · Company UpdateOct 7, 20258-KResults of Operations · Company UpdateJul 30, 20258-KMaterial Agreement · Results of OperationsMay 7, 20258-KExecutive Change · Shareholder VoteFeb 28, 20258-KResults of Operations · Company UpdateJan 30, 20258-KCompany UpdateJan 17, 20258-KResults of Operations · Company UpdateNov 13, 20248-KBylaw AmendmentSep 6, 20248-KExecutive Change · Company UpdateAug 2, 20248-KResults of Operations · Company UpdateJul 31, 20248-KExecutive ChangeMay 24, 20248-KResults of Operations · Company UpdateMay 1, 20248-KShareholder VoteMar 1, 20248-KResults of Operations · Company UpdateJan 31, 20248-KResults of Operations · Company UpdateNov 15, 20238-KMaterial Agreement · New Debt / ObligationAug 22, 20238-KResults of Operations · Company UpdateAug 9, 20238-KResults of Operations · Company UpdateMay 10, 20238-KExecutive ChangeMay 8, 20238-KShareholder VoteMar 3, 20238-KResults of Operations · Company UpdateFeb 1, 20238-KAcquisition / Disposition · Reg FD DisclosureJan 24, 20238-KReg FD DisclosureDec 12, 20228-KExecutive Change · Company UpdateNov 15, 20228-KBylaw AmendmentNov 10, 20228-KResults of Operations · Company UpdateNov 9, 20228-KReg FD DisclosureNov 3, 20228-KMaterial Agreement · Agreement TerminatedOct 28, 20228-KReg FD DisclosureOct 12, 20228-KMaterial Agreement · Security-Holder RightsOct 11, 20228-KMaterial Agreement · New Debt / ObligationSep 26, 20228-KResults of Operations · Company UpdateAug 3, 20228-KExecutive Change · Company UpdateAug 2, 20228-KResults of Operations · Company UpdateMay 4, 20228-KShareholder VoteMar 4, 20228-KExecutive Change · Company UpdateFeb 22, 20228-KMaterial Agreement · Security-Holder RightsFeb 22, 20228-KResults of Operations · Company UpdateFeb 2, 20228-KResults of Operations · Company UpdateNov 17, 20218-KCompany UpdateOct 7, 20218-KResults of Operations · Company UpdateJul 28, 20218-KResults of Operations · Company UpdateApr 28, 20218-KShareholder VoteFeb 25, 20218-KResults of Operations · Company UpdateJan 27, 20218-KResults of Operations · Company UpdateNov 12, 20208-KResults of Operations · Company UpdateJul 29, 20208-KResults of OperationsJun 9, 20208-KResults of Operations · Company UpdateApr 29, 20208-KShareholder VoteFeb 27, 20208-KResults of Operations · Company UpdateJan 29, 20208-KResults of Operations · Company UpdateNov 13, 20198-KExecutive Change · Company UpdateOct 2, 20198-KResults of Operations · Company UpdateJul 31, 20198-KResults of Operations · Company UpdateMay 1, 20198-KShareholder VoteMar 1, 20198-KResults of Operations · Company UpdateJan 30, 20198-KExecutive Change · Results of OperationsNov 7, 20188-KExecutive Change · Material AgreementAug 1, 20188-KResults of Operations · Company UpdateMay 2, 20188-KExecutive Change · Shareholder VoteMar 9, 20188-KResults of Operations · Company UpdateJan 31, 20188-KExecutive Change · Company UpdateJan 22, 20188-KExecutive Change · Results of OperationsNov 9, 20178-KResults of Operations · Company UpdateAug 3, 20178-KResults of Operations · Company UpdateMay 4, 20178-KShareholder VoteMar 3, 20178-KResults of Operations · Company UpdateFeb 2, 20178-KExecutive Change · Results of OperationsNov 10, 20168-KResults of Operations · Company UpdateJul 28, 20168-KResults of Operations · Company UpdateApr 28, 20168-KShareholder VoteMar 4, 20168-KResults of Operations · Company UpdateJan 28, 20168-KCompany UpdateJan 19, 2016
Insider Activity
In the 90 days to Feb 4, 2026: 1 sold $401K.
| Date | Insider | Action | Shares | Price | Value |
|---|---|---|---|---|---|
| Feb 4, 2026 | Carter Brian NSVP, Corporate Controller | Sell | 9,979 | $40.23 | $401K |
Open-market buys & sells (Form 4, transaction codes P/S). Source: SEC structured insider data.
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