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TTEK on Nasdaq

Tetra Tech

Logo: Unknown author Unknown author, Public domain, via Wikimedia Commons5

US-based consulting and engineering services firm

Tetra Tech, Inc. is an American consulting and engineering services firm based in Pasadena, California. The company provides consulting, engineering, program management, and construction management services in the areas of water, environment, infrastructure, resource management, energy, and international development.3 Its shares trade on Nasdaq under the symbol TTEK.1 Wikipedia text CC BY-SA 4.0

Price unavailable

Last updated Oct 21, 2026.

Overview

$5.4BRevenue, fiscal 20256
$247.9MNet income, fiscal 20256
1966Founded1

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  • TickerTTEK on Nasdaq1
  • Industryprofessional service1
  • HeadquartersPasadena1
  • Websitewww.tetratech.com
  • Legal formDelaware corporation1
  • Incorporated inDE7
  • Business address3475 East Foothill Boulevard, Pasadena, Ca 911077
  • Filer categoryLarge accelerated filer7
  • LEI549300UJ1LP7JGJC5P324
  • StatusActive4
  • LEI statusIssued and current4
  • Registered addressC/O THE CORPORATION TRUST COMPANY, 19801 Wilmington, United States4
  • Registered withDivision of Corporations, Department of State, 21510894

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Tetra Tech, Inc. is an American consulting and engineering services firm based in Pasadena, California. The company provides consulting, engineering, program management, and construction management services in the areas of water, environment, infrastructure, resource management, energy, and international development.3

Financials

From the company’s reports to the SEC. Every number links to the filing it came from.

Key numbers, fiscal 2025

17.7%Gross margin6
7.5%Operating margin6
4.6%Net margin6
4.7%Revenue growth, 20256
13.9%Return on equity6
0.43×Debt to equity6
$439.1MFree cash flow6

What sells

Revenue by product, business segment and region, as the company reports it to the SEC.

Business segments

Commercial/International Services Group brought in 52% of the revenue Tetra Tech broke down this way in fiscal 2025.

  1. Commercial/International Services Group$2.8B652%up 2% from 2024
  2. Government Services Group$2.7B648%up 8% from 2024
Business segments by year
Business segments202320242025
Commercial/International Services Group$2.4B$2.8B$2.8B
Government Services Group$2.2B$2.5B$2.7B

Regions

United States brought in 63% of the revenue Tetra Tech broke down this way in fiscal 2025.

  1. United States$3.4B663%up 8% from 2024
  2. United Kingdom$771.7M614%up 8% from 2024
  3. Canada [member]$512.3M69%up 3% from 2024
  4. AUMember$489.1M69%down 8% from 2024
  5. Other Countries$223.6M64%down 14% from 2024
Regions by year
Regions202320242025
United States$2.9B$3.2B$3.4B
United Kingdom$601.2M$711.6M$771.7M
Canada [member]$436.2M$498.6M$512.3M
AUMember$449.5M$529.1M$489.1M
Other Countries$172.0M$260.6M$223.6M

Where the money goes

Where each dollar of revenue went, fiscal 2025

  • Cost of revenue15¢$825.2M
  • Other costs78¢$4.2B
  • Income tax2¢$129.7M
  • Profit5¢$247.9M

Out of $5.4B in revenue.6

Where each dollar of operating cash went, fiscal 2025

  • Capital spending4¢$18.6M
  • Dividends paid14¢$65.0M
  • Share buybacks55¢$250.0M
  • Kept or used elsewhere27¢$124.0M

Out of $457.7M of cash from operations.6

Financial statements

Revenue10111213146$5.4B in 2025+84% since 2018
0$2.0B$4.0B$6.0B2018: $3.0B$3.0B20182019: $3.1B$3.1B2019+5%2020: $3.0B$3.0B2020−4%2021: $3.2B$3.2B2021+7%2022: $3.5B$3.5B2022+9%2023: $4.5B$4.5B2023+29%2024: $5.2B$5.2B2024+15%2025: $5.4B$5.4B2025+5%
Gross profit10111213146$961.3M in 2025+150% since 2018
0$250.0M$500.0M$750.0M$1.0B2018: $384.5M$384.5M20182019: $408.2M$408.2M2019+6%2020: $446.5M$446.5M2020+9%2021: $498.4M$498.4M2021+12%2022: $575.6M$575.6M2022+15%2023: $725.0M$725.0M2023+26%2024: $866.4M$866.4M2024+20%2025: $961.3M$961.3M2025+11%
Operating income10111213146$408.4M in 2025+115% since 2018
0$200.0M$400.0M$600.0M2018: $190.1M$190.1M20182019: $188.8M$188.8M2019−1%2020: $241.1M$241.1M2020+28%2021: $278.7M$278.7M2021+16%2022: $340.4M$340.4M2022+22%2023: $358.1M$358.1M2023+5%2024: $500.7M$500.7M2024+40%2025: $408.4M$408.4M2025−18%
Net income10111213146$247.9M in 2025+81% since 2018
0$100.0M$200.0M$300.0M$400.0M2018: $137.0M$137.0M20182019: $158.8M$158.8M2019+16%2020: $173.9M$173.9M2020+10%2021: $232.8M$232.8M2021+34%2022: $263.2M$263.2M2022+13%2023: $273.5M$273.5M2023+4%2024: $333.4M$333.4M2024+22%2025: $247.9M$247.9M2025−26%

Every line of the income statement as filed: the last 3 fiscal years (annual) or 8 quarters (quarterly), latest first.6

Period ending2025-09-302024-09-302023-09-30
Revenue$5.4B$5.2B$4.5B
Costs of revenue-$825.2M-$876.8M-$771.5M
Other costs of revenue-$3.7B-$3.5B-$3.0B
Gross profit$961.3M$866.4M$725.0M
Selling, general and administrative expenses-$357.7M-$356.0M-$305.1M
Legal contingency costs-$115.0M$0$0
Impairment of goodwill-$92.4M$0$0
Acquisition and integration expenses$0-$7.1M-$33.2M
Right-of-use operating lease asset impairment$0$0-$16.4M
Contingent consideration fair value adjustments$12.2M-$2.5M-$12.3M
Income from operations$408.4M$500.7M$358.1M
Interest income$9.8M$7.3M$5.9M
Interest expense-$40.6M-$44.6M-$52.4M
Other non-operating income$0$0$89.4M
Income before income tax expense$377.6M$463.5M$401.0M
Income tax expense-$129.7M-$130.0M-$127.5M
Net income$247.9M$333.4M$273.5M
Net income attributable to noncontrolling interests-$225.0K-$61.0K-$32.0K
Net income attributable to Tetra Tech$247.7M$333.4M$273.4M
Net income attributable to Tetra Tech$247.7M$333.4M$273.4M
Basic (in dollars per share)$0.94$1.25$1.03
Diluted (in dollars per share)$0.93$1.23$1.02
Basic (in shares)264.7M shares267.4M shares266.0M shares
Diluted (in shares)267.1M shares270.0M shares268.2M shares

Compare Tetra Tech with another company

Corporate structure

Tetra Tech sits at the top of its group. 27 entities, 5 countries on record. Switch between the flow chart and the network, and select any entity to see its details.

Major holders of Tetra Tech

  • Tetra Tech Pasadena, California, United States
    • Tetra Tech (Brazil) Subsidiary
    • Advanced Management Technology, Inc. Subsidiary · Virginia, United States
    • Amyx, Inc. Subsidiary · Delaware, United States
    • ARD, Inc. Subsidiary · Vermont, United States
    • Ardaman & Associates, Inc. Subsidiary · Florida, United States
    • BlueWater Federal Solutions, Inc. Subsidiary · Delaware, United States
    • Cosentini Associates, Inc. Subsidiary · New York, United States
    • Global Tech Inc. Subsidiary · Virginia, United States
    • Glumac Subsidiary · California, United States
    • LS Technologies, LLC Subsidiary · Virginia, United States
    • Management Systems International, Inc. Subsidiary · the District of Columbia, United States
    • R P S Group Limited Subsidiary · United Kingdom
    • Rooney Engineering, Inc. Subsidiary · Colorado, United States
    • Segue Technologies, Inc. Subsidiary · Virginia, United States
    • Tetra Tech Australia Group Holdings Pty Ltd. Subsidiary · Australia
    • Tetra Tech Australia Pty Ltd Subsidiary · Australia
    • Tetra Tech BAS, Inc. Subsidiary · California, United States
    • Tetra Tech Canada Holding Corporation Subsidiary · Pasadena, California, United States
    • Tetra Tech Canada, Inc. Subsidiary · Canada
    • Tetra Tech EC, Inc. Subsidiary · Delaware, United States
    • Tetra Tech EMC, Inc. Subsidiary · California, United States
    • Tetra Tech ES, Inc. Subsidiary · Delaware, United States
    • Tetra Tech Holding LLC Subsidiary · Delaware, United States
    • TETRA TECH INTERNATIONAL DEVELOPMENT LIMITED Subsidiary · Reading, United Kingdom
    • TETRA TECH UK HOLDINGS LIMITED Subsidiary · Reading, United Kingdom
    • and 1 more

Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); subsidiaries listed in Exhibit 21 of annual reports filed with the SEC; subsidiaries, stakes and holdings from Wikidata (CC0); major holders from Schedules 13D and 13G. Each entity in the chart links to its source.

What it owns

What Tetra Tech reports owning in its annual reports to the SEC: buildings, land and equipment, real estate and locations, investments, intangible assets and inventory, at the end of its latest fiscal year and a year before.

Property and equipment

ItemLatestA year beforeChange
Property and equipment, before depreciation$187.6M6 Sep 28, 2025$184.0M6 Sep 29, 2024+2.0%
Accumulated depreciation$121.4M6 Sep 28, 2025$110.9M6 Sep 29, 2024+9.5%
Property and equipment, net$66.1M6 Sep 28, 2025$73.1M6 Sep 29, 2024−9.5%
Operating-lease assets (leased space)$197.6M6 Sep 28, 2025$177.9M6 Sep 29, 2024+11.1%

Investments

ItemLatestA year beforeChange
Cash and cash equivalents$167.5M6 Sep 28, 2025$232.7M6 Sep 29, 2024−28.0%

Intangibles and goodwill

ItemLatestA year beforeChange
Goodwill$2.0B6 Sep 28, 2025$2.0B6 Sep 29, 2024+0.2%
Finite-lived intangibles, gross$248.5M6 Sep 28, 2025$314.8M6 Sep 29, 2024−21.1%
Accumulated amortization$127.4M6 Sep 28, 2025$154.3M6 Sep 29, 2024−17.4%
Finite-lived intangibles, net$121.2M6 Sep 28, 2025$160.6M6 Sep 29, 2024−24.6%

Properties, in its own words

At fiscal 2025 year-end, we leased approximately 570 operating facilities in domestic and foreign locations. Our significant lease agreements expire at various dates through 2035. We believe that our current facilities are adequate for the operation of our business, and that suitable additional space in various local markets is available to accommodate any needs that may arise.

The following table summarizes our ten most significant leased properties by location based on annual rental expenses (listed alphabetically, except for our corporate headquarters):

The rest of Item 2

Location · Description · Reportable Segment

Pasadena, CA · Corporate Headquarters · Corporate

Arlington, VA · Office Building · GSG

Boston, MA · Office Building · GSG / CIG

Irvine, CA · Office Building · GSG / CIG

London, United Kingdom · Office Building · GSG / CIG

Melbourne, Australia · Office Building · CIG

New York, NY · Office Building · GSG / CIG

Oakland, CA · Office Building · GSG

Portland, OR · Office Building · GSG / CIG

Sydney, Australia · Office Building · CIG

Item 2 of the 10-K filed Nov 20, 2025.18

The story

Tetra Tech, Inc. was founded in 1966 as the Water Management Group of Tetra Tech Inc., by Nicholas Boratynski, Henri Hodara, Bernard LeMéhauté, and Don Stern.

During its early years, the company designed waterway structures at harbors, ports, and marinas; supported water quality control projects; supported oil and gas exploration projects; and calculated the effects of offshore military activities for the Department of Defense.

In 1977, Tetra Tech offered common stock on the American Stock Exchange and used this capital to expand its services, from developing methods to predict the level and frequency of floods and causes of acid rain to environmental impact studies of gas pipeline construction and installing Hydro Products equipment for the United States Navy. By 1979, Tetra Tech was helping to analyze data used in exploring the Alaska North Slope for oil.

In 1982, Honeywell purchased Tetra Tech's U.S. operations and another group acquired Tetra Tech International. The company phased out gas exploration and related products and phased in data systems.

In 1988, Honeywell sold Tetra Tech's engineering division to a group of company employees. Dr. Li-San Hwang joined the company in 1967 and led the new independent Tetra Tech. Honeywell retained the data systems division and a Tetra Tech co-founder to head it. After its split from Honeywell, the company grew from 300 employees to more than 14,000 by December 2014.

In 1991, Tetra Tech issued 1.4 million shares of stock on the Nasdaq exchange. The cash infusion permitted more acquisitions of engineering firms specializing in water resources (urban drainage and flood control), civil engineering (bridges and waterway design), environmental restoration, and hazardous waste cleanup. Gross revenues totaled $96.5 million by 1994.

In 2005, Dr. Hwang retired, and Dan Batrack, who joined Tetra Tech in the early 1980s, became CEO.

In 2016, Tetra Tech commemorated its 50th anniversary. As part of the Company's anniversary it launched the Global Clean Water Fund grant program in partnership with Engineers Without Borders. Tetra Tech donated $50,000 to 6 projects around the world that provided clean, safe water for communities in need. Tetra Tech also celebrated 25 years as a publicly traded company on the Nasdaq exchange in December 2016.

From Wikipedia’s article on Tetra Tech, shared under CC BY-SA 4.0.8

Leadership

Who has led Tetra Tech, and when. Pick a name to see everywhere that person has worked.

Chief executive

  1. Dan L. Batrack2006–2026
  2. Roger R. Argus2026–now

Chair

  1. Albert E. Smith2006–2008
  2. Dan L. Batrack2008–now

President

  1. Sam W. Box2006–2008
  2. Dan L. Batrack2018–2024
  3. Leslie L. Shoemaker2019–2021
  4. Jill Hudkins2022–2024
  5. Roger R. Argus2023–now

Chief financial officer

  1. David W. King2006–2010
  2. Steven M. Burdick2015–now
197019801990200020102020
Board members and other officers (40)

Products and brands

Headquartered in Pasadena, California, Tetra Tech has 30,000 employees in 550 offices worldwide. Its clients include a diverse base of international, U.S. state and local government, U.S. federal government, U.S. commercial, and international clients. No single client, except for U.S. federal government clients, accounted for more than 10 percent of the company's revenue in fiscal 2017.

The company is organized in two business groups: Government Services Group (GSG) and Commercial/International Services Group (CIG).

From Wikipedia’s article on Tetra Tech, shared under CC BY-SA 4.0.8

Subsidiaries and ownership

Subsidiaries

Subsidiaries (Exhibit 21)

  • ARD, Inc. Vermont9
  • Advanced Management Technology, Inc. Virginia9
  • Amyx, Inc. Delaware9
  • Ardaman & Associates, Inc. Florida9
  • BlueWater Federal Solutions, Inc. Delaware9
  • Cosentini Associates, Inc. New York9
  • Global Tech Inc. Virginia9
  • Glumac California9
  • LS Technologies, LLC Virginia9
  • Management Systems International, Inc. District of Columbia9
  • R P S Group Limited United Kingdom9
  • Rooney Engineering, Inc. Colorado9
  • Segue Technologies, Inc. Virginia9
  • Tetra Tech Australia Group Holdings Pty Ltd. Australia9
  • Tetra Tech Australia Pty Ltd Australia9
  • Tetra Tech BAS, Inc. California9
  • Tetra Tech Canada Holding Corporation Canada9
  • Tetra Tech Canada, Inc. Canada9
  • Tetra Tech EC, Inc. Delaware9
  • Tetra Tech EMC, Inc. California9
  • Tetra Tech ES, Inc. Delaware9
  • Tetra Tech Holding LLC Delaware9
  • Tetra Tech UK Holdings Limited United Kingdom9
  • The Kaizen Company, LLC District of Columbia9

From Wikidata.1 The subsidiaries the company lists in Exhibit 21 of its annual report, as filed.

Acquisitions

The remainder of the decade to 2014 involved growth by acquiring firms in Canada, Australia, and South America in its core (water and infrastructure) and new markets (mining and energy). Tetra Tech also acquired firms that provided international development services to the United States Agency for International Development. These new acquisitions focused on implementing sustainable strategies for water, energy, and the environment in Africa, Asia, and South America and facilitating stability and growth in countries in the aftermath of social conflicts or failed governing institutions. In October 2015, Coffey International was purchased.

Tetra Tech acquired Glumac in October 2017.

In January 2018, Tetra Tech acquired Bridgenet. In the same month, Norman Disney & Young was purchased.

Tetra Tech acquired the UK-based professional consultancy firm White Young Green in 2019, with WYG rebranding as Tetra Tech two years later.

Read the full text

In February 2021 Tetra Tech acquired Coanda Research and Development Corporation, a Canadian engineering consulting company specializing in computational fluid dynamics, physical and predictive modeling, data analytics, process engineering, analytical chemistry, and instrument development.

In April 2021 Tetra Tech acquired IBRA-RMAC Automation Systems, Inc., a California based water systems instrumentation and digital transformation consulting services for water infrastructure.

In May 2021 Tetra Tech announced that The Kaizen Company had joined its international development practice.

In July 2021 Tetra Tech acquired UK-based Hoare Lea, a sustainable engineering design firm.

In October 2021 Tetra Tech acquired Enterprise Automation (EA), a California based automation and digital transformation consultancy with services including control systems integration, advanced data analytics, platform virtualization, and OT/IT cybersecurity.

In February 2024 Tetra Tech announced the acquisition of LS Technologies, a Fairfax Virginia based contracting firm.

In April 2022, Tetra announced the approval of a patent for its proprietary Volans, a 3D animation and visualization software. In July 2022, Tetra acquired The Integration Group of Americas (TIGA), a systems integration and engineering services company.

In September 2022 Tetra Tech made a successful takeover offer for UK-based RPS Group.

Tetra Tech completed its largest-ever acquisition in January 2023, with its $691 million purchase of the British environmental consulting firm RPS Group. That same month, the company acquired Amyx, Inc., a cybersecurity and technology firm based in Reston, Virginia.

In March 2024, the company acquired LS Technologies, a consulting firm in Fairfax, Virginia. Later that year, in May, Tetra Tech purchased Convergence Controls & Engineering.

From Wikipedia’s article on Tetra Tech, shared under CC BY-SA 4.0.8

Timeline

  1. Sep 10, 20268-K Other events69
  2. Jul 29, 20268-K Results of operations; Other events70
  3. Apr 29, 20268-K Results of operations; Other events71
  4. Mar 26, 20268-K Executive or director change; Other events72
  5. Feb 20, 2026New chief executive Roger R. Argus becomes CEO19
  6. Feb 20, 20268-K Executive or director change; Shareholder vote73
  7. Jan 28, 20268-K Results of operations; Other events74
  8. Jan 6, 20268-K Executive or director change; Other events75
  9. Dec 22, 20258-K Executive or director change; Other events76
  10. Nov 12, 20258-K Results of operations; Other events77
  11. Oct 7, 20258-K Executive or director change; Other events78
  12. Jul 30, 20258-K Results of operations; Other events79
  13. May 7, 20258-K Entered a material agreement; Results of operations; New debt or obligation80
  14. Mar 8, 2006New chief executive Dan L. Batrack becomes CEO20
  15. 1966Founded Founded1

Calendar

Coming up

  1. Nov 11, 2026Reports results for the quarter ending Sep/2026 A year earlier it reported $0.45 a share, on Nov 12, 2025.81

When it reported results

  1. Jul 29, 2026Reported quarterly or annual results70
  2. Apr 29, 2026Reported quarterly or annual results71
  3. Jan 28, 2026Reported quarterly or annual results74
  4. Nov 12, 2025Reported quarterly or annual results77
  5. Jul 30, 2025Reported quarterly or annual results79
  6. May 7, 2025Reported quarterly or annual results80
  7. Jan 30, 2025Reported quarterly or annual results82
  8. Nov 13, 2024Reported quarterly or annual results83

Upcoming dates from Nasdaq's calendar; past results from the company's 8-K filings (Item 2.02). The full markets calendar

Filings

380 filings to the SEC since October 2021: 6 annual reports, 15 quarterly reports, 51 major events, 240 insider forms, 21 large holders, 47 other. The latest 20:

  1. Sep 10, 20268-K EDGAR
  2. Aug 6, 20264 EDGAR
  3. Aug 5, 2026S-8 EDGAR
  4. Jul 31, 202610-Q EDGAR
  5. Jul 29, 20268-K EDGAR
  6. Jun 5, 20264 EDGAR
  7. May 15, 20264 EDGAR
  8. May 1, 202610-Q EDGAR
  9. Apr 30, 2026SCHEDULE 13G EDGAR
  10. Apr 29, 20268-K EDGAR
  11. Apr 28, 20264 EDGAR
  12. Apr 3, 20263 EDGAR
  13. Mar 27, 2026SCHEDULE 13G/A EDGAR
  14. Mar 26, 20268-K EDGAR
  15. Mar 18, 20264 EDGAR
  16. Feb 20, 20264 EDGAR
  17. Feb 20, 20264 EDGAR
  18. Feb 20, 20268-K EDGAR
  19. Feb 12, 20264 EDGAR
  20. Feb 6, 20264 EDGAR

The 380 filings since October 2021 can be filtered by form type and year here when JavaScript is on.

Every filing from the last five years, summarized. The full record is on SEC EDGAR.

Insider trades

55 open-market trades by officers, directors and large owners since October 2021: 1 buys and 54 sales. Grants, option exercises and gifts are left out.

DateWhoTradeSharesPriceValueFiling
May 15, 2026Feeler Jeffrey RDirectorBuy1,900$26.41$50.2KForm 4
Feb 4, 2026CARTER BRIAN NSVP, Corporate ControllerSale9,979$40.23$401.5KForm 4
Aug 14, 2025Birkenbeuel GaryDirectorSale2,390$36.00$86.0KForm 4
Feb 4, 2025Volpi Kirsten MDirectorSale10,116$34.33$347.3KForm 4
Sep 11, 2024BURDICK STEVEN MEVP, CFOSale36,830$46.57$1.7MForm 4
Sep 11, 2024Ritrievi Kimberly EDirectorSale6,500$46.48$302.1KForm 4
Sep 10, 2024SHOEMAKER LESLIE LEVP, Chief SustainabilitySale78,420$46.11$3.6MForm 4
Sep 10, 2024Volpi Kirsten MDirectorSale1,950$46.00$89.7KForm 4
Aug 7, 2024Hopson Preston IIIEVP, Chief Legal/Human CapitalSale5,000$233.07$1.2MForm 4
Aug 6, 2024BATRACK DAN LChairman and CEOSale17,924$227.72$4.1MForm 4
Jun 13, 2024SHOEMAKER LESLIE LEVP, Chief SustainabilitySale11,161$211.83$2.4MForm 4
Feb 22, 2024BURDICK STEVEN MEVP, CFOSale7,515$175.67$1.3MForm 4
Feb 14, 2024THOMPSON J KENNETHDirectorSale3,500$177.24$620.3KForm 4
Feb 9, 2024CARTER BRIAN NSVP, Corporate ControllerSale5,580$176.52$985.0KForm 4
Feb 5, 2024BURDICK STEVEN MEVP, CFOSale7,128$165.01$1.2MForm 4
Feb 5, 2024THOMPSON J KENNETHDirectorSale8,400$165.00$1.4MForm 4
Dec 4, 2023CARTER BRIAN NSVP, Corporate ControllerSale1,474$165.58$244.1KForm 4
Dec 1, 2023Volpi Kirsten MDirectorSale2,228$162.74$362.6KForm 4
Nov 28, 2023BATRACK DAN LChairman and CEOSale22,000$161.51$3.6MForm 4
Nov 27, 2023Hudkins JillPresidentSale906$164.52$149.1KForm 4

All 55 trades can be filtered by person here when JavaScript is on.

From Forms 4 filed with the SEC.

Major holders

Investors who own more than 5% of the shares must tell the SEC: a 13D if they may seek to influence the company, a 13G if they hold passively.

Executive pay

What the company paid its top executives, from the summary compensation table in its proxy statement. Total pay includes salary, bonus, stock and option awards and other pay, as the company valued them.

YearExecutiveAgeSalaryTotal pay
2025Mr. BatrackChairman, CEO and President$1.2M$11.6M89
2025Mr. BurdickEVP, CFO$695.7K$3.2M89
2025Dr. ShoemakerEVP, Chief Innovation and Sustainability Officer$682.7K$3.2M89
2025Mr. HopsonEVP, Chief Legal and Human Capital Officer$591.3K$2.4M89
2025Mr. ArgusEVP, Corporate Development and President, CIG$592.3K$2.4M89
2024Mr. BatrackChairman, CEO and President$1.2M$12.6M89
2024Mr. BurdickEVP, CFO$666.3K$3.3M89
2024Dr. ShoemakerEVP, Chief Innovation and Sustainability Officer$597.4K$2.6M89
2024Mr. HopsonEVP, Chief Legal and Human Capital Officer$543.1K$2.5M89
2024Mr. ArgusEVP, Corporate Development and President, CIG$543.1K$2.3M89
2023Mr. BatrackChairman, CEO and President$1.2M$11.9M89
2023Mr. BurdickEVP, CFO$618.8K$3.1M89
2023Dr. ShoemakerEVP, Chief Innovation and Sustainability Officer$585.0K$2.8M89
2023Mr. HopsonEVP, Chief Legal and Human Capital Officer$504.6K$2.4M89
2023Mr. ArgusEVP, Corporate Development and President, CIG$504.6K$2.2M89

Held by these funds

The largest holders among investment managers' 13F reports for the quarter ending Jun 30, 2026, the top 25 of 100. Change is in shares since the quarter before.

FundSharesValueShare of the fundChange
BlackRock, Inc.28,675,276$828.4M0.0%+1,884,870
Vanguard Portfolio Management LLC12,467,970$360.2M0.0%−175,124
Vanguard Capital Management LLC11,725,738$338.8M0.0%+16,587
Capital International Investors11,651,238$336.6M0.1%+265,971
State Street Corp9,761,640$282.0M0.0%+125,728
Fmr LLC8,768,611$253.3M0.0%+8,440,359
Geode Capital Management, LLC6,833,071$197.4M0.0%+1,615,623
FIL Ltd5,471,691$158.1M0.1%+639,019
Amundi5,098,519$147.3M0.0%+349,272
Fuller & Thaler Asset Management, Inc.4,921,268$142.2M0.4%+1,606,825
Pictet Asset Management Holding SA4,759,290$137.5M0.1%−4,885,502
Wellington Management Group Llp4,674,089$135.0M0.0%−129,960
Dimensional Fund Advisors LP4,446,215$128.5M0.0%+656,975
Neuberger Berman Group LLC4,408,987$127.4M0.1%−2,860,670
Arrowstreet Capital, Limited Partnership4,393,728$126.9M0.1%+3,850,262
Invesco Ltd.4,116,893$118.9M0.0%+1,181,993
Aqr Capital Management LLC4,111,603$117.1M0.0%+2,597,141
Impax Asset Management Group plc3,931,741$113.6M0.7%+101,667
LGT Group Foundation3,745,171$108.2M1.2%+583,463
Norges Bank3,230,988$93.3M0.0%New
Robeco Schweiz AG3,099,250$89.5M1.4%+812,000
M&g PLC2,776,344$80.5M0.4%+457,810
Ameriprise Financial Inc2,729,762$78.9M0.0%+708,837
Goldman Sachs Group Inc2,647,910$76.5M0.0%+721,242
First Trust Advisors LP2,561,572$74.0M0.0%+116,090

13F reports cover disclosed long positions in U.S. stocks only.

Members of Congress who traded it

4 trades disclosed by members of Congress. “Vs S&P since” is the stock’s change since the trade minus the S&P 500’s.

DateMemberTradeAmountVs S&P sinceFiling
Jun 17, 2021Susie LeeDemocratic, HouseSale$1,001 - $15,000+40.7%Report
Apr 9, 2021Sara JacobsDemocratic, HouseSale$15,001 - $50,000+65.6%Report
Feb 19, 2021Sara JacobsDemocratic, HouseBuy$15,001 - $50,000−76.4%Report
Dec 22, 2020Susie LeeDemocratic, HouseBuy$1,001 - $15,000−59.8%Report

Members report amounts as ranges, not exact figures. Returns are price-only (no dividends).

SEC filer profile

How Tetra Tech is registered with the Securities and Exchange Commission, from its EDGAR record and the cover page of its latest annual report.

  • Name on EDGARTETRA TECH INC2
  • CIK0000831641
  • Employer ID (EIN)95-414851418
  • Filer statusLarge accelerated filer not an emerging growth company; not a smaller reporting company; not a shell company18
  • Incorporated inDelaware18
  • Fiscal year endsSeptember 272
  • Industry code (SIC)8711 Services-Engineering Services2
  • SEC reviewing officeOffice of Trade & Services, Division of Corporation Finance2
  • Business address3475 East Foothill Boulevard, Pasadena, CA 911072
  • Phone62635146642
  • Shares outstanding256,044,428 as of Jul 20, 202616
  • Public float$7.6B as of Mar 30, 202518
  • AuditorPricewaterhouseCoopers LLP, Los Angeles, California PCAOB ID 238; it also attests to the company’s internal control over financial reporting18
  • On EDGAR sinceFeb 10, 19952
  • Filings2,121 in all: 4 (1,322), 8-K (196), SC 13G/A (97), 10-Q (92), 4/A (41), 5 (41), 3 (36), DEF 14A (32)2
    All 40 form types

    SC 13G (32), 10-K (30), 144 (28), UPLOAD (23), CORRESP (18), S-3 (18), 424B3 (17), DEFA14A (16), S-8 (13), 8-K/A (9), 10-K/A (8), S-3/A (7), 10-Q/A (6), PRE 14A (5), POS AM (4), 424B1 (3), ARS (3), S-3MEF (3), SCHEDULE 13G/A (3), 424B2 (2), NT 10-K (2), PRER14C (2), SCHEDULE 13D/A (2), SCHEDULE 13G (2), 10-C (1), 3/A (1), 424B4 (1), DEF 14C (1), DEFR14A (1), NT 10-Q (1), SC 13D (1), SC 13D/A (1)

  • Latest filingsAnnual report (10-K) Nov 20, 2025
    Quarterly report (10-Q) Jul 31, 2026
    Proxy statement (DEF 14A) Jan 9, 2026
    Latest 8-K (8-K) Sep 10, 2026

Securities registered for trading

ClassSymbolExchange
Common Stock, $0.01 par valueTTEKThe NASDAQ Stock Market LLC

From the cover page of the 10-K filed Nov 20, 2025 (Section 12(b) of the Exchange Act).18

Risk factors and legal proceedings

The risks Tetra Tech names in Item 1A of its 10-K filed Nov 20, 2025: 52 risks under these headings, as written.18

  • Risks Related to Our Business and Operations
  • If we fail to complete a project in a timely manner, miss a required performance standard or otherwise fail to adequately perform on a project, then we may incur a loss on that project, which may reduce or eliminate our overall profitability.
  • Demand for our services is cyclical and vulnerable to economic downturns. If economic growth slows, government fiscal conditions worsen or client spending declines, then our revenue, profits and financial condition may deteriorate.
  • Our industry is highly competitive, and we may be unable to compete effectively, which could result in reduced revenue, profitability and market share.
  • Our international operations expose us to legal, political and economic risks in different countries as well as currency exchange rate fluctuations that could harm our business and financial results.
  • Continuing worldwide political, social and economic uncertainties may adversely affect our revenue and profitability.
  • Our backlog is subject to cancellation, unexpected adjustments and changing economic conditions and is an uncertain indicator of future operating results.
  • The loss of key personnel or our inability to attract and retain qualified personnel could impair our ability to provide services to our clients and otherwise conduct our business effectively.
  • If our contractors and subcontractors fail to satisfy their obligations to us or other parties, or if we are unable to maintain these relationships, our revenue, profitability and growth prospects could be adversely affected.
  • Our failure to meet contractual schedule or performance requirements that we have guaranteed could adversely affect our operating results.
  • Our failure to implement and comply with our safety program could adversely affect our operating results or financial condition.
  • Our business activities may require our employees to travel to and work in countries where there are high security risks, which may result in employee death or injury, repatriation costs or other unforeseen costs.
The other 41 risks
  • Unavailability or cancellation of third-party insurance coverage would increase our overall risk exposure as well as disrupt the management of our business operations.
  • Our inability to obtain adequate bonding could have a material adverse effect on our future revenue and business prospects.
  • We may be precluded from providing certain services due to conflict of interest issues.
  • Our actual business and financial results could differ from the estimates and assumptions that we use to prepare our consolidated financial statements, which may significantly reduce or eliminate our profits.
  • Our profitability could suffer if we are not able to maintain adequate utilization of our workforce.
  • Our use of the percentage-of-completion method of revenue recognition could result in a reduction or reversal of previously recorded revenue and profits.
  • If we are unable to accurately estimate and control our contract costs, then we may incur losses on our contracts, which could decrease our operating margins and reduce our profits. Specifically, our fixed-price contracts could increase the unpredictability of our earnings.
  • Cyber security incidents affecting our systems and information technology could adversely impact our ability to operate and we could experience adverse consequences resulting from such compromises, including but not limited to regulatory investigations or actions; litigation; fines and penalties; disruptions of our business operations; reputational harm; loss of revenue or profits; and other adverse consequences.
  • Risks Related to Our Clients
  • We derive a substantial amount of our revenue from U.S. federal, state and local government agencies, and any disruption in government funding or in our relationship with those agencies could adversely affect our business.
  • Our failure to win new contracts and renew existing contracts with private and public sector clients could adversely affect our profitability.
  • Our inability to win or renew U.S. government contracts during competitive procurement processes could harm our operations and significantly reduce or eliminate our profits.
  • Each year, client funding for some of our U.S. government contracts may rely on government appropriations or public-supported financing. If adequate public funding is delayed or is not available, then our profits and revenue could decline.
  • If we cannot collect our receivables or if payment is delayed, our business may be adversely affected by our inability to generate cash flow, provide working capital, or continue our business operations.
  • Certain contracts may give clients the right to modify, delay, curtail, renegotiate or terminate existing contracts at their convenience at any time prior to their completion, which may result in a decline in our profits and revenue.
  • Our revenue and growth prospects may be harmed if we or our employees are unable to obtain government granted eligibility or other qualifications we and they need to perform services for our customers.
  • Risks Related to Our Indebtedness
  • Servicing our debt requires a significant amount of cash, and we may not have sufficient cash flow from our business to pay our debt.
  • We may not be able to obtain capital when desired on favorable terms, if at all, or without dilution to our stockholders, which may impact our ability to execute on our current or future business strategies.
  • Restrictive covenants in our credit agreement may restrict our ability to pursue certain business strategies.
  • We may not have the ability to raise the funds necessary to settle conversions of our convertible notes or to repurchase our convertible notes upon a fundamental change, and our future debt may contain limitations on our ability to pay cash upon conversion or repurchase of our convertible notes.
  • The conditional conversion feature of our convertible notes, if triggered, may adversely affect our financial condition and operating results.
  • Changes in the accounting method for convertible debt securities that may be settled in cash, such as our convertible notes, could have a material effect on our reported financial results.
  • Conversion of our convertible notes may dilute the ownership interest of our stockholders or may otherwise depress the price of our common stock.
  • The capped call transactions may affect the value of our common stock.
  • We are subject to counterparty risk with respect to the capped call transactions.
  • Risks Related to Growth and Acquisitions
  • If we are not able to successfully manage our growth strategy, our business and results of operations may be adversely affected.
  • We have made and expect to continue to make acquisitions. Acquisitions could disrupt our operations and adversely impact our business and operating results. Our failure to conduct due diligence effectively or our inability to successfully integrate acquisitions could impede us from realizing all of the benefits of the acquisitions, which could weaken our results of operations.
  • If our goodwill or other intangible assets become impaired, then our profits may be significantly reduced.
  • Risks Related to Our Legal and Regulatory Environment
  • As a U.S. government contractor, we must comply with various procurement laws and regulations and are subject to regular government audits; a violation of any of these laws and regulations or the failure to pass a government audit could result in sanctions, contract termination, forfeiture of profit, harm to our reputation or loss of our status as an eligible government contractor and could reduce our profits and revenue.
  • Legal proceedings, investigations and disputes could result in substantial monetary penalties and damages, especially if such penalties and damages exceed or are excluded from existing insurance coverage.
  • We could be adversely affected by violations of the FCPA and similar worldwide anti-bribery laws.
  • We could be adversely impacted if we fail to comply with domestic and international export control and sanctions laws.
  • New legal requirements could adversely affect our operating results.
  • We may be subject to substantial liabilities under environmental laws and regulations.
  • Uncertainties in the interpretation and application of existing, new and proposed tax laws and regulations could materially affect our tax obligations and effective tax rate.
  • Employee, agent or partner misconduct, or our failure to comply with anti-bribery and other laws or regulations, could harm our reputation, reduce our revenue and profits and subject us to criminal and civil enforcement actions.
  • If our reports and opinions are not in compliance with professional standards and other regulations, we could be subject to monetary damages and penalties.
  • We have only a limited ability to protect our intellectual property rights, and our failure to protect our intellectual property rights could adversely affect our competitive position.
  • Assertions by third parties of infringement, misappropriation or other violations by us of their intellectual property rights could result in significant costs and substantially harm our business, financial condition and operating results.
  • We are subject to stringent and evolving U.S. and foreign laws, regulations, rules, contractual obligations, policies and other obligations related to data privacy and security. Our actual or perceived failure to comply with such obligations could lead to regulatory investigations or actions; litigation (including class claims) and mass arbitration demands; fines and penalties; disruptions of our business operations; reputational harm; loss of revenue or profits; loss of customers or sales; and other adverse business consequences.
  • General Risk Factors
  • We may not be able to continue, or may elect to discontinue, paying dividends which may adversely affect our stock price.
  • Delaware law and our organizational documents may impede or discourage a merger, takeover or other business combination with us even if the business combination would have been in the short-term best interests of our stockholders.

Legal proceedings

For a description of our material pending legal and regulatory proceedings and settlements, see Note 18, "Commitments and Contingencies" of the "Notes to Consolidated Financial Statements" included in Item 8.

The opening of Item 3, Legal Proceedings.18

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