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Livermore
Livermore
ZHEN

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.

13F holders, Q3 2025

Institutional positions in Tetra Tech Inc as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
597
+14 vs. Q2 2025
Shares held
246.3M
−56.3K (0.0%) vs. Q2 2025
Total value
$8.22B
−$607.6M (−6.9%) vs. Q2 2025
New holders
74
231 more added
Sold out
60
202 more reduced

7 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting TTEK on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2025: 597 institutions
Q1 2021: 365 institutionsQ2 2021: 366 institutionsQ3 2021: 359 institutionsQ4 2021: 401 institutionsQ1 2022: 404 institutionsQ2 2022: 415 institutionsQ3 2022: 412 institutionsQ4 2022: 470 institutionsQ1 2023: 445 institutionsQ2 2023: 455 institutionsQ3 2023: 471 institutionsQ4 2023: 510 institutionsQ1 2024: 512 institutionsQ2 2024: 600 institutionsQ3 2024: 646 institutionsQ4 2024: 638 institutionsQ1 2025: 568 institutionsQ2 2025: 590 institutionsQ3 2025: 597 institutionsQ4 2025: 611 institutionsQ1 2026: 593 institutionsQ2 2026: 555 institutions
Value heldQ3 2025: $8.22B
Q1 2021: $6.39BQ2 2021: $5.68BQ3 2021: $7.08BQ4 2021: $7.93BQ1 2022: $7.86BQ2 2022: $6.31BQ3 2022: $5.91BQ4 2022: $6.68BQ1 2023: $6.81BQ2 2023: $7.67BQ3 2023: $7.09BQ4 2023: $7.87BQ1 2024: $8.66BQ2 2024: $9.88BQ3 2024: $11.2BQ4 2024: $9.45BQ1 2025: $7.18BQ2 2025: $8.94BQ3 2025: $8.22BQ4 2025: $8.10BQ1 2026: $7.35BQ2 2026: $7.32B
Institutions holding TTEK and their total value by quarter
QuarterHoldersValue
Q2 2026555$7.32B
Q1 2026593$7.35B
Q4 2025611$8.10B
Q3 2025597$8.22B
Q2 2025590$8.94B
Q1 2025568$7.18B
Q4 2024638$9.45B
Q3 2024646$11.2B
Q2 2024600$9.88B
Q1 2024512$8.66B
Q4 2023510$7.87B
Q3 2023471$7.09B
Q2 2023455$7.67B
Q1 2023445$6.81B
Q4 2022470$6.68B
Q3 2022412$5.91B
Q2 2022415$6.31B
Q1 2022404$7.86B
Q4 2021401$7.93B
Q3 2021359$7.08B
Q2 2021366$5.68B
Q1 2021365$6.39B

Institutions, Q3 2025

Shares, value and share of portfolio for each institution holding Tetra Tech Inc; share changes are against Q2 2025.

Institutions holding TTEK in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Cloud Capital Management, LLC25$00.00%+25New
Strengthening Families & Communities, LLC0$10.00%0Unchanged
Raleigh Capital Management Inc.1$450.00%−27−96.4%Reduced
AdvisorNet Financial, Inc2$670.00%−1,065−99.8%Reduced
American Capital Advisory, LLC4$1340.00%+4New
IMA Wealth, Inc.5$1670.00%00.0%Unchanged
North Capital, Inc.5$1670.00%+5New
Tortoise Investment Management, LLC8$2670.00%+1+14.3%Added
Bay Harbor Wealth Management, LLC12$4000.00%+2+20.0%Added
HFM Investment Advisors, LLC12$4010.00%−1−7.7%Reduced
Bare Financial Services, Inc12$4010.00%00.0%Unchanged
DecisionPoint Financial, LLC13$4320.00%00.0%Unchanged
Hughes Financial Services, LLC16$5130.00%+16New
Bogart Wealth, LLC16$5340.00%00.0%Unchanged
Principia Wealth Advisory, LLC19$6340.00%+19New
IMG Wealth Management, Inc.26$8680.00%+26New
Winthrop Capital Management, LLC44$1.00K0.00%00.0%Unchanged
South State Corp.31$1.03K0.00%−6−16.2%Reduced
Cromwell Holdings LLC31$1.03K0.00%00.0%Unchanged
Rialto Wealth Management, LLC32$1.07K0.00%+6+23.1%Added
Transamerica Financial Advisors, Inc.34$1.10K0.00%+34New
DiNuzzo Private Wealth, Inc.33$1.20K0.00%−2−5.7%Reduced
Rossby Financial, LCC39$1.29K0.00%+39New
Financial Management Professionals, Inc.40$1.33K0.00%00.0%Unchanged
Quest 10 Wealth Builders, Inc.40$1.33K0.00%+40New
Creative Financial Designs Inc41$1.37K0.00%−185−81.9%Reduced
Dogwood Wealth Management LLC42$1.40K0.00%−73−63.5%Reduced
CoreCap Advisors, LLC45$1.50K0.00%00.0%Unchanged
Pineridge Advisors LLC47$1.57K0.00%00.0%Unchanged
Beaird Harris Wealth Management, LLC47$1.57K0.00%+47New
Steigerwald, Gordon & Koch Inc.49$1.64K0.00%+49New
Essential Partners LLC52$1.74K0.00%+12+30.0%Added
Rakuten Securities, Inc.52$1.74K0.00%+52New
Bell Investment Advisors, Inc54$1.80K0.00%−12−18.2%Reduced
Anchor Investment Management, LLC55$1.84K0.00%00.0%Unchanged
Hazlett, Burt & Watson, Inc.66$2.00K0.00%+1+1.5%Added
Avion Wealth72$2.00K0.00%+15+26.3%Added
Private Wealth Management Group, LLC65$2.17K0.00%00.0%Unchanged
JPL Wealth Management, LLC67$2.24K0.00%+67New
JFS Wealth Advisors, LLC73$2.44K0.00%−1−1.4%Reduced
Armstrong Advisory Group, Inc73$2.44K0.00%00.0%Unchanged
St Germain D J Co Inc75$2.50K0.00%00.0%Unchanged
Whittier Trust Co of Nevada Inc83$2.80K0.00%−4−4.6%Reduced
Quent Capital, LLC86$2.87K0.00%+86New
Capital Analysts, LLC100$3.00K0.00%00.0%Unchanged
Proffitt & Goodson Inc105$3.50K0.00%00.0%Unchanged
Mather Group, LLC.108$3.60K0.00%+108New
Crewe Advisors LLC108$3.61K0.00%+108New
Dunhill Financial, LLC116$3.86K0.00%+8+7.4%Added
High Note Wealth, LLC127$4.24K0.00%+5+4.1%Added
Rothschild Investment LLC142$4.74K0.00%+117+468.0%Added
WPG Advisers, LLC146$4.87K0.00%00.0%Unchanged
ZRC Wealth Management, LLC166$5.54K0.00%+166New
Itau Unibanco Holding S.A.168$5.61K0.00%00.0%Unchanged
Sunbelt Securities, Inc.188$6.28K0.00%+13+7.4%Added
SBI Securities Co., Ltd.201$6.71K0.00%+1+0.5%Added
N.E.W. Advisory Services LLC215$7.18K0.00%00.0%Unchanged
Fortitude Family Office, LLC224$7.48K0.00%+8+3.7%Added
Farmers & Merchants Investments Inc225$7.51K0.00%+11+5.1%Added
Westside Investment Management, Inc.239$7.93K0.00%+239New
Mascoma Wealth Management LLC250$8.35K0.00%00.0%Unchanged
Atlantic Union Bankshares Corp256$8.56K0.00%00.0%Unchanged
Webster Bank, N. A.290$9.68K0.00%00.0%Unchanged
CX Institutional310$10.0K0.00%00.0%Unchanged
Hemington Wealth Management323$10.0K0.00%−8−2.4%Reduced
Prestige Wealth Management Group LLC310$10.3K0.00%00.0%Unchanged
Glen Eagle Advisors, LLC332$11.1K0.00%00.0%Unchanged
TCTC Holdings, LLC340$11.3K0.00%00.0%Unchanged
Retirement Wealth Solutions LLC348$11.6K0.01%−91−20.7%Reduced
Banque Cantonale Vaudoise348$12.0K0.00%00.0%Unchanged
Parkside Financial Bank & Trust387$12.9K0.00%−600−60.8%Reduced
Clal Insurance Enterprises Holdings Ltd515$17.0K0.00%−183−26.2%Reduced
Centerpoint Advisors, LLC504$17.0K0.01%−2−0.4%Reduced
MAI Capital Management525$17.5K0.00%−324−38.2%Reduced
Rexford Capital Inc525$17.5K0.01%00.0%Unchanged
CIBC Private Wealth Group, LLC539$18.0K0.00%+301+126.5%Added
Smartleaf Asset Management LLC575$19.3K0.00%+376+188.9%Added
Binnacle Investments Inc582$19.4K0.01%+77+15.2%Added
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.585$19.5K0.00%00.0%Unchanged
First Horizon Corp585$19.5K0.00%+585New
Bank of Jackson Hole Trust591$19.7K0.01%+591New
Plante Moran Financial Advisors, LLC595$19.9K0.00%00.0%Unchanged
Rise Advisors, LLC605$20.2K0.01%+1+0.2%Added
Cornerstone Planning Group LLC126$20.8K0.00%+64+103.2%Added
Trust Co625$20.9K0.00%00.0%Unchanged
Harvest Fund Management Co., Ltd594$21.0K0.00%−1,836−75.6%Reduced
Wexford Capital LP641$21.4K0.01%+641New
Canton Hathaway, LLC645$22.0K0.00%00.0%Unchanged
Mirae Asset Global Investments Co., Ltd.661$22.1K0.00%+1+0.2%Added
GWM Advisors LLC675$22.5K0.00%00.0%Unchanged
Sound Income Strategies, LLC728$25.0K0.00%+2+0.3%Added
BFSG, LLC750$25.0K0.00%+750New
Financial Consulate, Inc787$26.3K0.00%+787New
Wealthspire Advisors, LLC811$27.1K0.00%+811New
Root Financial Partners, LLC898$30.0K0.00%+898New
Private Trust Co NA902$30.1K0.00%+51+6.0%Added
Loring Wolcott & Coolidge Fiduciary Advisors LLP900$30.4K0.00%00.0%Unchanged
Kathleen S. Wright Associates Inc.935$31.2K0.01%00.0%Unchanged
Asset Planning,Inc1,000$33.4K0.02%00.0%Unchanged
True Wealth Design, LLC1,012$33.8K0.01%+704+228.6%Added