Tetra Tech Ownership | Who Owns Tetra Tech?


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Tetra Tech Ownership Summary


Tetra Tech is owned by 58.99% institutional investors, 0.52% insiders, and 40.49% retail investors. Blackrock funding, inc. /de is the largest institutional shareholder, holding 10.27% of TTEK shares. Pictet Water Segregated Accounts is the top mutual fund, with 8.99% of its assets in Tetra Tech shares.

TTEK Ownership Benchmark


TypeName% Inst% Insiders% Retail
StockTetra Tech58.99%0.52%40.49%
SectorIndustrials Stocks 49.61%15.69%34.70%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Blackrock funding, inc. /de26.79M10.27%$806.93M
Vanguard group25.80M9.89%$865.35M
Blackrock5.27M9.85%$1.08B
Capital investors11.39M4.37%$342.92M
Pictet asset management sa9.64M3.70%$290.49M
State street9.64M3.69%$290.23M
Neuberger berman group7.27M2.79%$218.96M
Sands capital management6.66M2.55%$200.56M
Amundi5.76M2.17%$193.25M
Geode capital management5.22M2.00%$157.19M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Fernbridge capital management lp3.40M6.56%$102.43M
Value management907.33K4.43%$27.33M
Alpenglobal capital107.31K3.96%$6.23M
Neumeier poma investment counsel1.30M3.24%$39.27M
Managed asset portfolios886.86K3.20%$26.71M
Osprey private wealth363.42K3.17%$10.95M
One8zero8451.47K3.03%$13.60M
Winslow asset management432.54K2.53%$13.03M
Crown advisors management125.00K2.50%$3.77M
Van berkom & associates2.29M2.27%$68.85M

Top Buyers

HolderShares% AssetsChange
Wellington management group llp4.80M0.03%3.75M
Norges bank3.43M0.01%3.43M
Fuller & thaler asset management3.31M0.34%3.31M
Capital investors11.39M0.08%2.37M
Citadel advisors1.74M0.01%1.69M

Top Sellers

HolderShares% AssetsChange
Artisan partners limited partnership---2.78M
Bain capital public equity management ii---2.41M
Driehaus capital management---1.60M
Pictet asset management sa9.64M0.31%-1.56M
Aqr capital management1.51M0.02%-1.36M

New Positions

HolderShares% AssetsChangeValue
Norges bank3.43M0.01%3.43M$115.16M
Fuller & thaler asset management3.31M0.34%3.31M$99.83M
Vanguard fiduciary trust1.63M0.01%1.63M$49.05M
L1 capital pty956.17K1.72%956.17K$28.80M
Point72 asset management542.27K0.02%542.27K$16.33M

Sold Out

HolderChange
Mv capital management-1.00
Optiver b.v.-2.00
American capital advisory-3.00
First command advisory services-4.00
Tfc financial management-5.00

Institutional Ownership Trends


DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Mar 31, 2026408-33.87%153,845,034-36.36%580.69%181-34.66%153-39.76%
Dec 31, 2025489-20.36%192,202,802-22.15%730.85%208-31.58%2061.48%
Sep 30, 2025586-2.66%229,832,335-8.07%860.98%287-8.01%198-3.41%
Jun 30, 20255871.73%251,766,6353.61%941.13%3082.67%1993.11%
Mar 31, 2025570-11.08%242,885,5722.15%911.16%295-4.22%192-15.42%

Top Mutual Funds Shareholders


HolderShares% HoldingChange
Pictet Water Segregated Accounts962.92K8.99%962.92K
iShares Core S&P Mid-Cap ETF8.80M3.39%-4.43K
Vanguard Total Stock Mkt Idx Inv8.32M3.21%21.32K
Vanguard US Total Market Shares ETF8.45M3.15%-33.76M
Fidelity Sust Water & Waste A Acc EUR307.14K2.87%11.47K
Pictet-Water I EUR7.21M2.76%562.27K
Vanguard Small Cap Index6.01M2.32%-12.16K
Sands Capital Global Growth Equity5.97M2.30%-263.64K
State St S&P Midcap® Indx SL Cl II246.10K2.30%-600.00
Vontobel Global Envir Change I EUR235.39K2.20%-

Recent Insider Transactions


DateNameRoleActivityValue
May 15, 2026Feeler Jeffrey R-Buy$50.18K
Feb 04, 2026CARTER BRIAN N SVP, Corporate ControllerSell$401.41K
Aug 14, 2025Birkenbeuel Gary-Sell$86.05K
Feb 04, 2025Volpi Kirsten M-Sell$57.50K
Feb 04, 2025Volpi Kirsten M-Sell$140.74K

Insider Transactions Trends


DateBuySell
2031 Q4-1
2024 Q3-6
2024 Q2-1
2024 Q1-5
2023 Q4-10

TTEK Ownership FAQ


Who owns the most shares of Tetra Tech?

Tetra Tech’s largest shareholders are Blackrock funding, inc. /de (26.79M shares, 10.27%), Vanguard group (25.8M shares, 9.89%), and Blackrock (5.27M shares, 9.85%). Together, they hold 30.01% of Tetra Tech’s total shares outstanding.

Does Blackrock own Tetra Tech?

Yes, BlackRock owns 9.85% of Tetra Tech, totaling 5.27M shares as of Jun 2024. This represents 0.02% of BlackRock's total assets, with a market value of 1.08B$. In the last quarter, BlackRock decreased its holdings by -56.58K shares, a -1.06% change.

Who is Tetra Tech’s biggest shareholder by percentage of total assets invested?

Fernbridge capital management lp is Tetra Tech’s biggest shareholder by percentage of total assets invested, with 6.56% of its assets in 3.4M Tetra Tech shares, valued at 102.43M$.

Who is the top mutual fund holder of Tetra Tech shares?

Pictet Water Segregated Accounts is the top mutual fund holder of Tetra Tech shares, with 8.99% of its total shares outstanding invested in 962.92K Tetra Tech shares.

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