Tetra Tech Ownership | Who Owns Tetra Tech?

Overview Forecast RevenueFinancials Chart Transcripts

Tetra Tech Ownership Summary

Tetra Tech is owned by 73.69% institutional investors, 0.50% insiders, and 25.81% retail investors. Vanguard group is the largest institutional shareholder, holding 9.89% 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

Type	Name	% Inst	% Insiders	% Retail
Stock	Tetra Tech	73.69%	0.50%	25.81%
Sector	Industrials Stocks	47.63%	12.54%	39.83%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Vanguard group	25.80M	9.89%	$865.35M
Blackrock funding, inc. /de	25.73M	9.87%	$863.04M
Blackrock	5.27M	9.85%	$1.08B
Pictet asset management sa	11.20M	4.30%	$375.81M
State street	11.29M	4.25%	$376.95M
Capital investors	9.02M	3.46%	$302.42M
Neuberger berman group	9.03M	3.40%	$301.34M
Sands capital management	7.18M	2.70%	$239.64M
Alliancebernstein	6.58M	2.48%	$219.68M
Amundi	5.76M	2.17%	$193.25M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Value management	907.33K	5.09%	$30.43M
Managed asset portfolios	845.28K	3.42%	$28.35M
One8zero8	467.75K	3.37%	$15.61M
Osprey private wealth	344.02K	3.32%	$11.54M
Neumeier poma investment counsel	1.13M	3.12%	$37.79M
Crown advisors management	125.00K	2.76%	$4.19M
Winslow asset management	441.60K	2.73%	$14.81M
Premier fund managers	1.14M	2.22%	$38.61M
Van berkom & associates	2.29M	2.22%	$76.89M
Renaissance investment group	292.15K	1.97%	$9.80M

Top Buyers

Holder	Shares	% Assets	Change
Norges bank	3.43M	0.01%	3.43M
Impax asset management group	3.21M	0.67%	3.21M
Sands capital management	7.18M	0.66%	1.98M
Capital investors	9.02M	0.05%	1.94M
Quantinno capital management lp	1.53M	0.14%	740.13K

Top Sellers

Holder	Shares	% Assets	Change
Pictet asset management sa	11.20M	0.36%	-2.98M
Artisan partners limited partnership	-	-	-2.78M
Bain capital public equity management ii	-	-	-2.41M
Driehaus capital management	-	-	-1.60M
Zurcher kantonalbank (zurich cantonalbank)	523.20K	0.04%	-1.22M

New Positions

Holder	Shares	% Assets	Change	Value
Norges bank	3.43M	0.01%	3.43M	$115.16M
Impax asset management group	3.21M	0.67%	3.21M	$107.60M
Mackenzie financial	352.37K	0.01%	352.37K	$11.76M
Trexquant investment lp	342.16K	0.12%	342.16K	$11.42M
First national bank of omaha	91.05K	0.19%	91.05K	$3.04M

Sold Out

Holder	Change
First command advisory services	-4.00
Tfc financial management	-5.00
Hhm wealth advisors	-5.00
Newsquare capital	-7.00
Tortoise investment management	-8.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Dec 31, 2025	489	-20.36%	192,202,802	-22.15%	73	0.85%	208	-31.58%	206	1.48%
Sep 30, 2025	586	-2.66%	229,832,335	-8.07%	86	0.98%	287	-8.01%	198	-3.41%
Jun 30, 2025	587	1.73%	251,766,635	3.61%	94	1.13%	308	2.67%	199	3.11%
Mar 31, 2025	570	-11.08%	242,885,572	2.15%	91	1.16%	295	-4.22%	192	-15.42%
Dec 31, 2024	495	-23.61%	193,712,356	-17.85%	72	0.93%	224	-63.93%	183	1120.00%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Pictet Water Segregated Accounts	962.92K	8.99%	962.92K
iShares Core S&P Mid-Cap ETF	8.44M	3.24%	-33.96M
Vanguard US Total Market Shares ETF	8.45M	3.15%	-33.76M
Vanguard Total Stock Mkt Idx Inv	8.16M	3.13%	18.90K
Fidelity Sust Water & Waste A Acc EUR	307.14K	2.87%	11.47K
Sands Capital Global Growth Equity	6.23M	2.39%	-185.82K
State St S&P Midcap® Indx SL Cl II	246.10K	2.30%	-600.00
Vanguard Small Cap Index	5.91M	2.27%	-1.18K
Vontobel Global Envir Change I EUR	235.39K	2.20%	-
AB Small Cap Growth A	218.89K	2.04%	690.00

Recent Insider Transactions

Date	Name	Role	Activity	Value
Feb 04, 2026	CARTER BRIAN N	SVP, Corporate Controller	Sell	$401.41K
Aug 14, 2025	Birkenbeuel Gary	-	Sell	$86.05K
Feb 04, 2025	Volpi Kirsten M	-	Sell	$57.50K
Feb 04, 2025	Volpi Kirsten M	-	Sell	$140.74K
Feb 04, 2025	Volpi Kirsten M	-	Sell	$149.08K

Insider Transactions Trends

Date	Buy	Sell
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 Vanguard group (25.8M shares, 9.89%), Blackrock funding, inc. /de (25.73M shares, 9.87%), and Blackrock (5.27M shares, 9.85%). Together, they hold 29.61% 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?

Value management is Tetra Tech’s biggest shareholder by percentage of total assets invested, with 5.09% of its assets in 907.32K Tetra Tech shares, valued at 30.43M$.

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.

Try Tickergate Pro Free

Customize Everything. 100% Flexibility. Fast and Easy to Use (No code or Excel Needed)

Customize your own personal stocks lists, views and charts
Choose from hundreds of fields, up to 15 years of history
Conduct deep comparison analysis

Discover trending investment themes
Find your next best investment
Research stocks using tools