Question 1

Does Vanguard Group own TTEK stock?

Accepted Answer

As of its last 13F, for Q4 2025, Vanguard Group held 25,800,544 shares of TTEK (Tetra Tech), worth $865.4M.

Question 2

How many shares of TTEK does Vanguard Group own?

Accepted Answer

As of its last 13F, for Q4 2025, Vanguard Group held 25,800,544 shares of TTEK (Tetra Tech).

Question 3

What is Vanguard Group's TTEK position worth?

Accepted Answer

As of its last 13F, for Q4 2025, Vanguard Group's TTEK position was worth $865.4M.

Question 4

Is Vanguard Group buying or selling TTEK?

Accepted Answer

In Q4 2025, Vanguard Group reduced its TTEK position by 501,178 shares (-1.9%).

Question 5

When did Vanguard Group first buy TTEK?

Accepted Answer

Vanguard Group already held TTEK in its Q3 2024 13F, the earliest on record, and listed it in 6 quarterly 13F filings.

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2025-Q4 Latest	Decreased	25.8M	-1.9%	$865.4M	0.0%	$33.33	0
2025-Q3	Decreased	26.3M	-1.1%	$878M	0.0%	$33.11	0
2025-Q2	Decreased	26.6M	-2.2%	$955.9M	0.0%	$35.60	0
2025-Q1	Increased	27.2M	+4.9%	$795.2M	0.0%	$28.91	33
2024-Q4	Increased	25.9M	+0.5%	$1B	0.0%	$39.30	32
2024-Q3	First report	25.8M	-	$1.2B	0.0%	$46.46	0

TTEK6 quarters

TTEK
6 quarters