Brown Brothers Harriman & Co’s Tetra Tech TTEK Stock Holding History

Brown Brothers Harriman & Co’s Portfolio TTEK Stock Details TTEK Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$117K	Buy	3,877 +104	+3%	+$3.68K	﹤0.01%	903
2025 Q4	$127K	Sell	3,773 -853	-18%	-$28.8K	﹤0.01%	855
2025 Q3	$154K	Buy	4,626 +853	+23%	+$31K	﹤0.01%	756
2025 Q2	$136K	Buy	3,773 +2,693	+249%	+$89.6K	﹤0.01%	724
2025 Q1	$31.6K	Hold	1,080	–	–	﹤0.01%	901
2024 Q4	$43K	Hold	1,080	–	–	﹤0.01%	907
2024 Q3	$50.9K	Hold	1,080	–	–	﹤0.01%	811
2024 Q2	$44.2K	Hold	1,080	–	–	﹤0.01%	787
2024 Q1	$39.9K	Hold	1,080	–	–	﹤0.01%	794
2023 Q4	$36.1K	Hold	1,080	–	–	﹤0.01%	761
2023 Q3	$32.8K	Hold	1,080	–	–	﹤0.01%	762
2023 Q2	$35.4K	Hold	1,080	–	–	﹤0.01%	768
2023 Q1	$31.7K	Hold	1,080	–	–	﹤0.01%	811
2022 Q4	$31.4K	Buy	1,080 +180	+20%	+$5.2K	﹤0.01%	798
2022 Q3	$23K	Hold	900	–	–	﹤0.01%	945
2022 Q2	$25K	Buy	+900	New	+$24.7K	﹤0.01%	838
2018 Q1	–	Sell	-1,685	Closed	-$16K	–	1118
2017 Q4	$16K	Buy	+1,685	New	+$16.4K	﹤0.01%	685

Other funds holding TTEK

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Capital International Investors Los Angeles, California $427B AUM 29.17% 1-Year Est. Return

Pictet Asset Management Carouge, Switzerland $94.8B AUM 24.11% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Neuberger Berman Group New York $131B AUM 28.36% 1-Year Est. Return

Sands Capital Management Arlington, Virginia $25.5B AUM 26.46% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Fidelity International Hamilton, Bermuda $129B AUM 30.83% 1-Year Est. Return

Brown Brothers Harriman & Co's TTEK Position: Q1 2026 in Review

Brown Brothers Harriman & Co increased its Tetra Tech (TTEK) stake by 2.8% in Q1 2026, buying an estimated $3.68K and bringing the position to 3,877 shares worth $117K. The position accounts for ﹤0.01% of the portfolio, ranked #903.

Brown Brothers Harriman & Co first reported a position in TTEK in Q4 2017 and has held it in 17 quarters since. The position peaked at $154K in Q3 2025. 588 funds tracked by Wall St. Rank hold TTEK as of Q1 2026.

Brown Brothers Harriman & Co held 3,877 shares of Tetra Tech worth $117K as of Q1 2026.
Brown Brothers Harriman & Co bought 104 Tetra Tech shares in Q1 2026, an estimated $3.68K.
Tetra Tech made up ﹤0.01% of Brown Brothers Harriman & Co's portfolio in Q1 2026, its #903 holding.
Brown Brothers Harriman & Co first reported a position in Tetra Tech in Q4 2017 and has held it in 17 quarters since.
Brown Brothers Harriman & Co's Tetra Tech position peaked at $154K in Q3 2025.
588 funds tracked by Wall St. Rank held Tetra Tech as of Q1 2026.

Based on Brown Brothers Harriman & Co's 13F filing for Q1 2026, filed 14 May 2026.