Group One Trading’s Tetra Tech TTEK Stock Holding History

Group One Trading’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	$2.55M	Sell	84,500 -117,400	-58%	-$4.15M	﹤0.01%	1864
2025 Q4	$6.77M	Buy	201,900 +89,400	+79%	+$3.02M	0.01%	1240
2025 Q3	$3.76M	Buy	112,500 +73,300	+187%	+$2.66M	0.01%	1748
2025 Q2	$1.41M	Sell	39,200 -27,400	-41%	-$912K	﹤0.01%	2447
2025 Q1	$1.95M	Buy	+66,600	New	+$2.23M	0.01%	1832
2022 Q1	–	Sell	-500	Closed	-$17K	–	8739
2021 Q4	$17K	Buy	+500	New	+$17.2K	﹤0.01%	7078
2021 Q3	–	Sell	-1,000	Closed	-$24K	–	8809
2021 Q2	$24K	Buy	1,000 +500	+100%	+$12.6K	﹤0.01%	7086
2021 Q1	$14K	Buy	+500	New	+$13.2K	﹤0.01%	6915

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

Group One Trading's TTEK Position: Q1 2026 in Review

Group One Trading increased its Tetra Tech (TTEK) stake by 394% in Q1 2026, buying an estimated $161K and bringing the position to 5,709 shares worth $172K. The position accounts for ﹤0.01% of the portfolio, ranked #4247.

Group One Trading first reported a position in TTEK in Q4 2021 and has held it in 4 quarters since. The position peaked at $617K in Q3 2025. 588 funds tracked by Wall St. Rank hold TTEK as of Q1 2026.

Group One Trading held 5,709 shares of Tetra Tech worth $172K as of Q1 2026.
Group One Trading bought 4,553 Tetra Tech shares in Q1 2026, an estimated $161K.
Tetra Tech made up ﹤0.01% of Group One Trading's portfolio in Q1 2026, its #4247 holding.
Group One Trading first reported a position in Tetra Tech in Q4 2021 and has held it in 4 quarters since.
Group One Trading's Tetra Tech position peaked at $617K in Q3 2025.
588 funds tracked by Wall St. Rank held Tetra Tech as of Q1 2026.

Based on Group One Trading's 13F filing for Q1 2026, filed 13 May 2026.