Jane Street’s Tetra Tech TTEK Stock Holding History

Jane Street’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 Q2	$1.01M	Buy	34,800 +5,800	+20%	+$170K	﹤0.01%	6537
2026 Q1	$873K	Buy	+29,000	New	+$1.03M	﹤0.01%	6811
2025 Q4	–	Sell	-133,900	Closed	-$4.47M	–	12415
2025 Q3	$4.47M	Buy	+133,900	New	+$4.87M	﹤0.01%	3593
2022 Q3	–	Sell	-9,000	Closed	-$246K	–	10489
2022 Q2	$246K	Sell	9,000 -4,500	-33%	-$123K	﹤0.01%	7901
2022 Q1	$445K	Buy	+13,500	New	+$415K	﹤0.01%	7700
2021 Q4	–	Sell	-8,000	Closed	-$239K	–	10828
2021 Q3	$239K	Sell	8,000 -5,500	-41%	-$151K	﹤0.01%	8590
2021 Q2	$330K	Buy	13,500 +1,500	+13%	+$37.7K	﹤0.01%	7984
2021 Q1	$326K	Buy	+12,000	New	+$318K	﹤0.01%	7563

Other funds holding TTEK

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Fidelity International Hamilton, Bermuda $139B AUM 29.06% 1-Year Est. Return

Amundi Paris, France $416B AUM 44.19% 1-Year Est. Return

Fuller & Thaler Asset Management San Mateo, California $36.7B AUM 74.15% 1-Year Est. Return

Jane Street's TTEK Position: Q2 2026 in Review

Jane Street reduced its Tetra Tech (TTEK) stake by 96% in Q2 2026, selling an estimated $5.82M and leaving 8,401 shares worth $243K. The position accounts for ﹤0.01% of the portfolio, ranked #9673.

Jane Street first reported a position in TTEK in Q1 2016 and has held it in 29 quarters since. The position peaked at $20.2M in Q2 2025. 554 funds tracked by Wall St. Rank hold TTEK as of Q2 2026.

Jane Street held 8,401 shares of Tetra Tech worth $243K as of Q2 2026.
Jane Street sold 198,405 Tetra Tech shares in Q2 2026, an estimated $5.82M.
Tetra Tech made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #9673 holding.
Jane Street first reported a position in Tetra Tech in Q1 2016 and has held it in 29 quarters since.
Jane Street's Tetra Tech position peaked at $20.2M in Q2 2025.
554 funds tracked by Wall St. Rank held Tetra Tech as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.