Arrowstreet Capital
TTEK icon

Arrowstreet Capital’s Tetra Tech TTEK Stock Holding History

Arrowstreet Capital’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 		$127M Buy
4,393,728
+3,850,262
+708% +$113M 0.06% 297
2026
Q1 		$16.4M Sell
543,466
-478,786
-47% -$16.9M 0.01% 803
2025
Q4 		$34.3M Buy
1,022,252
+272,496
+36% +$9.22M 0.02% 586
2025
Q3 		$25M Sell
749,756
-156,477
-17% -$5.69M 0.02% 664
2025
Q2 		$32.6M Buy
906,233
+370,559
+69% +$12.3M 0.02% 536
2025
Q1 		$15.7M Buy
535,674
+193,037
+56% +$6.48M 0.01% 665
2024
Q4 		$13.7M Buy
342,637
+34,375
+11% +$1.54M 0.01% 723
2024
Q3 		$14.5M Buy
308,262
+287,927
+1,416% +$12.8M 0.01% 641
2024
Q2 		$832K Buy
+20,335
New +$829K ﹤0.01% 1252
2023
Q2 		– Sell
-122,365
Closed -$3.6M – 1479
2023
Q1 		$3.6M Sell
122,365
-497,200
-80% -$14.4M ﹤0.01% 775
2022
Q4 		$18M Sell
619,565
-475,930
-43% -$13.8M 0.03% 419
2022
Q3 		$28.2M Buy
1,095,495
+327,290
+43% +$9.16M 0.04% 316
2022
Q2 		$21M Buy
768,205
+292,745
+62% +$8.03M 0.03% 363
2022
Q1 		$15.7M Sell
475,460
-39,560
-8% -$1.22M 0.02% 444
2021
Q4 		$17.5M Buy
+515,020
New +$17.7M 0.02% 517
2021
Q3 		– Sell
-301,000
Closed -$7.35M – 1874
2021
Q2 		$7.35M Buy
301,000
+215,500
+252% +$5.42M 0.01% 940
2021
Q1 		$2.32M Sell
85,500
-81,500
-49% -$2.16M ﹤0.01% 1514
2020
Q4 		$3.87M Buy
167,000
+145,500
+677% +$3.28M 0.01% 1325
2020
Q3 		$411K Buy
+21,500
New +$382K ﹤0.01% 2071
2019
Q1 		– Sell
-25,080
Closed -$260K – 1914
2018
Q4 		$260K Buy
+25,080
New +$311K ﹤0.01% 1210
2016
Q4 		– Sell
-103,000
Closed -$731K – 2481
2016
Q3 		$731K Buy
+103,000
New +$698K ﹤0.01% 1148

Other funds holding TTEK

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Capital International Investors
Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Fidelity International
Fidelity International Hamilton, Bermuda $139B AUM 29.06% 1-Year Est. Return
Amundi
Amundi Paris, France $416B AUM 44.19% 1-Year Est. Return
Fuller & Thaler Asset Management
Fuller & Thaler Asset Management San Mateo, California $36.7B AUM 74.15% 1-Year Est. Return

Arrowstreet Capital's TTEK Position: Q2 2026 in Review

Arrowstreet Capital increased its Tetra Tech (TTEK) stake by 708% in Q2 2026, buying an estimated $113M and bringing the position to 4,393,728 shares worth $127M. The position accounts for 0.06% of the portfolio, ranked #297.

Arrowstreet Capital first reported a position in TTEK in Q3 2016 and has held it in 21 quarters since. 552 funds tracked by Wall St. Rank hold TTEK as of Q2 2026.

  • Arrowstreet Capital held 4,393,728 shares of Tetra Tech worth $127M as of Q2 2026.
  • Arrowstreet Capital bought 3,850,262 Tetra Tech shares in Q2 2026, an estimated $113M.
  • Tetra Tech made up 0.06% of Arrowstreet Capital's portfolio in Q2 2026, its #297 holding.
  • Arrowstreet Capital first reported a position in Tetra Tech in Q3 2016 and has held it in 21 quarters since.
  • 552 funds tracked by Wall St. Rank held Tetra Tech as of Q2 2026.

Based on Arrowstreet Capital's 13F filing for Q2 2026, filed 13 Aug 2026.