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Cooke & Bieler’s Tetra Tech TTEK Stock Holding History

Cooke & Bieler’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 		$51.6M Buy
+1,785,403
New +$52.4M 0.6% 61
2018
Q4 		– Sell
-390,800
Closed -$5.34M – 103
2018
Q3 		$5.34M Sell
390,800
-470,450
-55% -$6.23M 0.09% 91
2018
Q2 		$10.1M Sell
861,250
-1,207,700
-58% -$12.9M 0.18% 87
2018
Q1 		$20.3M Sell
2,068,950
-270,460
-12% -$2.67M 0.38% 75
2017
Q4 		$22.5M Sell
2,339,410
-531,300
-19% -$5.16M 0.41% 69
2017
Q3 		$26.7M Buy
2,870,710
+457,175
+19% +$4.02M 0.5% 68
2017
Q2 		$22.1M Sell
2,413,535
-482,370
-17% -$4.3M 0.42% 68
2017
Q1 		$23.7M Buy
2,895,905
+937,580
+48% +$7.77M 0.46% 67
2016
Q4 		$16.9M Sell
1,958,325
-931,165
-32% -$7.52M 0.34% 72
2016
Q3 		$20.5M Sell
2,889,490
-838,485
-22% -$5.68M 0.43% 65
2016
Q2 		$22.9M Sell
3,727,975
-700,660
-16% -$4.19M 0.51% 60
2016
Q1 		$26.4M Sell
4,428,635
-119,645
-3% -$636K 0.59% 58
2015
Q4 		$23.7M Buy
4,548,280
+262,775
+6% +$1.4M 0.52% 60
2015
Q3 		$20.8M Buy
4,285,505
+1,418,550
+49% +$7.26M 0.49% 58
2015
Q2 		$14.7M Buy
2,866,955
+145,495
+5% +$745K 0.33% 62
2015
Q1 		$13.1M Buy
2,721,460
+512,640
+23% +$2.53M 0.28% 66
2014
Q4 		$11.8M Sell
2,208,820
-1,327,125
-38% -$6.94M 0.26% 68
2014
Q3 		$17.7M Buy
3,535,945
+131,450
+4% +$685K 0.4% 61
2014
Q2 		$18.7M Sell
3,404,495
-45,600
-1% -$250K 0.43% 63
2014
Q1 		$20.4M Buy
+3,450,095
New +$20.1M 0.48% 62

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

Cooke & Bieler's TTEK Position: Q2 2026 in Review

Cooke & Bieler opened a new position in Tetra Tech (TTEK) in Q2 2026: 1,785,403 shares worth $51.6M. The stake represents 0.6% of the portfolio and ranks #61 among its holdings. This is a return to the name: Cooke & Bieler previously reported a position in TTEK as recently as Q3 2018.

Cooke & Bieler first reported a position in TTEK in Q1 2014 and has held it in 20 quarters since. 552 funds tracked by Wall St. Rank hold TTEK as of Q2 2026.

  • Cooke & Bieler held 1,785,403 shares of Tetra Tech worth $51.6M as of Q2 2026.
  • Tetra Tech was a new Cooke & Bieler position in Q2 2026.
  • Tetra Tech made up 0.6% of Cooke & Bieler's portfolio in Q2 2026, its #61 holding.
  • Cooke & Bieler first reported a position in Tetra Tech in Q1 2014 and has held it in 20 quarters since.
  • 552 funds tracked by Wall St. Rank held Tetra Tech as of Q2 2026.

Based on Cooke & Bieler's 13F filing for Q2 2026, filed 30 Jul 2026.