California State Teachers Retirement System (CalSTRS)
TTEK icon

California State Teachers Retirement System (CalSTRS)’s Tetra Tech TTEK Stock Holding History

California State Teachers Retirement System (CalSTRS)’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 		$8.75M Buy
290,497
+52,423
+22% +$1.85M 0.01% 750
2025
Q4 		$7.99M Sell
238,074
-507
-0.2% -$17.1K 0.01% 718
2025
Q3 		$7.96M Buy
238,581
+12
+0% +$436 0.01% 718
2025
Q2 		$8.58M Sell
238,569
-17,329
-7% -$577K 0.01% 664
2025
Q1 		$7.49M Buy
255,898
+5,537
+2% +$186K 0.01% 695
2024
Q4 		$9.97M Sell
250,361
-2,733
-1% -$123K 0.01% 625
2024
Q3 		$11.9M Sell
253,094
-7,881
-3% -$351K 0.01% 600
2024
Q2 		$10.7M Sell
260,975
-5,460
-2% -$223K 0.01% 614
2024
Q1 		$9.84M Sell
266,435
-14,715
-5% -$510K 0.01% 651
2023
Q4 		$9.39M Sell
281,150
-13,190
-4% -$421K 0.01% 644
2023
Q3 		$8.95M Sell
294,340
-28,765
-9% -$935K 0.01% 655
2023
Q2 		$10.6M Sell
323,105
-8,030
-2% -$236K 0.01% 643
2023
Q1 		$9.73M Sell
331,135
-6,405
-2% -$185K 0.01% 654
2022
Q4 		$9.8M Buy
337,540
+515
+0.2% +$14.9K 0.02% 653
2022
Q3 		$8.66M Sell
337,025
-8,060
-2% -$226K 0.01% 670
2022
Q2 		$9.42M Buy
345,085
+285
+0.1% +$7.82K 0.01% 655
2022
Q1 		$11.4M Sell
344,800
-30,915
-8% -$951K 0.02% 663
2021
Q4 		$12.8M Buy
375,715
+8,390
+2% +$289K 0.01% 682
2021
Q3 		$11M Sell
367,325
-4,360
-1% -$120K 0.01% 774
2021
Q2 		$9.07M Sell
371,685
-35,290
-9% -$888K 0.01% 875
2021
Q1 		$11M Sell
406,975
-1,020
-0.3% -$27K 0.01% 762
2020
Q4 		$9.45M Sell
407,995
-285
-0.1% -$6.42K 0.01% 787
2020
Q3 		$7.8M Buy
408,280
+1,910
+0.5% +$33.9K 0.01% 782
2020
Q2 		$6.43M Sell
406,370
-8,435
-2% -$128K 0.01% 826
2020
Q1 		$5.86M Sell
414,805
-2,055
-0.5% -$35K 0.01% 755
2019
Q4 		$7.18M Sell
416,860
-8,425
-2% -$146K 0.01% 827
2019
Q3 		$7.38M Buy
425,285
+5,080
+1% +$83K 0.01% 785
2019
Q2 		$6.6M Sell
420,205
-4,235
-1% -$57.1K 0.01% 849
2019
Q1 		$5.06M Sell
424,440
-9,870
-2% -$111K 0.01% 963
2018
Q4 		$4.5M Buy
434,310
+10,215
+2% +$127K 0.01% 964
2018
Q3 		$5.79M Sell
424,095
-150
-0% -$1.99K 0.01% 934
2018
Q2 		$4.96M Sell
424,245
-1,610
-0.4% -$17.2K 0.01% 1004
2018
Q1 		$4.17M Sell
425,855
-14,925
-3% -$147K 0.01% 1070
2017
Q4 		$4.25M Sell
440,780
-17,190
-4% -$167K 0.01% 1113
2017
Q3 		$4.26M Sell
457,970
-48,640
-10% -$428K 0.01% 1082
2017
Q2 		$4.63M Sell
506,610
-62,515
-11% -$557K 0.01% 1070
2017
Q1 		$4.65M Sell
569,125
-27,000
-5% -$224K 0.01% 1114
2016
Q4 		$5.14M Sell
596,125
-16,000
-3% -$129K 0.01% 1071
2016
Q3 		$4.34M Buy
612,125
+5,000
+0.8% +$33.9K 0.01% 1148
2016
Q2 		$3.73M Sell
607,125
-33,145
-5% -$198K 0.01% 1199
2016
Q1 		$3.82M Buy
640,270
+82,140
+15% +$437K 0.01% 1192
2015
Q4 		$2.9M Buy
558,130
+8,855
+2% +$47.3K 0.01% 1305
2015
Q3 		$2.67M Sell
549,275
-1,000
-0.2% -$5.12K 0.01% 1346
2015
Q2 		$2.82M Sell
550,275
-14,470
-3% -$74.1K 0.01% 1400
2015
Q1 		$2.71M Sell
564,745
-40,500
-7% -$200K 0.01% 1394
2014
Q4 		$3.23M Buy
605,245
+5,565
+0.9% +$29.1K 0.01% 1285
2014
Q3 		$3M Buy
599,680
+6,905
+1% +$36K 0.01% 1289
2014
Q2 		$3.26M Buy
592,775
+2,000
+0.3% +$10.9K 0.01% 1266
2014
Q1 		$3.5M Buy
590,775
+3,000
+0.5% +$17.5K 0.01% 1159
2013
Q4 		$3.29M Buy
587,775
+4,000
+0.7% +$21.6K 0.01% 1178
2013
Q3 		$3.02M Buy
583,775
+18,065
+3% +$86.6K 0.01% 1196
2013
Q2 		$2.66M Buy
+565,710
New +$3M 0.01% 1207

Other funds holding TTEK

BlackRock
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
Capital International Investors Los Angeles, California $427B AUM 29.17% 1-Year Est. Return
Pictet Asset Management
Pictet Asset Management Carouge, Switzerland $105B AUM 38.07% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Neuberger Berman Group
Neuberger Berman Group New York $131B AUM 28.36% 1-Year Est. Return
Sands Capital Management
Sands Capital Management Arlington, Virginia $25.5B AUM 26.46% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Fidelity International
Fidelity International Hamilton, Bermuda $129B AUM 30.83% 1-Year Est. Return

California State Teachers Retirement System (CalSTRS)'s TTEK Position: Q1 2026 in Review

California State Teachers Retirement System (CalSTRS) increased its Tetra Tech (TTEK) stake by 22% in Q1 2026, buying an estimated $1.85M and bringing the position to 290,497 shares worth $8.75M. The position accounts for 0.01% of the portfolio, ranked #750.

California State Teachers Retirement System (CalSTRS) first reported a position in TTEK in Q2 2013 and has held it in 52 quarters since. The position peaked at $12.8M in Q4 2021. 589 funds tracked by Wall St. Rank hold TTEK as of Q1 2026.

  • California State Teachers Retirement System (CalSTRS) held 290,497 shares of Tetra Tech worth $8.75M as of Q1 2026.
  • California State Teachers Retirement System (CalSTRS) bought 52,423 Tetra Tech shares in Q1 2026, an estimated $1.85M.
  • Tetra Tech made up 0.01% of California State Teachers Retirement System (CalSTRS)'s portfolio in Q1 2026, its #750 holding.
  • California State Teachers Retirement System (CalSTRS) first reported a position in Tetra Tech in Q2 2013 and has held it in 52 quarters since.
  • California State Teachers Retirement System (CalSTRS)'s Tetra Tech position peaked at $12.8M in Q4 2021.
  • 589 funds tracked by Wall St. Rank held Tetra Tech as of Q1 2026.

Based on California State Teachers Retirement System (CalSTRS)'s 13F filing for Q1 2026, filed 18 May 2026.