13D/13G Filings - TETRA TECH INC (TTEK)

Real time Form 13D and 13G transaction reports:

  • Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
  • Due to inconsistent filing format, it is highly recommended that you read the orignal filing form.
  • Shares have beem adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
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Reported
DateTime
Transaction
Date
Type Company
Symbol
Filed By
Symbol
Shares Owned
% Owned
Shares Vs. Prev Report View
2025-04-15
2:06 pm
Purchase
2025-04-15 13D Tetra Tech, Inc.
TTEK
PICTET ASSET MANAGEMENT SA 14,458,349
5.300%
439,462increase
(+3.13%)
Filing
History
2025-04-07
11:51 am
Purchase
2025-03-31 13G Tetra Tech, Inc.
TTEK
The Vanguard Group 27,185,795
10.140%
1,416,530increase
(+5.50%)
Filing
History
2025-02-11
09:44 am
Purchase
2024-12-31 13G Tetra Tech, Inc.
TTEK
PICTET ASSET MANAGEMENT SA 14,018,887
5.200%
381,437increase
(+2.80%)
Filing
History
2025-02-06
4:12 pm
Sale
2024-12-31 13G Tetra Tech, Inc.
TTEK
BLACKROCK INC
BLK
26,026,773
9.700%
-1,675,607decrease
(-6.05%)
Filing
History
2024-11-21
06:04 am
Sale
2024-11-21 13G Tetra Tech, Inc.
TTEK
PICTET ASSET MANAGEMENT SA 13,637,450
5.100%
-311,060decrease
(-2.23%)
Filing
History
2024-02-14
3:11 pm
Sale
2024-02-14 13G Tetra Tech, Inc.
TTEK
ALLIANCE CAPITAL MANAGEMENT L P 12,898,840
5.000%
-1,568,105decrease
(-10.84%)
Filing
History
2024-02-13
5:15 pm
Sale
2023-12-29 13G Tetra Tech, Inc.
TTEK
The Vanguard Group 25,769,265
9.680%
-915,240decrease
(-3.43%)
Filing
History
2024-01-31
10:38 am
Purchase
2023-12-29 13G Tetra Tech, Inc.
TTEK
PICTET ASSET MANAGEMENT SA 13,948,510
5.200%
336,525increase
(+2.47%)
Filing
History
2024-01-24
09:47 am
Sale
2023-12-31 13G Tetra Tech, Inc.
TTEK
BLACKROCK INC
BLK
27,702,380
10.400%
-948,660decrease
(-3.31%)
Filing
History
2023-02-13
6:47 pm
Purchase
2023-02-14 13G Tetra Tech, Inc.
TTEK
ALLIANCE CAPITAL MANAGEMENT L P 14,466,945
5.600%
14,466,945increase
(New Position)
Filing
History
2023-02-09
11:35 am
Purchase
2022-12-30 13G Tetra Tech, Inc.
TTEK
The Vanguard Group 26,684,505
10.070%
50,050increase
(+0.19%)
Filing
History
2023-02-07
2:10 pm
Sale
2022-12-31 13G Tetra Tech, Inc.
TTEK
BLACKROCK INC
BLK
28,651,040
10.800%
-6,558,215decrease
(-18.63%)
Filing
History
2023-02-03
11:46 am
Sale
2022-12-31 13G Tetra Tech, Inc.
TTEK
PICTET ASSET MANAGEMENT SA 13,611,985
5.110%
-321,160decrease
(-2.31%)
Filing
History
2022-12-12
3:09 pm
Purchase
2022-11-30 13G Tetra Tech, Inc.
TTEK
The Vanguard Group 26,634,455
10.050%
425,950increase
(+1.63%)
Filing
History
2022-02-10
11:09 am
Sale
2022-02-10 13G Tetra Tech, Inc.
TTEK
PICTET ASSET MANAGEMENT SA 13,933,145
5.170%
-349,275decrease
(-2.45%)
Filing
History
2022-02-10
08:42 am
Purchase
2021-12-31 13G Tetra Tech, Inc.
TTEK
The Vanguard Group 26,208,505
9.730%
487,400increase
(+1.89%)
Filing
History
2022-01-27
11:13 am
Unchanged
2021-12-31 13G Tetra Tech, Inc.
TTEK
BLACKROCK INC
BLK
35,209,255
13.100%
0
(Unchanged)
Filing
History
2022-01-25
3:11 pm
Purchase
2021-12-31 13G Tetra Tech, Inc.
TTEK
BLACKROCK INC
BLK
35,209,255
13.100%
1,566,370increase
(+4.66%)
Filing
History
2021-02-12
3:41 pm
Purchase
2021-02-16 13G TETRA Technologies, Inc.
TTI
DIMENSIONAL FUND ADVISORS INC 1,805,138
1.400%
1,805,138increase
(New Position)
Filing
History
2021-02-10
11:57 am
Sale
2020-12-31 13G Tetra Tech, Inc.
TTEK
The Vanguard Group 25,721,105
9.570%
-1,711,970decrease
(-6.24%)
Filing
History
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