利樂科技公司
US ˙ NasdaqGS ˙ US88162G1031

SecurityTTEK / Tetra Tech, Inc.
InstitutionPrudential Financial Inc
Latest Disclosed Ownership164,220 shares
Latest Disclosed Value $ 4,946,306
Prudential Financial Inc reports 892.57% increase in ownership of TTEK / Tetra Tech, Inc.

On May 13, 2026 - Prudential Financial Inc filed a 13F-HR form disclosing ownership of 164,220 shares of Tetra Tech, Inc. (US:TTEK) valued at $4,946,306 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 16,545 shares of Tetra Tech, Inc.. This represents a change in shares of 892.57% during the quarter. The current value of the position is $4,593,233 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-13 2026-03-31 13F ETRA TECH INC COM 88162G103 164,220 147,675 892.57 4,946 780.07 0.0034
2026-02-13 2025-12-31 13F TETRA TECH INC COM 88162G103 16,545 -10,525 -38.88 562 -37.76 0.0007
2025-11-13 2025-09-30 13F TETRA TECH INC COM 88162G103 27,070 -665 -2.40 904 -18.13 0.0011
2025-08-12 2025-06-30 13F TETRA TECH INC COM 88162G103 27,735 5,265 23.43 1,103 68.14 0.0014
2025-05-13 2025-03-31 13F TETRA TECH INC COM 88162G103 22,470 -3,910 -14.82 656 -37.52 0.0009
2025-02-11 2024-12-31 13F TETRA TECH INC COM 88162G103 26,380 -18,426 -41.12 1,051 -50.31 0.0014
2024-11-14 2024-09-30 13F TETRA TECH INC COM 88162G103 44,806 36,195 420.33 2,113 20.06 0.0030
2024-08-13 2024-06-30 13F TETRA TECH INC COM 88162G103 8,611 1,875 27.84 1,761 41.48 0.0026
2024-05-14 2024-03-31 13F TETRA TECH INC COM 88162G103 6,736 764 12.79 1,244 24.90 0.0018
2024-02-13 2023-12-31 13F TETRA TECH INC COM 88162G103 5,972 -6,114 -50.59 997 -45.78 0.0015
2023-11-13 2023-09-30 13F TETRA TECH INC COM 88162G103 12,086 -606 -4.77 1,837 4.32 0.0029
2023-08-11 2023-06-30 13F TETRA TECH INC COM 88162G103 12,692 -7,965 -38.56 1,762 -38.56 0.0026
2023-05-12 2023-03-31 13F TETRA TECH INC COM 88162G103 20,657 1,510 7.89 2,867 3.09 0.0045
2023-02-14 2022-12-31 13F TETRA TECH INC COM 88162G103 19,147 -2,346 -10.92 2,780 0.65 0.0047
2022-11-04 2022-09-30 13F TETRA TECH INC COM 88162G103 21,493 -11,164 -34.19 2,762 -38.04 0.0047
2022-08-15 2022-06-30 13F TETRA TECH INC COM 88162G103 32,657 -24,399 -42.76 4,458 -52.63 0.0071
2022-05-13 2022-03-31 13F TETRA TECH INC COM 88162G103 57,056 27,561 93.44 9,411 87.51 0.0125
2022-02-14 2021-12-31 13F TETRA TECH INC COM 88162G103 29,495 -7,057 -19.31 5,019 -7.94 0.0062
2021-11-15 2021-09-30 13F TETRA TECH INC COM 88162G103 36,552 -18,806 -33.97 5,452 -19.30 0.0076
2021-08-16 2021-06-30 13F TETRA TECH INC COM 88162G103 55,358 -20,856 -27.37 6,756 -34.69 0.0093
2021-05-12 2021-03-31 13F TETRA TECH INC COM 88162G103 76,214 -12,705 -14.29 10,344 0.49 0.0155
2021-08-16 2020-12-31 13F/A-1 TETRA TECH INC COM 0115 88162G103 88,919 86,712 3,928.95 10,294 4,778.67 0.0173
2021-02-16 2020-12-31 13F TETRA TECH INC COM 88162G103 88,919 86,712 10,294 0.0173
2021-08-05 2020-09-30 13F/A-1 TETRA TECH INC COM 88162G103 2,207 -63 -2.78 211 17.22 0.0305
2020-11-16 2020-09-30 13F TETRA TECH INC COM 88162G103 114,025 111,755 10,889 0.0205
2021-08-05 2020-06-30 13F/A-1 TETRA TECH INC COM 0079 88162G103 2,270 -283 -11.08 180 0.00 0.0333
2020-08-12 2020-06-30 13F TETRA TECH INC COM 88162G103 337,948 335,395 26,738 0.0515
2021-08-05 2020-03-31 13F/A-1 TETRA TECH INC COM 0070 88162G103 2,553 382 17.60 180 -3.74 0.0467
2020-05-12 2020-03-31 13F TETRA TECH INC COM 88162G103 325,787 323,616 23,007 0.0510
2021-08-05 2019-12-31 13F/A-1 TETRA TECH INC COM 0086 88162G103 2,171 451 26.22 187 25.50 0.0487
2020-02-11 2019-12-31 13F TETRA TECH INC COM 88162G103 418,443 416,723 36,053 0.0534
2021-08-05 2019-09-30 13F/A-1 TETRA TECH INC COM 0086 88162G103 1,720 157 10.04 149 21.14 0.0486
2019-11-13 2019-09-30 13F TETRA TECH INC COM 88162G103 334,882 333,319 29,054 0.0461
2021-08-05 2019-06-30 13F/A-1 TETRA TECH INC COM 88162G103 1,563 403 34.74 123 78.26 0.0427
2019-08-08 2019-06-30 13F TETRA TECH INC COM 88162G103 106,167 105,007 8,340 0.0130
2021-08-05 2019-03-31 13F/A-1 TETRA TECH INC COM 88162G103 1,160 1,097 1,741.27 69 2,200.00 0.0293
2019-05-15 2019-03-31 13F TETRA TECH INC COM 88162G103 106,365 106,302 6,339 0.0106
2021-08-05 2018-12-31 13F/A-1 TETRA TECH INC COM 88162G103 63 44 231.58 3 200.00 0.0024
2019-02-07 2018-12-31 13F TETRA TECH INC COM 88162G103 116,238 23,498 6,018 0.0106
2021-09-01 2018-09-30 13F/A-1 TETRA TECH INC COM 0068 88162G103 19 -94,321 -99.98 1 -99.98 0.0016
2018-11-07 2018-09-30 13F TETRA TECH INC COM 88162G103 92,740 -1,600 6,334 0.0093
2018-08-13 2018-06-30 13F TETRA TECH INC COM 88162G103 94,340 -590 -0.62 5,519 18.76 0.0082
2018-05-04 2018-03-31 13F TETRA TECH INC COM 88162G103 94,930 1,950 2.10 4,647 3.80 0.0071
2018-02-13 2017-12-31 13F TETRA TECH INC COM 88162G103 92,980 -4,590 -4.70 4,477 -1.43 0.0061
2017-11-02 2017-09-30 13F TETRA TECH INC COM 88162G103 97,570 380 0.39 4,542 2.16 0.0075
2017-08-07 2017-06-30 13F TETRA TECH INC COM 88162G103 97,190 -4,560 -4.48 4,446 6.98 0.0066
2017-05-10 2017-03-31 13F TETRA TECH INC COM 88162G103 101,750 630 0.62 4,156 -4.74 0.0065
2017-02-07 2016-12-31 13F TETRA TECH INC COM 88162G103 101,120 -4,330 -4.11 4,363 16.66 0.0070
2016-11-04 2016-09-30 13F TETRA TECH INC COM 88162G103 105,450 -41,810 -28.39 3,740 -17.40 0.0062
2016-08-09 2016-06-30 13F TETRA TECH INC COM 88162G103 147,260 4,120 2.88 4,528 6.09 0.0076
2016-05-09 2016-03-31 13F TETRA TECH INC COM 88162G103 143,140 5,900 4.30 4,268 19.52 0.0076
2016-02-12 2015-12-31 13F TETRA TECH INC COM 88162G103 137,240 -1,800 -1.29 3,571 5.65 0.0065
2015-11-10 2015-09-30 13F TETRA TECH INC COM 88162G103 139,040 1,900 1.39 3,380 -3.87 0.0067
2015-08-06 2015-06-30 13F TETRA TECH INC COM 88162G103 137,140 -1,800 -1.30 3,516 5.36 0.0062
2015-05-01 2015-03-31 13F TETRA TECH INC COM 88162G103 138,940 -500 -0.36 3,337 -10.37 0.0058
2015-02-06 2014-12-31 13F TETRA TECH INC COM 88162G103 139,440 -7,000 -4.78 3,723 1.78 0.0068
2014-11-12 2014-09-30 13F TETRA TECH INC COM 88162G103 146,440 -11,592 -7.34 3,658 -15.83 0.0069
2014-08-13 2014-06-30 13F TETRA TECH INC COM 88162G103 158,032 9,092 6.10 4,346 -1.38 0.0077
2014-05-14 2014-03-31 13F TETRA TECH INC COM 88162G103 148,940 2,500 1.71 4,407 7.57 0.0082
2014-02-11 2013-12-31 13F TETRA TECH INC COM 88162G103 146,440 -3,900 -2.59 4,097 5.27 0.0081
2013-11-07 2013-09-30 13F TETRA TECH INC COM 88162G103 150,340 -12,661 -7.77 3,892 1.57 0.0083
2013-08-07 2013-06-30 13F TETRA TECH INC COM 88162G103 163,001 163,001 3,832 0.0085
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.