利樂科技公司
US ˙ NasdaqGS ˙ US88162G1031

SecurityTTEK / Tetra Tech, Inc.
InstitutionFIL Ltd
Latest Disclosed Ownership4,832,672 shares
Latest Disclosed Value $ 145,560,081
FIL Ltd reports 3.53% increase in ownership of TTEK / Tetra Tech, Inc.

On May 15, 2026 - FIL Ltd filed a 13F-HR form disclosing ownership of 4,832,672 shares of Tetra Tech, Inc. (US:TTEK) valued at $145,560,081 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 4,667,958 shares of Tetra Tech, Inc.. This represents a change in shares of 3.53% during the quarter. The current value of the position is $135,169,836 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)
2026-05-15 2026-03-31 13F TETRA TECH INC COM 88162G103 4,832,672 164,714 3.53 145,560 -7.03 0.0628
2026-02-17 2025-12-31 13F TETRA TECH INC COM 88162G103 4,667,958 381,708 8.91 156,563 9.43 0.1172
2025-11-13 2025-09-30 13F TETRA TECH INC COM 88162G103 4,286,250 -366,149 -7.87 143,075 -14.48 0.1124
2025-08-14 2025-06-30 13F TETRA TECH INC COM 88162G103 4,652,399 192,635 4.32 167,300 28.25 0.1429
2025-05-12 2025-03-31 13F TETRA TECH INC COM 88162G103 4,459,764 -354,337 -7.36 130,448 -31.99 0.1239
2025-02-13 2024-12-31 13F TETRA TECH INC COM 88162G103 4,814,101 -500,951 -9.43 191,794 -23.48 0.1792
2024-11-13 2024-09-30 13F TETRA TECH INC COM 88162G103 5,315,052 4,164,765 362.06 250,658 6.57 0.2272
2024-08-13 2024-06-30 13F TETRA TECH INC COM 88162G103 1,150,287 -104,801 -8.35 235,211 1.46 0.2326
2024-05-13 2024-03-31 13F TETRA TECH INC COM 88162G103 1,255,088 -136,128 -9.78 231,827 -0.18 0.2299
2024-02-13 2023-12-31 13F TETRA TECH INC COM 88162G103 1,391,216 -144,335 -9.40 232,236 -0.52 0.2440
2023-11-13 2023-09-30 13F TETRA TECH INC COM 88162G103 1,535,551 211,879 16.01 233,450 7.71 0.2749
2023-08-11 2023-06-30 13F TETRA TECH INC COM 88162G103 1,323,672 446,946 50.98 216,738 68.28 0.2435
2023-05-11 2023-03-31 13F TETRA TECH INC COM 88162G103 876,726 307,835 54.11 128,800 55.94 0.1477
2023-02-13 2022-12-31 13F TETRA TECH INC COM 88162G103 568,891 -27,706 -4.64 82,597 7.72 0.0991
2022-11-10 2022-09-30 13F TETRA TECH INC COM 88162G103 596,597 15,023 2.58 76,681 -3.44 0.0986
2022-08-12 2022-06-30 13F TETRA TECH INC COM 88162G103 581,574 280,053 92.88 79,414 59.68 0.0945
2022-05-13 2022-03-31 13F TETRA TECH INC COM 88162G103 301,521 -24,971 -7.65 49,733 -10.29 0.0510
2022-02-14 2021-12-31 13F TETRA TECH INC COM 88162G103 326,492 -89,502 -21.52 55,438 -10.76 0.0569
2021-11-15 2021-09-30 13F TETRA TECH INC COM 88162G103 415,994 -32,626 -7.27 62,125 13.47 0.0690
2021-08-13 2021-06-30 13F TETRA TECH INC COM 88162G103 448,620 13,009 2.99 54,750 -7.39 0.0588
2021-05-14 2021-03-31 13F TETRA TECH INC COM 88162G103 435,611 -22,591 -4.93 59,121 11.44 0.0673
2021-03-23 2020-12-31 13F/A-1 TETRA TECH INC COM 88162G103 458,202 26,156 6.05 53,051 28.58 0.0653
2021-02-08 2020-12-31 13F TETRA TECH INC COM 88162G103 458,202 26,156 53,051 25,658.2663
2020-11-13 2020-09-30 13F TETRA TECH INC COM 88162G103 432,046 898 0.21 41,260 20.95 0.0512
2020-08-13 2020-06-30 13F TETRA TECH INC COM 88162G103 431,148 25,747 6.35 34,112 19.15 0.0460
2020-05-14 2020-03-31 13F TETRA TECH INC COM 88162G103 405,401 141,096 53.38 28,629 25.71 0.0470
2020-02-07 2019-12-31 13F TETRA TECH INC COM 88162G103 264,305 91,654 53.09 22,773 52.03 0.0316
2019-11-13 2019-09-30 13F TETRA TECH INC COM 88162G103 172,651 126,493 274.04 14,979 313.10 0.0227
2019-08-13 2019-06-30 13F TETRA TECH INC COM 88162G103 46,158 30,758 199.73 3,626 294.99 0.0055
2019-05-13 2019-03-31 13F TETRA TECH INC COM 88162G103 15,400 9,400 156.67 918 195.18 0.0014
2019-02-13 2018-12-31 13F TETRA TECH INC COM 88162G103 6,000 6,000 311 0.0006
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.