Tetra Tech, Inc.
MX ˙ BMV ˙ US88162G1031
SecurityMX:TTEK / Tetra Tech, Inc.
InstitutionSystematic Financial Management Lp
Latest Disclosed Ownership286,651 shares
Latest Disclosed Value $ 8,633,954
Systematic Financial Management Lp reports 0.04% decrease in ownership of TTEK / Tetra Tech, Inc.

On May 13, 2026 - Systematic Financial Management Lp filed a 13F-HR form disclosing ownership of 286,651 shares of Tetra Tech, Inc. (MX:TTEK) valued at $8,633,954 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 286,772 shares of Tetra Tech, Inc.. This represents a change in shares of -0.04% during the quarter.

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 TETRA TECH COM 88162G103 286,651 -121 -0.04 8,634 -10.24 0.1628
2026-02-09 2025-12-31 13F TETRA TECH COM 88162G103 286,772 103,582 56.54 9,618 57.31 0.2267
2025-11-13 2025-09-30 13F TETRA TECH COM 88162G103 183,190 774 0.42 6,115 -6.78 0.1487
2025-08-13 2025-06-30 13F TETRA TECH COM 88162G103 182,416 2,645 1.47 6,560 24.74 0.1750
2025-05-14 2025-03-31 13F TETRA TECH COM 88162G103 179,771 -1,448 -0.80 5,258 -27.16 0.1498
2025-02-14 2024-12-31 13F TETRA TECH COM 88162G103 181,219 -44,937 -19.87 7,220 -32.31 0.1837
2024-11-14 2024-09-30 13F TETRA TECH COM 88162G103 226,156 181,253 403.65 10,666 16.16 0.2717
2024-08-16 2024-06-30 13F TETRA TECH COM 88162G103 44,903 -6,822 -13.19 9,182 -3.90 0.2789
2024-05-15 2024-03-31 13F TETRA TECH COM 88162G103 51,725 -1,657 -3.10 9,554 7.22 0.2667
2024-02-14 2023-12-31 13F TETRA TECH COM 88162G103 53,382 -876 -1.61 8,911 8.04 0.2644
2023-11-14 2023-09-30 13F TETRA TECH COM 88162G103 54,258 -1,147 -2.07 8,249 -9.08 0.2656
2023-08-14 2023-06-30 13F TETRA TECH COM 88162G103 55,405 -4,760 -7.91 9,072 2.65 0.2863
2023-05-12 2023-03-31 13F TETRA TECH COM 88162G103 60,165 -1,412 -2.29 8,839 -1.14 0.2890
2023-02-15 2022-12-31 13F Tetra Tech COM 88162G103 61,577 -3,174 -4.90 8,940 7.43 0.2929
2022-11-14 2022-09-30 13F Tetra Tech COM 88162G103 64,751 -930 -1.42 8,322 -7.21 0.3036
2022-08-15 2022-06-30 13F Tetra Tech COM 88162G103 65,681 1,943 3.05 8,969 -14.69 0.3115
2022-05-11 2022-03-31 13F Tetra Tech COM 88162G103 63,738 -318 -0.50 10,513 -3.35 0.3280
2022-02-14 2021-12-31 13F Tetra Tech COM 88162G103 64,056 -54,107 -45.79 10,877 -38.36 0.3225
2021-11-12 2021-09-30 13F Tetra Tech COM 88162G103 118,163 -5,927 -4.78 17,646 16.52 0.5465
2021-08-12 2021-06-30 13F Tetra Tech COM 88162G103 124,090 19,742 18.92 15,144 6.93 0.4579
2021-05-10 2021-03-31 13F Tetra Tech COM 88162G103 104,348 -12,269 -10.52 14,162 4.89 0.5183
2021-02-12 2020-12-31 13F Tetra Tech COM 88162G103 116,617 -29,977 -20.45 13,502 -3.56 0.5925
2020-11-12 2020-09-30 13F Tetra Tech COM 88162G103 146,594 -24,396 -14.27 14,000 3.48 0.7656
2020-08-13 2020-06-30 13F Tetra Tech COM 88162G103 170,990 -4,559 -2.60 13,529 9.13 0.7032
2020-05-12 2020-03-31 13F Tetra Tech COM 88162G103 175,549 -51,797 -22.78 12,397 -36.71 0.7611
2020-02-14 2019-12-31 13F Tetra Tech COM 88162G103 227,346 -19,047 -7.73 19,588 -8.37 0.7660
2019-11-06 2019-09-30 13F Tetra Tech COM 88162G103 246,393 -31,369 -11.29 21,377 -2.02 0.9579
2019-07-26 2019-06-30 13F Tetra Tech COM 88162G103 277,762 -5,494 -1.94 21,818 29.26 0.8485
2019-05-03 2019-03-31 13F Tetra Tech COM 88162G103 283,256 2,846 1.01 16,879 16.27 0.5776
2019-02-13 2018-12-31 13F Tetra Tech COM 88162G103 280,410 38,344 15.84 14,517 -12.19 0.4462
2018-11-06 2018-09-30 13F Tetra Tech COM 88162G103 242,066 -8,980 -3.58 16,533 12.58 0.3991
2018-08-08 2018-06-30 13F Tetra Tech COM 88162G103 251,046 32,282 14.76 14,686 37.15 0.3588
2018-05-09 2018-03-31 13F Tetra Tech COM 88162G103 218,764 -25,217 -10.34 10,708 -8.85 0.2372
2018-02-09 2017-12-31 13F Tetra Tech COM 88162G103 243,981 -7,092 -2.82 11,748 0.52 0.2347
2017-11-08 2017-09-30 13F Tetra Tech COM 88162G103 251,073 -62,773 -20.00 11,687 -18.60 0.2371
2017-08-10 2017-06-30 13F Tetra Tech COM 88162G103 313,846 -7,044 -2.20 14,358 9.54 0.2654
2017-05-11 2017-03-31 13F Tetra Tech COM 88162G103 320,890 -15,514 -4.61 13,108 -9.70 0.2321
2017-02-10 2016-12-31 13F Tetra Tech COM 88162G103 336,404 -28,809 -7.89 14,516 12.06 0.2306
2017-01-26 2016-09-30 13F/A-4 Tetra Tech COM 88162G103 365,213 -57,687 -13.64 12,954 -0.37 0.1816
2016-11-14 2016-09-30 13F Tetra Tech COM 88162G103 365,213 12,954
2017-01-25 2016-06-30 13F/A-2 Tetra Tech COM 88162G103 422,900 -44,711 -9.56 13,002 -6.76 0.1773
2016-08-09 2016-06-30 13F Tetra Tech COM 88162G103 422,900 13,002
2016-05-11 2016-03-31 13F Tetra Tech COM 88162G103 467,611 40,969 9.60 13,944 25.61 0.1744
2016-02-10 2015-12-31 13F Tetra Tech COM 88162G103 426,642 -38,327 -8.24 11,101 -1.79 0.1213
2015-11-06 2015-09-30 13F Tetra Tech COM 88162G103 464,969 156,413 50.69 11,303 42.88 0.1199
2015-08-10 2015-06-30 13F Tetra Tech COM 88162G103 308,556 214,951 229.64 7,911 251.91 0.0677
2015-05-11 2015-03-31 13F Tetra Tech COM 88162G103 93,605 5,875 6.70 2,248 -4.01 0.0178
2015-02-10 2014-12-31 13F Tetra Tech COM 88162G103 87,730 87,730 2,342 0.0173
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.