Tetra Tech, Inc.
MX ˙ BMV ˙ US88162G1031
SecurityMX:TTEK / Tetra Tech, Inc.
InstitutionPnc Financial Services Group, Inc.
Latest Disclosed Ownership23,652 shares
Latest Disclosed Value $ 712,398
Pnc Financial Services Group, Inc. reports 0.65% increase in ownership of TTEK / Tetra Tech, Inc.

On May 8, 2026 - Pnc Financial Services Group, Inc. filed a 13F-HR form disclosing ownership of 23,652 shares of Tetra Tech, Inc. (MX:TTEK) valued at $712,398 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 23,499 shares of Tetra Tech, Inc.. This represents a change in shares of 0.65% 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)
2026-05-08 2026-03-31 13F TETRA TECH INC COM 88162G103 23,652 153 0.65 712 -9.64 0.0004
2026-02-06 2025-12-31 13F TETRA TECH INC COM 88162G103 23,499 568 2.48 788 3.01 0.0004
2025-11-07 2025-09-30 13F TETRA TECH INC COM 88162G103 22,931 742 3.34 765 -4.02 0.0005
2025-08-08 2025-06-30 13F TETRA TECH INC COM 88162G103 22,189 -1,044 -4.49 798 17.38 0.0005
2025-05-09 2025-03-31 13F TETRA TECH INC COM 88162G103 23,233 284 1.24 680 -25.71 0.0004
2025-02-07 2024-12-31 13F TETRA TECH INC COM 88162G103 22,949 -33 -0.14 914 -15.60 0.0006
2024-11-08 2024-09-30 13F TETRA TECH INC COM 88162G103 22,982 18,955 470.70 1,084 31.59 0.0007
2024-08-09 2024-06-30 13F TETRA TECH INC COM 88162G103 4,027 516 14.70 823 27.01 0.0005
2024-05-10 2024-03-31 13F TETRA TECH INC COM 88162G103 3,511 -38 -1.07 648 9.46 0.0005
2024-03-22 2023-12-31 13F/A-1 TETRA TECH INC COM 88162G103 3,549 -828 -18.92 593 -10.98 0.0005
2024-02-09 2023-12-31 13F TETRA TECH INC COM 88162G103 3,549 -828 593 0.0001
2023-11-13 2023-09-30 13F TETRA TECH INC COM 88162G103 4,377 -567 -11.47 666 -17.80 0.0006
2023-08-11 2023-06-30 13F TETRA TECH INC COM 88162G103 4,944 381 8.35 810 20.75 0.0007
2023-05-15 2023-03-31 13F TETRA TECH INC COM 88162G103 4,563 87 1.94 670 3.24 0.0006
2023-02-10 2022-12-31 13F TETRA TECH INC COM 88162G103 4,476 197 4.60 650 18.21 0.0006
2022-11-10 2022-09-30 13F TETRA TECH INC COM 88162G103 4,279 99 2.37 549 -3.68 0.0006
2022-08-12 2022-06-30 13F TETRA TECH INC COM 88162G103 4,180 -84 -1.97 570 -18.92 0.0006
2022-05-12 2022-03-31 13F TETRA TECH INC COM 88162G103 4,264 -50 -1.16 703 -4.09 0.0006
2022-02-11 2021-12-31 13F TETRA TECH INC COM 88162G103 4,314 -268 -5.85 733 7.16 0.0006
2021-11-05 2021-09-30 13F TETRA TECH INC COM 88162G103 4,582 -370 -7.47 684 13.06 0.0006
2021-08-06 2021-06-30 13F TETRA TECH INC COM 88162G103 4,952 -1,404 -22.09 605 -29.81 0.0005
2021-05-07 2021-03-31 13F TETRA TECH INC COM 88162G103 6,356 -4,187 -39.71 862 -29.40 0.0008
2021-02-12 2020-12-31 13F TETRA TECH Common Stock 88162G103 10,543 -4,790 -31.24 1,221 -16.66 0.0012
2020-11-06 2020-09-30 13F TETRA TECH Common Stock 88162G103 15,333 -774 -4.81 1,465 14.90 0.0018
2020-08-28 2020-06-30 13F/A-1 TETRA TECH Common Stock 88162G103 16,107 -1,861 -10.36 1,275 0.47 0.0017
2020-08-07 2020-06-30 13F TETRA TECH Common Stock 88162G103 16,107 -1,861 1,275 264.7390
2020-05-08 2020-03-31 13F TETRA TECH Common Stock 88162G103 17,968 -450 -2.44 1,269 -20.04 0.0016
2020-02-07 2019-12-31 13F TETRA TECH Common Stock 88162G103 18,418 -30 -0.16 1,587 -0.81 0.0016
2019-11-08 2019-09-30 13F TETRA TECH Common Stock 88162G103 18,448 -392 -2.08 1,600 8.04 0.0016
2019-08-09 2019-06-30 13F TETRA TECH Common Stock 88162G103 18,840 271 1.46 1,481 33.91 0.0015
2019-05-10 2019-03-31 13F TETRA TECH Common Stock 88162G103 18,569 1,190 6.85 1,106 22.89 0.0011
2019-02-08 2018-12-31 13F TETRA TECH Common Stock 88162G103 17,379 5,451 45.70 900 10.43 0.0010
2018-11-09 2018-09-30 13F TETRA TECH Common Stock 88162G103 11,928 56 0.47 815 17.60 0.0008
2018-08-10 2018-06-30 13F TETRA TECH Common Stock 88162G103 11,872 402 3.50 693 23.31 0.0007
2018-05-11 2018-03-31 13F TETRA TECH Common Stock 88162G103 11,470 -1,524 -11.73 562 -10.08 0.0006
2018-02-09 2017-12-31 13F TETRA TECH Common Stock 88162G103 12,994 2,934 29.17 625 33.55 0.0006
2017-11-13 2017-09-30 13F TETRA TECH Common Stock 88162G103 10,060 1,593 18.81 468 20.93 0.0005
2017-08-11 2017-06-30 13F TETRA TECH 88162G103 8,467 -17,169 -66.97 387 -63.04 0.0004
2017-05-12 2017-03-31 13F TETRA TECH Common Stock 88162G103 25,636 19,899 346.85 1,047 323.89 0.0012
2017-02-10 2016-12-31 13F TETRA TECH Common Stock 88162G103 5,737 -3,676 -39.05 247 -26.05 0.0003
2016-11-04 2016-09-30 13F TETRA TECH Common Stock 88162G103 9,413 -2,880 -23.43 334 -11.64 0.0004
2016-08-05 2016-06-30 13F TETRA TECH Common Stock 88162G103 12,293 1,031 9.15 378 12.50 0.0004
2016-05-06 2016-03-31 13F TETRA TECH Common Stock 88162G103 11,262 4,889 76.71 336 102.41 0.0004
2016-02-05 2015-12-31 13F TETRA TECH INC COM 88162G103 6,373 -4,638 -42.12 166 -37.83 0.0002
2015-11-06 2015-09-30 13F TETRA TECH Common Stock 88162G103 11,011 579 5.55 267 0.00 0.0003
2015-08-05 2015-06-30 13F TETRA TECH Common Stock 88162G103 10,432 -6,432 -38.14 267 -34.07 0.0003
2015-05-08 2015-03-31 13F TETRA TECH Common Stock 88162G103 16,864 1,971 13.23 405 1.76 0.0004
2015-02-06 2014-12-31 13F/A-1 TETRA TECH Common Stock 88162G103 14,893 2,688 22.02 398 30.92 0.0004
2015-02-06 2014-12-31 13F TETRA TECH Common Stock 88162G103 14,893 398
2014-11-07 2014-09-30 13F TETRA TECH INC COM 88162G103 12,205 -1,823 -13.00 304 -21.24 0.0004
2014-08-08 2014-06-30 13F TETRA TECH INC COM 88162G103 14,028 4,885 53.43 386 42.96 0.0005
2014-05-09 2014-03-31 13F TETRA TECH INC COM 88162G103 9,143 1,521 19.96 270 26.76 0.0004
2014-02-07 2013-12-31 13F TETRA TECH INC COM 88162G103 7,622 1,439 23.27 213 32.30 0.0003
2013-11-01 2013-09-30 13F TETRA TECH INC COM 88162G103 6,183 526 9.30 161 21.05 0.0002
2013-08-02 2013-06-30 13F TETRA TECH INC COM 88162G103 5,657 5,657 133 0.0002
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.