Tetra Tech, Inc.
MX ˙ BMV ˙ US88162G1031
SecurityMX:TTEK / Tetra Tech, Inc.
InstitutionCWM Advisors, LLC
Latest Disclosed Ownership12,697 shares
Latest Disclosed Value $ 382,434
CWM Advisors, LLC reports 4,568.01% increase in ownership of TTEK / Tetra Tech, Inc.

On May 13, 2026 - CWM Advisors, LLC filed a 13F-HR/A form disclosing ownership of 12,697 shares of Tetra Tech, Inc. (MX:TTEK) valued at $382,434 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 272 shares of Tetra Tech, Inc.. This represents a change in shares of 4,568.01% 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/A-1 TETRA TECH INC COM 88162G103 12,697 12,425 4,568.01 382 4,144.44 0.0767
2026-04-23 2026-03-31 13F TETRA TECH INC COM 88162G103 274 2 8 0.0007
2026-02-17 2025-12-31 13F TETRA TECH INC COM 88162G103 272 272 9 0.0008
2025-07-24 2025-06-30 13F TETRA TECH INC COM 88162G103 0 -74,727 -100.00 0 -100.00
2025-06-03 2025-03-31 13F TETRA TECH INC COM 88162G103 74,727 74,727 2,186 0.2598
2024-10-10 2024-09-30 13F TETRA TECH INC COM 88162G103 0 -6,463 -100.00 0 -100.00
2024-08-12 2024-06-30 13F TETRA TECH INC COM 88162G103 6,463 -1,718 -21.00 1,322 -12.57 0.1523
2024-05-07 2024-03-31 13F TETRA TECH INC COM 88162G103 8,181 -442 -5.13 1,511 5.00 0.1546
2024-02-12 2023-12-31 13F TETRA TECH INC COM 88162G103 8,623 233 2.78 1,439 12.86 0.1583
2023-10-26 2023-09-30 13F TETRA TECH INC COM 88162G103 8,390 500 6.34 1,276 -1.24 0.1629
2023-07-31 2023-06-30 13F TETRA TECH INC COM 88162G103 7,890 5,982 313.52 1,292 361.07 0.1563
2023-04-24 2023-03-31 13F TETRA TECH INC COM 88162G103 1,908 227 13.50 280 14.75 0.0357
2023-01-26 2022-12-31 13F TETRA TECH INC COM 88162G103 1,681 33 2.00 244 15.09 0.0314
2022-11-07 2022-09-30 13F TETRA TECH INC COM 88162G103 1,648 50 3.13 212 -2.75 0.0300
2022-08-10 2022-06-30 13F TETRA TECH INC COM 88162G103 1,598 87 5.76 218 -12.45 0.0289
2022-04-21 2022-03-31 13F TETRA TECH INC COM 88162G103 1,511 -64 -4.06 249 -6.74 0.0288
2022-02-14 2021-12-31 13F/A-1 TETRA TECH INC COM 88162G103 1,575 -109 -6.47 267 5.95 0.0306
2021-11-09 2021-09-30 13F TETRA TECH INC COM 88162G103 1,684 1,684 252 0.0319
2020-08-12 2020-06-30 13F TETRA TECH INC COM 88162G103 0 -131 -100.00 0 -100.00
2020-05-08 2020-03-31 13F TETRA TECH INC COM 88162G103 131 131 9 0.0036
2020-01-24 2019-12-31 13F TETRA TECH INC COM 88162G103 0 -2,569 -100.00 0 -100.00
2019-11-13 2019-09-30 13F TETRA TECH INC COM 88162G103 2,569 23 0.90 223 11.50 0.0850
2019-07-16 2019-06-30 13F TETRA TECH INC COM 88162G103 2,546 2,546 200 0.0841
2019-02-22 2018-03-31 13F/A-1 Tetra Tech COM 88162G103 0 -1,447 -100.00 0 -100.00
2019-02-21 2017-12-31 13F/A-1 TETRA TECH INC COM 88162G103 1,447 1,447 70 0.0595
2018-02-15 2017-12-31 13F Tetra Tech COM 88162G103 1,447 70
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.