Tetra Tech, Inc.
US ˙ NasdaqGS ˙ US88162G1031

SecurityTTEK / Tetra Tech, Inc.
InstitutionArkadios Wealth Advisors
Latest Disclosed Ownership20,603 shares
Latest Disclosed Value $ 620,552
Arkadios Wealth Advisors reports 2.94% decrease in ownership of TTEK / Tetra Tech, Inc.

On May 18, 2026 - Arkadios Wealth Advisors filed a 13F-HR form disclosing ownership of 20,603 shares of Tetra Tech, Inc. (US:TTEK) valued at $620,562 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 21,226 shares of Tetra Tech, Inc.. This represents a change in shares of -2.94% during the quarter. The current value of the position is $574,824 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-18 2026-03-31 13F TETRA TECH INC NEW COM Stock 88162G103 20,603 -623 -2.94 621 -12.80 0.0065
2026-02-13 2025-12-31 13F TETRA TECH INC NEW COM Stock 88162G103 21,226 -1,803 -7.83 712 -7.42 0.0138
2025-10-29 2025-09-30 13F TETRA TECH INC NEW COM Stock 88162G103 23,029 782 3.52 769 -4.00 0.0184
2025-08-04 2025-06-30 13F TETRA TECH INC NEW COM Stock 88162G103 22,247 933 4.38 800 28.41 0.0236
2025-05-08 2025-03-31 13F TETRA TECH INC NEW COM Stock 88162G103 21,314 630 3.05 623 -24.39 0.0235
2025-01-15 2024-12-31 13F TETRA TECH INC NEW COM Stock 88162G103 20,684 -1,626 -7.29 824 -21.67 0.0449
2024-10-24 2024-09-30 13F TETRA TECH INC NEW COM Stock 88162G103 22,310 19,193 615.75 1,052 65.15 0.0596
2024-07-29 2024-06-30 13F TETRA TECH INC NEW COM Stock 88162G103 3,117 165 5.59 637 16.88 0.0430
2024-04-30 2024-03-31 13F TETRA TECH INC NEW COM Stock 88162G103 2,952 -108 -3.53 545 6.86 0.0423
2024-01-24 2023-12-31 13F TETRA TECH INC NEW COM Stock 88162G103 3,060 74 2.48 511 12.58 0.0432
2023-10-13 2023-09-30 13F TETRA TECH INC NEW COM Stock 88162G103 2,986 -6 -0.20 454 -7.36 0.0431
2023-07-26 2023-06-30 13F TETRA TECH INC NEW COM Stock 88162G103 2,992 4 0.13 490 11.64 0.0570
2023-05-02 2023-03-31 13F TETRA TECH INC NEW COM Stock 88162G103 2,988 704 30.82 439 32.33 0.0523
2023-01-11 2022-12-31 13F TETRA TECH INC NEW COM Stock 88162G103 2,284 29 1.29 332 0.0440
2022-10-21 2022-09-30 13F TETRA TECH INC NEW COM Stock 88162G103 2,255 -530 -19.03 0 0.0440
2022-07-14 2022-06-30 13F TETRA TECH INC NEW COM Stock 88162G103 2,785 2,785 0 0.0565
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.