테트라테크(주)
US ˙ NasdaqGS ˙ US88162G1031

SecurityTTEK / Tetra Tech, Inc.
InstitutionAlgert Global Llc
Latest Disclosed Ownership202,109 shares
Latest Disclosed Value $ 6,088
Algert Global Llc reports 54.02% decrease in ownership of TTEK / Tetra Tech, Inc.

On May 14, 2026 - Algert Global Llc filed a 13F-HR form disclosing ownership of 202,109 shares of Tetra Tech, Inc. (US:TTEK) valued at $6,087,523 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 439,534 shares of Tetra Tech, Inc.. This represents a change in shares of -54.02% during the quarter. The current value of the position is $5,652,989 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)
2026-05-14 2026-03-31 13F TETRA TECH INC COM 88162G103 202,109 -237,425 -54.02 6 -57.14 0.0916
2026-02-17 2025-12-31 13F TETRA TECH INC COM 88162G103 439,534 127,145 40.70 15 40.00 0.2299
2025-11-14 2025-09-30 13F TETRA TECH INC COM 88162G103 312,389 35,740 12.92 10 11.11 0.1745
2025-08-14 2025-06-30 13F ETRA TECH INC COM 88162G103 276,649 11,647 4.40 10 28.57 0.2084
2025-05-13 2025-03-31 13F TETRA TECH INC COM 88162G103 265,002 85,603 47.72 8 0.00 0.1917
2025-02-14 2024-12-31 13F TETRA TECH INC COM 88162G103 179,399 34,614 23.91 7 16.67 0.1682
2024-11-12 2024-09-30 13F TETRA TECH INC COM 88162G103 144,785 123,458 578.88 7 50.00 0.1836
2024-08-15 2024-06-30 13F TETRA TECH INC COM 88162G103 21,327 6,214 41.12 4 100.00 0.1450
2024-05-15 2024-03-31 13F TETRA TECH INC COM 88162G103 15,113 -12,450 -45.17 3 -50.00 0.1093
2024-02-14 2023-12-31 13F TETRA TECH INC COM 88162G103 27,563 -4,970 -15.28 5 0.00 0.1853
2023-11-13 2023-09-30 13F TETRA TECH INC COM 88162G103 32,533 -3,735 -10.30 5 -20.00 0.2325
2023-08-14 2023-06-30 13F TETRA TECH INC COM 88162G103 36,268 18,505 104.18 6 150.00 0.2585
2023-05-12 2023-03-31 13F TETRA TECH INC COM 88162G103 17,763 2,022 12.85 3 0.00 0.1232
2023-02-14 2022-12-31 13F TETRA TECH INC COM 88162G103 15,741 0 0.00 2 -99.90 0.1266
2022-11-15 2022-09-30 13F TETRA TECH INC COM 88162G103 15,741 4,819 44.12 2,023 35.68 0.1223
2022-08-15 2022-06-30 13F TETRA TECH INC COM 88162G103 10,922 0 0.00 1,491 -17.21 0.1121
2022-05-16 2022-03-31 13F TETRA TECH INC COM 88162G103 10,922 5,860 115.76 1,801 109.42 0.1179
2022-02-14 2021-12-31 13F TETRA TECH INC COM 88162G103 5,062 1,430 39.37 860 58.67 0.1074
2021-11-15 2021-09-30 13F TETRA TECH INC COM 88162G103 3,632 3,632 542 0.0721
2020-02-18 2019-12-31 13F TETRA TECH INC COM 88162G103 0 -18,491 -100.00 0 -100.00
2019-11-13 2019-09-30 13F TETRA TECH INC COM 88162G103 18,491 18,491 1,604 0.5980
2017-05-02 2017-03-31 13F TETRA TECH INC COM 88162G103 0 -11,485 -100.00 0 -100.00
2017-01-25 2016-12-31 13F TETRA TECH INC COM 88162G103 11,485 11,485 496 0.1419
2016-10-11 2016-09-30 13F TETRA TECH INC COM 88162G103 0 -14,162 -100.00 0 -100.00
2016-08-12 2016-06-30 13F TETRA TECH INC COM 88162G103 14,162 14,162 435 0.1764
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.