Tetra Tech, Inc.
US ˙ NasdaqGS ˙ US88162G1031

SecurityTTEK / Tetra Tech, Inc.
InstitutionAgf Management Ltd
Latest Disclosed Ownership100,841 shares
Latest Disclosed Value $ 3,037,331
Agf Management Ltd reports 19.25% increase in ownership of TTEK / Tetra Tech, Inc.

On May 7, 2026 - Agf Management Ltd filed a 13F-HR form disclosing ownership of 100,841 shares of Tetra Tech, Inc. (US:TTEK) valued at $3,037,331 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 84,560 shares of Tetra Tech, Inc.. This represents a change in shares of 19.25% during the quarter. The current value of the position is $2,820,523 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)
2026-05-07 2026-03-31 13F Tetra Tech COM 88162G103 100,841 16,281 19.25 3,037 7.09 0.0122
2026-02-17 2025-12-31 13F Tetra Tech COM 88162G103 84,560 -4,922 -5.50 2,836 -5.02 0.0123
2025-11-04 2025-09-30 13F Tetra Tech COM 88162G103 89,482 5,260 6.25 2,987 -1.39 0.0131
2025-08-06 2025-06-30 13F Tetra Tech COM 88162G103 84,222 -5,680 -6.32 3,029 15.18 0.0137
2025-05-12 2025-03-31 13F Tetra Tech COM 88162G103 89,902 -176,590 -66.26 2,630 -75.24 0.0139
2025-02-07 2024-12-31 13F Tetra Tech COM 88162G103 266,492 -144,651 -35.18 10,617 -45.24 0.0528
2024-11-12 2024-09-30 13F Tetra Tech COM 88162G103 411,143 320,951 355.85 19,390 5.14 0.0982
2024-08-07 2024-06-30 13F Tetra Tech COM 88162G103 90,192 -119,665 -57.02 18,442 -52.42 0.1024
2024-05-13 2024-03-31 13F Tetra Tech COM 88162G103 209,857 -5,810 -2.69 38,763 7.67 0.2148
2024-02-06 2023-12-31 13F Tetra Tech COM 88162G103 215,667 -44,427 -17.08 36,001 -8.96 0.2121
2023-11-13 2023-09-30 13F Tetra Tech COM 88162G103 260,094 -14,811 -5.39 39,542 -12.15 0.2805
2023-08-09 2023-06-30 13F Tetra Tech COM 88162G103 274,905 16,141 6.24 45,013 18.41 0.3265
2023-05-02 2023-03-31 13F Tetra Tech COM 88162G103 258,764 -2,386 -0.91 38,015 0.26 0.2607
2023-02-14 2022-12-31 13F Tetra Tech COM 88162G103 261,150 261,150 37,916 0.2752
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.