TETRA Technologies, Inc.
US ˙ NYSE ˙ US88162F1057

SecurityTTI / TETRA Technologies, Inc.
InstitutionSei Investments Co
Latest Disclosed Ownership256,212 shares
Latest Disclosed Value $ 2,400,734
Sei Investments Co reports 250.16% increase in ownership of TTI / TETRA Technologies, Inc.

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 256,212 shares of TETRA Technologies, Inc. (US:TTI) valued at $2,400,706 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 73,170 shares of TETRA Technologies, Inc.. This represents a change in shares of 250.16% during the quarter. The current value of the position is $2,495,505 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)
2026-02-13 2025-12-31 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 256,212 183,042 250.16 2,401 471.43 0.0024
2025-11-13 2025-09-30 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 73,170 1,754 2.46 421 75.73 0.0005
2025-08-14 2025-06-30 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 71,416 8,603 13.70 240 13.81 0.0003
2025-05-14 2025-03-31 13F/A-1 TETRA TECHNOLOGIES INC DEL COM 88162F105 62,813 11,825 23.19 211 15.38 0.0003
2025-05-13 2025-03-31 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 62,813 11,825 213 0.0002
2025-02-11 2024-12-31 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 50,988 -5,387 -9.56 183 4.60 0.0002
2024-11-12 2024-09-30 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 56,375 144 0.26 175 -10.31 0.0002
2024-08-13 2024-06-30 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 56,231 11,349 25.29 195 -2.02 0.0003
2024-05-07 2024-03-31 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 44,882 14,406 47.27 199 44.53 0.0003
2024-02-14 2023-12-31 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 30,476 -71,036 -69.98 138 -78.83 0.0002
2023-11-14 2023-09-30 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 101,512 72,462 249.44 648 560.20 0.0012
2023-08-11 2023-06-30 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 29,050 2,995 11.49 98 44.12 0.0002
2023-05-12 2023-03-31 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 26,055 8,753 50.59 69 15.25 0.0001
2023-02-10 2022-12-31 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 17,302 1,032 6.34 60 1.72 0.0001
2022-11-14 2022-09-30 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 16,270 -73,905 -81.96 58 -84.15 0.0001
2022-08-15 2022-06-30 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 90,175 90,175 366 0.0008
2020-05-14 2020-03-31 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 0 -10,715 -100.00 0 -100.00
2020-02-06 2019-12-31 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 10,715 -783 -6.81 13 0.00 0.0000
2019-11-12 2019-09-30 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 11,498 -650 -5.35 13 18.18 0.0000
2019-08-14 2019-06-30 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 12,148 -61,925 -83.60 11 -93.29 0.0000
2019-05-15 2019-03-31 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 74,073 67,827 1,085.93 164 5,366.67 0.0006
2019-02-13 2018-12-31 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 6,246 -3,369 -35.04 3 -92.86 0.0000
2018-11-08 2018-09-30 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 9,615 -4,508 -31.92 42 -33.33 0.0002
2018-08-03 2018-06-30 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 14,123 1,232 9.56 63 31.25 0.0002
2018-05-11 2018-03-31 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 12,891 1,636 14.54 48 0.00 0.0002
2018-02-08 2017-12-31 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 11,255 128 1.15 48 50.00 0.0002
2017-11-06 2017-09-30 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 11,127 1,968 21.49 32 23.08 0.0001
2017-07-31 2017-06-30 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 9,159 -1,841 -16.74 26 -42.22 0.0001
2017-05-05 2017-03-31 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 11,000 415 3.92 45 -15.09 0.0002
2017-02-02 2016-12-31 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 10,585 -1,408 -11.74 53 -27.40 0.0003
2016-11-04 2016-09-30 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 11,993 854 7.67 73 2.82 0.0004
2016-08-11 2016-06-30 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 11,139 1,783 19.06 71 18.33 0.0004
2016-05-10 2016-03-31 13F/A-1 TETRA TECHNOLOGIES INC DEL COM 88162F105 9,356 2,774 42.15 60 22.45 0.0004
2016-02-03 2015-12-31 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 6,582 5,453 482.99 49 600.00 0.0003
2015-11-02 2015-09-30 13F/A-1 TETRA TECHNOLOGIES INC DEL COM 88162F105 1,129 -85 -7.00 7 -12.50 0.0001
2015-10-30 2015-09-30 13F DIREXION SHS ETF TR COM 88162F105 1,129 8
2015-08-07 2015-06-30 13F/A-1 TETRA TECHNOLOGIES INC DEL COM 88162F105 1,214 -110 -8.31 8 0.00 0.0001
2015-08-04 2015-06-30 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 1,214 1,214 8 0.0001
2015-05-14 2015-03-31 13F/A-1 TETRA TECHNOLOGIES INC DEL COM 88162F105 1,324 841 174.12 8 166.67 0.0001
2015-05-01 2015-03-31 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 1,324 8
2015-02-10 2014-12-31 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 483 483 3 0.0000
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.