TETRA Technologies, Inc.
US ˙ NYSE ˙ US88162F1057

SecurityTTI / TETRA Technologies, Inc.
InstitutionNorthern Trust Corp
Latest Disclosed Ownership1,252,987 shares
Latest Disclosed Value $ 10,675,449
Northern Trust Corp reports 4.92% increase in ownership of TTI / TETRA Technologies, Inc.

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 1,252,987 shares of TETRA Technologies, Inc. (US:TTI) valued at $10,675,449 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 1,194,233 shares of TETRA Technologies, Inc.. This represents a change in shares of 4.92% during the quarter. The current value of the position is $12,204,093 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 TECHNOLOGIES INC DEL COM 88162F105 1,252,987 58,754 4.92 10,675 -4.59 0.0003
2026-02-17 2025-12-31 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 1,194,233 -51,431 -4.13 11,190 56.23 0.0003
2025-11-14 2025-09-30 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 1,245,664 29,952 2.46 7,163 75.37 0.0002
2025-08-13 2025-06-30 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 1,215,712 105,437 9.50 4,085 9.49 0.0006
2025-05-13 2025-03-31 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 1,110,275 -79,438 -6.68 3,731 -12.42 0.0006
2025-02-14 2024-12-31 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 1,189,713 99,588 9.14 4,259 26.04 0.0006
2024-11-13 2024-09-30 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 1,090,125 12,497 1.16 3,379 -9.36 0.0006
2024-08-14 2024-06-30 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 1,077,628 -43,491 -3.88 3,729 -24.93 0.0006
2024-05-14 2024-03-31 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 1,121,119 -40,370 -3.48 4,967 -5.39 0.0009
2024-02-13 2023-12-31 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 1,161,489 1,630 0.14 5,250 -29.06 0.0010
2023-11-13 2023-09-30 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 1,159,859 31,273 2.77 7,400 94.00 0.0014
2023-08-11 2023-06-30 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 1,128,586 19,801 1.79 3,815 29.82 0.0007
2023-05-15 2023-03-31 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 1,108,785 27,088 2.50 2,938 -21.49 0.0006
2023-02-13 2022-12-31 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 1,081,697 27,659 2.62 3,743 -1.11 0.0008
2022-11-14 2022-09-30 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 1,054,038 -35,472 -3.26 3,784 -14.47 0.0009
2022-08-12 2022-06-30 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 1,089,510 -4,001 -0.37 4,424 -1.58 0.0009
2022-05-13 2022-03-31 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 1,093,511 -52,999 -4.62 4,495 38.01 0.0008
2022-02-08 2021-12-31 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 1,146,510 -26,854 -2.29 3,257 -11.04 0.0005
2021-11-15 2021-09-30 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 1,173,364 -58,920 -4.78 3,661 -31.54 0.0006
2021-08-13 2021-06-30 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 1,232,284 910,485 282.94 5,348 592.75 0.0009
2021-05-12 2021-03-31 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 321,799 -19,636 -5.75 772 162.59 0.0001
2021-02-11 2020-12-31 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 341,435 -11,505 -3.26 294 63.33 0.0001
2020-11-16 2020-09-30 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 352,940 -46,719 -11.69 180 -15.89 0.0000
2020-08-14 2020-06-30 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 399,659 -1,090,954 -73.19 214 -55.14 0.0001
2020-05-14 2020-03-31 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 1,490,613 3,160 0.21 477 -83.64 0.0001
2020-02-14 2019-12-31 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 1,487,453 -123,200 -7.65 2,916 -9.92 0.0007
2019-11-13 2019-09-30 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 1,610,653 9,094 0.57 3,237 23.98 0.0008
2019-08-13 2019-06-30 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 1,601,559 29,216 1.86 2,611 -29.05 0.0006
2019-05-13 2019-03-31 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 1,572,343 12,168 0.78 3,680 40.40 0.0009
2019-02-12 2018-12-31 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 1,560,175 -8,044 -0.51 2,621 -62.94 0.0007
2018-11-14 2018-09-30 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 1,568,219 45,116 2.96 7,072 4.34 0.0017
2018-09-18 2018-06-30 13F/A-1 TETRA TECHNOLOGIES INC DEL COM 88162F105 1,523,103 175,398 13.01 6,778 34.11 0.0017
2018-08-14 2018-06-30 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 1,526,947 179,242 6,795
2018-05-09 2018-03-31 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 1,347,705 18,382 1.38 5,054 -10.97 0.0013
2018-02-14 2017-12-31 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 1,329,323 -43,378 -3.16 5,677 44.60 0.0014
2017-11-13 2017-09-30 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 1,372,701 -2,647 -0.19 3,926 2.32 0.0010
2017-08-11 2017-06-30 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 1,375,348 -1,565 -0.11 3,837 -31.53 0.0011
2017-05-12 2017-03-31 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 1,376,913 271,308 24.54 5,604 0.97 0.0016
2017-02-13 2016-12-31 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 1,105,605 -33,450 -2.94 5,550 -20.26 0.0017
2016-11-09 2016-09-30 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 1,139,055 132,003 13.11 6,960 8.50 0.0022
2016-08-12 2016-06-30 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 1,007,052 54,447 5.72 6,415 6.76 0.0021
2016-08-19 2016-03-31 13F/A-1 TETRA TECHNOLOGIES INC DEL COM 88162F105 952,605 11,958 1.27 6,009 -15.06 0.0020
2016-05-13 2016-03-31 13F Tetra Technologies I COMM 88162F105 952,605 6,050
2016-02-12 2015-12-31 13F Tetra Technologies I COMM 88162F105 940,647 18,161 1.97 7,074 29.75 0.0023
2015-11-12 2015-09-30 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 922,486 922,486 0.00 5,452 0.0018
2015-08-13 2015-06-30 13F Tetra Technologies I COMM 88162F105 0 -1,078,994 -100.00 0 -100.00
2015-05-14 2015-03-31 13F Tetra Technologies I COMM 88162F105 1,078,994 -6,601 -0.61 6,668 -8.04 0.0020
2015-02-12 2014-12-31 13F Tetra Technologies I COM 88162F105 1,085,595 -37,063 -3.30 7,251 -40.31 0.0022
2014-11-13 2014-09-30 13F Tetra Technologies I COMM 88162F105 1,122,658 15,962 1.44 12,147 -6.83 0.0038
2014-08-14 2014-06-30 13F TETRA TECHNOLOGIES INC DEL com 88162F105 1,106,696 -152,594 -12.12 13,037 -19.12 0.0041
2014-05-14 2014-03-31 13F TETRA TECHNOLOGIES INC DEL COMM 88162F105 1,259,290 -7,719 -0.61 16,119 2.93 0.0051
2014-02-21 2013-12-31 13F/A-1 TETRA TECHNOLOGIES INC DEL COM 88162F105 1,267,009 -1,042 -0.08 15,660 -1.44 0.0050
2014-02-12 2013-12-31 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 1,267,009 15,660
2013-11-13 2013-09-30 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 1,268,051 77,364 6.50 15,888 30.06 0.0056
2013-08-09 2013-06-30 13F TETRA TECHNOLOGIES INC DEL COM 88162F105 1,190,687 1,190,687 12,216 0.0044
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.