Halliburton Company
US ˙ NYSE ˙ US4062161017

SecurityHAL / Halliburton Company
InstitutionSei Investments Co
Latest Disclosed Ownership378,489 shares
Latest Disclosed Value $ 10,696,245
Sei Investments Co reports 9.73% increase in ownership of HAL / Halliburton Company

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 378,489 shares of Halliburton Company (US:HAL) valued at $10,696,099 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 344,927 shares of Halliburton Company. This represents a change in shares of 9.73% during the quarter. The current value of the position is $15,529,404 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 HALLIBURTON COM 406216101 378,489 33,562 9.73 10,696 26.06 0.0106
2025-11-13 2025-09-30 13F HALLIBURTON COM 406216101 344,927 1,092 0.32 8,485 21.09 0.0091
2025-08-14 2025-06-30 13F HALLIBURTON COM 406216101 343,835 22,056 6.85 7,008 -14.16 0.0081
2025-05-14 2025-03-31 13F/A-1 HALLIBURTON COM 406216101 321,779 42,845 15.36 8,164 7.63 0.0105
2025-05-13 2025-03-31 13F HALLIBURTON COM 406216101 322,575 43,641 8,426 0.0092
2025-02-11 2024-12-31 13F HALLIBURTON COM 406216101 278,934 42,876 18.16 7,584 10.60 0.0097
2024-11-12 2024-09-30 13F HALLIBURTON COM 406216101 236,058 34,958 17.38 6,857 0.94 0.0089
2024-08-13 2024-06-30 13F HALLIBURTON COM 406216101 201,100 51,679 34.59 6,793 15.35 0.0096
2024-05-07 2024-03-31 13F HALLIBURTON COM 406216101 149,421 -6,466 -4.15 5,890 4.51 0.0086
2024-02-14 2023-12-31 13F HALLIBURTON COM 406216101 155,887 -28,693 -15.55 5,635 -24.63 0.0090
2023-11-14 2023-09-30 13F HALLIBURTON COM 406216101 184,580 -117,192 -38.83 7,476 -24.90 0.0134
2023-08-11 2023-06-30 13F HALLIBURTON COM 406216101 301,772 -68,767 -18.56 9,955 -15.08 0.0174
2023-05-12 2023-03-31 13F HALLIBURTON COM 406216101 370,539 69,443 23.06 11,724 -1.05 0.0218
2023-02-10 2022-12-31 13F HALLIBURTON COM 406216101 301,096 82,891 37.99 11,848 120.53 0.0263
2022-11-14 2022-09-30 13F HALLIBURTON COM 406216101 218,205 40,165 22.56 5,372 -3.50 0.0120
2022-08-15 2022-06-30 13F HALLIBURTON COM 406216101 178,040 11,633 6.99 5,567 -11.37 0.0120
2022-05-13 2022-03-31 13F HALLIBURTON COM 406216101 166,407 120,122 259.53 6,281 494.23 0.0126
2022-02-14 2021-12-31 13F HALLIBURTON COM 406216101 46,285 -40,512 -46.67 1,057 -43.69 0.0020
2021-11-12 2021-09-30 13F HALLIBURTON COM 406216101 86,797 -24,909 -22.30 1,877 -27.28 0.0039
2021-08-06 2021-06-30 13F HALLIBURTON COM 406216101 111,706 -40,213 -26.47 2,581 -20.61 0.0057
2021-05-12 2021-03-31 13F HALLIBURTON COM 406216101 151,919 -98,795 -39.41 3,251 -31.38 0.0082
2021-02-08 2020-12-31 13F HALLIBURTON COM 406216101 250,714 90,139 56.14 4,738 144.86 0.0122
2020-12-04 2020-09-30 13F/A-1 HALLIBURTON COM 406216101 160,575 -91,772 -36.37 1,935 -40.93 0.0056
2020-11-06 2020-09-30 13F HALLIBURTON COM 406216101 164,500 -87,847 1,982 4,772.2153
2020-08-17 2020-06-30 13F/A-1 HALLIBURTON COM 406216101 252,347 -304,887 -54.71 3,276 -14.17 0.0102
2020-08-11 2020-06-30 13F HALLIBURTON COM 406216101 1,084,881 527,647 26,512 82,913.0839
2020-05-14 2020-03-31 13F HALLIBURTON COM 406216101 557,234 -528,711 -48.69 3,817 -85.63 0.0140
2020-02-06 2019-12-31 13F HALLIBURTON COM 406216101 1,085,945 56,762 5.52 26,571 36.99 0.0793
2019-11-12 2019-09-30 13F HALLIBURTON COM 406216101 1,029,183 190,568 22.72 19,397 1.69 0.0496
2019-08-14 2019-06-30 13F HALLIBURTON COM 406216101 838,615 3,510 0.42 19,074 -22.33 0.0623
2019-05-15 2019-03-31 13F HALLIBURTON COM 406216101 835,105 114,523 15.89 24,559 -14.45 0.0825
2019-02-13 2018-12-31 13F HALLIBURTON COM 406216101 720,582 15,144 2.15 28,707 0.24 0.1022
2018-11-08 2018-09-30 13F HALLIBURTON COM 406216101 705,438 57,082 8.80 28,639 -1.98 0.1038
2018-08-03 2018-06-30 13F HALLIBURTON COM 406216101 648,356 -78,388 -10.79 29,217 -14.35 0.0993
2018-05-11 2018-03-31 13F HALLIBURTON COM 406216101 726,744 -8,409 -1.14 34,113 -5.05 0.1308
2018-02-08 2017-12-31 13F HALLIBURTON COM 406216101 735,153 32,128 4.57 35,927 11.02 0.1248
2017-11-06 2017-09-30 13F HALLIBURTON COM 406216101 703,025 -53,371 -7.06 32,360 0.17 0.1150
2017-07-31 2017-06-30 13F HALLIBURTON COM 406216101 756,396 -155,607 -17.06 32,306 -28.02 0.1288
2017-05-05 2017-03-31 13F HALLIBURTON COM 406216101 912,003 -29,839 -3.17 44,880 -11.90 0.1967
2017-02-02 2016-12-31 13F HALLIBURTON COM 406216101 941,842 140,545 17.54 50,945 41.66 0.2467
2016-11-04 2016-09-30 13F HALLIBURTON COM 406216101 801,297 -32,702 -3.92 35,962 -4.79 0.1827
2016-08-11 2016-06-30 13F HALLIBURTON COM 406216101 833,999 160,214 23.78 37,772 56.94 0.2265
2016-05-10 2016-03-31 13F/A-1 HALLIBURTON COM 406216101 673,785 292,704 76.81 24,068 85.54 0.1498
2016-02-03 2015-12-31 13F HALLIBURTON COM 406216101 381,081 147,048 62.83 12,972 56.80 0.0791
2015-11-02 2015-09-30 13F/A-1 HALLIBURTON COM 406216101 234,033 79,606 51.55 8,273 24.39 0.0759
2015-10-30 2015-09-30 13F HALLIBURTON COM 406216101 234,033 8,274
2015-08-07 2015-06-30 13F/A-1 HALLIBURTON COM 406216101 154,427 -999 -0.64 6,651 -2.56 0.0601
2015-08-04 2015-06-30 13F HALLIBURTON COM 406216101 154,427 -999 6,651 0.0601
2015-05-14 2015-03-31 13F/A-1 HALLIBURTON COM 406216101 155,426 -36,787 -19.14 6,826 -9.64 0.0593
2015-05-01 2015-03-31 13F HALLADOR ENERGY COM 406216101 155,426 6,826
2015-02-10 2014-12-31 13F HALLIBURTON COM 406216101 192,213 192,213 7,554 0.0668
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.