Halliburton Company
US ˙ NYSE ˙ US4062161017

SecurityHAL / Halliburton Company
InstitutionBlume Capital Management, Inc.
Latest Disclosed Ownership2 shares
Latest Disclosed Value $ 78
Blume Capital Management, Inc. reports 99.91% decrease in ownership of HAL / Halliburton Company

On May 1, 2026 - Blume Capital Management, Inc. filed a 13F-HR form disclosing ownership of 2 shares of Halliburton Company (US:HAL) valued at $78 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 2,202 shares of Halliburton Company. This represents a change in shares of -99.91% during the quarter. The current value of the position is $82 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)
2026-05-01 2026-03-31 13F HALLIBURTON COM 406216101 2 -2,200 -99.91 0 -100.00 0.0000
2026-02-05 2025-12-31 13F HALLIBURTON COM 406216101 2,202 -500 -18.50 62 -6.06 0.0113
2025-11-06 2025-09-30 13F HALLIBURTON COM 406216101 2,702 2 0.07 66 20.00 0.0126
2025-07-30 2025-06-30 13F HALLIBURTON COM 406216101 2,700 695 34.66 55 10.00 0.0111
2025-05-06 2025-03-31 13F HALLIBURTON COM 406216101 2,005 405 25.31 51 16.28 0.0114
2025-02-10 2024-12-31 13F HALLIBURTON COM 406216101 1,600 400 33.33 44 26.47 0.0097
2024-10-29 2024-09-30 13F HALLIBURTON COM 406216101 1,200 -700 -36.84 35 -46.87 0.0078
2024-08-05 2024-06-30 13F HALLIBURTON COM 406216101 1,900 -200 -9.52 64 -21.95 0.0155
2024-05-02 2024-03-31 13F HALLIBURTON COM 406216101 2,100 -300 -12.50 83 -4.65 0.0200
2024-05-02 2023-12-31 13F/A-1 HALLIBURTON COM 406216101 2,400 0 0.00 87 -11.34 0.0227
2024-02-07 2023-12-31 13F HALLIBURTON COM 406216101 2,400 0 87 0.0227
2024-05-02 2023-09-30 13F/A-1 HALLIBURTON COM 406216101 2,400 0 0.00 97 22.78 0.0288
2023-11-03 2023-09-30 13F HALLIBURTON COM 406216101 2,400 0 97 0.0288
2024-05-02 2023-06-30 13F/A-1 HALLIBURTON COM 406216101 2,400 600 33.33 79 41.07 0.0232
2023-08-10 2023-06-30 13F HALLIBURTON COM 406216101 2,400 600 79 0.0232
2024-05-02 2023-03-31 13F/A-1 Halliburton COM 406216101 1,800 200 12.50 57 -9.68 0.0180
2023-05-08 2023-03-31 13F Halliburton COM 406216101 1,800 200 57 0.0180
2023-02-08 2022-12-31 13F Halliburton COM 406216101 1,600 0 0.00 63 58.97 0.0213
2022-11-15 2022-09-30 13F HALLIBURTON COM 406216101 1,600 100 6.67 39 -17.02 0.0147
2022-08-11 2022-06-30 13F HALLIBURTON COM 406216101 1,500 50 3.45 47 -14.55 0.0186
2022-05-12 2022-03-31 13F Halliburton COM 406216101 1,450 350 31.82 55 120.00 0.0181
2022-02-07 2021-12-31 13F Halliburton COM 406216101 1,100 0 0.00 25 4.17 0.0083
2021-11-12 2021-09-30 13F Halliburton COM 406216101 1,100 0 0.00 24 -4.00 0.0088
2021-08-10 2021-06-30 13F Halliburton COM 406216101 1,100 0 0.00 25 4.17 0.0091
2021-05-10 2021-03-31 13F Halliburton COM 406216101 1,100 0 0.00 24 14.29 0.0094
2021-02-09 2020-12-31 13F Halliburton COM 406216101 1,100 0 0.00 21 61.54 0.0090
2020-11-12 2020-09-30 13F Halliburton COM 406216101 1,100 600 120.00 13 116.67 0.0066
2020-08-06 2020-06-30 13F Halliburton COM 406216101 500 500 6 0.0033
2020-05-07 2020-03-31 13F Halliburton COM 406216101 0 -30,801 -100.00 0 -100.00
2020-02-05 2019-12-31 13F Halliburton COM 406216101 30,801 -36,850 -54.47 753 -40.94 0.3684
2019-11-12 2019-09-30 13F Halliburton COM 406216101 67,651 -8,349 -10.99 1,275 -26.22 0.6368
2019-07-29 2019-06-30 13F Halliburton COM 406216101 76,000 12,450 19.59 1,728 -7.20 0.8749
2019-05-06 2019-03-31 13F Halliburton COM 406216101 63,550 2,200 3.59 1,862 14.16 0.9775
2019-02-05 2018-12-31 13F Halliburton COM 406216101 61,350 -12,325 -16.73 1,631 -45.38 0.9313
2018-11-02 2018-09-30 13F Halliburton COM 406216101 73,675 -1,200 -1.60 2,986 -11.50 1.5601
2018-08-02 2018-06-30 13F Halliburton COM 406216101 74,875 -500 -0.66 3,374 -4.64 1.8404
2018-05-04 2018-03-31 13F Halliburton COM 406216101 75,375 400 0.53 3,538 -3.44 1.9678
2018-02-09 2017-12-31 13F Halliburton COM 406216101 74,975 -1,600 -2.09 3,664 3.94 1.8756
2018-02-14 2017-09-30 13F/A-1 Halliburton COM 406216101 76,575 100 0.13 3,525 7.93 1.8643
2017-11-13 2017-09-30 13F Halliburton COM 406216101 76,575 100 3,525
2017-08-08 2017-06-30 13F Halliburton COM 406216101 76,475 1,075 1.43 3,266 -11.97 1.8546
2017-05-12 2017-03-31 13F Halliburton COM 406216101 75,400 -50 -0.07 3,710 -9.09 2.1473
2017-01-30 2016-12-31 13F Halliburton COM 406216101 75,450 -50 -0.07 4,081 20.45 2.4525
2016-11-07 2016-09-30 13F Halliburton COM 406216101 75,500 -850 -1.11 3,388 -2.02 2.0755
2016-08-11 2016-06-30 13F/A-1 Halliburton COM 406216101 76,350 2,100 2.83 3,458 30.39 2.2812
2016-08-04 2016-06-30 13F Halliburton COM 406216101 48,200 3,458
2016-05-12 2016-03-31 13F Halliburton COM 406216101 74,250 550 0.75 2,652 5.70 1.8315
2016-05-26 2015-12-31 13F/A-1 Halliburton COM 406216101 73,700 -9,900 -11.84 2,509 -15.09 1.7740
2016-02-08 2015-12-31 13F HALLIBURTON COM 406216101 74,500 2,536
2015-11-05 2015-09-30 13F HALLIBURTON COM 406216101 83,600 2,050 2.51 2,955 -15.86 2.3969
2015-08-11 2015-06-30 13F HALLIBURTON COM 406216101 81,550 1,050 1.30 3,512 -0.57 2.6569
2015-05-05 2015-03-31 13F HALLIBURTON COM 406216101 80,500 5,800 7.76 3,532 20.22 2.4491
2015-02-10 2014-12-31 13F HALLIBURTON COM 406216101 74,700 1,200 1.63 2,938 -38.03 2.0709
2014-11-12 2014-09-30 13F HALLIBURTON COM 406216101 73,500 -400 -0.54 4,741 -9.66 3.6893
2014-07-29 2014-06-30 13F HALLIBURTON COM 406216101 73,900 -3,950 -5.07 5,248 14.46 4.1198
2014-05-13 2014-03-31 13F HALLIBURTON COM 406216101 77,850 7,700 10.98 4,585 28.79 3.6400
2014-02-14 2013-12-31 13F HALLIBURTON COM 406216101 70,150 70,150 3,560 2.9446
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.