Halliburton Company
US ˙ NYSE ˙ US4062161017

SecurityHAL / Halliburton Company
InstitutionMAI Capital Management
Latest Disclosed Ownership44,257 shares
Latest Disclosed Value $ 1,725,586
MAI Capital Management reports 57.07% increase in ownership of HAL / Halliburton Company

On May 15, 2026 - MAI Capital Management filed a 13F-HR form disclosing ownership of 44,257 shares of Halliburton Company (US:HAL) valued at $1,725,580 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 28,177 shares of Halliburton Company. This represents a change in shares of 57.07% during the quarter. The current value of the position is $1,815,865 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)
2026-05-15 2026-03-31 13F HALLIBURTON COM 406216101 44,257 16,080 57.07 1,726 116.71 0.0097
2026-02-13 2025-12-31 13F HALLIBURTON COM 406216101 28,177 7,490 36.21 796 56.69 0.0046
2025-11-10 2025-09-30 13F HALLIBURTON COM 406216101 20,687 -4,116 -16.59 509 0.59 0.0032
2025-08-12 2025-06-30 13F HALLIBURTON COM 406216101 24,803 -32,838 -56.97 505 -65.46 0.0035
2025-05-15 2025-03-31 13F HALLIBURTON COM 406216101 57,641 13,480 30.52 1,462 21.83 0.0110
2025-02-14 2024-12-31 13F HALLIBURTON COM 406216101 44,161 44,161 1,201 0.0089
2023-05-10 2023-03-31 13F Halliburton CS 406216101 0 -5,241 -100.00 0 -100.00
2023-02-09 2022-12-31 13F Halliburton CS 406216101 5,241 5,241 206 0.0035
2019-08-15 2019-06-30 13F Halliburton CS 406216101 0 -7,806 -100.00 0 -100.00
2019-04-29 2019-03-31 13F Halliburton CS 406216101 7,806 -525 -6.30 229 3.62 0.0117
2019-01-30 2018-12-31 13F Halliburton CS 406216101 8,331 517 6.62 221 -30.28 0.0129
2018-10-12 2018-09-30 13F Halliburton CS 406216101 7,814 -320 -3.93 317 -13.62 0.0162
2018-08-16 2018-06-30 13F Halliburton CS 406216101 8,134 534 7.03 367 2.80 0.0198
2018-04-17 2018-03-31 13F Halliburton CS 406216101 7,600 -400 -5.00 357 -8.70 0.0203
2018-01-30 2017-12-31 13F Halliburton CS 406216101 8,000 -50 -0.62 391 5.39 0.0222
2017-10-12 2017-09-30 13F Halliburton CS 406216101 8,050 -100 -1.23 371 6.61 0.0225
2017-08-07 2017-06-30 13F Halliburton CS 406216101 8,150 135 1.68 348 -11.68 0.0224
2017-05-11 2017-03-31 13F Halliburton CS 406216101 8,015 3,160 65.09 394 49.81 0.0265
2017-01-31 2016-12-31 13F Halliburton CS 406216101 4,855 -250 -4.90 263 14.85 0.0191
2016-10-18 2016-09-30 13F Halliburton CS 406216101 5,105 -840 -14.13 229 -14.87 0.0173
2016-07-14 2016-06-30 13F Halliburton CS 406216101 5,945 0 0.00 269 26.89 0.0207
2016-04-08 2016-03-31 13F Halliburton CS 406216101 5,945 -250 -4.04 212 0.47 0.0162
2016-01-27 2015-12-31 13F Halliburton CS 406216101 6,195 6,195 0.00 211 0.0161
2015-10-28 2015-09-30 13F Halliburton CS 406216101 0 -5,295 -100.00 0 -100.00
2015-07-09 2015-06-30 13F Halliburton CS 406216101 5,295 0 0.00 228 -1.72 0.0150
2015-04-30 2015-03-31 13F Halliburton CS 406216101 5,295 -458 -7.96 232 2.65 0.0155
2015-01-20 2014-12-31 13F Halliburton CS 406216101 5,753 0 0.00 226 -39.08 0.0158
2014-10-16 2014-09-30 13F/A-1 Halliburton CS 406216101 5,753 458 8.65 371 -1.33 0.0357
2014-10-16 2014-09-30 13F Halliburton COM 406216101 5,295 376
2014-07-28 2014-06-30 13F Halliburton COM 406216101 5,295 200 3.93 376 25.33 0.0361
2014-04-28 2014-03-31 13F Halliburton COM 406216101 5,095 405 8.64 300 26.05 0.0302
2014-02-06 2013-12-31 13F Halliburton COM 406216101 4,690 0 0.00 238 5.31 0.0252
2013-10-28 2013-09-30 13F Halliburton COM 406216101 4,690 4,690 226 0.0294
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.