Halliburton Company
MX ˙ BMV ˙ US4062161017
SecurityMX:HAL / Halliburton Company
InstitutionKorea Investment CORP
Latest Disclosed Ownership595,350 shares
Latest Disclosed Value $ 23,212,697
Korea Investment CORP reports 5.61% decrease in ownership of HAL / Halliburton Company

On May 13, 2026 - Korea Investment CORP filed a 13F-HR form disclosing ownership of 595,350 shares of Halliburton Company (MX:HAL) valued at $23,212,697 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 630,738 shares of Halliburton Company. This represents a change in shares of -5.61% during the quarter.

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)
2026-05-13 2026-03-31 13F HALLIBURTON COM 406216101 595,350 -35,388 -5.61 23,213 30.23 0.0481
2026-02-13 2025-12-31 13F HALLIBURTON COM 406216101 630,738 -22,673 -3.47 17,825 10.89 0.0351
2025-11-13 2025-09-30 13F HALLIBURTON COM 406216101 653,411 -204,498 -23.84 16,074 -8.07 0.0331
2025-08-13 2025-06-30 13F HALLIBURTON COM 406216101 857,909 201,758 30.75 17,484 5.03 0.0389
2025-05-14 2025-03-31 13F HALLIBURTON COM 406216101 656,151 -132,788 -16.83 16,647 -22.40 0.0403
2025-02-12 2024-12-31 13F HALLIBURTON COM 406216101 788,939 378,917 92.41 21,451 80.09 0.0509
2024-11-13 2024-09-30 13F HALLIBURTON COM 406216101 410,022 -5,989 -1.44 11,911 -15.24 0.0283
2024-08-13 2024-06-30 13F HALLIBURTON COM 406216101 416,011 -76,994 -15.62 14,053 -27.69 0.0354
2024-05-14 2024-03-31 13F HALLIBURTON COM 406216101 493,005 34,450 7.51 19,434 17.24 0.0493
2024-02-13 2023-12-31 13F HALLIBURTON COM 406216101 458,555 -71,564 -13.50 16,577 -22.79 0.0435
2023-11-13 2023-09-30 13F HALLIBURTON COM 406216101 530,119 -891 -0.17 21,470 22.55 0.0632
2023-08-11 2023-06-30 13F HALLIBURTON COM 406216101 531,010 -10,242 -1.89 17,518 2.29 0.0492
2023-05-12 2023-03-31 13F HALLIBURTON COM 406216101 541,252 -268,463 -33.16 17,125 -46.25 0.0499
2023-02-13 2022-12-31 13F HALLIBURTON COM 406216101 809,715 91,728 12.78 31,862 80.25 0.1001
2022-11-10 2022-09-30 13F HALLIBURTON COM 406216101 717,987 135,636 23.29 17,677 -3.21 0.0544
2022-08-12 2022-06-30 13F HALLIBURTON COM 406216101 582,351 106,951 22.50 18,263 1.44 0.0558
2022-05-13 2022-03-31 13F HALLIBURTON COM 406216101 475,400 -442,700 -48.22 18,003 -14.26 0.0445
2022-02-09 2021-12-31 13F HALLIBURTON COM 406216101 918,100 389,800 73.78 20,997 83.83 0.0546
2021-11-12 2021-09-30 13F HALLIBURTON COM 406216101 528,300 -357,100 -40.33 11,422 -44.20 0.0341
2021-08-12 2021-06-30 13F HALLIBURTON COM 406216101 885,400 -34,900 -3.79 20,470 3.65 0.0586
2021-05-13 2021-03-31 13F HALLIBURTON COM 406216101 920,300 526,900 133.93 19,750 165.64 0.0623
2021-02-10 2020-12-31 13F HALLIBURTON COM 406216101 393,400 -574,500 -59.36 7,435 -36.25 0.0223
2020-11-12 2020-09-30 13F HALLIBURTON COM 406216101 967,900 79,600 8.96 11,663 1.15 0.0412
2020-08-12 2020-06-30 13F HALLIBURTON COM 406216101 888,300 349,700 64.93 11,530 212.55 0.0424
2020-05-14 2020-03-31 13F HALLIBURTON COM 406216101 538,600 -151,700 -21.98 3,689 -78.16 0.0162
2020-02-11 2019-12-31 13F HALLIBURTON COM 406216101 690,300 -139,900 -16.85 16,892 7.94 0.0616
2019-11-12 2019-09-30 13F HALLIBURTON COM 406216101 830,200 -83,400 -9.13 15,649 -24.67 0.0662
2019-08-12 2019-06-30 13F HALLIBURTON COM 406216101 913,600 231,200 33.88 20,775 3.91 0.0893
2019-05-15 2019-03-31 13F HALLIBURTON COM 406216101 682,400 -666,795 -49.42 19,994 -44.25 0.0900
2019-02-13 2018-12-31 13F HALLIBURTON COM 406216101 1,349,195 109,300 8.82 35,862 -28.64 0.1949
2018-11-13 2018-09-30 13F HALLIBURTON COM 406216101 1,239,895 -78,894 -5.98 50,253 -15.43 0.2317
2018-08-13 2018-06-30 13F HALLIBURTON COM 406216101 1,318,789 -27,000 -2.01 59,425 -5.93 0.2708
2018-05-09 2018-03-31 13F HALLIBURTON COM 406216101 1,345,789 194,500 16.89 63,171 12.28 0.2940
2018-02-12 2017-12-31 13F HALLIBURTON COM 406216101 1,151,289 78,938 7.36 56,263 13.99 0.2561
2017-10-25 2017-09-30 13F HALLIBURTON COM 406216101 1,072,351 4,400 0.41 49,360 8.22 0.2280
2017-07-31 2017-06-30 13F HALLIBURTON COM 406216101 1,067,951 4,817 0.45 45,612 -12.82 0.2126
2017-04-25 2017-03-31 13F HALLIBURTON COM 406216101 1,063,134 -165,813 -13.49 52,317 -21.30 0.2595
2017-02-13 2016-12-31 13F HALLIBURTON COM 406216101 1,228,947 155,416 14.48 66,474 37.97 0.3195
2016-11-09 2016-09-30 13F HALLIBURTON COM 406216101 1,073,531 40,462 3.92 48,180 2.98 0.2568
2016-08-12 2016-06-30 13F HALLIBURTON COM 406216101 1,033,069 217,700 26.70 46,788 60.65 0.2786
2016-05-12 2016-03-31 13F HALLIBURTON COM 406216101 815,369 -54,100 -6.22 29,124 -1.59 0.2130
2016-02-01 2015-12-31 13F HALLIBURTON COM 406216101 869,469 93,000 11.98 29,596 7.83 0.2062
2015-11-12 2015-09-30 13F HALLIBURTON COM 406216101 776,469 184,069 31.07 27,448 7.58 0.2186
2015-08-13 2015-06-30 13F HALLIBURTON COM 406216101 592,400 -171,700 -22.47 25,515 -23.90 0.2175
2015-05-11 2015-03-31 13F HALLIBURTON COM 406216101 764,100 1,000 0.13 33,529 11.71 0.2612
2015-02-12 2014-12-31 13F HALLIBURTON COM 406216101 763,100 10,500 1.40 30,013 -38.18 0.2463
2014-11-14 2014-09-30 13F HALLIBURTON COM 406216101 752,600 14,600 1.98 48,550 -7.36 0.3961
2014-08-14 2014-06-30 13F HALLIBURTON COM 406216101 738,000 309,000 72.03 52,405 107.43 0.4362
2014-05-14 2014-03-31 13F HALLIBURTON COM 406216101 429,000 91,000 26.92 25,264 47.28 0.2237
2014-02-06 2013-12-31 13F HALLIBURTON COM 406216101 338,000 32,000 10.46 17,154 16.42 0.1622
2013-11-07 2013-09-30 13F/A-1 HALLIBURTON COM 406216101 306,000 -7,000 -2.24 14,734 12.84 0.1565
2013-11-05 2013-09-30 13F HALLIBURTON COM 406216101 207,300 9,981
2013-08-08 2013-06-30 13F HALLIBURTON COM 406216101 313,000 313,000 13,058 0.1565
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.