Halliburton Company
US ˙ NYSE ˙ US4062161017

SecurityHAL / Halliburton Company
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership9,502,988 shares
Latest Disclosed Value $ 370,555,891
Dimensional Fund Advisors Lp reports 4.03% increase in ownership of HAL / Halliburton Company

On May 7, 2026 - Dimensional Fund Advisors Lp filed a 13F-HR form disclosing ownership of 9,502,988 shares of Halliburton Company (US:HAL) valued at $370,521,502 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 9,135,287 shares of Halliburton Company. This represents a change in shares of 4.03% during the quarter. The current value of the position is $389,907,598 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)
2026-05-07 2026-03-31 13F HALLIBURTON COM 406216101 9,502,988 367,701 4.03 370,556 43.52 0.0166
2026-02-12 2025-12-31 13F HALLIBURTON COM 406216101 9,135,287 770,764 9.21 258,189 25.46 0.0542
2025-11-12 2025-09-30 13F HALLIBURTON COM 406216101 8,364,523 -377,960 -4.32 205,789 15.49 0.0442
2025-08-12 2025-06-30 13F HALLIBURTON COM 406216101 8,742,483 -684,364 -7.26 178,190 -25.48 0.0413
2025-05-13 2025-03-31 13F HALLIBURTON COM 406216101 9,426,847 -62,087 -0.65 239,131 -7.31 0.0594
2025-02-13 2024-12-31 13F HALLIBURTON COM 406216101 9,488,934 -1,082,657 -10.24 257,994 -15.99 0.0620
2024-11-07 2024-09-30 13F HALLIBURTON COM 406216101 10,571,591 484,476 4.80 307,080 -9.88 0.0745
2024-08-09 2024-06-30 13F HALLIBURTON COM 406216101 10,087,115 1,681,620 20.01 340,752 2.84 0.0890
2024-05-10 2024-03-31 13F HALLIBURTON COM 406216101 8,405,495 526,684 6.68 331,345 16.33 0.0897
2024-02-07 2023-12-31 13F HALLIBURTON COM 406216101 7,878,811 1,568,485 24.86 284,822 11.43 0.0832
2023-11-09 2023-09-30 13F HALLIBURTON COM 406216101 6,310,326 -725,966 -10.32 255,615 10.11 0.0838
2023-08-09 2023-06-30 13F HALLIBURTON COM 406216101 7,036,292 388,109 5.84 232,140 10.36 0.0740
2023-05-12 2023-03-31 13F HALLIBURTON COM 406216101 6,648,183 64,326 0.98 210,340 81,111.97 0.0709
2023-02-09 2022-12-31 13F HALLIBURTON COM 406216101 6,583,857 -984,770 -13.01 259 -99.86 0.0765
2022-11-10 2022-09-30 13F HALLIBURTON COM 406216101 7,568,627 123,403 1.66 186,348 -20.20 0.0715
2022-08-12 2022-06-30 13F HALLIBURTON COM 406216101 7,445,224 -340,115 -4.37 233,510 -20.81 0.0838
2022-05-13 2022-03-31 13F HALLIBURTON COM 406216101 7,785,339 -275,125 -3.41 294,882 59.98 0.0908
2022-02-09 2021-12-31 13F HALLIBURTON COM 406216101 8,060,464 -258,345 -3.11 184,325 2.45 0.0557
2021-11-12 2021-09-30 13F HALLIBURTON COM 406216101 8,318,809 -430,814 -4.92 179,917 -11.04 0.0580
2021-08-12 2021-06-30 13F HALLIBURTON COM 406216101 8,749,623 -764,300 -8.03 202,240 -0.95 0.0640
2021-05-14 2021-03-31 13F HALLIBURTON COM 406216101 9,513,923 521,458 5.80 204,179 20.11 0.0675
2021-03-08 2020-12-31 13F/A-2 HALLIBURTON COM 406216101 8,992,465 1,024,917 12.86 169,991 77.08 0.0614
2021-02-11 2020-12-31 13F HALLIBURTON COM 406216101 8,992,465 1,024,917 169,991 61,391.7137
2020-11-12 2020-09-30 13F HALLIBURTON COM 406216101 7,967,548 1,247,509 18.56 95,998 10.15 0.0407
2020-08-13 2020-06-30 13F HALLIBURTON COM 406216101 6,720,039 -1,404,592 -17.29 87,155 56.76 0.0383
2020-05-14 2020-03-31 13F HALLIBURTON COM 406216101 8,124,631 3,973,744 95.73 55,599 -45.26 0.0290
2020-02-14 2019-12-31 13F HALLIBURTON COM 406216101 4,150,887 964,394 30.27 101,576 69.12 0.0370
2019-11-12 2019-09-30 13F HALLIBURTON COM 406216101 3,186,493 118,060 3.85 60,062 -13.93 0.0233
2019-08-13 2019-06-30 13F HALLIBURTON COM 406216101 3,068,433 465,200 17.87 69,779 -8.52 0.0271
2019-08-12 2019-03-31 13F/A-2 HALLIBURTON COM 406216101 2,603,233 591,804 29.42 76,275 42.66 0.0304
2019-05-10 2019-03-31 13F HALLIBURTON COM 406216101 2,603,233 591,804 76,275
2019-02-26 2018-12-31 13F/A-1 HALLIBURTON COM 406216101 2,011,429 57,422 2.94 53,466 -32.49 0.0242
2019-02-13 2018-12-31 13F HALLIBURTON COM 406216101 2,011,429 57,422 53,466
2018-11-13 2018-09-30 13F HALLIBURTON COM 406216101 1,954,007 81,529 4.35 79,196 -6.15 0.0301
2018-08-10 2018-06-30 13F HALLIBURTON COM 406216101 1,872,478 73,864 4.11 84,382 -0.05 0.0336
2018-05-11 2018-03-31 13F HALLIBURTON COM 406216101 1,798,614 139,239 8.39 84,427 4.11 0.0352
2018-02-12 2017-12-31 13F HALLIBURTON COM 406216101 1,659,375 -9,072 -0.54 81,092 5.59 0.0336
2017-11-13 2017-09-30 13F HALLIBURTON COM 406216101 1,668,447 -10,761 -0.64 76,796 7.08 0.0336
2017-08-11 2017-06-30 13F HALLIBURTON COM 406216101 1,679,208 -383,789 -18.60 71,718 -29.35 0.0331
2017-05-12 2017-03-31 13F HALLIBURTON COM 406216101 2,062,997 -178,329 -7.96 101,518 -16.26 0.0485
2017-02-09 2016-12-31 13F HALLIBURTON COM 406216101 2,241,326 -472,368 -17.41 121,234 -0.45 0.0606
2016-11-10 2016-09-30 13F HALLIBURTON COM 406216101 2,713,694 -121,856 -4.30 121,785 -5.16 0.0658
2016-08-09 2016-06-30 13F HALLIBURTON COM 406216101 2,835,550 -41,299 -1.44 128,416 24.96 0.0739
2016-05-13 2016-03-31 13F HALLIBURTON COM 406216101 2,876,849 -57,154 -1.95 102,764 2.89 0.0615
2016-02-10 2015-12-31 13F HALLIBURTON COM 406216101 2,934,003 435,336 17.42 99,874 13.08 0.0622
2015-11-13 2015-09-30 13F HALLIBURTON COM 406216101 2,498,667 406,494 19.43 88,325 -1.98 0.0580
2015-08-14 2015-06-30 13F HALLIBURTON COM 406216101 2,092,173 491,599 30.71 90,109 28.31 0.0552
2015-05-14 2015-03-31 13F HALLIBURTON COM 406216101 1,600,574 -25,840 -1.59 70,226 9.78 0.0443
2015-02-06 2014-12-31 13F HALLIBURTON COM 406216101 1,626,414 298,217 22.45 63,972 -25.35 0.0420
2014-11-13 2014-09-30 13F HALLIBURTON COM 406216101 1,328,197 49,781 3.89 85,701 -5.58 0.0607
2014-08-08 2014-06-30 13F HALLIBURTON COM 406216101 1,278,416 114,968 9.88 90,770 32.50 0.0631
2014-05-14 2014-03-31 13F HALLIBURTON COM 406216101 1,163,448 146,389 14.39 68,506 32.74 0.0512
2014-02-12 2013-12-31 13F HALLIBURTON COM 406216101 1,017,059 17,761 1.78 51,610 7.27 0.0402
2013-11-13 2013-09-30 13F HALLIBURTON COM 406216101 999,298 -13,262 -1.31 48,113 13.88 0.0416
2013-08-15 2013-06-30 13F HALLIBURTON COM 406216101 1,012,560 1,012,560 42,248 0.0398
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.