Halliburton Company
US ˙ NYSE ˙ US4062161017

SecurityHAL / Halliburton Company
InstitutionHeadlands Technologies LLC
Latest Disclosed Ownership19,578 shares
Latest Disclosed Value $ 763,346
Headlands Technologies LLC ownership in HAL / Halliburton Company

On May 13, 2026 - Headlands Technologies LLC filed a 13F-HR form disclosing ownership of 19,578 shares of Halliburton Company (US:HAL) valued at $763,346 USD as of March 31, 2026. The entity filed a previous 13F-HR on November 12, 2025 disclosing 0 shares of Halliburton Company. The current value of the position is $803,285 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)
2026-05-13 2026-03-31 13F HALLIBURTON COM 406216101 19,578 19,578 763 0.0869
2025-11-12 2025-09-30 13F HALLIBURTON COM 406216101 0 -14,353 -100.00 0 -100.00
2025-08-14 2025-06-30 13F HALLIBURTON COM 406216101 14,353 -29,954 -67.61 293 -74.02 0.0350
2025-05-09 2025-03-31 13F HALLIBURTON COM 406216101 44,307 42,091 1,899.41 1,124 1,773.33 0.1281
2025-02-12 2024-12-31 13F HALLIBURTON COM 406216101 2,216 -645 -22.54 60 -27.71 0.0061
2024-11-12 2024-09-30 13F HALLIBURTON COM 406216101 2,861 -21,679 -88.34 83 -89.98 0.0096
2024-08-07 2024-06-30 13F HALLIBURTON COM 406216101 24,540 24,107 5,567.44 829 4,770.59 0.0879
2024-05-07 2024-03-31 13F HALLIBURTON COM 406216101 433 -21,768 -98.05 17 -97.88 0.0041
2024-02-02 2023-12-31 13F HALLIBURTON COM 406216101 22,201 -16,072 -41.99 803 -48.26 0.2393
2023-11-09 2023-09-30 13F HALLIBURTON COM 406216101 38,273 19,188 100.54 1,550 146.42 0.7620
2023-08-03 2023-06-30 13F HALLIBURTON COM 406216101 19,085 8,664 83.14 630 91.19 0.2015
2023-05-01 2023-03-31 13F HALLIBURTON COM 406216101 10,421 10,421 330 0.2192
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.