Halliburton Company
US ˙ NYSE ˙ US4062161017

SecurityHAL / Halliburton Company
InstitutionSummit Trail Advisors, Llc
Latest Disclosed Ownership50,895 shares
Latest Disclosed Value $ 1,984,385
Summit Trail Advisors, Llc reports 28.58% increase in ownership of HAL / Halliburton Company

On May 12, 2026 - Summit Trail Advisors, Llc filed a 13F-HR form disclosing ownership of 50,895 shares of Halliburton Company (US:HAL) valued at $1,984,396 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 39,581 shares of Halliburton Company. This represents a change in shares of 28.58% during the quarter. The current value of the position is $2,088,222 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)
2026-05-12 2026-03-31 13F HALLIBURTON COM 406216101 50,895 11,314 28.58 1,984 77.46 0.0284
2026-02-17 2025-12-31 13F HALLIBURTON COM 406216101 39,581 -13,798 -25.85 1,119 -14.85 0.0193
2025-11-14 2025-09-30 13F HALLIBURTON COM 406216101 53,379 23,840 80.71 1,313 118.47 0.0181
2025-08-14 2025-06-30 13F HALLIBURTON COM 406216101 29,539 29,539 602 0.0103
2025-01-29 2024-12-31 13F HALLIBURTON COM 406216101 0 -13,480 -100.00 0 -100.00
2024-11-12 2024-09-30 13F HALLIBURTON COM 406216101 13,480 -7,610 -36.08 392 -45.08 0.0097
2024-08-13 2024-06-30 13F Halliburton Co Com COM 406216101 21,090 11,639 123.15 712 91.40 0.0187
2024-04-23 2024-03-31 13F HALLIBURTON COM 406216101 9,451 3,738 65.43 373 80.58 0.0099
2024-02-06 2023-12-31 13F HALLIBURTON COM 406216101 5,713 -1,227 -17.68 207 -26.69 0.0068
2023-10-30 2023-09-30 13F HALLIBURTON COM 406216101 6,940 365 5.55 281 30.09 0.0103
2023-07-25 2023-06-30 13F HALLIBURTON COM 406216101 6,575 6,575 217 0.0082
2018-08-10 2018-06-30 13F HALLIBURTON CO COM EQUITY 406216101 0 -6,011 -100.00 0 -100.00
2018-05-22 2018-03-31 13F/A-1 HALLIBURTON CO COM EQUITY 406216101 6,011 823 15.86 296 4.59 0.0502
2018-05-21 2018-03-31 13F HALLIBURTON CO COM EQUITY 406216101 296,376 291,188 296
2018-02-14 2017-12-31 13F HALLIBURTON CO HOLDING CO FRMLY HALLIBURTON EQUITY 406216101 5,188 5,188 283 0.0357
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.