Halliburton Company
US ˙ NYSE ˙ US4062161017

SecurityHAL / Halliburton Company
InstitutionHolocene Advisors, LP
Latest Disclosed Ownership4,008,056 shares
Latest Disclosed Value $ 156,274,103
Holocene Advisors, LP ownership in HAL / Halliburton Company

On May 15, 2026 - Holocene Advisors, LP filed a 13F-HR form disclosing ownership of 4,008,056 shares of Halliburton Company (US:HAL) valued at $156,274,103 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 0 shares of Halliburton Company. The current value of the position is $164,450,538 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 4,008,056 4,008,056 156,274 0.3769
2026-02-17 2025-12-31 13F HALLIBURTON COM 406216101 0 -5,988,407 -100.00 0 -100.00
2025-11-14 2025-09-30 13F HALLIBURTON COM 406216101 5,988,407 5,988,407 147,315 0.3357
2025-02-14 2024-12-31 13F HALLIBURTON COM 406216101 0 -107,222 -100.00 0 -100.00
2024-11-14 2024-09-30 13F HALLIBURTON COM 406216101 107,222 107,222 3,115 0.0126
2024-08-14 2024-06-30 13F HALLIBURTON COM 406216101 0 -2,210,975 -100.00 0 -100.00
2024-05-15 2024-03-31 13F HALLIBURTON COM 406216101 2,210,975 765,364 52.94 87,157 66.78 0.3201
2024-02-14 2023-12-31 13F HALLIBURTON COM 406216101 1,445,611 1,445,611 52,259 0.2037
2023-11-14 2023-09-30 13F HALLIBURTON COM 406216101 0 -578,204 -100.00 0 -100.00
2023-08-14 2023-06-30 13F HALLIBURTON COM 406216101 578,204 578,204 19,075 0.0814
2023-05-15 2023-03-31 13F HALLIBURTON COM 406216101 0 -858,121 -100.00 0 -100.00
2023-02-14 2022-12-31 13F HALLIBURTON COM 406216101 858,121 858,121 33,767 0.2060
2022-11-14 2022-09-30 13F HALLIBURTON COM 406216101 0 -4,211,604 -100.00 0 -100.00
2022-08-15 2022-06-30 13F HALLIBURTON COM 406216101 4,211,604 1,205,534 40.10 132,076 16.02 0.7977
2022-05-16 2022-03-31 13F HALLIBURTON COM 406216101 3,006,070 -1,013,092 -25.21 113,840 23.85 0.5932
2022-02-14 2021-12-31 13F HALLIBURTON COM 406216101 4,019,162 -232,523 -5.47 91,918 0.00 0.4784
2021-11-15 2021-09-30 13F HALLIBURTON COM 406216101 4,251,685 -552,232 -11.50 91,921 -17.24 0.4995
2021-08-16 2021-06-30 13F HALLIBURTON COM 406216101 4,803,917 3,090,982 180.45 111,067 202.14 0.6272
2021-05-17 2021-03-31 13F HALLIBURTON COM 406216101 1,712,935 1,712,935 36,760 0.2306
2019-11-14 2019-09-30 13F HALLIBURTON COM 406216101 0 -68,313 -100.00 0 -100.00
2019-08-14 2019-06-30 13F HALLIBURTON COM 406216101 68,313 68,313 1,553 0.0198
2019-02-14 2018-12-31 13F HALLIBURTON COM 406216101 0 -26,194 -100.00 0 -100.00
2018-11-14 2018-09-30 13F HALLIBURTON COM 406216101 26,194 26,194 1,062 0.0171
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.