Halliburton Company
US ˙ NYSE ˙ US4062161017

SecurityHAL / Halliburton Company
InstitutionRosenberg Matthew Hamilton
Latest Disclosed Ownership872 shares
Latest Disclosed Value $ 33,999
Rosenberg Matthew Hamilton ownership in HAL / Halliburton Company

On April 6, 2026 - Rosenberg Matthew Hamilton filed a 13F-HR form disclosing ownership of 872 shares of Halliburton Company (US:HAL) valued at $33,999 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 5, 2026 disclosing 872 shares of Halliburton Company. This represents a change in shares of 0.00% during the quarter. The current value of the position is $35,778 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)
2026-04-06 2026-03-31 13F HALLIBURTON CO COM Stock 406216101 872 0 0.00 34 37.50 0.0070
2026-01-05 2025-12-31 13F HALLIBURTON CO COM Stock 406216101 872 0 0.00 25 14.29 0.0051
2025-11-10 2025-09-30 13F HALLIBURTON CO COM Stock 406216101 872 0 0.00 21 23.53 0.0046
2025-07-28 2025-06-30 13F HALLIBURTON CO COM Stock 406216101 872 0 0.00 18 -22.73 0.0041
2025-04-28 2025-03-31 13F HALLIBURTON CO COM Stock 406216101 872 0 0.00 22 -4.35 0.0055
2025-01-14 2024-12-31 13F HALLIBURTON CO COM Stock 406216101 872 -913 -51.15 24 -54.90 0.0062
2024-10-28 2024-09-30 13F HALLIBURTON CO COM Stock 406216101 1,785 209 13.26 52 -1.92 0.0136
2024-07-26 2024-06-30 13F HALLIBURTON CO COM Stock 406216101 1,576 -209 -11.71 53 -26.76 0.0156
2024-04-22 2024-03-31 13F HALLIBURTON CO COM Stock 406216101 1,785 0 0.00 71 10.94 0.0206
2024-01-16 2023-12-31 13F HALLIBURTON CO COM Stock 406216101 1,785 209 13.26 65 1.59 0.0198
2023-10-11 2023-09-30 13F HALLIBURTON CO COM Stock 406216101 1,576 0 0.00 64 23.53 0.0213
2023-07-26 2023-06-30 13F HALLIBURTON CO COM Stock 406216101 1,576 0 0.00 52 4.08 0.0176
2023-04-17 2023-03-31 13F HALLIBURTON CO COM Stock 406216101 1,576 0 0.00 50 -20.97 0.0161
2023-01-19 2022-12-31 13F HALLIBURTON CO COM Stock 406216101 1,576 0 0.00 62 58.97 0.0210
2022-10-21 2022-09-30 13F HALLIBURTON CO COM Stock 406216101 1,576 0 0.00 39 -22.00 0.0151
2022-07-15 2022-06-30 13F HALLIBURTON CO COM Stock 406216101 1,576 0 0.00 50 -16.67 0.0189
2022-04-14 2022-03-31 13F HALLIBURTON CO COM Stock 406216101 1,576 -3,000 -65.56 60 -42.86 0.0210
2022-01-20 2021-12-31 13F HALLIBURTON COM 406216101 4,576 591 14.83 105 22.09 0.0374
2021-10-12 2021-09-30 13F HALLIBURTON COM 406216101 3,985 0 0.00 86 -6.52 0.0340
2021-07-26 2021-06-30 13F HALLIBURTON COM 406216101 3,985 0 0.00 92 6.98 0.0479
2021-04-30 2021-03-31 13F HALLIBURTON COM 406216101 3,985 0 0.00 86 14.67 0.0491
2021-02-03 2020-12-31 13F HALLIBURTON COM 406216101 3,985 3,000 304.57 75 525.00 0.0468
2020-10-16 2020-09-30 13F HALLIBURTON COM 406216101 985 0 0.00 12 -7.69 0.0088
2020-08-04 2020-06-30 13F HALLIBURTON COM 406216101 985 985 13 0.0104
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.