PrimeEnergy Resources Corporation
US ˙ NasdaqCM ˙ US74158E1047

SecurityPNRG / PrimeEnergy Resources Corporation
InstitutionMorgan Stanley
Latest Disclosed Ownership3,386 shares
Latest Disclosed Value $ 788,430
Morgan Stanley reports 7.56% increase in ownership of PNRG / PrimeEnergy Resources Corporation

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 3,386 shares of PrimeEnergy Resources Corporation (US:PNRG) valued at $788,430 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 3,148 shares of PrimeEnergy Resources Corporation. This represents a change in shares of 7.56% during the quarter. The current value of the position is $621,670 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 PRIMEENERGY RESOURCES COM 74158E104 3,386 238 7.56 788 46.47 0.0000
2026-05-27 2025-12-31 13F/A-1 PRIMEENERGY RESOURCES COM 74158E104 3,148 498 18.79 538 21.72 0.0000
2026-02-13 2025-12-31 13F PRIMEENERGY RESOURCES COM 74158E104 3,148 498 538 0.0000
2026-05-27 2025-09-30 13F/A-1 PRIMEENERGY RESOURCES COM 74158E104 2,650 -2,957 -52.74 443 -46.10 0.0000
2025-11-14 2025-09-30 13F PRIMEENERGY RESOURCES COM 74158E104 2,650 -2,957 443 0.0000
2025-08-15 2025-06-30 13F PRIMEENERGY RESOURCES COM 74158E104 5,607 1,538 37.80 821 -11.54 0.0001
2025-05-15 2025-03-31 13F PRIMEENERGY RESOURCES COM 74158E104 4,069 -280 -6.44 927 -2.83 0.0001
2025-05-15 2024-12-31 13F/A-1 PRIMEENERGY RESOURCES COM 74158E104 4,349 183 4.39 955 66.20 0.0001
2025-02-14 2024-12-31 13F PRIMEENERGY RESOURCES COM 74158E104 4,349 183 955 0.0001
2025-05-14 2024-09-30 13F/A-2 PRIMEENERGY RESOURCES COM 74158E104 4,166 2,941 240.08 574 341.54 0.0000
2025-02-14 2024-09-30 13F/A-1 PRIMEENERGY RESOURCES COM 74158E104 4,166 2,941 574 0.0000
2024-11-14 2024-09-30 13F PRIMEENERGY RESOURCES COM 74158E104 4,166 2,941 574 0.0000
2025-05-14 2024-06-30 13F/A-2 PRIMEENERGY RESOURCES COM 74158E104 1,225 179 17.11 130 25.00 0.0000
2024-10-17 2024-06-30 13F/A-1 PRIMEENERGY RESOURCES COM 74158E104 1,225 179 130 0.0000
2024-08-14 2024-06-30 13F PRIMEENERGY RESOURCES COM 74158E104 1,225 179 130 0.0000
2024-10-17 2024-03-31 13F/A-2 PRIMEENERGY RESOURCES COM 74158E104 1,046 -335 -24.26 105 -28.77 0.0000
2024-08-16 2024-03-31 13F/A-1 PRIMEENERGY RESOURCES COM 74158E104 1,046 -335 105 0.0000
2024-05-15 2024-03-31 13F PRIMEENERGY RESOURCES COM 74158E104 1,046 -335 105 0.0000
2024-08-16 2023-12-31 13F/A-1 PRIMEENERGY RESOURCES COM 74158E104 1,381 907 191.35 147 170.37 0.0000
2024-02-13 2023-12-31 13F PRIMEENERGY RESOURCES COM 74158E104 1,381 907 147 0.0000
2023-11-15 2023-09-30 13F PRIMEENERGY RESOURCES COM 74158E104 474 39 8.97 55 35.00 0.0000
2023-08-14 2023-06-30 13F PRIMEENERGY RESOURCES COM 74158E104 435 -241 -35.65 40 -29.82 0.0000
2023-05-15 2023-03-31 13F PRIMEENERGY RESOURCES COM 74158E104 676 238 54.34 57 50.00 0.0000
2023-02-14 2022-12-31 13F PRIMEENERGY RESOURCES COM 74158E104 438 206 88.79 38 111.11 0.0000
2022-11-14 2022-09-30 13F PRIMEENERGY RESOURCES COM 74158E104 232 -100 -30.12 18 -30.77 0.0000
2022-10-27 2022-06-30 13F/A-1 PRIMEENERGY RESOURCES COM 74158E104 332 -284 -46.10 26 -38.10 0.0000
2022-08-15 2022-06-30 13F PRIMEENERGY RESOURCES COM 74158E104 332 -284 26 0.0000
2022-10-27 2022-03-31 13F/A-1 PRIMEENERGY RESOURCES COM 74158E104 616 164 36.28 42 31.25 0.0000
2022-05-13 2022-03-31 13F PRIMEENERGY RESOURCES COM 74158E104 616 164 42 0.0000
2022-02-14 2021-12-31 13F PRIMEENERGY RESOURCES COM 74158E104 452 448 11,200.00 32 0.0000
2021-11-15 2021-09-30 13F PRIMEENERGY RESOURCES COM 74158E104 4 -17 -80.95 0 -100.00
2021-08-23 2021-06-30 13F/A-1 PRIMEENERGY RESOURCES COM 74158E104 21 19 950.00 1 0.0000
2021-08-16 2021-06-30 13F PRIMEENERGY RESOURCES COM 74158E104 21 19 1 0.0000
2021-05-17 2021-03-31 13F PRIMEENERGY RESOURCES COM 74158E104 2 -381 -99.48 0 -100.00
2021-02-16 2020-12-31 13F PRIMEENERGY RESOURCES COM 74158E104 383 335 697.92 17 466.67 0.0000
2020-11-13 2020-09-30 13F PRIMEENERGY RESOURCES COM 74158E104 48 -112 -70.00 3 -72.73 0.0000
2020-08-14 2020-06-30 13F PRIMEENERGY RESOURCES COM 74158E104 160 121 310.26 11 266.67 0.0000
2020-05-26 2020-03-31 13F/A-1 PRIMEENERGY RESOURCES COM 74158E104 39 -650 -94.34 3 -97.12 0.0000
2020-05-15 2020-03-31 13F PRIMEENERGY RESOURCES COM 74158E104 39 -650 3 0.2305
2020-02-14 2019-12-31 13F PRIMEENERGY RESOURCES COM 74158E104 689 543 371.92 104 511.76 0.0000
2019-11-14 2019-09-30 13F PRIMEENERGY RESOURCES COM 74158E104 146 140 2,333.33 17 1,600.00 0.0000
2019-08-14 2019-06-30 13F PRIMEENERGY RESOURCES COM 74158E104 6 -32 -84.21 1 -80.00 0.0000
2019-05-15 2019-03-31 13F PRIMEENERGY RESOURCES COM 74158E104 38 37 3,700.00 5 400.00 0.0000
2019-02-14 2018-12-31 13F PRIMEENERGY COM 74158E104 1 -100 -99.01 0 -100.00
2019-04-23 2018-09-30 13F/A-2 PRIMEENERGY COM 74158E104 101 0 0.00 7 0.00 0.0000
2018-11-20 2018-09-30 13F/A-1 PRIMEENERGY COM 74158E104 101 0 7 0.0000
2018-11-14 2018-09-30 13F PRIMEENERGY COM 74158E104 101 0 7
2019-04-23 2018-06-30 13F/A-1 PRIMEENERGY COM 74158E104 101 -4,400 -97.76 7 -96.89 0.0000
2018-08-14 2018-06-30 13F PRIMEENERGY COM 74158E104 101 -4,400 7
2019-04-23 2018-03-31 13F/A-1 PRIMEENERGY COM 74158E104 4,501 -26 -0.57 225 -3.43 0.0001
2018-05-14 2018-03-31 13F PRIMEENERGY COM 74158E104 4,501 -26 225
2019-04-23 2017-12-31 13F/A-1 PRIMEENERGY COM 74158E104 4,527 4,485 10,678.57 233 11,550.00 0.0001
2018-02-14 2017-12-31 13F PRIMEENERGY COM 74158E104 4,527 4,485 233
2016-11-10 2016-09-30 13F PRIMEENERGY COM 74158E104 42 0 0.00 2 -33.33 0.0000
2016-08-12 2016-06-30 13F PRIMEENERGY COM 74158E104 42 -289 -87.31 3 -62.50 0.0000
2016-05-12 2016-03-31 13F PRIMEENERGY COM 74158E104 331 0 0.00 8 -52.94 0.0000
2016-02-09 2015-12-31 13F PRIMEENERGY COM 74158E104 331 -202 -37.90 17 -51.43 0.0000
2016-02-08 2015-09-30 13F/A-1 PRIMEENERGY COM 74158E104 533 200 60.06 35 94.44 0.0000
2015-11-09 2015-09-30 13F PRIMEENERGY COM 74158E104 533 35
2015-08-12 2015-06-30 13F PRIMEENERGY COM 74158E104 333 2 0.60 18 5.88 0.0000
2015-05-14 2015-03-31 13F PRIMEENERGY COM 74158E104 331 -269 -44.83 17 -61.36 0.0000
2015-02-13 2014-12-31 13F PRIMEENERGY COM 74158E104 600 596 14,900.00 44 158.82 0.0000
2014-12-16 2014-09-30 13F/A-1 PRIMEENERGY COM 74158E104 4 0 0.00 0 -100.00 0.0000
2014-11-14 2014-09-30 13F PRIMEENERGY COM 74158E104 4 0
2014-05-13 2014-03-31 13F PRIMEENERGY COM 74158E104 4 4 0 0.0000
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.