Diamondback Energy, Inc.
US ˙ NasdaqGS ˙ US25278X1090

SecurityFANG / Diamondback Energy, Inc.
InstitutionCwm, Llc
Latest Disclosed Ownership9,156 shares
Latest Disclosed Value $ 1,811,024
Cwm, Llc reports 2.17% decrease in ownership of FANG / Diamondback Energy, Inc.

On May 14, 2026 - Cwm, Llc filed a 13F-HR form disclosing ownership of 9,156 shares of Diamondback Energy, Inc. (US:FANG) valued at $1,810,965 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 9,359 shares of Diamondback Energy, Inc.. This represents a change in shares of -2.17% during the quarter. The current value of the position is $1,928,162 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)
2026-05-14 2026-03-31 13F DIAMONDBACK ENERGY COM 25278X109 9,156 -203 -2.17 1,811 181,000.00 0.0047
2026-01-26 2025-12-31 13F DIAMONDBACK ENERGY COM 25278X109 9,359 -166 -1.74 1 0.00 0.0038
2025-10-15 2025-09-30 13F DIAMONDBACK ENERGY COM 25278X109 9,525 -2,645 -21.73 1 0.00 0.0041
2025-07-25 2025-06-30 13F DIAMONDBACK ENERGY COM 25278X109 12,170 3,945 47.96 2 0.00 0.0059
2025-05-01 2025-03-31 13F DIAMONDBACK ENERGY COM 25278X109 8,225 -5,779 -41.27 1 -50.00 0.0052
2025-02-04 2024-12-31 13F DIAMONDBACK ENERGY COM 25278X109 14,004 -843 -5.68 2 0.00 0.0095
2024-10-08 2024-09-30 13F DIAMONDBACK ENERGY COM 25278X109 14,847 -2,039 -12.08 3 -33.33 0.0110
2024-07-10 2024-06-30 13F DIAMONDBACK ENERGY COM 25278X109 16,886 -1,962 -10.41 3 0.00 0.0159
2024-04-05 2024-03-31 13F DIAMONDBACK ENERGY COM 25278X109 18,848 -869 -4.41 4 0.00 0.0182
2024-02-01 2023-12-31 13F DIAMONDBACK ENERGY COM 25278X109 19,717 354 1.83 3 50.00 0.0164
2023-10-11 2023-09-30 13F DIAMONDBACK ENERGY COM 25278X109 19,363 13,733 243.93 3 0.0184
2023-08-03 2023-06-30 13F DIAMONDBACK ENERGY COM 25278X109 5,630 282 5.27 1 0.0046
2023-05-01 2023-03-31 13F DIAMONDBACK ENERGY COM 25278X109 5,348 -1,435 -21.16 1 0.0049
2023-02-01 2022-12-31 13F DIAMONDBACK ENERGY COM 25278X109 6,783 2,473 57.38 1 -100.00 0.0068
2022-10-27 2022-09-30 13F DIAMONDBACK ENERGY COM 25278X109 4,310 -1,723 -28.56 519 -29.00 0.0041
2022-07-28 2022-06-30 13F DIAMONDBACK ENERGY COM 25278X109 6,033 1,768 41.45 731 24.96 0.0057
2022-04-21 2022-03-31 13F DIAMONDBACK ENERGY COM 25278X109 4,265 589 16.02 585 47.73 0.0041
2022-01-31 2021-12-31 13F DIAMONDBACK ENERGY COM 25278X109 3,676 33 0.91 396 15.79 0.0028
2021-09-15 2021-06-30 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 3,643 0 0.00 342 0.00 0.0027
2021-07-29 2021-06-30 13F DIAMONDBACK ENERGY COM 25278X109 3,643 0 342 0.0027
2021-09-15 2021-03-31 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 3,643 0 0.00 342 0.00 0.0027
2021-04-27 2021-03-31 13F DIAMONDBACK ENERGY COM 25278X109 4,327 684 318 0.0028
2021-09-15 2020-12-31 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 3,643 0 0.00 342 0.00 0.0027
2021-01-27 2020-12-31 13F DIAMONDBACK ENERGY COM 25278X109 4,675 1,032 226 0.0021
2021-09-15 2020-09-30 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 3,643 0 0.00 342 0.00 0.0027
2020-10-19 2020-09-30 13F DIAMONDBACK ENERGY COM 25278X109 5,150 1,507 155 0.0017
2021-09-15 2020-06-30 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 3,643 0 0.00 342 0.00 0.0027
2020-07-22 2020-06-30 13F DIAMONDBACK ENERGY COM 25278X109 4,990 1,347 209 0.0025
2021-09-15 2020-03-31 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 3,643 0 0.00 342 0.00 0.0027
2020-04-28 2020-03-31 13F DIAMONDBACK ENERGY COM 25278X109 8,989 5,346 236 0.0035
2021-09-14 2019-12-31 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 3,643 0 0.00 342 0.00 0.0027
2020-01-27 2019-12-31 13F DIAMONDBACK ENERGY COM 25278X109 7,735 4,092 718 0.0092
2021-09-14 2019-09-30 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 3,643 0 0.00 342 0.00 0.0027
2019-10-22 2019-09-30 13F DIAMONDBACK ENERGY COM 25278X109 10,156 6,513 913 0.0133
2021-09-14 2019-06-30 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 3,643 0 0.00 342 0.00 0.0027
2019-07-31 2019-06-30 13F DIAMONDBACK ENERGY COM 25278X109 12,702 9,059 1,384 0.0229
2021-09-02 2019-03-31 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 3,643 -4,764 -56.67 342 -56.10 0.0027
2019-04-22 2019-03-31 13F DIAMONDBACK ENERGY COM 25278X109 7,633 -774 775 0.0155
2019-01-25 2018-12-31 13F DIAMONDBACK ENERGY COM 25278X109 8,407 -1,036 -10.97 779 -39.00 0.0195
2018-10-29 2018-09-30 13F DIAMONDBACK ENERGY COM 25278X109 9,443 520 5.83 1,277 8.77 0.0326
2018-07-31 2018-06-30 13F DIAMONDBACK ENERGY COM 25278X109 8,923 -41,917 -82.45 1,174 -81.75 0.0386
2018-04-26 2018-03-31 13F DIAMONDBACK ENERGY COM 25278X109 50,840 40,367 385.44 6,432 386.54 0.2556
2018-01-16 2017-12-31 13F DIAMONDBACK ENERGY COM 25278X109 10,473 -3,054 -22.58 1,322 -0.23 0.0587
2017-10-16 2017-09-30 13F DIAMONDBACK ENERGY COM 25278X109 13,527 -118 -0.86 1,325 9.32 0.0626
2017-07-17 2017-06-30 13F DIAMONDBACK ENERGY COM 25278X109 13,645 734 5.69 1,212 -9.48 0.0621
2017-04-17 2017-03-31 13F DIAMONDBACK ENERGY COM 25278X109 12,911 829 6.86 1,339 9.66 0.0757
2017-01-19 2016-12-31 13F DIAMONDBACK ENERGY COM 25278X109 12,082 561 4.87 1,221 9.80 0.0748
2016-10-17 2016-09-30 13F DIAMONDBACK ENERGY COM 25278X109 11,521 298 2.66 1,112 8.59 0.0768
2016-07-21 2016-06-30 13F DIAMONDBACK ENERGY COM 25278X109 11,223 -1,738 -13.41 1,024 2.40 0.0747
2016-04-18 2016-03-31 13F DIAMONDBACK ENERGY COM 25278X109 12,961 3,870 42.57 1,000 64.47 0.0878
2016-02-01 2015-12-31 13F DIAMONDBACK ENERGY COM 25278X109 9,091 2,719 42.67 608 47.57 0.0594
2015-10-30 2015-09-30 13F DIAMONDBACK ENERGY COM 25278X109 6,372 6,372 412 0.0415
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.