Diamondback Energy, Inc.
US ˙ NasdaqGS ˙ US25278X1090

SecurityFANG / Diamondback Energy, Inc.
InstitutionMacquarie Group Ltd
Latest Disclosed Ownership14,235 shares
Latest Disclosed Value $ 2,815,541
Macquarie Group Ltd reports 22.24% decrease in ownership of FANG / Diamondback Energy, Inc.

On May 15, 2026 - Macquarie Group Ltd filed a 13F-HR form disclosing ownership of 14,235 shares of Diamondback Energy, Inc. (US:FANG) valued at $2,815,541 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 18,306 shares of Diamondback Energy, Inc.. This represents a change in shares of -22.24% during the quarter. The current value of the position is $2,888,851 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 DIAMONDBACK ENERGY COM 25278X109 14,235 -4,071 -22.24 2,816 2.33 0.0131
2026-02-13 2025-12-31 13F DIAMONDBACK ENERGY COM 25278X109 18,306 -123,895 -87.13 2,752 -86.48 0.0120
2025-11-13 2025-09-30 13F DIAMONDBACK ENERGY COM 25278X109 142,201 34,857 32.47 20,349 37.98 0.0238
2025-08-14 2025-06-30 13F DIAMONDBACK ENERGY COM 25278X109 107,344 -9,736 -8.32 14,749 -21.21 0.0181
2025-08-14 2025-03-31 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 117,080 -23,919 -16.96 18,719 -14.55 0.0232
2025-05-15 2025-03-31 13F DIAMONDBACK ENERGY COM 25278X109 127,636 -13,363 17,035 0.0139
2025-02-14 2024-12-31 13F DIAMONDBACK ENERGY COM 25278X109 140,999 55,174 64.29 21,906 48.05 0.0266
2024-11-14 2024-09-30 13F DIAMONDBACK ENERGY COM 25278X109 85,825 -1,053 -1.21 14,796 -14.93 0.0160
2024-08-09 2024-06-30 13F DIAMONDBACK ENERGY COM 25278X109 86,878 -3,893 -4.29 17,392 -3.31 0.0199
2024-05-14 2024-03-31 13F DIAMONDBACK ENERGY COM 25278X109 90,771 -1,418 -1.54 17,988 25.83 0.0204
2024-02-14 2023-12-31 13F DIAMONDBACK ENERGY COM 25278X109 92,189 2,902 3.25 14,297 3.38 0.0165
2023-11-14 2023-09-30 13F DIAMONDBACK ENERGY COM 25278X109 89,287 170 0.19 13,828 18.13 0.0174
2023-10-27 2023-06-30 13F/A-2 DIAMONDBACK ENERGY COM 25278X109 89,117 -106,491 -54.44 11,707 -55.73 0.0134
2023-10-12 2023-06-30 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 89,117 -106,491 11,707 0.0118
2023-08-14 2023-06-30 13F DIAMONDBACK ENERGY COM 25278X109 89,117 -106,491 11,707 0.0119
2023-06-01 2023-03-31 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 195,608 -2,267 -1.15 26,440 -2.31 0.0314
2023-05-15 2023-03-31 13F DIAMONDBACK ENERGY COM 25278X109 195,608 -2,267 26,440 0.0243
2023-02-21 2022-12-31 13F DIAMONDBACK ENERGY COM 25278X109 197,875 -109,623 -35.65 27,066 -26.93 0.0320
2022-11-14 2022-09-30 13F DIAMONDBACK ENERGY COM 25278X109 307,498 -61,606 -16.69 37,042 -17.16 0.0454
2022-08-17 2022-06-30 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 369,104 -17,362 -4.49 44,717 -15.59 0.0502
2022-08-15 2022-06-30 13F DIAMONDBACK ENERGY COM 25278X109 369,104 -17,362 44,717 0.0160
2022-05-16 2022-03-31 13F DIAMONDBACK ENERGY COM 25278X109 386,466 -23,979 -5.84 52,977 19.68 0.0403
2022-02-11 2021-12-31 13F Diamondback Energy COM 25278X109 410,445 -88,764 -17.78 44,267 -6.33 0.0369
2021-11-12 2021-09-30 13F DIAMONDBACK ENERGY COM 25278X109 499,209 14,766 3.05 47,260 3.90 0.0403
2021-08-13 2021-06-30 13F DIAMONDBACK ENERGY COM 25278X109 484,443 226,377 87.72 45,485 139.84 0.0374
2021-05-14 2021-03-31 13F DIAMONDBACK ENERGY COM 25278X109 258,066 40,710 18.73 18,965 80.28 0.0268
2021-02-16 2020-12-31 13F DIAMONDBACK ENERGY COM 25278X109 217,356 995 0.46 10,520 61.42 0.0154
2020-11-13 2020-09-30 13F DIAMONDBACK ENERGY COM 25278X109 216,361 83,080 62.33 6,517 16.92 0.0110
2020-08-11 2020-06-30 13F DIAMONDBACK ENERGY COM 25278X109 133,281 -64,361 -32.56 5,574 7.65 0.0096
2020-05-15 2020-03-31 13F DIAMONDBACK ENERGY COM 25278X109 197,642 -23,227 -10.52 5,178 -74.75 0.0106
2020-03-18 2019-12-31 13F/A-2 DIAMONDBACK ENERGY COM 25278X109 220,869 4,384 2.03 20,510 5.37 0.0293
2020-02-28 2019-12-31 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 220,869 0 20,510 0.0296
2020-02-14 2019-12-31 13F DIAMONDBACK ENERGY COM 25278X109 220,869 4,384 20,510 25,738.3118
2019-11-14 2019-09-30 13F DIAMONDBACK ENERGY COM 25278X109 216,485 -29,696 -12.06 19,464 -27.44 0.0326
2019-11-06 2019-06-30 13F/A-2 DIAMONDBACK ENERGY COM 25278X109 246,181 -5,227 -2.08 26,826 5.10 0.0452
2019-09-24 2019-06-30 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 246,181 0 26,826 0.0456
2019-08-14 2019-06-30 13F DIAMONDBACK ENERGY COM 25278X109 246,181 -5,227 26,826
2019-05-15 2019-03-31 13F DIAMONDBACK ENERGY COM 25278X109 251,408 80,666 47.24 25,525 61.26 0.0435
2019-02-15 2018-12-31 13F DIAMONDBACK ENERGY COM 25278X109 170,742 -70,677 -29.28 15,828 -51.50 0.0306
2018-11-15 2018-09-30 13F DIAMONDBACK ENERGY COM 25278X109 241,419 9,795 4.23 32,637 7.10 0.0532
2019-03-21 2018-06-30 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 231,624 -66,710 -22.36 30,474 -19.26 0.0525
2018-08-14 2018-06-30 13F DIGITAL RLTY TR COM 25278X109 231,624 -66,710 30,474
2018-05-11 2018-03-31 13F DIAMONDBACK ENERGY COM 25278X109 298,334 4,519 1.54 37,745 1.46 0.0688
2018-02-14 2017-12-31 13F DIAMONDBACK ENERGY COM 25278X109 293,815 61,600 26.53 37,201 63.54 0.0658
2017-11-08 2017-09-30 13F DIAMONDBACK ENERGY COM 25278X109 232,215 59,031 34.09 22,747 47.90 0.0408
2017-08-14 2017-06-30 13F DIAMONDBACK ENERGY COM 25278X109 173,184 -252,403 -59.31 15,380 -65.16 0.0281
2017-05-15 2017-03-31 13F Diamondback Energy COM 25278X109 425,587 -39,233 -8.44 44,140 -6.04 0.0802
2017-03-30 2016-12-31 13F/A-1 Diamondback Energy COMMON 25278X109 464,820 -122,136 -20.81 46,975 -17.10 0.0899
2017-02-15 2016-12-31 13F Diamondback Energy COMMON 25278X109 464,820 46,975
2016-11-15 2016-09-30 13F DIAMONDBACK ENERGY COMMON 25278X109 586,956 435,913 288.60 56,665 311.30 0.1090
2016-09-14 2016-06-30 13F/A-1 DIAMONDBACK ENERGY COMMON 25278X109 151,043 22,409 17.42 13,777 38.77 0.0271
2016-08-15 2016-06-30 13F DIAMONDBACK ENERGY COMMON 25278X109 151,043 13,777
2016-05-16 2016-03-31 13F DIAMONDBACK ENERGY COMMON 25278X109 128,634 100,894 363.71 9,928 434.91 0.0200
2016-02-16 2015-12-31 13F DIAMONDBACK ENERGY COMMON 25278X109 27,740 -1,103 -3.82 1,856 -0.38 0.0038
2015-11-16 2015-09-30 13F DIAMONDBACK ENERGY COMMON 25278X109 28,843 -106,821 -78.74 1,863 -81.78 0.0040
2015-08-21 2015-06-30 13F/A-1 DIAMONDBACK ENERGY COMMON 25278X109 135,664 -15,735 -10.39 10,226 -12.09 0.0202
2015-08-14 2015-06-30 13F DIAMONDBACK ENERGY COMMON 25278X109 135,664 10,226
2015-05-18 2015-03-31 13F DIAMONDBACK ENERGY COMMON 25278X109 151,399 43,293 40.05 11,633 79.99 0.0228
2015-02-17 2014-12-31 13F DIAMONDBACK ENERGY COMMON 25278X109 108,106 33,453 44.81 6,463 15.76 0.0133
2014-11-14 2014-09-30 13F DIAMONDBACK ENERGY COMMON 25278X109 74,653 405 0.55 5,583 -15.32 0.0120
2014-08-14 2014-06-30 13F DIAMONDBACK ENERGY COMMON 25278X109 74,248 -7,735 -9.43 6,593 19.48 0.0147
2014-05-15 2014-03-31 13F DIAMONDBACK ENERGY Common 25278X109 81,983 16,236 24.69 5,518 58.75 0.0095
2014-02-14 2013-12-31 13F DIAMONDBACK ENERGY Common Stock 25278X109 65,747 5,905 9.87 3,476 36.21 0.0062
2013-11-14 2013-09-30 13F DIAMONDBACK ENERGY Common Stock 25278X109 59,842 11,307 23.30 2,552 57.82 0.0050
2013-08-16 2013-06-30 13F/A-1 DIAMONDBACK ENERGY COMMON 25278X109 48,535 48,535 1,617 0.0035
2013-08-14 2013-06-30 13F DIAMONDBACK ENERGY COMMON 25278X109 48,535 1,617 0.0035
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.