Diamondback Energy, Inc.
US ˙ NasdaqGS ˙ US25278X1090

SecurityFANG / Diamondback Energy, Inc.
InstitutionLegal & General Group Plc
Latest Disclosed Ownership1,026,169 shares
Latest Disclosed Value $ 202,965,969
Legal & General Group Plc reports 0.15% increase in ownership of FANG / Diamondback Energy, Inc.

On May 8, 2026 - Legal & General Group Plc filed a 13F-HR form disclosing ownership of 1,026,169 shares of Diamondback Energy, Inc. (US:FANG) valued at $202,965,967 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 1,024,615 shares of Diamondback Energy, Inc.. This represents a change in shares of 0.15% during the quarter. The current value of the position is $197,660,673 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)
2026-05-08 2026-03-31 13F DIAMONDBACK ENERGY COM 25278X109 1,026,169 1,554 0.15 202,966 31.77 0.0469
2026-02-09 2025-12-31 13F DIAMONDBACK ENERGY COM 25278X109 1,024,615 -75,263 -6.84 154,030 -2.14 0.0342
2025-11-13 2025-09-30 13F DIAMONDBACK ENERGY COM 25278X109 1,099,878 23,724 2.20 157,393 6.44 0.0353
2025-08-12 2025-06-30 13F DIAMONDBACK ENERGY COM 25278X109 1,076,154 -160,369 -12.97 147,864 -25.21 0.0367
2025-05-15 2025-03-31 13F DIAMONDBACK ENERGY COM 25278X109 1,236,523 43,322 3.63 197,695 1.13 0.0538
2025-02-13 2024-12-31 13F DIAMONDBACK ENERGY COM 25278X109 1,193,201 13,721 1.16 195,482 -3.87 0.0517
2025-02-28 2024-09-30 13F/A-2 DIAMONDBACK ENERGY COM 25278X109 1,179,480 73,725 6.67 203,342 -8.14 0.0535
2024-11-14 2024-09-30 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 1,562,702 127,018 269,410 0.0561
2024-11-14 2024-09-30 13F DIAMONDBACK ENERGY COM 25278X109 1,562,702 127,018 269,410 0.0283
2025-05-29 2024-06-30 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 1,105,755 7,751 0.71 221,362 1.73 0.0625
2024-08-14 2024-06-30 13F DIAMONDBACK ENERGY COM 25278X109 1,435,684 109,197 287,410 0.0643
2025-05-29 2024-03-31 13F/A-2 DIAMONDBACK ENERGY COM 25278X109 1,098,004 -27,583 -2.45 217,591 24.65 0.0626
2024-07-01 2024-03-31 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 1,326,487 -30,322 262,870 0.0614
2024-05-14 2024-03-31 13F DIAMONDBACK ENERGY COM 25278X109 1,326,487 -30,322 262,870 0.0316
2025-05-29 2023-12-31 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 1,125,587 -71,909 -6.00 174,556 -5.88 0.0542
2024-02-15 2023-12-31 13F DIAMONDBACK ENERGY COM 25278X109 1,356,809 159,313 210,414 0.0540
2023-11-14 2023-09-30 13F DIAMONDBACK ENERGY COM 25278X109 1,197,496 -30,647 -2.50 185,468 14.96 0.0647
2023-08-14 2023-06-30 13F DIAMONDBACK ENERGY COM 25278X109 1,228,143 -46,136 -3.62 161,329 -6.34 0.0525
2023-05-15 2023-03-31 13F DIAMONDBACK ENERGY COM 25278X109 1,274,279 -68,312 -5.09 172,244 -6.21 0.0616
2023-02-14 2022-12-31 13F DIAMONDBACK ENERGY COM 25278X109 1,342,591 -13,460 -0.99 183,640 12.42 0.0705
2022-11-14 2022-09-30 13F DIAMONDBACK ENERGY COM 25278X109 1,356,051 -63,514 -4.47 163,350 -5.02 0.0638
2022-08-22 2022-06-30 13F DIAMONDBACK ENERGY COM 25278X109 1,419,565 125,909 9.73 171,982 -3.02 0.0609
2022-05-16 2022-03-31 13F DIAMONDBACK ENERGY COM 25278X109 1,293,656 4,305 0.33 177,335 27.53 0.0539
2022-02-14 2021-12-31 13F DIAMONDBACK ENERGY COM 25278X109 1,289,351 149,461 13.11 139,056 28.86 0.0421
2021-11-15 2021-09-30 13F DIAMONDBACK ENERGY COM 25278X109 1,139,890 151,047 15.28 107,912 16.23 0.0351
2021-08-12 2021-06-30 13F DIAMONDBACK ENERGY COM 25278X109 988,843 321,123 48.09 92,842 89.20 0.0310
2021-05-17 2021-03-31 13F DIAMONDBACK ENERGY COM 25278X109 667,720 141,498 26.89 49,071 92.67 0.0183
2021-02-12 2020-12-31 13F DIAMONDBACK ENERGY COM 25278X109 526,222 -402,433 -43.34 25,469 -8.95 0.0100
2020-11-13 2020-09-30 13F DIAMONDBACK ENERGY COM 25278X109 928,655 -3,565 -0.38 27,972 -28.25 0.0125
2020-08-14 2020-06-30 13F DIAMONDBACK ENERGY COM 25278X109 932,220 -10,230 -1.09 38,986 57.39 0.0188
2020-05-14 2020-03-31 13F DIAMONDBACK ENERGY COM 25278X109 942,450 33,715 3.71 24,771 -70.65 0.0145
2020-02-13 2019-12-31 13F DIAMONDBACK ENERGY COM 25278X109 908,735 8,811 0.98 84,386 -13.95 0.0402
2019-08-14 2019-06-30 13F DIAMONDBACK ENERGY COM 25278X109 899,924 -13,915 -1.52 98,065 5.69 0.0527
2019-05-15 2019-03-31 13F DIAMONDBACK ENERGY COM 25278X109 913,839 169,659 22.80 92,782 34.50 0.0530
2019-02-15 2018-12-31 13F DIAMONDBACK ENERGY COM 25278X109 744,180 343,248 85.61 68,985 27.27 0.0534
2018-11-20 2018-09-30 13F DIAMONDBACK ENERGY COM 25278X109 400,932 16,456 4.28 54,202 7.15 0.0388
2018-08-10 2018-06-30 13F DIAMONDBACK ENERGY COM 25278X109 384,476 -17,003 -4.24 50,586 -0.41 0.0390
2018-05-17 2018-03-31 13F DIAMONDBACK ENERGY COM 25278X109 401,479 270,607 206.77 50,795 207.44 0.0388
2018-02-13 2017-12-31 13F DIAMONDBACK ENERGY COM 25278X109 130,872 3,646 2.87 16,522 32.57 0.0120
2017-11-09 2017-09-30 13F DIAMONDBACK ENERGY COM 25278X109 127,226 22,952 22.01 12,463 34.59 0.0094
2017-08-03 2017-06-30 13F DIAMONDBACK ENERGY COM 25278X109 104,274 15,527 17.50 9,260 0.61 0.0075
2017-05-12 2017-03-31 13F DIAMONDBACK ENERGY COM 25278X109 88,747 31,361 54.65 9,204 58.72 0.0078
2017-02-13 2016-12-31 13F DIAMONDBACK ENERGY COM 25278X109 57,386 49,820 658.47 5,799 694.38 0.0054
2016-10-12 2016-09-30 13F DIAMONDBACK ENERGY COM 25278X109 7,566 1,804 31.31 730 38.78 0.0007
2016-08-16 2016-06-30 13F DIAMONDBACK ENERGY COM 25278X109 5,762 215 3.88 526 22.90 0.0006
2016-05-16 2016-03-31 13F DIAMONDBACK ENERGY COM 25278X109 5,547 1,417 34.31 428 55.07 0.0005
2016-02-16 2015-12-31 13F DIAMONDBACK ENERGY COM 25278X109 4,130 1,148 38.50 276 43.01 0.0003
2015-11-13 2015-09-30 13F DIAMONDBACK ENERGY COM 25278X109 2,982 -65 -2.13 193 -16.09 0.0002
2015-07-31 2015-06-30 13F DIAMONDBACK ENERGY COM 25278X109 3,047 -5,180 -62.96 230 -63.32 0.0003
2015-05-14 2015-03-31 13F DIAMONDBACK ENERGY COM 25278X109 8,227 2,023 32.61 627 74.65 0.0007
2015-02-20 2014-12-31 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 6,204 840 15.66 359 -11.79 0.0004
2015-02-17 2014-12-31 13F DIAMONDBACK ENERGY COM 25278X109 6,204 840 359 0.0004
2014-11-14 2014-09-30 13F DIAMONDBACK ENERGY COM 25278X109 5,364 5,364 407 0.0005
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.