Diamondback Energy, Inc.
US ˙ NasdaqGS ˙ US25278X1090

SecurityFANG / Diamondback Energy, Inc.
InstitutionGeode Capital Management, Llc
Latest Disclosed Ownership5,324,534 shares
Latest Disclosed Value $ 1,049,389,684
Geode Capital Management, Llc reports 5.28% decrease in ownership of FANG / Diamondback Energy, Inc.

On May 15, 2026 - Geode Capital Management, Llc filed a 13F-HR form disclosing ownership of 5,324,534 shares of Diamondback Energy, Inc. (US:FANG) valued at $1,053,139,580 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 5,621,120 shares of Diamondback Energy, Inc.. This represents a change in shares of -5.28% during the quarter. The current value of the position is $1,025,611,739 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 5,324,534 -296,586 -5.28 1,049,390 24.32 0.0349
2026-02-09 2025-12-31 13F DIAMONDBACK ENERGY COM 25278X109 5,621,120 14,625 0.26 844,073 5.35 0.0521
2025-11-12 2025-09-30 13F DIAMONDBACK ENERGY COM 25278X109 5,606,495 164,846 3.03 801,204 7.32 0.0511
2025-08-08 2025-06-30 13F DIAMONDBACK ENERGY COM 25278X109 5,441,649 142,649 2.69 746,526 -11.93 0.0523
2025-05-13 2025-03-31 13F DIAMONDBACK ENERGY COM 25278X109 5,299,000 588,835 12.50 847,654 10.13 0.0666
2025-02-12 2024-12-31 13F DIAMONDBACK ENERGY COM 25278X109 4,710,165 91,605 1.98 769,706 -3.01 0.0596
2024-11-12 2024-09-30 13F DIAMONDBACK ENERGY COM 25278X109 4,618,560 266,299 6.12 793,611 -8.69 0.0643
2024-08-09 2024-06-30 13F DIAMONDBACK ENERGY COM 25278X109 4,352,261 165,499 3.95 869,098 5.01 0.0763
2024-05-13 2024-03-31 13F DIAMONDBACK ENERGY COM 25278X109 4,186,762 89,670 2.19 827,597 30.58 0.0765
2024-02-13 2023-12-31 13F DIAMONDBACK ENERGY COM 25278X109 4,097,092 87,430 2.18 633,793 2.27 0.0663
2023-11-13 2023-09-30 13F DIAMONDBACK ENERGY COM 25278X109 4,009,662 41,270 1.04 619,744 19.18 0.0738
2023-08-11 2023-06-30 13F DIAMONDBACK ENERGY COM 25278X109 3,968,392 48,467 1.24 519,995 -1.65 0.0611
2023-05-15 2023-03-31 13F DIAMONDBACK ENERGY COM 25278X109 3,919,925 179,405 4.80 528,736 103,573.53 0.0687
2023-02-13 2022-12-31 13F DIAMONDBACK ENERGY COM 25278X109 3,740,520 -68 -0.00 511 -99.89 0.0717
2022-11-14 2022-09-30 13F DIAMONDBACK ENERGY COM 25278X109 3,740,588 219,183 6.22 450,099 5.68 0.0683
2022-08-12 2022-06-30 13F DIAMONDBACK ENERGY COM 25278X109 3,521,405 -54,785 -1.53 425,890 -12.93 0.0624
2022-05-13 2022-03-31 13F DIAMONDBACK ENERGY COM 25278X109 3,576,190 147,262 4.29 489,148 32.59 0.0611
2022-02-11 2021-12-31 13F DIAMONDBACK ENERGY COM 25278X109 3,428,928 96,622 2.90 368,917 17.11 0.0444
2021-11-12 2021-09-30 13F DIAMONDBACK ENERGY COM 25278X109 3,332,306 -20,493 -0.61 315,009 0.23 0.0424
2021-08-13 2021-06-30 13F DIAMONDBACK ENERGY COM 25278X109 3,352,799 117,628 3.64 314,279 32.40 0.0433
2021-05-12 2021-03-31 13F DIAMONDBACK ENERGY COM 25278X109 3,235,171 407,079 14.39 237,367 73.68 0.0363
2021-02-12 2020-12-31 13F DIAMONDBACK ENERGY COM 25278X109 2,828,092 74,648 2.71 136,669 65.11 0.0229
2020-11-13 2020-09-30 13F DIAMONDBACK ENERGY COM 25278X109 2,753,444 -82,002 -2.89 82,777 -30.08 0.0162
2020-08-13 2020-06-30 13F DIAMONDBACK ENERGY COM 25278X109 2,835,446 129,925 4.80 118,380 67.31 0.0253
2020-05-14 2020-03-31 13F DIAMONDBACK ENERGY COM 25278X109 2,705,521 60,449 2.29 70,757 -71.14 0.0184
2020-02-20 2019-12-31 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 2,645,072 137,234 5.47 245,149 8.89 0.0512
2020-02-13 2019-12-31 13F DIAMONDBACK ENERGY COM 25278X109 2,645,072 137,234 245,149 31,242.0906
2019-11-12 2019-09-30 13F DIAMONDBACK ENERGY COM 25278X109 2,507,838 179,194 7.70 225,142 -11.13 0.0525
2019-08-14 2019-06-30 13F DIAMONDBACK ENERGY COM 25278X109 2,328,644 107,087 4.82 253,333 12.51 0.0613
2019-05-14 2019-03-31 13F DIAMONDBACK ENERGY COM 25278X109 2,221,557 181,382 8.89 225,171 19.27 0.0583
2019-03-06 2018-12-31 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 2,040,175 1,145,573 128.05 188,797 56.21 0.0584
2019-02-13 2018-12-31 13F DIAMONDBACK ENERGY COM 25278X109 2,040,175 1,145,573 188,797
2018-11-13 2018-09-30 13F DIAMONDBACK ENERGY COM 25278X109 894,602 17,604 2.01 120,858 4.82 0.0341
2018-08-14 2018-06-30 13F DIAMONDBACK ENERGY COM 25278X109 876,998 -59,375 -6.34 115,300 -2.60 0.0354
2018-05-15 2018-03-31 13F DIAMONDBACK ENERGY COM 25278X109 936,373 60,266 6.88 118,379 7.08 0.0386
2018-02-13 2017-12-31 13F DIAMONDBACK ENERGY COM 25278X109 876,107 18,817 2.19 110,554 31.71 0.0375
2017-11-14 2017-09-30 13F DIAMONDBACK ENERGY COM 25278X109 857,290 24,349 2.92 83,940 13.51 0.0310
2017-08-14 2017-06-30 13F DIAMONDBACK ENERGY COM 25278X109 832,941 92,134 12.44 73,948 -3.72 0.0291
2017-06-21 2017-03-31 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 740,807 89,815 13.80 76,807 16.78 0.0315
2017-05-12 2017-03-31 13F DIAMONDBACK ENERGY COM 25278X109 740,807 76,807
2017-02-14 2016-12-31 13F DIAMONDBACK ENERGY COM 25278X109 650,992 105,556 19.35 65,770 24.91 0.0306
2016-11-10 2016-09-30 13F DIAMONDBACK ENERGY COM 25278X109 545,436 64,625 13.44 52,656 20.07 0.0265
2016-08-12 2016-06-30 13F DIAMONDBACK ENERGY COM 25278X109 480,811 14,608 3.13 43,854 21.88 0.0239
2016-05-13 2016-03-31 13F DIAMONDBACK ENERGY COM 25278X109 466,203 49,821 11.97 35,981 29.17 0.0191
2016-02-12 2015-12-31 13F DIAMONDBACK ENERGY COM 25278X109 416,382 8,225 2.02 27,855 5.65 0.0159
2015-11-13 2015-09-30 13F DIAMONDBACK ENERGY COM 25278X109 408,157 25,743 6.73 26,366 -8.53 0.0160
2015-08-14 2015-06-30 13F DIAMONDBACK ENERGY COM 25278X109 382,414 38,187 11.09 28,825 8.98 0.0165
2015-05-14 2015-03-31 13F DIAMONDBACK ENERGY COM 25278X109 344,227 38,657 12.65 26,450 44.80 0.0151
2015-02-12 2014-12-31 13F DIAMONDBACK ENERGY COM 25278X109 305,570 5,078 1.69 18,266 -18.71 0.0109
2014-11-14 2014-09-30 13F DIAMONDBACK ENERGY COM 25278X109 300,492 98,886 49.05 22,470 25.52 0.0146
2014-08-13 2014-06-30 13F DIAMONDBACK ENERGY COM 25278X109 201,606 18,010 9.81 17,902 44.87 0.0116
2014-05-14 2014-03-31 13F DIAMONDBACK ENERGY COM 25278X109 183,596 -5,779 -3.05 12,357 23.45 0.0083
2014-02-14 2013-12-31 13F DIAMONDBACK ENERGY COM 25278X109 189,375 18,689 10.95 10,010 37.54 0.0069
2013-11-14 2013-09-30 13F DIAMONDBACK ENERGY COM 25278X109 170,686 34,539 25.37 7,278 60.45 0.0058
2013-08-14 2013-06-30 13F DIAMONDBACK ENERGY COM 25278X109 136,147 136,147 4,536 0.0040
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.