Diamondback Energy, Inc.
US ˙ NasdaqGS ˙ US25278X1090

SecurityFANG / Diamondback Energy, Inc.
InstitutionBokf, Na
Latest Disclosed Ownership42,206 shares
Latest Disclosed Value $ 8,347,925
Bokf, Na reports 89.51% increase in ownership of FANG / Diamondback Energy, Inc.

On May 8, 2026 - Bokf, Na filed a 13F-HR form disclosing ownership of 42,206 shares of Diamondback Energy, Inc. (US:FANG) valued at $8,347,925 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 22,271 shares of Diamondback Energy, Inc.. This represents a change in shares of 89.51% during the quarter. The current value of the position is $8,888,162 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)
2026-05-08 2026-03-31 13F DIAMONDBACK ENERGY common 25278X109 42,206 19,935 89.51 8,348 149.39 0.0983
2026-02-03 2025-12-31 13F DIAMONDBACK ENERGY common 25278X109 22,271 -7,763 -25.85 3,348 -22.11 0.0512
2025-11-13 2025-09-30 13F DIAMONDBACK ENERGY common 25278X109 30,034 -4,808 -13.80 4,298 -10.24 0.0647
2025-08-12 2025-06-30 13F DIAMONDBACK ENERGY common 25278X109 34,842 4,246 13.88 4,787 -2.13 0.0775
2025-05-13 2025-03-31 13F DIAMONDBACK ENERGY common 25278X109 30,596 -55,556 -64.49 4,892 -67.51 0.0865
2025-02-14 2024-12-31 13F DIAMONDBACK ENERGY common 25278X109 86,152 -11,150 -11.46 15,057 -17.82 0.2544
2024-11-14 2024-09-30 13F DIAMONDBACK ENERGY common 25278X109 97,302 9,366 10.65 18,322 4.08 0.3251
2024-08-08 2024-06-30 13F DIAMONDBACK ENERGY COM 25278X109 87,936 -2,516 -2.78 17,604 -2.42 0.3160
2024-05-15 2024-03-31 13F DIAMONDBACK ENERGY COM 25278X109 90,452 12,243 15.65 18,041 48.75 0.3285
2024-02-14 2023-12-31 13F DIAMONDBACK ENERGY COM 25278X109 78,209 -8,748 -10.06 12,129 -13.00 0.2375
2023-11-14 2023-09-30 13F DIAMONDBACK ENERGY COM 25278X109 86,957 64,427 285.96 13,941 371.11 0.3073
2023-08-21 2023-06-30 13F DIAMONDBACK ENERGY COM 25278X109 22,530 -10,110 -30.97 2,960 -32.92 0.0603
2023-05-11 2023-03-31 13F DIAMONDBACK ENERGY COM 25278X109 32,640 4,166 14.63 4,412 13.28 0.0923
2023-02-13 2022-12-31 13F DIAMONDBACK ENERGY COM 25278X109 28,474 -13,913 -32.82 3,895 -23.74 0.0719
2022-11-14 2022-09-30 13F DIAMONDBACK ENERGY COM 25278X109 42,387 -25,181 -37.27 5,106 -37.63 0.1033
2022-08-11 2022-06-30 13F DIAMONDBACK ENERGY COM 25278X109 67,568 -757 -1.11 8,186 -12.60 0.1569
2022-05-13 2022-03-31 13F DIAMONDBACK ENERGY COM 25278X109 68,325 112 0.16 9,366 27.31 0.1543
2022-03-11 2021-12-31 13F DIAMONDBACK ENERGY COM 25278X109 68,213 6,949 11.34 7,357 26.84 0.1138
2021-11-10 2021-09-30 13F DIAMONDBACK ENERGY COM 25278X109 61,264 23,305 61.40 5,800 107.89 0.0997
2021-04-21 2021-03-31 13F DIAMONDBACK ENERGY COM 25278X109 37,959 13,575 55.67 2,790 136.44 0.0507
2021-02-12 2020-12-31 13F DIAMONDBACK ENERGY COM 25278X109 24,384 -27,200 -52.73 1,180 -24.07 0.0225
2020-10-30 2020-09-30 13F DIAMONDBACK ENERGY COM 25278X109 51,584 -278 -0.54 1,554 -28.35 0.0341
2020-08-12 2020-06-30 13F DIAMONDBACK ENERGY COM 25278X109 51,862 51,862 2,169 0.0510
2020-02-12 2019-12-31 13F DIAMONDBACK ENERGY COM 25278X109 0 -6,114 -100.00 0 -100.00
2019-11-13 2019-09-30 13F DIAMONDBACK ENERGY COM 25278X109 6,114 -830 -11.95 550 -27.25 0.0132
2019-08-14 2019-06-30 13F DIAMONDBACK ENERGY COM 25278X109 6,944 -1,321 -15.98 756 -9.89 0.0182
2019-05-15 2019-03-31 13F DIAMONDBACK ENERGY COM 25278X109 8,265 6,573 388.48 839 437.82 0.0201
2019-02-13 2018-12-31 13F DIAMONDBACK ENERGY COM 25278X109 1,692 1,692 156 0.0045
2018-08-13 2018-06-30 13F DIAMONDBACK ENERGY COM 25278X109 0 -1,236 -100.00 0 -100.00
2018-05-14 2018-03-31 13F DIAMONDBACK ENERGY COM 25278X109 1,236 -65 -5.00 157 -4.85 0.0045
2018-02-14 2017-12-31 13F DIAMONDBACK ENERGY COM 25278X109 1,301 -140 -9.72 165 16.20 0.0045
2017-11-14 2017-09-30 13F DIAMONDBACK ENERGY COM 25278X109 1,441 239 19.88 142 33.96 0.0041
2017-08-14 2017-06-30 13F DIAMONDBACK ENERGY COM 25278X109 1,202 3 0.25 106 -14.52 0.0033
2017-05-15 2017-03-31 13F DIAMONDBACK ENERGY COM 25278X109 1,199 29 2.48 124 5.08 0.0039
2017-02-14 2016-12-31 13F DIAMONDBACK ENERGY COM 25278X109 1,170 -38 -3.15 118 1.72 0.0039
2016-11-10 2016-09-30 13F DIAMONDBACK ENERGY COM 25278X109 1,208 137 12.79 116 19.59 0.0038
2016-08-12 2016-06-30 13F DIAMONDBACK ENERGY COM 25278X109 1,071 17 1.61 97 19.75 0.0034
2016-05-13 2016-03-31 13F DIAMONDBACK ENERGY COM 25278X109 1,054 337 47.00 81 65.31 0.0029
2016-02-09 2015-12-31 13F DIAMONDBACK ENERGY COM 25278X109 717 -904 -55.77 49 -52.88 0.0018
2015-11-13 2015-09-30 13F DIAMONDBACK ENERGY COM 25278X109 1,621 921 131.57 104 96.23 0.0039
2015-08-13 2015-06-30 13F DIAMONDBACK ENERGY COM 25278X109 700 -13 -1.82 53 -3.64 0.0018
2015-05-14 2015-03-31 13F DIAMONDBACK ENERGY COM 25278X109 713 713 0.00 55 0.0019
2015-02-12 2014-12-31 13F DIAMONDBACK ENERGY COM 25278X109 0 -7,629 -100.00 0 -100.00
2014-11-13 2014-09-30 13F DIAMONDBACK ENERGY COM 25278X109 7,629 -220 -2.80 570 -18.22 0.0191
2014-08-14 2014-06-30 13F DIAMONDBACK ENERGY COM 25278X109 7,849 7,849 697 0.0224
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.