Diamondback Energy, Inc.
US ˙ NasdaqGS ˙ US25278X1090

SecurityFANG / Diamondback Energy, Inc.
InstitutionAptus Capital Advisors, LLC
Latest Disclosed Ownership210,257 shares
Latest Disclosed Value $ 41,586,809
Aptus Capital Advisors, LLC reports 7.15% decrease in ownership of FANG / Diamondback Energy, Inc.

On May 11, 2026 - Aptus Capital Advisors, LLC filed a 13F-HR form disclosing ownership of 210,257 shares of Diamondback Energy, Inc. (US:FANG) valued at $41,586,732 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 226,457 shares of Diamondback Energy, Inc.. This represents a change in shares of -7.15% during the quarter. The current value of the position is $40,499,703 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)
2026-05-11 2026-03-31 13F DIAMONDBACK ENERGY COM 25278X109 210,257 -16,200 -7.15 41,587 22.16 0.3266
2026-02-13 2025-12-31 13F DIAMONDBACK ENERGY COM 25278X109 226,457 8,250 3.78 34,043 9.02 0.2438
2025-11-12 2025-09-30 13F DIAMONDBACK ENERGY COM 25278X109 218,207 -4,218 -1.90 31,225 2.17 0.2271
2025-08-11 2025-06-30 13F DIAMONDBACK ENERGY COM 25278X109 222,425 114,190 105.50 30,561 76.61 0.2490
2025-05-13 2025-03-31 13F DIAMONDBACK ENERGY COM 25278X109 108,235 -52,832 -32.80 17,305 -34.42 0.1781
2025-02-14 2024-12-31 13F DIAMONDBACK ENERGY COM 25278X109 161,067 40,353 33.43 26,388 26.79 0.2763
2024-11-05 2024-09-30 13F DIAMONDBACK ENERGY COM 25278X109 120,714 17,033 16.43 20,811 0.27 0.3105
2024-07-31 2024-06-30 13F DIAMONDBACK ENERGY COM 25278X109 103,681 13,541 15.02 20,756 16.19 0.3654
2024-05-15 2024-03-31 13F DIAMONDBACK ENERGY COM 25278X109 90,140 6,649 7.96 17,863 37.97 0.3323
2024-02-13 2023-12-31 13F DIAMONDBACK ENERGY COM 25278X109 83,491 35,633 74.46 12,948 74.68 0.3541
2023-11-08 2023-09-30 13F DIAMONDBACK ENERGY COM 25278X109 47,858 -3,426 -6.68 7,412 10.04 0.2019
2023-08-11 2023-06-30 13F DIAMONDBACK ENERGY COM 25278X109 51,284 -8,720 -14.53 6,737 -16.94 0.1615
2023-05-09 2023-03-31 13F DIAMONDBACK ENERGY COM 25278X109 60,004 8,664 16.88 8,111 15.49 0.2179
2023-02-13 2022-12-31 13F DIAMONDBACK ENERGY COM 25278X109 51,340 -32,266 -38.59 7,022 -30.28 0.2156
2022-11-02 2022-09-30 13F DIAMONDBACK ENERGY COM 25278X109 83,606 12,583 17.72 10,072 17.06 0.2424
2022-07-29 2022-06-30 13F DIAMONDBACK ENERGY COM 25278X109 71,023 4,548 6.84 8,604 -5.59 0.2238
2022-05-04 2022-03-31 13F DIAMONDBACK ENERGY COM 25278X109 66,475 10,192 18.11 9,113 50.16 0.2268
2022-02-02 2021-12-31 13F DIAMONDBACK ENERGY COM 25278X109 56,283 1,782 3.27 6,069 17.62 0.1822
2021-10-27 2021-09-30 13F DIAMONDBACK ENERGY COM 25278X109 54,501 54,501 5,160 0.1331
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.