Diamondback Energy, Inc.
US ˙ NasdaqGS ˙ US25278X1090

SecurityFANG / Diamondback Energy, Inc.
InstitutionValeo Financial Advisors, LLC
Latest Disclosed Ownership1,613 shares
Latest Disclosed Value $ 319,030
Valeo Financial Advisors, LLC reports 45.08% decrease in ownership of FANG / Diamondback Energy, Inc.

On May 8, 2026 - Valeo Financial Advisors, LLC filed a 13F-HR form disclosing ownership of 1,613 shares of Diamondback Energy, Inc. (US:FANG) valued at $319,035 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 4, 2026 disclosing 2,937 shares of Diamondback Energy, Inc.. This represents a change in shares of -45.08% during the quarter. The current value of the position is $310,696 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 INC COM Stock 25278X109 1,613 -1,324 -45.08 319 -27.66 0.0076
2026-02-04 2025-12-31 13F DIAMONDBACK ENERGY INC COM Stock 25278X109 2,937 369 14.37 441 20.16 0.0098
2025-11-03 2025-09-30 13F DIAMONDBACK ENERGY INC COM Stock 25278X109 2,568 74 2.97 367 7.31 0.0084
2025-09-12 2025-06-30 13F/A-1 DIAMONDBACK ENERGY INC COM Stock 25278X109 2,494 183 7.92 343 -7.32 0.0084
2025-07-22 2025-06-30 13F DIAMONDBACK ENERGY INC COM Stock 25278X109 2,494 183 343 0.0082
2025-04-30 2025-03-31 13F DIAMONDBACK ENERGY INC COM Stock 25278X109 2,311 -391 -14.47 369 -16.52 0.0103
2025-01-30 2024-12-31 13F DIAMONDBACK ENERGY INC COM Stock 25278X109 2,702 -48 -1.75 443 -6.75 0.0123
2024-10-10 2024-09-30 13F DIAMONDBACK ENERGY INC COM Stock 25278X109 2,750 326 13.45 474 -2.27 0.0135
2024-07-10 2024-06-30 13F DIAMONDBACK ENERGY INC COM Stock 25278X109 2,424 365 17.73 485 14.93 0.0152
2024-04-25 2024-03-31 13F/A-1 DIAMONDBACK ENERGY INC COM Stock 25278X109 2,059 304 17.32 423 55.15 0.0151
2024-04-19 2024-03-31 13F DIAMONDBACK ENERGY INC COM Stock 25278X109 2,054 299 407 0.0140
2024-01-29 2023-12-31 13F DIAMONDBACK ENERGY INC COM Stock 25278X109 1,755 -550 -23.86 272 -23.81 0.0110
2023-10-20 2023-09-30 13F DIAMONDBACK ENERGY INC COM Stock 25278X109 2,305 641 38.52 357 63.76 0.0163
2023-07-14 2023-06-30 13F DIAMONDBACK ENERGY INC COM Stock 25278X109 1,664 1,664 219 0.0100
2021-07-22 2021-06-30 13F DIAMONDBACK ENERGY INC COM Stock 25278X109 0 -832 -100.00 0 -100.00
2021-04-12 2021-03-31 13F DIAMONDBACK ENERGY INC COM Stock 25278X109 832 828 20,700.00 61 0.0028
2021-02-11 2020-12-31 13F DIAMONDBACK ENERGY INC COM Stock 25278X109 4 0 0.00 0 0.0000
2020-10-28 2020-09-30 13F DIAMONDBACK ENERGY INC COM Stock 25278X109 4 -237 -98.34 0 -100.00
2020-07-20 2020-06-30 13F DIAMONDBACK ENERGY INC COM Stock 25278X109 241 89 58.55 10 66.67 0.0009
2020-04-13 2020-03-31 13F DIAMONDBACK ENERGY INC COM Stock 25278X109 152 74 94.87 6 -14.29 0.0006
2020-01-24 2019-12-31 13F DIAMONDBACK ENERGY INC COM Stock 25278X109 78 6 8.33 7 16.67 0.0007
2019-10-15 2019-09-30 13F DIAMONDBACK ENERGY INC COM Stock 25278X109 72 -751 -91.25 6 -93.33 0.0007
2019-07-10 2019-06-30 13F DIAMONDBACK ENERGY INC COM Stock 25278X109 823 751 1,043.06 90 1,185.71 0.0103
2019-04-12 2019-03-31 13F DIAMONDBACK ENERGY INC COM Stock 25278X109 72 19 35.85 7 40.00 0.0009
2019-01-30 2018-12-31 13F DIAMONDBACK ENERGY INC COM Stock 25278X109 53 11 26.19 5 0.00 0.0007
2018-11-01 2018-09-30 13F DIAMONDBACK ENERGY INC COM Stock 25278X109 42 7 20.00 5 0.00 0.0007
2018-08-14 2018-06-30 13F DIAMONDBACK ENERGY INC COM Stock 25278X109 35 -74 -67.89 5 -64.29 0.0007
2018-04-12 2018-03-31 13F DIAMONDBACK ENERGY INC COM Stock 25278X109 109 75 220.59 14 250.00 0.0022
2018-02-09 2017-12-31 13F DIAMONDBACK ENERGY INC COM Stock 25278X109 34 1 3.03 4 33.33 0.0007
2017-11-15 2017-09-30 13F/A-1 DIAMONDBACK ENERGY INC COM Stock 25278X109 33 33 3 0.0007
2017-11-14 2017-09-30 13F DIAMONDBACK ENERGY INC COM Stock 25278X109 33 3
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.