Diamondback Energy, Inc.
US ˙ NasdaqGS ˙ US25278X1090

SecurityFANG / Diamondback Energy, Inc.
InstitutionAmericana Partners, LLC
Latest Disclosed Ownership7,829 shares
Latest Disclosed Value $ 1,548,513
Americana Partners, LLC reports 50.15% decrease in ownership of FANG / Diamondback Energy, Inc.

On May 12, 2026 - Americana Partners, LLC filed a 13F-HR form disclosing ownership of 7,829 shares of Diamondback Energy, Inc. (US:FANG) valued at $1,548,498 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 15,706 shares of Diamondback Energy, Inc.. This represents a change in shares of -50.15% during the quarter. The current value of the position is $1,508,022 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)
2026-05-12 2026-03-31 13F DIAMONDBACK ENERGY COM 25278X109 7,829 -7,877 -50.15 1,549 -34.43 0.0402
2026-02-06 2025-12-31 13F DIAMONDBACK ENERGY COM 25278X109 15,706 0 0.00 2,361 5.07 0.0648
2025-10-29 2025-09-30 13F DIAMONDBACK ENERGY COM 25278X109 15,706 706 4.71 2,248 9.02 0.0676
2025-08-07 2025-06-30 13F DIAMONDBACK ENERGY COM 25278X109 15,000 60 0.40 2,061 -13.69 0.0710
2025-05-12 2025-03-31 13F DIAMONDBACK ENERGY COM 25278X109 14,940 1,090 7.87 2,389 5.24 0.0928
2025-01-31 2024-12-31 13F DIAMONDBACK ENERGY COM 25278X109 13,850 714 5.44 2,269 0.22 0.0926
2024-10-28 2024-09-30 13F DIAMONDBACK ENERGY COM 25278X109 13,136 199 1.54 2,265 -12.55 0.1540
2024-07-30 2024-06-30 13F DIAMONDBACK ENERGY COM 25278X109 12,937 -908 -6.56 2,590 -5.61 0.2032
2024-05-07 2024-03-31 13F DIAMONDBACK ENERGY COM 25278X109 13,845 11,107 405.66 2,744 546.93 0.2288
2024-01-25 2023-12-31 13F DIAMONDBACK ENERGY COM 25278X109 2,738 936 51.94 425 51.97 0.0405
2023-11-07 2023-09-30 13F DIAMONDBACK ENERGY COM 25278X109 1,802 1,802 279 0.0302
2022-05-06 2022-03-31 13F Diamondback Energy COM 25278X109 0 -3,115 -100.00 0 -100.00
2022-01-28 2021-12-31 13F Diamondback Energy COM 25278X109 3,115 -3,877 -55.45 335 -49.32 0.0609
2021-11-08 2021-09-30 13F Diamondback Energy COM 25278X109 6,992 0 0.00 661 0.76 0.1597
2021-08-04 2021-06-30 13F Diamondback Energy COM 25278X109 6,992 2,905 71.08 656 118.67 0.3331
2021-05-14 2021-03-31 13F Diamondback Energy COM 25278X109 4,087 4,087 300 0.1854
2020-05-12 2020-03-31 13F Diamondback Energy COM 25278X109 0 -968 -100.00 0 -100.00
2020-02-13 2019-12-31 13F Diamondback Energy COM 25278X109 968 968 89 0.0498
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.