Diamondback Energy, Inc.
US ˙ NasdaqGS ˙ US25278X1090

SecurityFANG / Diamondback Energy, Inc.
InstitutionSmartleaf Asset Management LLC
Latest Disclosed Ownership4,879 shares
Latest Disclosed Value $ 969,274
Smartleaf Asset Management LLC reports 15.95% increase in ownership of FANG / Diamondback Energy, Inc.

On May 15, 2026 - Smartleaf Asset Management LLC filed a 13F-HR form disclosing ownership of 4,879 shares of Diamondback Energy, Inc. (US:FANG) valued at $965,017 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 4,208 shares of Diamondback Energy, Inc.. This represents a change in shares of 15.95% during the quarter. The current value of the position is $939,793 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 4,879 671 15.95 969 52.36 0.0350
2026-02-13 2025-12-31 13F DIAMONDBACK ENERGY COM 25278X109 4,208 439 11.65 637 17.56 0.0241
2025-11-05 2025-09-30 13F DIAMONDBACK ENERGY COM 25278X109 3,769 913 31.97 541 35.59 0.0335
2025-08-14 2025-06-30 13F DIAMONDBACK ENERGY COM 25278X109 2,856 -103 -3.48 399 -14.38 0.0352
2025-05-14 2025-03-31 13F DIAMONDBACK ENERGY COM 25278X109 2,959 207 7.52 466 5.19 0.0450
2025-02-05 2024-12-31 13F DIAMONDBACK ENERGY COM 25278X109 2,752 737 36.58 443 29.15 0.0452
2024-11-13 2024-09-30 13F DIAMONDBACK ENERGY COM 25278X109 2,015 1,279 173.78 344 134.93 0.0417
2024-10-08 2024-06-30 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 736 226 44.31 147 46.00 0.0240
2024-08-13 2024-06-30 13F DIAMONDBACK ENERGY COM 25278X109 736 226 147 0.0240
2024-10-07 2024-03-31 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 510 296 138.32 100 203.03 0.0194
2024-05-03 2024-03-31 13F DIAMONDBACK ENERGY COM 25278X109 510 296 31 0.0075
2024-02-12 2023-12-31 13F DIAMONDBACK ENERGY COM 25278X109 214 214 33 0.0089
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.