Diamondback Energy, Inc.
US ˙ NasdaqGS ˙ US25278X1090

SecurityFANG / Diamondback Energy, Inc.
InstitutionTocqueville Asset Management L.p.
Latest Disclosed Ownership179,012 shares
Latest Disclosed Value $ 35,406,783
Tocqueville Asset Management L.p. reports 0.06% decrease in ownership of FANG / Diamondback Energy, Inc.

On May 12, 2026 - Tocqueville Asset Management L.p. filed a 13F-HR form disclosing ownership of 179,012 shares of Diamondback Energy, Inc. (US:FANG) valued at $35,406,783 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 179,117 shares of Diamondback Energy, Inc.. This represents a change in shares of -0.06% during the quarter. The current value of the position is $34,481,291 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 179,012 -105 -0.06 35,407 31.49 0.5250
2026-02-12 2025-12-31 13F DIAMONDBACK ENERGY COM 25278X109 179,117 -9,608 -5.09 26,927 -0.30 0.3928
2025-11-13 2025-09-30 13F DIAMONDBACK ENERGY COM 25278X109 188,725 -1,548 -0.81 27,007 3.30 0.3926
2025-08-12 2025-06-30 13F DIAMONDBACK ENERGY COM 25278X109 190,273 -47,038 -19.82 26,144 -31.10 0.3980
2025-05-13 2025-03-31 13F DIAMONDBACK ENERGY COM 25278X109 237,311 399 0.17 37,941 -2.25 0.6196
2025-02-10 2024-12-31 13F DIAMONDBACK ENERGY COM 25278X109 236,912 9,500 4.18 38,813 -1.00 0.6087
2024-11-08 2024-09-30 13F DIAMONDBACK ENERGY COM 25278X109 227,412 -2,190 -0.95 39,206 -14.70 0.6158
2024-08-12 2024-06-30 13F DIAMONDBACK ENERGY COM 25278X109 229,602 -7,581 -3.20 45,964 -2.21 0.7587
2024-05-09 2024-03-31 13F DIAMONDBACK ENERGY COM 25278X109 237,183 37,878 19.01 47,003 52.07 0.7679
2024-02-12 2023-12-31 13F DIAMONDBACK ENERGY COM 25278X109 199,305 -246 -0.12 30,908 0.01 0.5603
2023-11-09 2023-09-30 13F DIAMONDBACK ENERGY COM 25278X109 199,551 25,640 14.74 30,906 35.29 0.5870
2023-08-11 2023-06-30 13F DIAMONDBACK ENERGY COM 25278X109 173,911 75 0.04 22,845 -2.78 0.4091
2023-05-10 2023-03-31 13F DIAMONDBACK ENERGY COM 25278X109 173,836 -1,000 -0.57 23,497 -1.74 0.4439
2023-02-09 2022-12-31 13F DIAMONDBACK ENERGY COM 25278X109 174,836 0 0.00 23,914 13.55 0.4542
2022-11-10 2022-09-30 13F DIAMONDBACK ENERGY COM 25278X109 174,836 0 0.00 21,061 -0.57 0.4293
2022-08-12 2022-06-30 13F DIAMONDBACK ENERGY COM 25278X109 174,836 -464 -0.26 21,181 -11.86 0.3873
2022-05-16 2022-03-31 13F Diamondback Energy Inc Com COM 25278X109 175,300 0 0.00 24,030 27.10 0.3630
2022-02-14 2021-12-31 13F DIAMONDBACK ENERGY COM 25278X109 175,300 -284 -0.16 18,906 13.73 0.2600
2021-11-15 2021-09-30 13F DIAMONDBACK ENERGY COM 25278X109 175,584 -279 -0.16 16,623 0.67 0.2463
2021-08-16 2021-06-30 13F DIAMONDBACK ENERGY COM 25278X109 175,863 -1,366 -0.77 16,512 26.77 0.2385
2021-05-17 2021-03-31 13F DIAMONDBACK ENERGY COM 25278X109 177,229 11,729 7.09 13,025 62.61 0.2004
2021-02-16 2020-12-31 13F DIAMONDBACK ENERGY COM 25278X109 165,500 165,500 8,010 0.1337
2017-04-28 2017-03-31 13F Diamondback Energy COM 25278X109 0 -5,000 -100.00 0 -100.00
2017-01-30 2016-12-31 13F Diamondback Energy COM 25278X109 5,000 5,000 0.00 505 0.0065
2014-10-30 2014-09-30 13F Diamondback Energy COM 25278X109 0 -1,000 -100.00 0 -100.00
2014-09-18 2014-06-30 13F/A-1 Diamondback Energy COM 25278X109 1,000 1,000 89 0.0009
2014-07-30 2014-06-30 13F Diamondback Energy COM 25278X109 1,000 89 0.0009
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.