Diamondback Energy, Inc.
US ˙ NasdaqGS ˙ US25278X1090

SecurityFANG / Diamondback Energy, Inc.
InstitutionLazard Asset Management Llc
Latest Disclosed Ownership4,676 shares
Latest Disclosed Value $ 924,866
Lazard Asset Management Llc reports 4.88% decrease in ownership of FANG / Diamondback Energy, Inc.

On May 15, 2026 - Lazard Asset Management Llc filed a 13F-HR form disclosing ownership of 4,676 shares of Diamondback Energy, Inc. (US:FANG) valued at $924,866 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 4,916 shares of Diamondback Energy, Inc.. This represents a change in shares of -4.88% during the quarter. The current value of the position is $900,691 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 4,676 -240 -4.88 925 25.03 0.0015
2026-02-17 2025-12-31 13F DIAMONDBACK ENERGY COM 25278X109 4,916 -693 -12.36 739 -7.86 0.0013
2025-11-14 2025-09-30 13F DIAMONDBACK ENERGY COM 25278X109 5,609 -695 -11.02 803 0.0011
2025-08-14 2025-06-30 13F DIAMONDBACK ENE Common Stock 25278X109 6,304 -190 -2.93 1 -100.00 0.0012
2025-05-15 2025-03-31 13F DIAMONDBACK ENE Common Stock 25278X109 6,494 -1,009 -13.45 1 0.00 0.0016
2025-02-14 2024-12-31 13F DIAMONDBACK ENE Common Stock 25278X109 7,503 -7,499 -49.99 1 -50.00 0.0018
2024-11-14 2024-09-30 13F DIAMONDBACK ENE Common Stock 25278X109 15,002 11,775 364.89 3 0.0035
2024-08-14 2024-06-30 13F DIAMONDBACK ENE Common Stock 25278X109 3,227 -1,357 -29.60 1 0.0008
2024-07-09 2024-03-31 13F/A-1 DIAMONDBACK ENE Common Stock 25278X109 4,584 204 4.66 1 0.0011
2024-05-14 2024-03-31 13F DIAMONDBACK ENE Common Stock 25278X109 4,584 204 1 0.0011
2024-02-14 2023-12-31 13F DIAMONDBACK ENE Common Stock 25278X109 4,380 619 16.46 1 0.0009
2023-11-14 2023-09-30 13F DIAMONDBACK ENE Common Stock 25278X109 3,761 -1,175 -23.80 1 0.0008
2023-08-15 2023-06-30 13F DIAMONDBACK ENE Common Stock 25278X109 4,936 -29,356 -85.61 1 -100.00 0.0008
2023-05-15 2023-03-31 13F DIAMONDBACK ENE Common Stock 25278X109 34,292 -3,265 -8.69 5 -99.92 0.0061
2023-02-15 2022-12-31 13F DIAMONDBACK ENE Common Stock 25278X109 37,557 -45,060 -54.54 5,136 -48.39 0.0071
2022-11-14 2022-09-30 13F DIAMONDBACK ENE Common Stock 25278X109 82,617 -20,761 -20.08 9,952 -20.53 0.0145
2022-08-09 2022-06-30 13F DIAMONDBACK ENE Common Stock 25278X109 103,378 37,367 56.61 12,523 38.41 0.0169
2022-05-13 2022-03-31 13F DIAMONDBACK ENE Common Stock 25278X109 66,011 -85,827 -56.53 9,048 -44.75 0.0105
2022-02-09 2021-12-31 13F DIAMONDBACK ENE Common Stock 25278X109 151,838 -125,884 -45.33 16,375 -37.72 0.0174
2021-11-15 2021-09-30 13F DIAMONDBACK ENE Common Stock 25278X109 277,722 -54,449 -16.39 26,291 -15.70 0.0297
2021-08-12 2021-06-30 13F DIAMONDBACK ENE Common Stock 25278X109 332,171 -26,144 -7.30 31,187 18.44 0.0350
2021-05-14 2021-03-31 13F DIAMONDBACK ENE Common Stock 25278X109 358,315 357,847 76,463.03 26,332 119,590.91 0.0319
2021-02-11 2020-12-31 13F DIAMONDBACK ENE Common Stock 25278X109 468 74 18.78 22 100.00 0.0000
2020-11-13 2020-09-30 13F DIAMONDBACK ENE Common Stock 25278X109 394 -125,663 -99.69 11 -99.79 0.0000
2020-08-13 2020-06-30 13F DIAMONDBACK ENE Common Stock 25278X109 126,057 126,017 315,042.50 5,271 527,000.00 0.0081
2020-05-14 2020-03-31 13F DIAMONDBACK ENE Common Stock 25278X109 40 16 66.67 1 -50.00 0.0000
2020-02-13 2019-12-31 13F DIAMONDBACK ENE Common Stock 25278X109 24 24 2 0.0000
2019-08-14 2019-06-30 13F DIAMONDBACK ENE Common Stock 25278X109 0 -74,610 -100.00 0 -100.00
2019-08-28 2019-03-31 13F/A-1 DIAMONDBACK ENE Common Stock 25278X109 74,610 -16,490 -18.10 7,575 -10.29 0.0124
2019-05-13 2019-03-31 13F DIAMONDBACK ENE Common Stock 25278X109 74,610 -16,490 7,575
2019-08-28 2018-12-31 13F/A-1 DIAMONDBACK ENE Common Stock 25278X109 91,100 -3,304 -3.50 8,444 -33.83 0.0155
2019-02-13 2018-12-31 13F DIAMONDBACK ENE Common Stock 25278X109 91,100 -3,304 8,444
2019-08-30 2018-09-30 13F/A-1 DIAMONDBACK ENE Common Stock 25278X109 94,404 10,140 12.03 12,762 15.12 0.0206
2018-11-13 2018-09-30 13F DIAMONDBACK ENE Common Stock 25278X109 94,404 10,140 12,762
2019-08-30 2018-06-30 13F/A-1 DIAMONDBACK ENE Common Stock 25278X109 84,264 83,141 7,403.47 11,086 7,707.04 0.0193
2018-08-13 2018-06-30 13F DIAMONDBACK ENE Common Stock 25278X109 84,264 83,141 11,086
2019-08-28 2018-03-31 13F/A-1 DIAMONDBACK ENE Common Stock 25278X109 1,123 951 552.91 142 576.19 0.0002
2018-05-14 2018-03-31 13F DIAMONDBACK ENE Common Stock 25278X109 1,123 951 142
2019-08-28 2017-12-31 13F/A-1 DIAMONDBACK ENE Common Stock 25278X109 172 -25 -12.69 21 10.53 0.0000
2018-02-13 2017-12-31 13F DIAMONDBACK ENE Common Stock 25278X109 172 -25 21
2019-08-19 2017-09-30 13F/A-1 DIAMONDBACK ENE Common Stock 25278X109 197 0 0.00 19 11.76 0.0000
2017-11-13 2017-09-30 13F DIAMONDBACK ENE Common Stock 25278X109 197 0 19
2019-08-19 2017-06-30 13F/A-1 DIAMONDBACK ENE Common Stock 25278X109 197 0 0.00 17 -15.00 0.0000
2017-08-11 2017-06-30 13F DIAMONDBACK ENE Common Stock 25278X109 197 0 17
2019-08-13 2017-03-31 13F/A-1 DIAMONDBACK ENE Common Stock 25278X109 197 -47 -19.26 20 -16.67 0.0000
2017-05-12 2017-03-31 13F DIAMONDBACK ENE Common Stock 25278X109 197 -47 20
2019-07-30 2016-12-31 13F/A-1 DIAMONDBACK ENE Common Stock 25278X109 244 244 24 0.0000
2017-02-13 2016-12-31 13F DIAMONDBACK ENE Common Stock 25278X109 244 244 24
2019-07-25 2016-03-31 13F/A-1 DIAMONDBACK ENE Common Stock 25278X109 0 -2,315 -100.00 0 -100.00
2019-07-24 2015-12-31 13F/A-1 DIAMONDBACK ENE Common Stock 25278X109 2,315 1,230 113.36 154 120.00 0.0004
2016-02-12 2015-12-31 13F DIAMONDBACK ENE Common Stock 25278X109 2,315 1,230 154
2019-07-15 2015-09-30 13F/A-1 DIAMONDBACK ENE Common Stock 25278X109 1,085 100 10.15 70 -5.41 0.0002
2015-11-13 2015-09-30 13F DIAMONDBACK ENE Common Stock 25278X109 1,085 100 70
2019-07-08 2015-06-30 13F/A-1 DIAMONDBACK ENE Common Stock 25278X109 985 95 10.67 74 8.82 0.0002
2015-08-13 2015-06-30 13F DIAMONDBACK ENE Common Stock 25278X109 985 95 74
2015-06-09 2015-03-31 13F/A-1 DIAMONDBACK ENE Common Stock 25278X109 890 790 790.00 68 1,260.00 0.0001
2015-05-15 2015-03-31 13F DIAMONDBACK ENE Common Stock 25278X109 890 68
2019-08-29 2014-12-31 13F/A-3 DIAMONDBACK ENE Common Stock 25278X109 100 -80 -44.44 5 -61.54 0.0000
2015-05-20 2014-12-31 13F/A-1 DIAMONDBACK ENE Common Stock 25278X109 100 0 5 0.0000
2015-06-09 2014-12-31 13F/A-2 DIAMONDBACK ENE Common Stock 25278X109 100 0 5 0.0000
2015-02-12 2014-12-31 13F DIAMONDBACK ENE Common Stock 25278X109 100 5
2014-11-07 2014-09-30 13F DIAMONDBACK ENE Common Stock 25278X109 180 180 -99.45 13 -98.82 0.0000
2014-01-13 2013-09-30 13F/A-1 DIAMONDBACK ENE Common Stock 25278X109 0 -33,025 -100.00 0 -100.00
2013-08-13 2013-06-30 13F DIAMONDBACK ENE Common Stock 25278X109 33,025 33,025 1,100 0.0026
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.