다이아몬드백 에너지, Inc.
DE ˙ XTRA ˙ US25278X1090
€175.34 ↑1.92 (1.11%)
2026-06-04
주가
SecurityDE:7DB / Diamondback Energy, Inc.
InstitutionStifel Financial Corp
Latest Disclosed Ownership189,928 shares
Latest Disclosed Value $ 37,565,580
Stifel Financial Corp reports 27.26% decrease in ownership of 7DB / Diamondback Energy, Inc.

On May 12, 2026 - Stifel Financial Corp filed a 13F-HR form disclosing ownership of 189,928 shares of Diamondback Energy, Inc. (DE:7DB) valued at $32,887,932 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 261,091 shares of Diamondback Energy, Inc.. This represents a change in shares of -27.26% during the quarter. The current value of the position is $33,301,976 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 189,928 -71,163 -27.26 37,566 -4.30 0.0081
2026-02-13 2025-12-31 13F DIAMONDBACK ENERGY COM 25278X109 261,091 -6,300 -2.36 39,252 2.58 0.0353
2025-11-12 2025-09-30 13F DIAMONDBACK ENERGY COM 25278X109 267,391 1,631 0.61 38,266 4.78 0.0349
2025-08-14 2025-06-30 13F DIAMONDBACK ENERGY COM 25278X109 265,760 4,352 1.66 36,518 -12.63 0.0355
2025-05-14 2025-03-31 13F DIAMONDBACK ENERGY COM 25278X109 261,408 1,101 0.42 41,797 -2.00 0.0444
2025-02-13 2024-12-31 13F DIAMONDBACK ENERGY COM 25278X109 260,307 48,991 23.18 42,650 17.06 0.0444
2024-11-14 2024-09-30 13F DIAMONDBACK ENERGY COM 25278X109 211,316 28,124 15.35 36,434 -0.67 0.0382
2024-08-13 2024-06-30 13F DIAMONDBACK ENERGY COM 25278X109 183,192 -30,803 -14.39 36,679 -13.52 0.0413
2024-05-14 2024-03-31 13F DIAMONDBACK ENERGY COM 25278X109 213,995 8,859 4.32 42,414 33.31 0.0483
2024-02-12 2023-12-31 13F DIAMONDBACK ENERGY COM 25278X109 205,136 24,415 13.51 31,816 13.66 0.0400
2023-11-13 2023-09-30 13F DIAMONDBACK ENERGY COM 25278X109 180,721 23,485 14.94 27,991 35.52 0.0393
2023-08-14 2023-06-30 13F DIAMONDBACK ENERGY COM 25278X109 157,236 34,328 27.93 20,655 24.32 0.0283
2023-05-12 2023-03-31 13F DIAMONDBACK ENERGY COM 25278X109 122,908 11,700 10.52 16,613 9.22 0.0238
2023-02-13 2022-12-31 13F DIAMONDBACK ENERGY COM 25278X109 111,208 -9,283 -7.70 15,211 4.80 0.0228
2022-11-14 2022-09-30 13F DIAMONDBACK ENERGY COM 25278X109 120,491 48,569 67.53 14,515 66.59 0.0238
2022-08-15 2022-06-30 13F DIAMONDBACK ENERGY COM 25278X109 71,922 -932 -1.28 8,713 -12.77 0.0136
2022-05-13 2022-03-31 13F DIAMONDBACK ENERGY COM 25278X109 72,854 -14,174 -16.29 9,988 6.41 0.0136
2022-02-14 2021-12-31 13F DIAMONDBACK ENERGY COM 25278X109 87,028 -39,616 -31.28 9,386 -21.71 0.0124
2021-11-15 2021-09-30 13F DIAMONDBACK ENERGY COM 25278X109 126,644 -4,362 -3.33 11,989 -2.52 0.0176
2021-08-13 2021-06-30 13F DIAMONDBACK ENERGY COM 25278X109 131,006 -14,720 -10.10 12,299 14.85 0.0184
2021-05-14 2021-03-31 13F DIAMONDBACK ENERGY COM 25278X109 145,726 55,624 61.73 10,709 145.51 0.0177
2021-02-12 2020-12-31 13F DIAMONDBACK ENERGY COM 25278X109 90,102 55,282 158.77 4,362 315.82 0.0078
2020-11-16 2020-09-30 13F DIAMONDBACK ENERGY COM 25278X109 34,820 4,104 13.36 1,049 -18.37 0.0022
2020-08-14 2020-06-30 13F DIAMONDBACK ENERGY COM 25278X109 30,716 2,426 8.58 1,285 73.18 0.0030
2020-05-14 2020-03-31 13F DIAMONDBACK ENERGY COM 25278X109 28,290 -116,580 -80.47 742 -94.47 0.0020
2020-02-13 2019-12-31 13F DIAMONDBACK ENERGY COM 25278X109 144,870 -6,230 -4.12 13,414 -1.03 0.0279
2019-11-19 2019-09-30 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 151,100 12,937 9.36 13,554 -9.96 0.0346
2019-11-13 2019-09-30 13F DIAMONDBACK ENERGY COM 25278X109 151,250 13,087 13,568 7,605.5441
2019-08-14 2019-06-30 13F DIAMONDBACK ENERGY COM 25278X109 138,163 75,786 121.50 15,053 137.73 0.0388
2019-05-14 2019-03-31 13F DIAMONDBACK ENERGY COM 25278X109 62,377 -349 -0.56 6,332 8.70 0.0179
2019-02-13 2018-12-31 13F DIAMONDBACK ENERGY COM 25278X109 62,726 -2,371 -3.64 5,825 -33.91 0.0188
2018-11-13 2018-09-30 13F DIAMONDBACK ENERGY COM 25278X109 65,097 5,670 9.54 8,814 12.74 0.0253
2018-08-14 2018-06-30 13F DIAMONDBACK ENERGY COM 25278X109 59,427 -10,362 -14.85 7,818 -11.55 0.0240
2018-05-11 2018-03-31 13F DIAMONDBACK ENERGY COM 25278X109 69,789 29,633 73.79 8,839 74.06 0.0279
2018-02-14 2017-12-31 13F DIAMONDBACK ENERGY COM 25278X109 40,156 -1,275 -3.08 5,078 25.01 0.0161
2017-11-13 2017-09-30 13F DIAMONDBACK ENERGY COM 25278X109 41,431 7,221 21.11 4,062 33.79 0.0141
2017-08-14 2017-06-30 13F DIAMONDBACK ENERGY COM 25278X109 34,210 1,897 5.87 3,036 -9.07 0.0113
2017-05-10 2017-03-31 13F DIAMONDBACK ENERGY COM 25278X109 32,313 17,277 114.90 3,339 120.11 0.0129
2017-02-16 2016-12-31 13F DIAMONDBACK ENERGY COM 25278X109 15,036 3,811 33.95 1,517 40.07 0.0064
2016-11-15 2016-09-30 13F DIAMONDBACK ENERGY COM 25278X109 11,225 -1,736 -13.39 1,083 -8.53 0.0049
2016-08-17 2016-06-30 13F DIAMONDBACK ENERGY COM 25278X109 12,961 -52,068 -80.07 1,184 -76.41 0.0055
2016-05-16 2016-03-31 13F DIAMONDBACK ENERGY COM 25278X109 65,029 52,984 439.88 5,019 522.70 0.0267
2016-03-21 2015-12-31 13F/A-2 DIAMONDBACK ENERGY COM 25278X109 12,045 3,405 39.41 806 44.44 0.0042
2016-02-26 2015-12-31 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 12,045 0 806 0.0042
2016-02-16 2015-12-31 13F DIAMONDBACK ENERGY COM 25278X109 12,045 9,004
2015-11-16 2015-09-30 13F DIAMONDBACK ENERGY COM 25278X109 8,640 -26,426 -75.36 558 -78.90 0.0031
2015-08-17 2015-06-30 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 35,066 35,066 0.00 2,644 0.0137
2015-08-17 2015-06-30 13F DIAMONDBACK ENERGY COM 25278X109 35,066 2,644
2015-05-14 2015-03-31 13F DIAMONDBACK ENERGY COM 25278X109 0 -48,001 -100.00 0 -100.00
2015-02-13 2014-12-31 13F DIAMONDBACK ENERGY COM 25278X109 48,001 -1,625 -3.27 2,869 -22.69 0.0159
2014-11-13 2014-09-30 13F DIAMONDBACK ENERGY COM 25278X109 49,626 49,626 3,711 0.0326
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.