다이아몬드백 에너지, Inc.
DE ˙ XTRA ˙ US25278X1090
€175.34 ↑1.92 (1.11%)
2026-06-04
주가
SecurityDE:7DB / Diamondback Energy, Inc.
InstitutionBoston Partners
Latest Disclosed Ownership1,584,110 shares
Ownership 1.61%
Boston Partners ownership in 7DB / Diamondback Energy, Inc.

2018-08-08 - Boston Partners has filed an SC 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 1,584,110 shares of Diamondback Energy, Inc. (DE:7DB). This represents 1.61 percent ownership of the company. In their previous filing dated 2018-02-12 , Boston Partners had reported owning 7,051,477 shares, indicating a decrease of -77.54 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date		Effective
Date		Form Prev
Shares		 Latest
Shares		 ΔShares
(Percent)		 Ownership
(Percent)		 ΔOwnership
(Percent)
2018-08-08 2018-08-08 13G/A 7,051,477 1,584,110 -77.54 1.61 -77.58
2018-02-12 2018-02-12 13G/A 9,412,632 7,051,477 -25.08 7.18 -32.46
2017-02-10 2017-02-10 13G/A 6,526,082 9,412,632 44.23 10.63 8.69
2016-02-09 2016-02-09 13G/A 6,526,082 7,514,298 15.14 10.61
2016-02-09 2016-02-09 13G 6,526,082 9.78

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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)
2026-05-11 2026-03-31 13F DIAMONDBACK ENERGY COM 25278X109 5,766,947 190,446 3.42 1,139,766 35.93 1.1939
2026-02-13 2025-12-31 13F DIAMONDBACK ENERGY COM 25278X109 5,576,501 -157,037 -2.74 838,488 2.05 0.8682
2025-11-13 2025-09-30 13F DIAMONDBACK ENERGY COM 25278X109 5,733,538 163,548 2.94 821,649 7.14 0.8436
2025-08-12 2025-06-30 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 5,569,990 151,150 2.79 766,914 -11.03 0.8517
2025-08-07 2025-06-30 13F DIAMONDBACK ENERGY COM 25278X109 5,562,216 143,376 765,846 0.3516
2025-05-13 2025-03-31 13F DIAMONDBACK ENERGY COM 25278X109 5,418,840 249,098 4.82 861,961 1.50 1.0424
2025-02-11 2024-12-31 13F DIAMONDBACK ENERGY COM 25278X109 5,169,742 571,820 12.44 849,202 6.93 1.0329
2024-11-12 2024-09-30 13F DIAMONDBACK ENERGY COM 25278X109 4,597,922 1,167,940 34.05 794,195 15.59 0.9373
2024-08-14 2024-06-30 13F DIAMONDBACK ENERGY COM 25278X109 3,429,982 699,500 25.62 687,078 26.80 0.8535
2024-05-28 2024-03-31 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 2,730,482 1,916,900 235.61 541,844 329.48 0.6454
2024-05-13 2024-03-31 13F DIAMONDBACK ENERGY COM 25278X109 2,730,482 1,916,900 541,844 0.2681
2024-02-07 2023-12-31 13F DIAMONDBACK ENERGY COM 25278X109 813,582 -546,768 -40.19 126,164 -40.13 0.1671
2023-11-08 2023-09-30 13F DIAMONDBACK ENERGY COM 25278X109 1,360,350 -19,563 -1.42 210,721 16.18 0.2917
2023-08-10 2023-06-30 13F DIAMONDBACK ENERGY COM 25278X109 1,379,913 -363,775 -20.86 181,366 -23.04 0.2441
2023-05-09 2023-03-31 13F DIAMONDBACK ENERGY COM 25278X109 1,743,688 -310,875 -15.13 235,677 -16.09 0.3240
2023-02-08 2022-12-31 13F DIAMONDBACK ENERGY COM 25278X109 2,054,563 -1,328,988 -39.28 280,877 -31.27 0.3800
2022-11-09 2022-09-30 13F DIAMONDBACK ENERGY COM 25278X109 3,383,551 46,024 1.38 408,686 1.09 0.5981
2022-08-10 2022-06-30 13F DIAMONDBACK ENERGY COM 25278X109 3,337,527 -617,547 -15.61 404,280 -25.43 0.5650
2022-05-10 2022-03-31 13F DIAMONDBACK ENERGY COM 25278X109 3,955,074 -648,674 -14.09 542,160 9.15 0.6568
2022-02-04 2021-12-31 13F DIAMONDBACK ENERGY COM 25278X109 4,603,748 -209,791 -4.36 496,693 8.97 0.5983
2021-11-05 2021-09-30 13F DIAMONDBACK ENERGY COM 25278X109 4,813,539 625,959 14.95 455,818 15.95 0.5775
2021-08-12 2021-06-30 13F DIAMONDBACK ENERGY COM 25278X109 4,187,580 390,610 10.29 393,115 40.87 0.5013
2021-05-10 2021-03-31 13F DIAMONDBACK ENERGY COM 25278X109 3,796,970 1,174,775 44.80 279,066 119.88 0.3742
2021-02-10 2020-12-31 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 2,622,195 332,086 14.50 126,915 83.99 0.1974
2021-02-04 2020-12-31 13F DIAMONDBACK ENERGY COM 25278X109 2,622,195 332,086 126,915 76,141.4564
2020-11-13 2020-09-30 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 2,290,109 832,808 57.15 68,978 13.18 0.1256
2020-11-09 2020-09-30 13F DIAMONDBACK ENERGY COM 25278X109 1,457,301 0 60,943 44,739.4217
2020-08-12 2020-06-30 13F DIAMONDBACK ENERGY COM 25278X109 1,457,301 160,820 12.40 60,943 79.46 0.1119
2020-05-13 2020-03-31 13F DIAMONDBACK ENERGY COM 25278X109 1,296,481 -1,687,060 -56.55 33,959 -87.74 0.0674
2020-02-06 2019-12-31 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 2,983,541 450,265 17.77 277,049 21.65 0.3664
2020-02-05 2019-12-31 13F DIAMONDBACK ENERGY COM 25278X109 2,983,541 450,265 277,049 155,765.0395
2019-11-20 2019-09-30 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 2,533,276 -381,348 -13.08 227,737 -28.29 0.3084
2019-11-08 2019-09-30 13F DIAMONDBACK ENERGY COM 25278X109 2,908,550 -6,074 316,512 0.4186
2019-08-26 2019-06-30 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 2,914,624 -1,076,320 -26.97 317,580 -21.62 0.4165
2019-08-09 2019-06-30 13F DIAMONDBACK ENERGY COM 25278X109 2,914,670 -1,076,274 317,585
2019-05-13 2019-03-31 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 3,990,944 566,290 16.54 405,201 27.64 0.5369
2019-05-03 2019-03-31 13F DIAMONDBACK ENERGY COM 25278X109 3,990,944 566,290 405,201
2019-02-07 2018-12-31 13F DIAMONDBACK ENERGY COM 25278X109 3,424,654 1,973,018 135.92 317,465 61.77 0.4562
2018-11-14 2018-09-30 13F DIAMONDBACK ENERGY COM 25278X109 1,451,636 -1,134,761 -43.87 196,247 -42.33 0.2280
2018-08-03 2018-06-30 13F DIAMONDBACK ENERGY COM 25278X109 2,586,397 -3,518,403 -57.63 340,292 -55.94 0.4078
2018-05-04 2018-03-31 13F DIAMONDBACK ENERGY COM 25278X109 6,104,800 -878,437 -12.58 772,379 -12.39 0.9313
2018-02-14 2017-12-31 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 6,983,237 -891,192 -11.32 881,634 14.29 1.0386
2018-02-01 2017-12-31 13F DIAMONDBACK ENERGY COM 25278X109 6,983,237 -891,192 881,634
2017-11-02 2017-09-30 13F DIAMONDBACK ENERGY COM 25278X109 7,874,429 1,208,864 18.14 771,379 30.31 0.9531
2017-08-02 2017-06-30 13F DIAMONDBACK ENERGY COM 25278X109 6,665,565 -382,884 -5.43 591,968 -19.02 0.7528
2017-05-03 2017-03-31 13F DIAMONDBACK ENERGY COM 25278X109 7,048,449 -2,259,040 -24.27 731,030 -22.28 0.9335
2017-02-06 2016-12-31 13F DIAMONDBACK ENERGY COM 25278X109 9,307,489 1,570,622 20.30 940,616 25.93 1.2368
2016-11-09 2016-09-30 13F DIAMONDBACK ENERGY COM 25278X109 7,736,867 598,307 8.38 746,917 14.71 1.0444
2016-08-05 2016-06-30 13F DIAMONDBACK ENERGY COM 25278X109 7,138,560 303,405 4.44 651,109 23.42 0.9408
2016-05-12 2016-03-31 13F DIAMONDBACK ENERGY COM 25278X109 6,835,155 392,832 6.10 527,538 22.40 0.7770
2016-02-08 2015-12-31 13F DIAMONDBACK ENERGY COM 25278X109 6,442,323 2,685,427 71.48 430,991 77.58 0.6174
2015-11-10 2015-09-30 13F DIAMONDBACK ENERGY COM 25278X109 3,756,896 2,217,655 144.07 242,696 109.17 0.3699
2015-08-10 2015-06-30 13F DIAMONDBACK ENERGY COM 25278X109 1,539,241 636,083 70.43 116,028 67.19 0.1667
2015-05-05 2015-03-31 13F DIAMONDBACK ENERGY COM 25278X109 903,158 -211,857 -19.00 69,399 4.12 0.1033
2015-02-09 2014-12-31 13F DIAMONDBACK ENERGY COM 25278X109 1,115,015 350,051 45.76 66,656 16.52 0.1000
2014-11-12 2014-09-30 13F DIAMONDBACK ENERGY COM 25278X109 764,964 295,361 62.90 57,204 37.18 0.0928
2014-08-08 2014-06-30 13F DIAMONDBACK ENERGY COM 25278X109 469,603 -37,085 -7.32 41,701 22.27 0.0698
2014-05-07 2014-03-31 13F DIAMONDBACK ENERGY COM 25278X109 506,688 291,416 135.37 34,105 199.72 0.0622
2014-02-06 2013-12-31 13F DIAMONDBACK ENERGY COM 25278X109 215,272 -11,643 -5.13 11,379 17.60 0.0233
2013-11-12 2013-09-30 13F DIAMONDBACK ENERGY COM 25278X109 226,915 102,052 81.73 9,676 132.60 0.0233
2013-08-01 2013-06-30 13F DIAMONDBACK ENERGY COM 25278X109 124,863 124,863 4,160 0.0115
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.