Diamondback Energy, Inc.
US ˙ NasdaqGS ˙ US25278X1090

SecurityFANG / Diamondback Energy, Inc.
InstitutionPanagora Asset Management Inc
Latest Disclosed Ownership1,143 shares
Latest Disclosed Value $ 226,074
Panagora Asset Management Inc ownership in FANG / Diamondback Energy, Inc.

On May 14, 2026 - Panagora Asset Management Inc filed a 13F-HR form disclosing ownership of 1,143 shares of Diamondback Energy, Inc. (US:FANG) valued at $226,074 USD as of March 31, 2026. The entity filed a previous 13F-HR on May 15, 2025 disclosing 0 shares of Diamondback Energy, Inc.. The current value of the position is $220,165 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)
2026-05-14 2026-03-31 13F DIAMONDBACK ENERGY COM 25278X109 1,143 1,143 226 0.0008
2025-05-15 2025-03-31 13F DIAMONDBACK ENERGY COM 25278X109 0 -10,188 -100.00 0 -100.00
2025-02-13 2024-12-31 13F DIAMONDBACK ENERGY COM 25278X109 10,188 3,784 59.09 1,669 51.18 0.0077
2024-11-13 2024-09-30 13F DIAMONDBACK ENERGY COM 25278X109 6,404 -1 -0.02 1,104 -13.88 0.0053
2024-07-29 2024-06-30 13F DIAMONDBACK ENERGY COM 25278X109 6,405 -5,233 -44.96 1,282 -44.41 0.0064
2024-05-07 2024-03-31 13F DIAMONDBACK ENERGY COM 25278X109 11,638 0 0.00 2,306 27.83 0.0120
2024-02-08 2023-12-31 13F DIAMONDBACK ENERGY COM 25278X109 11,638 2,362 25.46 1,805 25.63 0.0101
2023-10-31 2023-09-30 13F DIAMONDBACK ENERGY COM 25278X109 9,276 2 0.02 1,437 17.90 0.0089
2023-08-11 2023-06-30 13F DIAMONDBACK ENERGY COM 25278X109 9,274 -2,061 -18.18 1,218 -20.50 0.0072
2023-05-12 2023-03-31 13F DIAMONDBACK ENERGY COM 25278X109 11,335 -215,861 -95.01 1,532 -95.07 0.0097
2023-02-13 2022-12-31 13F DIAMONDBACK ENERGY COM 25278X109 227,196 -3,340 -1.45 31,076 11.90 0.2038
2022-11-14 2022-09-30 13F DIAMONDBACK ENERGY COM 25278X109 230,536 -12,512 -5.15 27,770 -5.69 0.1926
2022-08-15 2022-06-30 13F DIAMONDBACK ENERGY COM 25278X109 243,048 -204,770 -45.73 29,445 -52.03 0.1930
2022-05-12 2022-03-31 13F DIAMONDBACK ENERGY COM 25278X109 447,818 279,751 166.45 61,387 238.67 0.3343
2022-02-10 2021-12-31 13F DIAMONDBACK ENERGY COM 25278X109 168,067 20,739 14.08 18,126 29.95 0.0960
2021-11-10 2021-09-30 13F DIAMONDBACK ENERGY COM 25278X109 147,328 70,428 91.58 13,948 93.19 0.0745
2021-08-11 2021-06-30 13F DIAMONDBACK ENERGY COM 25278X109 76,900 57,764 301.86 7,220 413.51 0.0387
2021-05-12 2021-03-31 13F DIAMONDBACK ENERGY COMMON 25278X109 19,136 4,526 30.98 1,406 98.87 0.0079
2021-02-10 2020-12-31 13F DIAMONDBACK ENERGY COMMON 25278X109 14,610 -20,454 -58.33 707 -33.05 0.0042
2020-11-13 2020-09-30 13F DIAMONDBACK ENERGY COMMON 25278X109 35,064 11,915 51.47 1,056 9.09 0.0066
2020-08-12 2020-06-30 13F DIAMONDBACK ENERGY COMMON 25278X109 23,149 -23,675 -50.56 968 -21.11 0.0062
2020-05-14 2020-03-31 13F DIAMONDBACK ENERGY COMMON 25278X109 46,824 22,242 90.48 1,227 -46.25 0.0087
2020-02-12 2019-12-31 13F DIAMONDBACK ENERGY COMMON 25278X109 24,582 6,415 35.31 2,283 39.80 0.0104
2019-11-12 2019-09-30 13F DIAMONDBACK ENERGY COMMON 25278X109 18,167 4,393 31.89 1,633 8.79 0.0075
2019-08-09 2019-06-30 13F DIAMONDBACK ENERGY COMMON 25278X109 13,774 13 0.09 1,501 7.44 0.0067
2019-05-15 2019-03-31 13F DIAMONDBACK ENERGY COMMON 25278X109 13,761 -26,525 -65.84 1,397 -62.60 0.0062
2019-02-14 2018-12-31 13F DIAMONDBACK ENERGY COMMON 25278X109 40,286 21,084 109.80 3,735 43.88 0.0174
2018-11-13 2018-09-30 13F DIAMONDBACK ENERGY COMMON 25278X109 19,202 16,692 665.02 2,596 686.67 0.0098
2018-08-14 2018-06-30 13F DIAMONDBACK ENERGY COMMON 25278X109 2,510 0 0.00 330 3.77 0.0013
2018-05-15 2018-03-31 13F DIAMONDBACK ENERGY COMMON 25278X109 2,510 0 0.00 318 0.32 0.0013
2018-02-14 2017-12-31 13F DIAMONDBACK ENERGY COMMON 25278X109 2,510 -2,541 -50.31 317 -35.96 0.0012
2017-11-14 2017-09-30 13F DIAMONDBACK ENERGY COMMON 25278X109 5,051 3,541 234.50 495 269.40 0.0020
2017-08-14 2017-06-30 13F DIAMONDBACK ENERGY COMMON 25278X109 1,510 0 0.00 134 -14.65 0.0005
2017-05-15 2017-03-31 13F DIAMONDBACK ENERGY COMMON 25278X109 1,510 -3,741 -71.24 157 -70.43 0.0007
2017-02-14 2016-12-31 13F DIAMONDBACK ENERGY COMMON 25278X109 5,251 -1,219 -18.84 531 -15.04 0.0024
2016-11-14 2016-09-30 13F DIAMONDBACK ENERGY COMMON 25278X109 6,470 4,960 328.48 625 352.90 0.0030
2016-08-15 2016-06-30 13F DIAMONDBACK ENERGY COMMON 25278X109 1,510 0 0.00 138 17.95 0.0007
2016-05-16 2016-03-31 13F DIAMONDBACK ENERGY COMMON 25278X109 1,510 -15,003 -90.86 117 -83.38 0.0006
2013-11-14 2013-09-30 13F DIAMONDBACK ENERGY COMMON 25278X109 16,513 -61,080 -78.72 704 -72.77 0.0035
2013-08-14 2013-06-30 13F DIAMONDBACK ENERGY COMMON 25278X109 77,593 77,593 2,585 0.0132
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.