Diamondback Energy, Inc.
DE ˙ XTRA ˙ US25278X1090
175,34 € ↑1,92 (1,11%)
2026-06-04
DEL PRIS
SecurityDE:7DB / Diamondback Energy, Inc.
InstitutionSummit Trail Advisors, Llc
Latest Disclosed Ownership8,959 shares
Latest Disclosed Value $ 1,771,992
Summit Trail Advisors, Llc reports 8.55% increase in ownership of 7DB / Diamondback Energy, Inc.

On May 12, 2026 - Summit Trail Advisors, Llc filed a 13F-HR form disclosing ownership of 8,959 shares of Diamondback Energy, Inc. (DE:7DB) valued at $1,551,340 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 8,253 shares of Diamondback Energy, Inc.. This represents a change in shares of 8.55% during the quarter. The current value of the position is $1,570,871 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 8,959 706 8.55 1,772 42.82 0.0254
2026-02-17 2025-12-31 13F DIAMONDBACK ENERGY COM 25278X109 8,253 -1,032 -11.11 1,241 -6.63 0.0214
2025-11-14 2025-09-30 13F DIAMONDBACK ENERGY COM 25278X109 9,285 9,285 1,329 0.0183
2025-04-28 2025-03-31 13F DIAMONDBACK ENERGY COM 25278X109 0 -2,210 -100.00 0 -100.00
2025-01-29 2024-12-31 13F DIAMONDBACK ENERGY COM 25278X109 2,210 573 35.00 362 28.37 0.0134
2024-11-12 2024-09-30 13F DIAMONDBACK ENERGY COM 25278X109 1,637 -263 -13.84 282 -25.79 0.0070
2024-08-13 2024-06-30 13F Diamondback Energy Inc Com COM 25278X109 1,900 268 16.42 380 17.65 0.0100
2024-04-23 2024-03-31 13F DIAMONDBACK ENERGY COM 25278X109 1,632 1,632 323 0.0086
2021-02-16 2020-12-31 13F Corning Inc Com Equity 25278X109 0 -10,298 -100.00 0 -100.00
2020-11-16 2020-09-30 13F Corning Inc Com Equity 25278X109 10,298 10,298 362 0.0700
2018-08-10 2018-06-30 13F DIAMONDBACK ENERGY INC COM EQUITY 25278X109 0 -31,928 -100.00 0 -100.00
2018-05-21 2018-03-31 13F DIAMONDBACK ENERGY INC COM EQUITY 25278X109 31,928 31,694 13,544.44 32 3.23 0.0050
2018-02-14 2017-12-31 13F DIAMONDBACK ENERGY INC COM EQUITY 25278X109 234 234 31 0.0039
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.