Northern Oil and Gas, Inc.
US ˙ NYSE ˙ US6655313079

SecurityNOG / Northern Oil and Gas, Inc.
InstitutionWiley Bros.-aintree Capital, Llc
Latest Disclosed Ownership24,474 shares
Latest Disclosed Value $ 715,055
Wiley Bros.-aintree Capital, Llc reports 18.04% increase in ownership of NOG / Northern Oil and Gas, Inc.

On May 15, 2026 - Wiley Bros.-aintree Capital, Llc filed a 13F-HR form disclosing ownership of 24,474 shares of Northern Oil and Gas, Inc. (US:NOG) valued at $715,375 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 20,733 shares of Northern Oil and Gas, Inc.. This represents a change in shares of 18.04% during the quarter. The current value of the position is $541,120 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 NORTHERN OIL & GAS COM 665531307 24,474 3,741 18.04 715 60.67 0.0035
2026-02-17 2025-12-31 13F NORTHERN OIL & GAS COM 665531307 20,733 -11,072 -34.81 445 -43.53 0.0023
2025-11-14 2025-09-30 13F NORTHERN OIL & GAS COM 665531307 31,805 7,271 29.64 789 12.41 0.0051
2025-08-14 2025-06-30 13F NORTHERN OIL & GAS COM 665531307 24,534 10,966 80.82 701 66.90 0.0054
2025-05-15 2025-03-31 13F NORTHERN OIL & GAS COM 665531307 13,568 13,568 421 0.0045
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.