NexGen Energy Ltd.
DE ˙ DB ˙ CA65340P1062
9,64 € ↓ -0,69 (-6,71%)
2026-06-04
DEL PRIS
SecurityDE:6NE / NexGen Energy Ltd.
InstitutionArdsley Advisory Partners Lp
Latest Disclosed Ownership300,000 shares
Latest Disclosed Value $ 3,480,000
Ardsley Advisory Partners Lp reports 73.33% decrease in ownership of 6NE / NexGen Energy Ltd.

On May 15, 2026 - Ardsley Advisory Partners Lp filed a 13F-HR form disclosing ownership of 300,000 shares of NexGen Energy Ltd. (DE:6NE) valued at $2,971,200 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 1,125,000 shares of NexGen Energy Ltd.. This represents a change in shares of -73.33% during the quarter. The current value of the position is $2,892,600 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 NEXGEN ENERGY COM 65340P106 300,000 -825,000 -73.33 3,480 -66.36 0.4437
2026-02-17 2025-12-31 13F NEXGEN ENERGY COM 65340P106 1,125,000 875,000 350.00 10,347 362.29 1.1356
2025-11-14 2025-09-30 13F NEXGEN ENERGY COM 65340P106 250,000 200,000 400.00 2,239 544.96 0.2768
2025-08-14 2025-06-30 13F NEXGEN ENERGY COM 65340P106 50,000 50,000 347 0.0457
2025-05-15 2025-03-31 13F NEXGEN ENERGY COM 65340P106 0 -200,000 -100.00 0 -100.00
2025-02-14 2024-12-31 13F NEXGEN ENERGY COM 65340P106 200,000 38,500 23.84 1,319 25.17 0.2091
2024-11-14 2024-09-30 13F NEXGEN ENERGY COM 65340P106 161,500 10,000 6.60 1,053 -0.28 0.1733
2024-08-14 2024-06-30 13F NEXGEN ENERGY COM 65340P106 151,500 0 0.00 1,056 -10.28 0.1552
2024-05-15 2024-03-31 13F NEXGEN ENERGY COM 65340P106 151,500 1,500 1.00 1,178 12.20 0.1692
2024-02-14 2023-12-31 13F NEXGEN ENERGY COM 65340P106 150,000 50,000 50.00 1,049 75.42 0.1620
2023-11-14 2023-09-30 13F NEXGEN ENERGY COM 65340P106 100,000 100,000 599 0.1337
2021-05-17 2021-03-31 13F NEXGEN ENERGY COM 65340P106 0 -50,000 -100.00 0 -100.00
2021-02-16 2020-12-31 13F NEXGEN ENERGY COM 65340P106 50,000 50,000 138 0.0227
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.