Significant Ownership of NexGen Energy Ltd.

Signature - Title: /s/ Benjamin Salter - Benjamin Salter, CFO of NexGen Energy Ltd.
Location: Vancouver
Summary: This page shows a list of all the recent SCHEDULE 13D/G filings made by NexGen Energy Ltd..

Notify me when NexGen Energy Ltd. files a new Schedule 13D/G report.

Sym	Company	Class	Ownership	Holdings Value	Net Change	Nb Shares	Change %	Reporting Name	Report Period
ISOU	IsoEnergy Ltd.	Common Shares, no par value	31%	$112,385,048		16,478,746		NexGen Energy Ltd.	24 Jun 2025

Schedules 13D/G Reported by NexGen Energy Ltd.:

Sym	Target	Class	Ownership	Change	Current Shares	Change	Value	Reporting name	Form	Report Period	Filing Date

* An asterisk sign (*) next to the price indicates that the price is likely invalid.