IsoEnergy Ltd.
ISOU- Exchange
- NYSE
- Industry
- Miscellaneous Metal Ores
- SEC CIK
- 0001997377
No open-market purchases or sales by IsoEnergy Ltd. insiders were filed in the last 90 days; 48 institutions reported holding it in 13F filings for Q2 2026, worth $161.4M in total; no superinvestor holds it.
Holders of 5% or more of ISOU
Holders whose latest Schedule 13D or 13G filing reports 5% or more of IsoEnergy Ltd., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| NexGen Energy Ltd. | 13D | 30.90%16.5M shares | New | Jun 25, 20251 filing | Jun 25, 2025 | SEC |
| Van Eck Associates Corp | 13G | 7.50%4.57M shares | New | Aug 14, 20261 filing | Aug 14, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
4 Schedule 13D and 13G filings on IsoEnergy Ltd., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Aug 14, 20264:08 PM ET | Van Eck Associates Corp | 13G | 7.50%4.57M shares | New | Jun 30, 2026 | SEC |
| May 14, 202611:38 AM ET | Queen's Road Capital Investment Ltd. | 13G/A | 4.82%2.67M shares | −0.18 ppfrom 5.00%Below 5% | Mar 31, 2026 | SEC |
| Aug 7, 20253:11 PM ET | Queen's Road Capital Investment Ltd. | 13G | 5.00%2.74M shares | New | May 1, 2025 | SEC |
| Jun 25, 20258:03 PM ET | NexGen Energy Ltd. | 13D | 30.90%16.5M shares | New | Jun 24, 2025 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell IsoEnergy Ltd. shares.
No Form 144 notices for IsoEnergy Ltd. are on file.