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.
Q4 2025 vs. Q3 2025
How the institutions holding IsoEnergy Ltd. changed between Q3 2025 and Q4 2025.
All holders in Q4 2025All holders in Q3 2025
| Measure | Q3 2025 | Q4 2025 | Change |
|---|---|---|---|
| Holders | 33 | 34 | +1 |
| Shares | 5.24M | 6.73M | +1.49M (+28.5%) |
| Value | $52.6M | $61.2M | +$8.58M (+16.3%) |
New holders (7)
Institutions that held IsoEnergy Ltd. at the end of Q4 2025 but not at the end of Q3 2025.
| Institution | Shares | Value | % of portfolio |
|---|---|---|---|
| L1 Capital Pty Ltd | 746,588 | $6.79M | 0.35% |
| Intact Investment Management Inc. | 192,000 | $1.75M | 0.05% |
| Themes Management Co LLC | 37,900 | $344.9K | 0.27% |
| Old Mission Capital LLC | 30,558 | $278.1K | 0.01% |
| Jane Street Group, LLC | 16,038 | $144.5K | 0.00% |
| Citadel Advisors LLC | 15,576 | $141.7K | 0.00% |
| Engineers Gate Manager LP | 11,155 | $100.7K | 0.00% |
Sold out (6)
Institutions that held IsoEnergy Ltd. at the end of Q3 2025 and filed for Q4 2025 without it.
| Institution | Shares, Q3 2025 | Value, Q3 2025 |
|---|---|---|
| Arosa Capital Management LP | 60,425 | $608.8K |
| Bridgewater Associates, LP | 30,241 | $304.7K |
| Two Sigma Investments, LP | 13,250 | $132.5K |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 4,766 | $48.0K |
| Acadian Asset Management LLC | 4,500 | $45.0K |
| Advisory Services Network, LLC | 400 | $4.00K |