Terrestrial Energy Inc.
IMSRW- Exchange
- Nasdaq
- Industry
- Fabricated Plate Work (Boiler Shops)
- SEC CIK
- 0002019804
No open-market purchases or sales by Terrestrial Energy Inc. insiders were filed in the last 90 days; 24 institutions reported holding it in 13F filings for Q2 2026, worth $39.8M in total; no superinvestor holds it.
Other share classesIMSR
Q2 2025 vs. Q1 2025
How the institutions holding Terrestrial Energy Inc. changed between Q1 2025 and Q2 2025.
All holders in Q2 2025All holders in Q1 2025
| Measure | Q1 2025 | Q2 2025 | Change |
|---|---|---|---|
| Holders | 30 | 31 | +1 |
| Shares | 11.5M | 11.8M | +324.4K (+2.8%) |
| Value | $8.04M | $27.6M | +$19.6M (+243.3%) |
New holders (5)
Institutions that held Terrestrial Energy Inc. at the end of Q2 2025 but not at the end of Q1 2025.
| Institution | Shares | Value | % of portfolio |
|---|---|---|---|
| PEAK6 LLC | 575,088 | $1.35M | 0.05% |
| Arosa Capital Management LP | 450,000 | $1.06M | 0.77% |
| Morgan Stanley | 283,078 | $665.2K | 0.00% |
| Governors Lane LP | 141,101 | $331.6K | 0.05% |
| MYDA Advisors LLC | 139,303 | $327.4K | 0.09% |
Sold out (4)
Institutions that held Terrestrial Energy Inc. at the end of Q1 2025 and filed for Q2 2025 without it.
| Institution | Shares, Q1 2025 | Value, Q1 2025 |
|---|---|---|
| Highbridge Capital Management LLC | – | $138.0K |
| Verition Fund Management LLC | 90,000 | $62.1K |
| UBS Group AG | 1,829 | $1.26K |
| PenderFund Capital Management Ltd. | 15,000 | – |