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
13F holders, Q4 2024
Institutional positions in Terrestrial Energy Inc. as of Dec 31, 2024. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 23
- +23 vs. Q3 2024
- Shares held
- 8.82M
- +8.82M vs. Q3 2024
- Total value
- $767.9K
- +$767.9K vs. Q3 2024
- New holders
- 23
- 0 more added
- Sold out
- 0
- 0 more reduced
Compare with Q3 2024: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting IMSRW on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 24 | $39.8M |
| Q1 2026 | 26 | $29.6M |
| Q4 2025 | 28 | $23.1M |
| Q3 2025 | 24 | $57.3M |
| Q2 2025 | 31 | $27.6M |
| Q1 2025 | 30 | $8.04M |
| Q4 2024 | 23 | $767.9K |
| Q3 2024 | 0 | $0 |
| Q2 2024 | 0 | $0 |
| Q1 2024 | 0 | $0 |
| Q4 2023 | 0 | $0 |
| Q3 2023 | 0 | $0 |
| Q2 2023 | 0 | $0 |
| Q1 2023 | 0 | $0 |
| Q4 2022 | 0 | $0 |
| Q3 2022 | 0 | $0 |
| Q2 2022 | 0 | $0 |
| Q1 2022 | 0 | $0 |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q4 2024
Shares, value and share of portfolio for each institution holding Terrestrial Energy Inc.; share changes are against Q3 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| CSS LLC | 1,288,152 | $154.6K | 0.01% | +1,288,152 | New |
| CNH Partners LLC | 1,116,928 | $119.5K | 0.00% | +1,116,928 | New |
| Picton Mahoney Asset Management | 990,000 | $119.0K | 0.00% | +990,000 | New |
| LMR Partners LLP | 750,000 | $90.0K | 0.00% | +750,000 | New |
| K2 Principal Fund, L.P. | 384,644 | $46.2K | 0.01% | +384,644 | New |
| Periscope Capital Inc. | 298,200 | $35.8K | 0.03% | +298,200 | New |
| Cantor Fitzgerald, L. P. | 2,809,999 | $31.7K | 0.00% | +2,809,999 | New |
| Highbridge Capital Management LLC | – | $30.0K | 0.00% | – | New |
| Rivernorth Capital Management, LLC | 200,000 | $24.0K | 0.00% | +200,000 | New |
| Bulldog Investors, LLP | 125,000 | $15.0K | 0.00% | +125,000 | New |
| Gritstone Asset Management LLC | 112,310 | $13.5K | 0.01% | +112,310 | New |
| Wolverine Asset Management LLC | 104,312 | $12.5K | 0.00% | +104,312 | New |
| Verition Fund Management LLC | 102,449 | $12.3K | 0.00% | +102,449 | New |
| Parallax Volatility Advisers, L.P. | 98,429 | $11.8K | 0.00% | +98,429 | New |
| Tenor Capital Management Co., L.P. | 87,500 | $10.5K | 0.00% | +87,500 | New |
| Mint Tower Capital Management B.V. | 72,451 | $9.00K | 0.00% | +72,451 | New |
| Shaolin Capital Management LLC | 57,499 | $6.90K | 0.00% | +57,499 | New |
| Context Capital Management, LLC | 76,250 | $6.86K | 0.00% | +76,250 | New |
| StoneX Group Inc. | 38,837 | $4.66K | 0.00% | +38,837 | New |
| Schonfeld Strategic Advisors LLC | 37,500 | $4.50K | 0.00% | +37,500 | New |
| Clear Street LLC | 36,942 | $4.43K | 0.00% | +36,942 | New |
| PenderFund Capital Management Ltd. | 15,000 | $2.91K | 0.00% | +15,000 | New |
| Heights Capital Management, Inc | 18,868 | $2.26K | 0.00% | +18,868 | New |