Terrestrial EnergyIMSR
13F holders, Q4 2024 (December 31)35holders
2famous investors
$10.03avg. 13F price*
At the end of Q4 2024, 35 institutions reported holding Terrestrial Energy Inc. (IMSR) in their 13F filings. The largest holders were First Trust Capital Management L.P. ($20.7M), Picton Mahoney Asset Management ($19.8M) and AQR Arbitrage LLC ($15.7M). 2 famous investors held it, including David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Terrestrial Energy Inc.
- Filed as
- HCM II ACQUISITION CORP (Q4 2024)
- CUSIP
- G43658106
- Latest filing quarter
- Q3 2025
History
Number of 13F holders
Total Exit/New Position Q4 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 15 | $60.0M |
| Exits | 0 | $0 |
Ownership 35 holders
| First Trust Capital Management L.P. | 1.58% | No change | 2,069,998 | $20.7M |
| Picton Mahoney Asset Management | 0.75% | No change | 1,980,000 | $19.8M |
| AQR Arbitrage LLC | 0.66% | Reduce -31.3% | 1,563,833 | $15.7M |
| LMR Partners LLP | 0.34% | New | 1,500,000 | $15.0M |
| Karpus Management, Inc. | 0.38% | New | 1,293,947 | $13.0M |
| D. E. Shaw & Co. | 0.01% | New | 920,000 | $9.2M |
| Wolverine Asset Management LLC | 0.58% | Add +267.3% | 765,994 | $7.7M |
| Westchester Capital Management, LLC | 0.40% | New | 670,481 | $6.7M |
| Goldman Sachs Group Inc. | 0.00% | New | 640,024 | $6.4M |
| Highbridge Capital Management LLC | 0.72% | No change | 500,000 | $5.0M |
| Two Sigma Investments, LP | 0.01% | No change | 500,000 | $5.0M |
| Millennium Management | 0.00% | No change | 450,000 | $4.5M |
| Whitebox Advisors LLC | 0.69% | No change | 400,000 | $4.0M |
| Rivernorth Capital Management, LLC | 0.19% | No change | 400,000 | $4.0M |
| Bulldog Investors, LLP | 0.92% | New | 349,898 | $3.5M |
| Berkley W R Corp. | 0.17% | No change | 297,240 | $3.0M |
| Gritstone Asset Management LLC | 2.42% | — | 224,618 | $2.3M |
| Verition Fund Management LLC | 0.01% | Reduce -0.7% | 203,412 | $2.0M |
| Periscope Capital Inc. | 1.68% | Reduce -20.0% | 200,000 | $2.0M |
| Centiva Capital, LP | 0.07% | New | 195,221 | $2.0M |
| TENOR CAPITAL MANAGEMENT Co., L.P. | 1.73% | No change | 175,000 | $1.7M |
| Deltec Asset Management LLC | 0.30% | No change | 150,000 | $1.5M |
| Virtu Financial LLC | 0.08% | New | 146,019 | $1.5M |
| Mint Tower Capital Management B.V. | 1.21% | No change | 144,903 | $1.5M |
| Dakota Wealth Management | 0.02% | New | 103,450 | $1.0M |
| Heights Capital Management, Inc. | 0.43% | No change | 80,000 | $802K |
| Schonfeld Strategic Advisors LLC | 0.00% | New | 75,000 | $752K |
| PenderFund Capital Management Ltd. | 0.19% | No change | 30,000 | $432K |
| Tuttle Capital Management, LLC | 1.80% | New | 35,000 | $351K |
| Toronto Dominion Bank | 0.00% | New | 31,687 | $318K |
| Kepos Capital LP | 0.26% | Reduce -70.0% | 30,000 | $301K |
| Fir Tree Capital Management LP | 0.48% | Reduce -59.0% | 20,519 | $206K |
| UBS Group AG | 0.00% | New | 16,620 | $167K |
| Radcliffe Capital Management, L.P. | 1.60% | No change | 13,400 | $134K |
| Clear Street LLC | 0.00% | New | 7,364 | $74K |
"% of holder's portfolio" is IMSR's weight in each manager's 13F, not the share of Terrestrial Energy Inc. the manager owns.