Who Owns TERRESTRIAL ENERGY INC (IMSRW)? -- Institutional Holders (2026-06-30)
34 institutions reported holding $52.2M of TERRESTRIAL ENERGY INC (IMSRW) in SEC 13F filings for 2026-06-30. Largest institutional holders: LMR Partners LLP ($11.0M), GROUP ONE TRADING LLC ($6.6M), BOOTHBAY FUND MANAGEMENT, LLC ($4.4M), Hudson Bay Capital Management LP ($4.4M), PEAK6 LLC ($4.2M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|
| 1 | LMR Partners LLP | $11.0M | 3.2M | Trimmed |
| 2 | GROUP ONE TRADING LLC | $6.6M | 934,800 | Added |
| 3 | BOOTHBAY FUND MANAGEMENT, LLC | $4.4M | 621,000 | Added |
| 4 | Hudson Bay Capital Management LP | $4.4M | 1.3M | Trimmed |
| 5 | PEAK6 LLC | $4.2M | 1.2M | Added |
| 6 | CANTOR FITZGERALD, L. P. | $3.5M | 1.1M | Trimmed |
| 7 | IMC-Chicago, LLC | $3.1M | 436,900 | Added |
| 8 | Caption Management, LLC | $2.9M | 865,372 | Hold |
| 9 | ARISTEIA CAPITAL, L.L.C. | $2.8M | 840,047 | Added |
| 10 | Magnetar Financial LLC | $2.4M | 723,000 | Trimmed |
| 11 | SIMPLEX TRADING, LLC | $2.2M | 314,900 | Added |
| 12 | MORGAN STANLEY | $686,698 | 203,165 | Trimmed |
| 13 | Linden Advisors LP | $647,885 | 194,560 | Hold |
| 14 | Arosa Capital Management LP | $591,500 | 175,000 | Hold |
| 15 | Yorkville Advisors Global, LP | $515,446 | 152,499 | New |
| 16 | Periscope Capital Inc. | $417,850 | 152,500 | Hold |
| 17 | MILLENNIUM MANAGEMENT LLC | $417,381 | 128,031 | Trimmed |
| 18 | CastleKnight Management LP | $238,632 | 73,200 | Hold |
| 19 | Saba Capital Management, L.P. | $218,718 | 65,681 | Hold |
| 20 | Walleye Capital LLC | $177,842 | 52,616 | Trimmed |
| 21 | WOLVERINE ASSET MANAGEMENT LLC | $169,226 | 50,067 | Added |
| 22 | Alberta Investment Management Corp | $169,000 | 50,000 | Hold |
| 23 | METEORA CAPITAL, LLC | $146,016 | 43,200 | New |
| 24 | HRT FINANCIAL LP | $106,000 | 15,000 | Trimmed |
| 25 | Virtu Financial LLC | $75,000 | 23,041 | Trimmed |
Source: SEC Form 13F filings · as of 2026-06-30