TERRESTRIAL ENERGY INC (IMSRW)
Institutional ownership reported to the SEC as of Q2 2026, across 4 quarters.
Institutions report 12,270,437 shares against 105,935,254 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| LMR Partners LLP | $11.0M | 3,246,410 | 0.04% | 3q | -3.0%-$341.7K |
| CANTOR FITZGERALD, L. P. | $7.1M | 2,165,702 | 0.04% | 3q | +100.0%+$3.5M |
| BOOTHBAY FUND MANAGEMENT, LLC | $4.4M | 621,000 | 0.06% | 2q | +59.2%+$1.6M |
| Hudson Bay Capital Management LP | $4.4M | 1,296,174 | 0.01% | 3q | -0.5%-$23.2K |
| PEAK6 LLC | $4.2M | 1,236,146 | 0.01% | 3q | +4.2%+$169.0K |
| Caption Management, LLC | $2.9M | 865,372 | 0.01% | 3q | HELD |
| ARISTEIA CAPITAL, L.L.C. | $2.8M | 840,047 | 0.04% | 3q | +14.2%+$348.5K |
| Magnetar Financial LLC | $2.4M | 723,000 | 0.02% | 3q | -7.3%-$189.8K |
| MORGAN STANLEY | $686.7K | 203,165 | 0.00% | 3q | -27.6%-$262.3K |
| Linden Advisors LP | $647.9K | 194,560 | 0.00% | 3q | HELD |
| Arosa Capital Management LP | $591.5K | 175,000 | 0.11% | 3q | HELD |
| Yorkville Advisors Global, LP | $515.4K | 152,499 | 0.60% | new | NEW |
| Periscope Capital Inc. | $417.9K | 152,500 | 0.04% | 3q | HELD |
| MILLENNIUM MANAGEMENT LLC | $417.4K | options only | 0.00% | 3q | OPTIONS |
| CastleKnight Management LP | $238.6K | 73,200 | 0.00% | 3q | HELD |
| Saba Capital Management, L.P. | $218.7K | 65,681 | 0.01% | 3q | HELD |
| Walleye Capital LLC | $177.8K | 52,616 | 0.00% | 3q | -62.4%-$295.3K |
| WOLVERINE ASSET MANAGEMENT LLC | $169.2K | 50,067 | 0.00% | 3q | +2.8%+$4.5K |
| Alberta Investment Management Corp | $169.0K | 50,000 | 0.00% | 3q | HELD |
| Meteora Capital, LLC | $146.0K | 43,200 | 0.01% | new | NEW |
| Virtu Financial LLC | $75.0K | 23,041 | 0.00% | 2q | -18.9%-$17.5K |
| Stoic Point Capital Management LLC | $45.3K | 13,402 | 0.04% | 3q | HELD |
| US BANCORP \DE\ | $39.4K | 11,655 | 0.00% | new | NEW |
| Clear Street Group Inc. | $33.8K | 10,000 | 0.00% | 3q | HELD |
| Rockefeller Capital Management L.P. | $20.3K | 6,000 | 0.00% | 2q | HELD |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 25 | $43.7M | 12,270,437 | 3 | 5 | 6 | 1.0% |
| Q1 2026 | 27 | $30.1M | 10,978,156 | 5 | 4 | 9 | 1.3% |
| Q4 2025 | 29 | $26.6M | 12,131,625 | 27 | 0 | 1 | 3.5% |
| Q3 2025 | 1 | $421.2K | 70,200 | 1 | 0 | 0 | 0.0% |