IMSRW · Terrestrial Energy Inc. · Shareholders & Ownership
Every disclosed holder of IMSRW in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.
Who Owns IMSRW
13F quarter Jun 30, 2026; this listing alone: insiders and shares outstanding are issuer-wide, so they are left outNo chart: shares outstanding cannot be set against these holders.
| Holder group | Shares | % Out |
|---|---|---|
| Institutional (13F) | 11,187,586 | — |
| Insiders (Forms 3, 4, 5) | 0 | — |
| 13D/G-only blocks | 0 | — |
| Registered funds (N-PORT, not summed) | 0 | — |
% Out is unavailable: shares outstanding is an issuer-wide count, not one listing's.
13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.
Holders of IMSRW
| # | Holder | Shares | As of | Notes |
|---|---|---|---|---|
| 1 |
LMR Partners LLP
13F
CIK 1578621 · Exempt reporting adviser · Jun 30, 2026
|
3,246,410 | ||
| 2 |
Hudson Bay Capital Management LP
13F
CIK 1393825 · Registered investment adviser · Jun 30, 2026
|
1,296,174 | ||
| 3 |
PEAK6 LLC
13F
CIK 1389958 · Broker-dealer · Jun 30, 2026
|
1,236,146 | ||
| 4 |
CANTOR FITZGERALD, L. P.
13F
CIK 1024896 · Unknown · Jun 30, 2026
|
1,082,851 | ||
| 5 |
Caption Management, LLC
13F
CIK 1706766 · Registered investment adviser · Jun 30, 2026
|
865,372 | ||
| 6 |
ARISTEIA CAPITAL, L.L.C.
13F
CIK 1080171 · Registered investment adviser · Jun 30, 2026
|
840,047 | ||
| 7 |
Magnetar Financial LLC
13F
CIK 1352851 · Registered investment adviser · Jun 30, 2026
|
723,000 | ||
| 8 |
BOOTHBAY FUND MANAGEMENT, LLC
13F
CIK 1549230 · Registered investment adviser · Jun 30, 2026
|
621,000 | ||
| 9 |
MORGAN STANLEY
13F
CIK 895421 · Holding company · Jun 30, 2026
|
203,165 | ||
| 10 |
Linden Advisors LP
13F
CIK 1279396 · Registered investment adviser · Jun 30, 2026
|
194,560 | ||
| 11 |
Arosa Capital Management LP
13F
CIK 1596053 · Registered investment adviser · Jun 30, 2026
|
175,000 | ||
| 12 |
Periscope Capital Inc.
13F
CIK 1695320 · Exempt reporting adviser · Jun 30, 2026
|
152,500 | ||
| 13 |
Yorkville Advisors Global, LP
13F
CIK 1838613 · Registered investment adviser · Jun 30, 2026
|
152,499 | ||
| 14 |
CastleKnight Management LP
13F
CIK 1835751 · Registered investment adviser · Jun 30, 2026
|
73,200 | ||
| 15 |
Saba Capital Management, L.P.
13F
CIK 1510281 · Registered investment adviser · Jun 30, 2026
|
65,681 | ||
| 16 |
Walleye Capital LLC
13F
CIK 1758720 · Registered investment adviser · Jun 30, 2026
|
52,616 | ||
| 17 |
WOLVERINE ASSET MANAGEMENT LLC
13F
CIK 1279891 · Registered investment adviser · Jun 30, 2026
|
50,067 | ||
| 18 |
Alberta Investment Management Corp
13F
CIK 1463559 · Non-US institution · Jun 30, 2026
|
50,000 | ||
| 19 |
METEORA CAPITAL, LLC
13F
CIK 1905106 · Investment adviser · Jun 30, 2026
|
43,200 | ||
| 20 |
Virtu Financial LLC
13F
CIK 1533964 · Unknown · Jun 30, 2026
|
23,041 | ||
| 21 |
Stoic Point Capital Management LLC
13F
CIK 2043279 · Registered investment adviser · Jun 30, 2026
|
13,402 | ||
| 22 |
US BANCORP \DE\
13F
CIK 36104 · Bank · Jun 30, 2026
|
11,655 | ||
| 23 |
Clear Street Group Inc.
13F
CIK 1881567 · Unknown · Jun 30, 2026
|
10,000 | ||
| 24 |
Rockefeller Capital Management L.P.
13F
CIK 1739439 · Registered investment adviser · Jun 30, 2026
|
6,000 |
Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.