Position in IMSR
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$1,727,520
+$262,300 QoQ
Shares Held
967,000
-5.6% QoQ
Ownership
0.913%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
#21
of 107 holders
Holding Since
Mar 2025
6 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in IMSR Over Time
Shares Held
Position Value (USD)
Position in Utilities - Regulated Electric
Utilities · as of Jun 30, 2026Magnetar Financial LLC holds $186,444,705 across 6 Utilities - Regulated Electric names. IMSR ranks #5 (0.9% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | D |
Dominion Energy, Inc
|
1,219,394 | $83,272,415 | |
| 2 | TXNM |
Txnm Energy Inc
|
1,448,220 | $82,229,931 | |
| 3 | NWE |
NorthWestern Energy Group, Inc.
|
206,856 | $14,815,026 | |
| 4 | NKLR |
Terra Innovatum Global N.V.
|
765,603 | $3,766,766 | |
| 5 | IMSR |
Terrestrial Energy Inc. /DE/
This page
|
967,000 | $1,727,520 | |
| 6 | PEG |
Public Service Enterprise Group Inc
|
7,800 | $633,047 |
All Filings in IMSR
Export CSV
9 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 IMSRW | — | 723,000 | Shares | Sole | 2026-08-14 | |
| 2026-06-30 | $1,727,520 | 244,000 | Shares | Sole | 2026-08-14 | |
| 2026-03-31 IMSRW | — | 780,000 | Shares | Sole | 2026-05-13 | |
| 2026-03-31 | $1,465,220 | 244,000 | Shares | Sole | 2026-05-13 | |
| 2025-12-31 IMSRW | — | 904,994 | Shares | Sole | 2026-02-17 | |
| 2025-12-31 | $152,046 | 24,885 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 HOND | — | 142,304 | Shares | Sole | 2025-11-13 | |
| 2025-06-30 HOND | — | 1,397,166 | Shares | Sole | 2025-08-12 | |
| 2025-03-31 HOND | — | 1,959,198 | Shares | Sole | 2025-05-15 | |
| No filing history on record for this holder in this stock. | ||||||