Terrestrial Energy Warrant
IMSRW
24 hedge funds and large institutions have $57.3M invested in Terrestrial Energy Warrant in 2025 Q3 according to their latest regulatory filings, with 7 funds opening new positions, 4 increasing their positions, 8 reducing their positions, and 14 closing their positions.
108% more capital invested
Capital invested by funds: $27.6M → $57.3M (+$29.7M)
19.66% less ownership
Funds ownership: 102.63% → 82.96% (-20%)
23% less funds holding
Funds holding: 31 → 24 (-7)
50% less first-time investments, than exits
New positions opened: 7 | Existing positions closed: 14
50% less repeat investments, than reductions
Existing positions increased: 4 | Existing positions reduced: 8
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
PEAK6
Chicago,
Illinois
|
+$1.66M |
| 2 |
AC
Aristeia Capital
Greenwich,
Connecticut
|
+$640K |
| 3 |
CM
CastleKnight Management
New York
|
+$428K |
| 4 |
MA
MYDA Advisors
Woodmere,
New York
|
+$396K |
| 5 |
BNP Paribas Financial Markets
Paris,
France
|
+$277K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
AA
AQR Arbitrage
Greenwich,
Connecticut
|
-$2.44M |
| 2 |
PMAM
Picton Mahoney Asset Management
Toronto,
Ontario, Canada
|
-$1.41M |
| 3 |
MI
MMCAP International
Grand Cayman,
Cayman Islands
|
-$1.15M |
| 4 |
MF
Magnetar Financial
Evanston,
Illinois
|
-$852K |
| 5 |
Calamos Advisors
Naperville,
Illinois
|
-$588K |
| Name | Holding | Trade Value |
Shares Change |
Change in Stake |
|
|---|---|---|---|---|---|
|
26
Calamos Advisors
Naperville,
Illinois
| – | -$588K | -250,000 | Closed |
|
|
KPF
27
K2 Principal Fund
Toronto,
Ontario, Canada
| – | -$417K | -177,489 | Closed |
|
|
GL
28
Governors Lane
New York
| – | -$332K | -141,101 | Closed |
|
|
CL
29
CSS LLC
Chicago,
Illinois
| – | -$290K | -123,216 | Closed |
|
|
GAM
30
Gritstone Asset Management
Bethesda,
Maryland
| – | -$263K | -111,926 | Closed |
|
|
TCM
31
Tenor Capital Management
New York
| – | -$206K | -87,500 | Closed |
|
|
PAMP
32
Polar Asset Management Partners
Toronto,
Ontario, Canada
| – | -$190K | -80,763 | Closed |
|
|
CCM
33
Context Capital Management
Lajolla,
California
| – | -$176K | -74,868 | Closed |
|
|
PC
34
Periscope Capital
Toronto,
Ontario, Canada
| – | -$76.4K | -32,500 | Closed |
|
|
WAM
35
Wolverine Asset Management
Chicago,
Illinois
| – | -$73K | -31,055 | Closed |
|
|
BI
36
Bulldog Investors
Saddle Brook,
New Jersey
| – | -$58.8K | -25,000 | Closed |
|
37
Parallax Volatility Advisers
San Francisco,
California
| – | -$35.4K | -15,078 | Closed |
|
|
SSA
38
Schonfeld Strategic Advisors
New York
| – | -$35.2K | -14,997 | Closed |
|
IMSRW Hedge Fund Activity: Q3 2025 in Review
24 of the 7,629 institutional investors tracked by Wall St. Rank reported a position in Terrestrial Energy Warrant (IMSRW) for Q3 2025, worth a combined $57.3M — up 108% from $27.6M a quarter earlier.
Sellers outnumbered buyers: 14 funds closed out of IMSRW and 7 opened new positions — a net loss of 7 holders — while 8 trimmed existing stakes and 4 added.
The largest buyer was PEAK6, adding an estimated $1.66M. The largest seller was AQR Arbitrage, cutting an estimated $2.44M.
- 24 institutional investors held Terrestrial Energy Warrant (IMSRW) as of Q3 2025, down from 31 in Q2 2025.
- Funds reported $57.3M of Terrestrial Energy Warrant stock for Q3 2025, up 108% quarter-over-quarter.
- 7 funds opened new Terrestrial Energy Warrant positions in Q3 2025 and 14 closed out, a net change of -7 holders.
- The largest Terrestrial Energy Warrant buyer in Q3 2025 was PEAK6, an estimated $1.66M added.
- The largest Terrestrial Energy Warrant seller in Q3 2025 was AQR Arbitrage, an estimated $2.44M sold.
Based on aggregated 13F filings for Q3 2025.