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IMSRW

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.

New
Increased
Maintained
Reduced
Closed

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

Holders
24
Holders Change
-7
Holders Change %
-22.58%
% of All Funds
0.31%
Holding in Top 10
1
Holding in Top 10 Change
+1
Holding in Top 10 Change %
% of All Funds
0.01%
New
7
Increased
4
Reduced
8
Closed
14
Calls
$3.93M
Puts
–
Net Calls
+$3.93M
Net Calls Change
+$3.7M

Top Buyers

Rank Fund Capital Flow
1
PEAK6
PEAK6
Illinois
+$1.66M
2
AC
Aristeia Capital
Connecticut
+$640K
3
CM
CastleKnight Management
New York
+$428K
4
MA
MYDA Advisors
New York
+$396K
5
BNP Paribas Financial Markets
BNP Paribas Financial Markets
France
+$277K

Top Sellers

Rank Fund Capital Flow
1
AA
AQR Arbitrage
Connecticut
-$2.44M
2
PMAM
Picton Mahoney Asset Management
Ontario, Canada
-$1.41M
3
MI
MMCAP International
Cayman Islands
-$1.15M
4
MF
Magnetar Financial
Illinois
-$852K
5
Calamos Advisors
Calamos Advisors
Illinois
-$588K
Name Holding Trade Value Shares
Change 		Change in
Stake
CF
1
Cantor Fitzgerald
New York
$16.3M -$254K -91,161 -3%
LP
2
LMR Partners
United Kingdom
$9.62M +$148K +52,900 +3%
PEAK6
3
PEAK6
Illinois
$7.02M +$1.66M +594,124 +103%
MF
4
Magnetar Financial
Illinois
$4.09M -$852K -305,100 -31%
Balyasny Asset Management
5
Balyasny Asset Management
Illinois
$4M +$237K +85,000 +15%
LA
6
Linden Advisors
New York
$2.72M -$140K -50,000 -10%
ACM
7
Arosa Capital Management
Florida
$2.7M – – –
Morgan Stanley
8
Morgan Stanley
New York
$1.7M – – –
MA
9
MYDA Advisors
New York
$1.69M +$396K +141,697 +102%
AC
10
Aristeia Capital
Connecticut
$1.38M +$640K +229,314 New
AA
11
AQR Arbitrage
Connecticut
$1.32M -$2.44M -875,692 -78%
WA
12
Whitebox Advisors
Minnesota
$1.2M – – –
CM
13
CastleKnight Management
New York
$928K +$428K +153,200 New
BNP Paribas Financial Markets
14
BNP Paribas Financial Markets
France
$596K +$277K +99,332 New
MC
15
Meteora Capital
Florida
$421K +$196K +70,200 New
PMAM
16
Picton Mahoney Asset Management
Ontario, Canada
$355K -$1.41M -505,000 -89%
RCM
17
Rivernorth Capital Management
Florida
$298K -$420K -150,300 -75%
SCM
18
Saba Capital Management
New York
$295K – – –
MTCM
19
Mint Tower Capital Management
Netherlands
$201K -$109K -38,946 -54%
BFM
20
Boothbay Fund Management
New York
$188K +$32K +11,476 New
CS
21
Clear Street
New York
$180K -$77.2K -27,656 -48%
FBB
22
Fulton Breakefield Broenniman
Maryland
$110K – – –
Royal Bank of Canada
23
Royal Bank of Canada
Ontario, Canada
$3K +$1.4K +500 New
Bank of America
24
Bank of America
North Carolina
$1.85K +$860 +308 New
MI
25
MMCAP International
Cayman Islands
– -$1.15M -490,000 Closed
1
2

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.