IMSR

Terrestrial Energy

82 hedge funds and large institutions have $131M invested in Terrestrial Energy in 2025 Q4 according to their latest regulatory filings, with 51 funds opening new positions, 18 increasing their positions, 9 reducing their positions, and 34 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

Call options by funds: $ | Put options by funds: $

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

more first-time investments, than exits

New positions opened: | Existing positions closed:

more funds holding

Funds holding:

16.43% less ownership

Funds ownership: 42.62%26.19% (-16%)

19% less capital invested

Capital invested by funds: $161M → $131M (-$30.2M)

100% less funds holding in top 10

Funds holding in top 10: 10 (-1)

Holders
82
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$22.1M
Puts
$6.33M
Net Calls
Net Calls Change

Top Buyers

1 +$24.7M
2 +$14.9M
3 +$14.6M
4
Citadel Advisors
Citadel Advisors
Florida
+$13.4M
5
SIG
Senator Investment Group
New York
+$12M

Top Sellers

1 -$7.99M
2 -$6.68M
3 -$4.44M
4
SG
Sourcerock Group
Colorado
-$4.23M
5
SCM
SIR Capital Management
New York
-$3.57M
Name Holding Trade Value Shares
Change
Change in
Stake
Millennium Management
51
Millennium Management
New York
$193K
Marshall Wace
52
Marshall Wace
United Kingdom
$189K
TC
53
T3 Companies
New York
$174K
BHCM
54
Brevan Howard Capital Management
Jersey
$161K
LIP
55
Lighthouse Investment Partners
Florida
$161K
Toronto Dominion Bank
56
Toronto Dominion Bank
Ontario, Canada
$153K
MF
57
Magnetar Financial
Illinois
$152K
VF
58
Virtu Financial
New York
$133K
SSA
59
Schonfeld Strategic Advisors
New York
$109K
LCM
60
Landscape Capital Management
New Jersey
$105K
National Bank of Canada
61
National Bank of Canada
Quebec, Canada
$104K
AGM
62
Alpine Global Management
New York
$99.3K
Citigroup
63
Citigroup
New York
$75.3K
MG
64
Marex Group
$73.3K
SSG
65
Summit Securities Group
New York
$70.3K
Grantham, Mayo, Van Otterloo & Co (GMO)
66
Grantham, Mayo, Van Otterloo & Co (GMO)
Massachusetts
$70.1K
FDCDDQ
67
Federation des caisses Desjardins du Quebec
Quebec, Canada
$26.6K
Osaic Holdings
68
Osaic Holdings
Arizona
$14.9K
AIM
69
Anchor Investment Management
South Carolina
$12.8K
TRCT
70
Tower Research Capital (TRC)
New York
$10.3K
ACM
71
Aster Capital Management
United Arab Emirates
$8.19K
CTWM
72
Cherry Tree Wealth Management
Minnesota
$4.23K
TAM
73
Tucker Asset Management
Colorado
$2.27K
FFA
74
Farther Finance Advisors
California
$1.51K
SPIA
75
Steward Partners Investment Advisory
New York
$1.22K