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IMSR

Terrestrial Energy
IMSR

88 hedge funds and large institutions have $111M invested in Terrestrial Energy in 2026 Q1 according to their latest regulatory filings, with 35 funds opening new positions, 19 increasing their positions, 22 reducing their positions, and 26 closing their positions.

New
Increased
Maintained
Reduced
Closed

114% more call options, than puts

Call options by funds: $15.7M | Put options by funds: $7.34M

35% more first-time investments, than exits

New positions opened: 35 | Existing positions closed: 26

7% more funds holding

Funds holding: 82 → 88 (+6)

3.39% less ownership

Funds ownership: 26.19% → 22.8% (-3.4%)

14% less repeat investments, than reductions

Existing positions increased: 19 | Existing positions reduced: 22

15% less capital invested

Capital invested by funds: $131M → $111M (-$19.4M)

Holders
88
Holders Change
+6
Holders Change %
+7.32%
% of All Funds
1.08%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
35
Increased
19
Reduced
22
Closed
26
Calls
$15.7M
Puts
$7.34M
Net Calls
+$8.34M
Net Calls Change
-$7.47M

Top Buyers

Rank Fund Capital Flow
1
ETC
Exchange Traded Concepts
Oklahoma
+$16.6M
2
VCM
Vennlight Capital Management
Connecticut
+$4.56M
3
CDMG
Creek Drive Management Group
California
+$2.62M
4
HHAM
HITE Hedge Asset Management
Massachusetts
+$1.9M
5
Renaissance Technologies
Renaissance Technologies
New York
+$1.86M

Top Sellers

Rank Fund Capital Flow
1
Balyasny Asset Management
Balyasny Asset Management
Illinois
-$9.48M
2
Citadel Advisors
Citadel Advisors
Florida
-$5.96M
3
MI
MMCAP International
Cayman Islands
-$5.6M
4
SIG
Senator Investment Group
New York
-$5.5M
5
CF
Cantor Fitzgerald
New York
-$3.36M
Name Holding Trade Value Shares
Change 		Change in
Stake
KK
76
KLP Kapitalforvaltning
Norway
$37.8K +$50K +6,300 New
FDCDDQ
77
Federation des caisses Desjardins du Quebec
Quebec, Canada
$32.1K +$7.93K +1,000 +23%
Osaic Holdings
78
Osaic Holdings
Arizona
$15.2K +$777 +98 +4%
AIM
79
Anchor Investment Management
South Carolina
$12.6K – – –
CTWM
80
Cherry Tree Wealth Management
Minnesota
$4.16K – – –
FFA
81
Farther Finance Advisors
California
$1.52K – – –
SPIA
82
Steward Partners Investment Advisory
New York
$1.2K – – –
DFC
83
DB Fitzpatrick & Co
Idaho
$901 +$634 +80 +114%
TRCT
84
Tower Research Capital (TRC)
New York
$619 -$12.5K -1,577 -94%
RPA
85
Redwood Park Advisors
California
$523 +$690 +87 New
SRCM
86
Signature Resources Capital Management
California
$420 +$555 +70 New
RFP
87
Root Financial Partners
California
$300 – – –
CA
88
CoreCap Advisors
Michigan
$42 – – –
SIG
89
Senator Investment Group
New York
– -$5.5M -900,000 Closed
CF
90
Cantor Fitzgerald
New York
– -$3.36M -550,000 Closed
HI
91
HBK Investments
Texas
– -$3.06M -500,000 Closed
Jane Street
92
Jane Street
New York
– -$2.39M -301,213 Closed
HCM
93
Highbridge Capital Management
New York
– -$1.49M -244,000 Closed
DB
94
Danske Bank
Denmark
– -$1.69M -213,401 Closed
Walleye Capital
95
Walleye Capital
New York
– -$1.29M -210,581 Closed
XT
96
XTX Topco
Cayman Islands
– -$594K -97,218 Closed
SIA
97
SkyView Investment Advisors
New Jersey
– -$512K -83,844 Closed
JF
98
Jump Financial
Illinois
– -$476K -77,900 Closed
Two Sigma Investments
99
Two Sigma Investments
New York
– -$353K -57,712 Closed
EGM
100
Engineers Gate Manager
New York
– -$316K -51,654 Closed
1 2 3
4
5

IMSR Hedge Fund Activity: Q1 2026 in Review

88 of the 8,126 institutional investors tracked by Wall St. Rank reported a position in Terrestrial Energy (IMSR) for Q1 2026, worth a combined $111M — down 15% from $131M a quarter earlier.

Buyers outnumbered sellers: 35 funds opened new IMSR positions and 26 closed out — a net gain of 9 holders — while 19 added to existing stakes and 22 trimmed.

The largest buyer was Exchange Traded Concepts, opening a new position worth an estimated $16.6M. The largest seller was Balyasny Asset Management, cutting an estimated $9.48M.

  • 88 institutional investors held Terrestrial Energy (IMSR) as of Q1 2026, up from 82 in Q4 2025.
  • Funds reported $111M of Terrestrial Energy stock for Q1 2026, down 15% quarter-over-quarter.
  • 35 funds opened new Terrestrial Energy positions in Q1 2026 and 26 closed out, a net change of +9 holders.
  • The largest Terrestrial Energy buyer in Q1 2026 was Exchange Traded Concepts, an estimated $16.6M added.
  • The largest Terrestrial Energy seller in Q1 2026 was Balyasny Asset Management, an estimated $9.48M sold.

Based on aggregated 13F filings for Q1 2026.