DOSSIER · 13F Holders · Q2 2026
IMSR

TERRESTRIAL ENERGY INC COM SHS

111 institutions still hold TERRESTRIAL ENERGY INC COM SHS as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 881454102·111 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$143M
visible holders
Holders
111
filers reporting
Concentration
16.86%
VANGUARD CAPITAL MANAGEMENT LLC #1
top holder share
AI Holders Summary · Q2 2026

111 institutions reported IMSR in Q2 2026. VANGUARD CAPITAL MANAGEMENT LLC leads at 16.9% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$24M3.4M0.00%Q2 2026
02
EXCHANGE TRADED CONCEPTS, LLC
CIK 0001457320
$15M2.2M0.07%Q2 2026
03
CITADEL ADVISORS LLC
CIK 0001423053
$15M2.4M0.00%Q4 2025
04
UBS Group AG
CIK 0001610520
$13M1.8M0.00%Q2 2026
05
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 0001446194· Market maker
$12M1.7M0.00%Q2 2026
06
BlackRock, Inc.
CIK 0002012383
$8M1.1M0.00%Q2 2026
07
JPMORGAN CHASE & CO
CIK 0000019617
$7M967K0.00%Q2 2026
08
D. E. Shaw & Co., Inc.
CIK 0001009207
$7M1.1M0.00%Q4 2025
09
Vennlight Capital Management, LP
CIK 0002013462
$7M1.1M6.97%Q4 2025
10
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$5M694K0.00%Q2 2026
11
LMR Partners LLP
CIK 0001578621
$5M691K0.02%Q2 2026
12
Hudson Bay Capital Management LP
CIK 0001393825
$4M589K0.01%Q2 2026
13
WINTON GROUP Ltd
CIK 0001612063
$4M504K0.12%Q2 2026
14
Galaxy Group Investments LLC
CIK 0001912562
$3M500K0.36%Q4 2025
15
MORGAN STANLEY
CIK 0000895421
$3M413K0.00%Q2 2026
16
JANE STREET GROUP, LLC
CIK 0001595888· Market maker
$3M486K0.00%Q1 2026
17
Caption Management, LLC
CIK 0001706766
$3M384K0.01%Q2 2026
18
Verition Fund Management LLC
CIK 0001454027
$3M375K0.01%Q2 2026
19
VANGUARD FIDUCIARY TRUST CO
CIK 0000933478· Index
$3M366K0.00%Q2 2026
20
STATE STREET CORP
CIK 0000093751
$2M347K0.00%Q2 2026
Page 1 of 6
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Insiders at TERRESTRIAL ENERGY INC COM SHS
Cowan Pamela BethMccarthy Kathryn AnnLeblanc David MichaelSmith William F.Thrasher Brian PatrickMillsap Steven M.Hill David JohnMacdiarmid John Hugh