Stock Ownership/IMSR

TERRESTRIAL ENERGY INC (IMSR): Ownership & Insider Activity

Hedge funds and institutional managers reporting a position in IMSR · Utilities. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.

Reported Holders
17
13F filers
Aggregate Value
$18.2M
Across holders
Last Price
$5.19
2026-08-24
Sector
Utilities
GICS
Quarterly fund activity8 increased7 reduced2 exited
Full exits: Schonfeld Strategic Advisors LLC, Brevan Howard Capital Management LP
Institutional Holders of IMSR
↗
17 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
SHAW D E & CO INC
CIK 0001009207
Hedge Fund668K$4.7M26.0%0.0%Reduced$-12.5MQ2 2026
Hudson Bay Capital Management LP
CIK 0001393825
Hedge Fund589K$4.2M23.0%0.0%Added+$970KQ2 2026
Verition Fund Management LLC
CIK 0001454027
Hedge Fund375K$2.7M14.6%0.0%Reduced$-496KQ2 2026
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
Hedge Fund184K$1.3M7.2%0.0%Reduced$-1.6MQ2 2026
Magnetar Financial LLC
CIK 0001352851
Hedge Fund244K$737K4.1%0.0%Unchanged+$0Q2 2026
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
Hedge Fund96K$680K3.7%0.0%Added—Q2 2026
Squarepoint Ops LLC
CIK 0001642575
Hedge Fund86K$605K3.3%0.0%Reduced$-621KQ2 2026
VOLORIDGE INVESTMENT MANAGEMENT, LLC
CIK 0001556921
Hedge Fund83K$590K3.3%0.0%Added—Q2 2026
MOORE CAPITAL MANAGEMENT, LP
CIK 0001448574
Hedge Fund75K$531K2.9%0.0%Unchanged+$0Q2 2026
Parallax Volatility Advisers, L.P.
CIK 0001521001
Hedge Fund69K$485K2.7%0.0%Added—Q2 2026
SHAW D E & CO INCReduced
Hedge Fund
$4.7M· 26.0% of total· 0.0% port· 668K sh· $-12.5M QoQ· Q2 2026
Hudson Bay Capital Management LPAdded
Hedge Fund
$4.2M· 23.0% of total· 0.0% port· 589K sh· +$970K QoQ· Q2 2026
Verition Fund Management LLCReduced
Hedge Fund
$2.7M· 14.6% of total· 0.0% port· 375K sh· $-496K QoQ· Q2 2026
RENAISSANCE TECHNOLOGIES LLCReduced
Hedge Fund
$1.3M· 7.2% of total· 0.0% port· 184K sh· $-1.6M QoQ· Q2 2026
Magnetar Financial LLCUnchanged
Hedge Fund
$737K· 4.1% of total· 0.0% port· 244K sh· +$0 QoQ· Q2 2026
MILLENNIUM MANAGEMENT LLCAdded
Hedge Fund
$680K· 3.7% of total· 0.0% port· 96K sh· — QoQ· Q2 2026
Squarepoint Ops LLCReduced
Hedge Fund
$605K· 3.3% of total· 0.0% port· 86K sh· $-621K QoQ· Q2 2026
VOLORIDGE INVESTMENT MANAGEMENT, LLCAdded
Hedge Fund
$590K· 3.3% of total· 0.0% port· 83K sh· — QoQ· Q2 2026
MOORE CAPITAL MANAGEMENT, LPUnchanged
Hedge Fund
$531K· 2.9% of total· 0.0% port· 75K sh· +$0 QoQ· Q2 2026
Parallax Volatility Advisers, L.P.Added
Hedge Fund
$485K· 2.7% of total· 0.0% port· 69K sh· — QoQ· Q2 2026
AQR CAPITAL MANAGEMENT LLCAdded
Hedge Fund
$423K· 2.3% of total· 0.0% port· 60K sh· — QoQ· Q2 2026
BALYASNY ASSET MANAGEMENT LLCReduced
Hedge Fund
$400K· 2.2% of total· 0.0% port· 56K sh· $-1.1M QoQ· Q2 2026
TUDOR INVESTMENT CORP ET ALAdded
Hedge Fund
$299K· 1.6% of total· 0.0% port· 42K sh· +$219K QoQ· Q2 2026
ExodusPoint Capital Management, LPAdded
Hedge Fund
$285K· 1.6% of total· 0.0% port· 40K sh· — QoQ· Q2 2026
MARSHALL WACE, LLPReduced
Hedge Fund
$144K· 0.8% of total· 0.0% port· 20K sh· $-41K QoQ· Q2 2026
CITADEL ADVISORS LLCReduced
Hedge Fund
$71K· 0.4% of total· 0.0% port· 10K sh· $-3.9M QoQ· Q2 2026
Rockefeller Capital Management L.P.Added
Hedge Fund
$50K· 0.3% of total· 0.0% port· 7K sh· — QoQ· Q2 2026
1–10 of 17
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