CITADEL ADVISORS LLC - 31 Dec 2025 SCHEDULE 13G/A Report for TERRESTRIAL ENERGY INC. Common stock, par value $0.0001 per share (the "Shares") (IMSR)

Filing Manager
CITADEL ADVISORS LLC
Reporting Manager
Kenneth Griffin
Security
TERRESTRIAL ENERGY INC. Common stock, par value $0.0001 per share (the "Shares")
Symbol
IMSR
Shares outstanding
104,718,000 shares
Disclosed Ownership
2,303,796 shares
Ownership
2.2%
Form type
SCHEDULE 13G/A
Filing time
17 Feb 2026, 16:53:23 UTC
Date of event
31 Dec 2025
SEC
View on sec.gov

Reporting Managers (7)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Citadel Advisors LLC 1.9% 2,029,208 0 2,029,208 /s/ Seth Levy Seth Levy, Authorized Signatory
Citadel Advisors Holdings LP 1.9% 2,029,208 0 2,029,208 /s/ Seth Levy Seth Levy, Authorized Signatory
Citadel GP LLC 1.9% 2,029,208 0 2,029,208 /s/ Seth Levy Seth Levy, Authorized Signatory
Citadel Securities LLC 0.3% 274,588 0 274,588 /s/ Seth Levy Seth Levy, Authorized Signatory
Citadel Securities Group LP 0.3% 274,588 0 274,588 /s/ Seth Levy Seth Levy, Authorized Signatory
Citadel Securities GP LLC 0.3% 274,588 0 274,588 /s/ Seth Levy Seth Levy, Authorized Signatory
Kenneth Griffin 2.2% 2,303,796 0 2,303,796 /s/ Seth Levy Seth Levy, attorney-in-fact*