SCHEDULE 13G/A

TERRESTRIAL ENERGY INC COM SHS

Common stock, par value $0.0001 per share (the "Shares") · CUSIP: 881454102

Event date: 2025-12-31

Reporting persons may disclose overlapping interests. Their amounts are shown individually and are not added into a filing total.

Filing-level shares

Unavailable

Percent of class

Unavailable

• Citadel Advisors LLC

  Shares: 2,029,208.00 · Class: 1.9%

• Citadel Advisors Holdings LP

  Shares: 2,029,208.00 · Class: 1.9%

• Citadel GP LLC

  Shares: 2,029,208.00 · Class: 1.9%

• Citadel Securities LLC

  Shares: 274,588.00 · Class: 0.3%

• Citadel Securities Group LP

  Shares: 274,588.00 · Class: 0.3%

• Citadel Securities GP LLC

  Shares: 274,588.00 · Class: 0.3%

• Kenneth Griffin

  Shares: 2,303,796.00 · Class: 2.2%

Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.