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Home/The Filing Wire/Terrestrial Energy Inc./ EFFECT

Notice of Effectiveness · EFFECT

Terrestrial Energy Inc.

IMSRNASDAQEQUITYCurrent

Notice of Effectiveness

Filed Nov 10, 2026Accepted Nov 12, 2026, 12:15 AM ESTFiling CIK 2019804Accession 9999999995-26-003512
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Structured filing — EFFECT

primary_doc.xml

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Notice details

Submission type
EFFECT
Act
33

Effectiveness

Effective date
2026-11-10
Effective time (as filed)
16:30:00
Form
S-3

Registrant 1

Registrant
Terrestrial Energy Inc. /DE/
Registrant CIK
0002019804
File number
333-299800

Company context

Terrestrial Energy is a developer of Generation IV nuclear plants powered by its Integral Molten Salt Reactor (IMSR) technology, delivering innovation in efficiency, cost, versatility and functionality. The IMSR Plant is small, modular and designed to supply low-cost, reliable, high-temperature heat and electricity for industrial applications, including data centers and petrochemical synthesis. By extending nuclear energy beyond power markets, the IMSR Plant supports clean firm heat and power, self-reliance, grid reliability and economic growth. Using proven molten salt technology and inexpensive standard-assay low-enriched uranium fuel, Terrestrial Energy is working with regulators, suppliers and partners toward fleet deployment of IMSR Plants across multiple sites in the U.S. in the 2030s. Learn more: terrestrialenergy.com.

Current securities

IMSRNASDAQ · EQUITY · CurrentIMSRWNASDAQ · WARRANT · Current
Historical securities (3)
HONDNASDAQ · EQUITY · Historical · closed Oct 28, 2025HONDUNASDAQ · UNIT · Historical · closed Oct 28, 2025HONDWNASDAQ · WARRANT · Historical · closed Oct 28, 2025

Recent company filings

  1. 10-Q filingNov 10, 2026
  2. Results of Operations and Financial ConditionNov 10, 2026
  3. EFFECT filingNov 9, 2026
  4. POS AM filingNov 3, 2026
  5. S-3 filingNov 3, 2026

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