Terrestrial Energy Inc. /DE/
Close on Oct 19, 2026
- Market cap
- $301.92M
- P/E (TTM)
- –
- Dividend yield
- –
About Terrestrial Energy
Fabricated Plate Work (Boiler Shops), SIC 3443
Terrestrial Energy Inc. develops Generation IV advanced nuclear power plants using proprietary molten salt reactor technology. Its primary offering is the Integral Molten Salt Reactor plant, engineered to supply electricity and high-temperature thermal energy. The company provides pre-construction and construction engineering services, along with core reactor units and low-enriched uranium fuel salt. It serves owner-operators, nuclear utilities, and project developers across market segments that include data center power supply, industrial thermal processes, and coal plant repowering.
The company employs approximately 80 workers, including 29 specialists with advanced degrees in engineering and science. Its operations and regulatory engagements focus on North America, including the United States and Canada, alongside an early-stage project initiative in Texas. Terrestrial Energy maintains a project pipeline exceeding ten sites and collaborates with over 50 industry organizations. The provided text does not state the location of the company's corporate headquarters.
Summary of the business section of Terrestrial Energy's latest annual report, written by StockData.
Company profile
Company
- Legal name
- Terrestrial Energy Inc. /DE/
- Founded
- 2013
- Headquarters
- Charlotte, NC
- Address
- 2730 W. Tyvola Road, Suite 100 28217
- Phone
- (203) 930-2200
- Employees
- 74, Dec 31, 2025
- Industry
- Fabricated Plate Work (Boiler Shops)
- Incorporated in
- Delaware
- Fiscal year ends
- December 31
- Auditor
- UHY LLP, Melville, NewYork
Stock & identifiers
- Ticker
- IMSR
- Other tickers
- IMSRW
- Exchange
- Nasdaq
- IPO date
- Aug 16, 2024
- Shares outstanding
- 106M, Aug 11, 2026
- Public float
- $191.48M, Jun 30, 2025
- Filer category
- Non-accelerated filer<br>Smaller reporting company<br>Emerging growth company
- SEC CIK
- 2019804
- CUSIP
- 881454102
- ISIN
- US8814541020
- EIN
- 98-1785406
Executives and directors
Officers and directors who filed ownership reports (Forms 3, 4, 5) in the last two years
| Name | Position | Shares owned |
|---|---|---|
| David Michael LeBlanc | Chief Technology Officer, Director | 19,712 |
| Simon Irish | Chief Executive Officer, Director | 5,166,709 |
| Pamela Beth Cowan | EVP, Engineering | – |
| William F. Smith | Chief Operating Officer | – |
| Brian Patrick Thrasher | Chief Financial Officer | – |
| Steven M. Millsap | General Counsel | – |
| Kathryn Ann McCarthy | Director | – |
| William D. Johnson | Director | – |
| Robert Wood Jones | Director | – |
| John Hugh MacDiarmid | Director | 25,946 |
| David John Hill | Director | 18,470 |
| Charles G. Pardee | Director | 6,758 |
| Shawn Matthews | Director | 6,208,514 |
| Frederick W. Buckman | Director | 21,599 |
Corporate history
Events identified from SEC filings
| Date | Event | Details |
|---|---|---|
| Nov 24, 2025 | Auditor change | Change in certifying accountant (8-K Item 4.01) |
| Nov 3, 2025 | Acquisition / sale | Completion of acquisition or disposition of assets (8-K Item 2.01) |
| Oct 29, 2025 | Name change | Name changed from HCM II Acquisition Corp. to Terrestrial Energy Inc. /DE/ |
| Jul 17, 2025 | Merger | Registration of securities for a merger or exchange offer (S-4) |
| May 16, 2025 | Late filing | Notification of late filing |
| Aug 16, 2024 | IPO | Initial public offering priced (424B4 prospectus) |
| Aug 15, 2024 | Listing | Registration of securities on an exchange (Form 8-A) |