Terrestrial Energy Inc. (IMSR)

NASDAQ: IMSR · Real-Time Price · USD

4.160

-0.225 (-5.13%)

At close: Sep 18, 2026, 4:00 PM EDT

4.240

+0.080 (1.92%)

After-hours: Sep 18, 2026, 7:59 PM EDT

Company Description

Terrestrial Energy Inc. engages in the development of small modular nuclear plants using its generation IV integral molten salt reactor (IMSR).

The IMSR captures the transformative operating benefits of molten salt reactor technology in a plant design of nuclear energy supply.

The company uses a plant design together with molten salt reactor technology and uranium in its fuel for a nuclear plant.

Terrestrial Energy Inc. was founded in 2013 and is headquartered in Charlotte, North Carolina.

Terrestrial Energy Inc.

Country	United States
Founded	2013
Industry	Utilities - Regulated Electric
Sector	Utilities
CEO	Simon Irish

Contact Details

Address: 2730 W. Tyvola Road, Suite 100 Charlotte, North Carolina 28217 United States
Phone	646 687 8212
Website	terrestrialenergy.com

Name	Position
Simon Irish	Chief Executive Officer and Director
Brian Thrasher	Chief Financial Officer
Steven Millsap	Chief Compliance Officer, General Counsel and Secretary
William Smith	Chief Operating Officer
Dr. David LeBlanc Ph.D.	Chief Technology Officer and Director
Tyler D. Gronbach	Vice President of Investor Relations and Public Relations
Pamela Cowan	Executive Vice President of Engineering