Terrestrial Energy Inc. Common Stock

Day range

$2.70 – $2.98

Open

$2.87

Prev close

$2.80

Volume

861.89K

Market cap

$296.62M

Shares out

105.94M

P/E

—

P/S

—

P/B

1.05

P/FCF

—

ROE

-17.5%

ROA

-17.0%

Debt/Equity

0.00

Div yield

0.00%

As of Oct 23, 2026

• Director departureJul 31, 2026

  On July 27, 2026, Shawn Matthews informed Terrestrial Energy Inc. (the "Company") that he was resigning from the Company's Board of Directors (the "Board"), effective July 27, 2026. Mr. Matthews' decision to resign from the Board is not the result of any disagreement on any matter relating to the Company's operations, policies or practices.

• Director appointmentJul 28, 2026

  On July 22, 2026, the Board of Directors (the "Board") of Terrestrial Energy Inc. (the "Company") appointed Kathryn McCarthy to serve as a director of the Company, effective on July 22, 2026. Ms. McCarthy has served as Senior Advisor at Oak Ridge National Laboratory since 2025, supporting strategic decisions in the US ITER Project and fusion and fission research and development. Previously, she served as Director of the US ITER Project Office at Oak Ridge National Laboratory from 2020 to 2025...

• Investor presentationJul 21, 2026

  On July 21, 2026, Terrestrial Energy Inc. (the "Company") made available the Company's investor presentation to be used in general corporate and investor communications on the Company's investor relations website at https://ir.terrestrialenergy.com. A copy of the investor presentation is also furnished as Exhibit 99.1 to this Current Report on Form 8-K.

• Executive officer departureJul 17, 2026

  The employment of Steven Millsap, General Counsel, Secretary and Chief Compliance Officer of Terrestrial Energy Inc., will be ending effective September 12, 2026.

• Annual meeting resultsJun 12, 2026

  On June 11, 2026, Terrestrial Energy Inc. (the "Company") held its 2026 Annual Meeting of Stockholders (the "Annual Meeting"). At the Annual Meeting, the Company's stockholders voted on the matters described in the Definitive Proxy Statement on Schedule 14A filed with the Securities and Exchange Commission on April 29, 2026 (the "Proxy Statement"). The final voting results for the matters submitted to a vote of stockholders were as follows: The Company's stockholders elected the three nominees to the Company's Board of Directors to serve for three-year terms as Class I directors.

Days to cover

4.2

Short interest

6.45M

Avg volume

1.52M

As of Sep 30, 2026 · reported to FINRA twice monthly.

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