Terrestrial Energy Inc. filed a Form 8-K on October 27, 2026, reporting that its Board of Directors has authorized a share repurchase program of up to $25 million of the company's common stock, with the program set to expire on October 22, 2027.

Key Highlights

  • Program size: The Board of Directors authorized repurchases of up to $25 million of the company's common stock.
  • Expiration date: The program will expire on October 22, 2027.
  • Funding source: The program will be funded from the company's existing cash on hand.
  • Shares outstanding: As of October 23, 2026, the company had approximately 105.9 million shares of common stock outstanding, including shares issuable upon exchange of outstanding exchangeable shares.
  • Repurchase methods: Purchases may be made through open market purchases, privately negotiated transactions, block trades, or other means, including under a Rule 10b5-1 trading plan.
  • No obligation: The program does not obligate the company to repurchase any particular amount of common stock and may be modified, suspended, or discontinued at any time at the company's discretion without prior notice.

Terrestrial Energy Board Approves $25 Million Buyback Through October 2027

Terrestrial Energy Inc. (NASDAQ:IMSR), a developer of Generation IV molten salt nuclear plants, announced via an October 27, 2026, Form 8-K filing that its Board of Directors has authorized a share repurchase program of up to $25 million of its common stock. The announcement was made pursuant to Item 8.01 (Other Events) of the current report, with the date of the earliest event reported as October 21, 2026.

According to the filing, the company may repurchase shares from time to time through open market purchases, privately negotiated transactions, block trades, or other means, including under a trading plan adopted in accordance with Rule 10b5-1 under the Securities Exchange Act of 1934. The filing states that "the timing, manner, price and amount of any repurchases will be determined by management at its discretion based on general economic and market conditions, the Company's share price, capital requirements, applicable legal requirements and other factors."

The filing discloses that as of October 23, 2026, the company had approximately 105.9 million shares of common stock outstanding, including shares of common stock issuable upon exchange of outstanding exchangeable shares. The program will be funded from existing cash on hand and carries no obligation for the company to repurchase any specific amount. The filing also notes that the program may be modified, suspended, or discontinued at any time without prior notice. The filing includes forward-looking statements subject to the company's cautionary language regarding risks and uncertainties.

What Was Disclosed

Terrestrial Energy's Board authorized a share repurchase program of up to $25 million, funded from existing cash, running through October 22, 2027. As of October 23, 2026, approximately 105.9 million shares of common stock were outstanding. Management retains full discretion over the timing and amount of any repurchases.