Terrestrial Energy Inc. /DE/ (IMSR)
Latest IMSR Insider Trades
- Pamela Beth Cowan - OfficerGrant or award299,401 sh
- Kathryn Ann McCarthy - DirectorGrant or award2,049 sh
Steven M. Millsap - OfficerGrant or award
About Terrestrial Energy Inc. /DE/ (IMSR)
Terrestrial Energy Inc develops Generation IV nuclear power plants based on its proprietary Integral Molten Salt Reactor (IMSR) technology. Its small modular reactor plants are designed to provide low-carbon electricity and high-temperature industrial heat for applications including power generation, petrochemical and chemical processing, and data centers. The company is working with regulators, suppliers, industrial partners, and energy users to develop, license, and commission IMSR plants.
- CHARLOTTE, NC
- 74
- 2025
- XNAS
https://www.terrestrialenergy.comSEC filings for IMSR on EDGAR
90-Day SEC Filing Activity
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Grant or award | 2 | 301,450 |
Dollar totals are shown for open-market purchases and sales only. Grants, option exercises, gifts and tax withholding are reported by share count because they are not trades at a market price.
IMSR Insider Transactions (Form 4)
3220 Form 4 filings on record, the earliest from Oct 30, 2025, newest first.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Pamela Beth Cowan - Officer | Grant or award | Stock Option (Right to Buy) | 299,401 |
Recent IMSR Form 8-K Filings
5IMSR Insider Trading - FAQ
What is the latest insider trade for IMSR?
Terrestrial Energy Inc. /DE/ (IMSR) had 2 insider filings in the last 90 days, with the most recent on 2026-07-31. The full record for IMSR runs to 20 Form 4 filings, the earliest from 2025-10-30. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
How many insiders are buying IMSR stock?
No insider purchases of IMSR were filed in the last 90 days.
How many insiders are selling IMSR stock?
No insider sales of IMSR were filed in the last 90 days.
Where can I see IMSR SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page tracks IMSR Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
How can I follow IMSR insider buys?
Create a free InsiderAlpha account and press Watch on this page to add IMSR to your watchlist. A free account also opens the full scored daily plan with every past day and 3 months of price history. No card is required. Sign up at https://insideralpha.ai/register.
More Materials Companies with Insider Activity
Recent Insider Filings
10Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
- - Pamela Beth Cowan view on EDGAR
- - Kathryn Ann McCarthy view on EDGAR
- - Steven M. Millsap view on EDGAR
- - Brian Patrick Thrasher view on EDGAR
- - William F. Smith view on EDGAR
- - David Michael Leblanc view on EDGAR
- - William D. Johnson view on EDGAR
- - Frederick W. Buckman view on EDGAR
- - William D. Johnson view on EDGAR
Related Companies - Recent Insider Activity
Learn More
- What is SEC Form 4?
- The filing insiders must submit within two business days of a trade, and how to read its transaction codes.
- Insider activity in Materials
- Where IMSR's peers are being bought and sold.
- Every recent Form 4
- The full market-wide feed, updated as filings arrive from SEC EDGAR.
Track IMSR insider activity as it files
Real-time Form 4 alerts, AI-scored daily trade ideas and 10b5-1 plan flags.
