IMSR Insider Buying — Recent SEC Form 4 Activity
Track insider buying activity for Terrestrial Energy Inc. /DE/ ($IMSR). See every SEC Form 4 purchase by CEOs, CFOs, directors, and 10% owners over the last 90 days — sourced directly from EDGAR.
In the past 90 days, 3 insiders at Terrestrial Energy Inc. /DE/ (IMSR) made open-market purchases totaling $112,279.30. The most recent transaction was on 2026-10-15.
Recent Insider Purchases at Terrestrial Energy Inc. /DE/
| Date | Insider | Shares | Value |
|---|---|---|---|
| 2026-10-15 | Pardee Charles G | 7,500 | $22,125.00 |
| 2026-10-14 | Irish Simon | 16,900 | $50,818.30 |
| 2026-10-13 | BUCKMAN FREDERICK W | 12,000 | $39,336.00 |
Top Insiders Buying IMSR
- Irish SimonCEO$50,818.301 purchase
- $39,336.001 purchase
- $22,125.001 purchase
Frequently Asked — IMSR Insider Buying
What is IMSR insider buying?
$IMSR insider buying refers to open-market purchases of Terrestrial Energy Inc. /DE/ stock by corporate insiders — officers, directors, and shareholders owning more than 10% of the company. Every purchase is disclosed to the SEC on Form 4 within two business days and is shown on this page.
Why does IMSR insider activity matter?
Insiders have the best view into Terrestrial Energy Inc. /DE/'s operations. When they buy their own stock with personal money — rather than selling option grants — it signals conviction. Clusters of insider buying (two or more insiders purchasing within 14 days) have historically preceded above-market returns.
Where does this IMSR insider data come from?
Every transaction on this page is sourced directly from SEC EDGAR Form 4 filings. InsiderAct ingests these filings in near real time and filters for open-market purchases (transaction code P).
How do I get alerts when IMSR insiders buy?
Add $IMSR to your InsiderAct watchlist and enable email alerts. You'll be notified when a new Form 4 purchase is filed — usually within hours of the transaction.
What is a "cluster buy" signal?
InsiderAct flags a cluster buy when two or more independent insiders at the same company buy on the open market within a 14-day window. Cluster buys are the highest-conviction insider signal we track.
Related Insider Activity
Other stocks with recent insider buying on SEC Form 4
Want alerts when IMSR insiders buy?
Add $IMSR to your watchlist and get notified the moment a new Form 4 is filed.
Data sourced from SEC Form 4 filings via EDGAR. Read more: What is SEC Form 4?