Desq Long
Sign in

Cluster

IMSR-2026-10-09-4fecf6045c9b

SEC FORM 4CLUSTER · 3 INSIDERS
$112,279.30

Terrestrial Energy Inc. /DE/ (IMSR)

Purchase of 36,400 shares across 3 reporting persons.

Transaction Code P · Reporting Persons 3

  • BUCKMAN FREDERICK WPurchase of 12,000 shares at $3.278 per share.$39,336.00
  • Irish Simon, Chief Executive OfficerPurchase of 16,900 shares at $3.007 per share.$50,818.30
  • Pardee Charles GPurchase of 7,500 shares at $2.95 per share.$22,125.00

Surfaced by rule: 3 distinct insiders, open-market purchases, 7-day window — a deterministic filter, not a recommendation.

Traded Oct 9, 2026 · Disclosed Oct 15, 2026FILED +6 DAYS

Source: SEC Form 4 · 0001193125-26-420002 · filed 2026-10-13 · View filing →

Source: SEC Form 4 · 0001193125-26-421089 · filed 2026-10-14 · View filing →

Source: SEC Form 4 · 0001193125-26-423068 · filed 2026-10-15 · View filing →

Permalink →

Composed from the Form 4 as filed with the SEC. Share counts, prices and dates are the filing's own; the disclosure lag is counted in business days from the transaction date to the filing date. What is a Form 4?

Cite this card

Desq Long. "Terrestrial Energy Inc. /DE/ (IMSR)." Disclosed 2026-10-15. https://desqlong.com/cards/cluster-IMSR-2026-10-09-4fecf6045c9b (retrieved 2026-10-16).