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$IMSR All transactions

Terrestrial Energy Inc. /DE/

A

$ Value

$0

Shares

4,190

Price

$0

Filed

Dec 22

Insider

Name

Matthews Shawn

Title

CIK

0001855118

Roles

Director

Transaction Details

Transaction Date

2025-12-18

Code

A

Table

Derivative

Ownership

Direct

Equity Swap

No

Shares After

4,190

Footnotes

Each restricted stock unit represents a contingent right to acquire one share of Common Stock. So long as the Reporting Person provides continuous service to Terrestrial Energy, Inc., 100% of the restricted stock units will vest on December 31, 2026.

Filing Info

Accession No.

0001213900-25-124579

Form Type

4

Issuer CIK

0002019804

Matthews Shawn's History

Date Ticker Type Value
2026-03-06 AGPU A $0
2026-02-11 HACQ J $225
2025-12-18 IMSR A $0
2025-12-18 IMSR A $0
2025-11-06 IMSR J
2025-11-06 IMSR J
2025-10-28 IMSR J
2025-10-28 IMSR J
2025-10-28 IMSR J $49.2M
2025-10-28 IMSR J $14.6M

Other Insiders at IMSR (90d)

Insider Bought Sold Last
Millsap Steven M.
General Counsel
2026-04-12
Thrasher Brian Patrick
Chief Financial Officer
2026-04-12
Smith William F.
Chief Operating Officer
2026-04-12
LeBlanc David Michael
Chief Technology Officer
2026-04-12