Companies / Terrestrial Energy Inc.
Terrestrial Energy Inc.
Nasdaq: IMSRCIK 2019804CHARLOTTE, NC
Financials · FY2025
Ownership
105.9M shares outstanding · as of Aug 11, 2026
Ownership
| Institutions | 18.59% | 19,689,087 |
| Public float | 81.41% | 86,246,167 |
% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.
Insiders 2
View all →| Insider | % of shares | Shares |
|---|---|---|
Johnson William DDirector | — | — |
Roberto Marco Sella10% owner | — | — |
Institutional holders 88
View all →| Holder | Value | % of shares |
|---|---|---|
| $12.40M | 1.92% | |
| $11.30M | 1.75% | |
| $7.61M | 1.01% | |
| $7.29M | 1.15% | |
| $7.15M | 1.10% | |
| $5.50M | 0.85% | |
| $4.61M | 0.71% | |
| $4.38M | 0.68% | |
| $3.96M | 0.62% | |
| $3.59M | 0.56% |
Activity
InsidersInstitutions
What insiders are doing in this stock (Form 4).| Date | Actor | Action | Security | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|---|
| Dec 18, 2025 | Johnson William D Director | Grant | Restricted Stock Units | — | +1K +17.54% | 6,894 <0.01% of shares | low |
5%+ ownership events
Schedule 13D / 13G
| Filer | Stance | % of class |
|---|---|---|
| Citadel Advisors LLC | Passive13G/A | — |
| Roberto Marco Sella | Passive13G | — |
Securities
via CUSIP / OpenFIGI
| Symbol | Type | CUSIP |
|---|---|---|
| IMSR | Common Stock | 881454102 |