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Terrestrial Energy Inc (IMSR)

Institutional ownership, SEC filings and insider activity

Sector: Industry · SEC CIK 0002019804 · EDGAR filings · Updated 2026-07-28

Terrestrial Energy Inc (IMSR) has reported institutional ownership of 17.6%, with 88 institutional managers holding positions valued at $111.3M per the latest 13F reporting period.

Filings this week (3)

• 2026-07-28 — Current report (8-K) filed
• 2026-07-27 — Insider transaction reported (Form 4)
• 2026-07-27 — Initial insider ownership filed (Form 3)

Every filing links to the official SEC document. Real-time filing alerts for this company are available inside the app.

Latest updates

• 2026-07-21 — Current report (8-K) filed
• 2026-07-17 — Current report (8-K) filed
• 2026-06-12 — Current report (8-K) filed

Institutional ownership overview

According to SEC 13F filings tracked by Sightfile, Terrestrial Energy Inc has 88 institutional holders and institutional ownership of 17.6%.

Insider activity

Insiders reported 6 transactions (0 buys, 0 sells) across 12 reporting insiders, with a net reported value of $0.

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