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Terrestrial Energy Inc. /DE/ (NASDAQ:IMSR)
US · Delayed Price · Currency is USD
2.80-0.06 (-2.10%)
Insider Score
/ 100
IMSR Insider Score
Terrestrial Energy Inc. /DE/ has a live Insider Score.
Scored on 3 qualifying trades from 3 insiders in the last 90 days.
IMSR Stock Insider Trading Activity
IMSR stock’s insider trading shows 3 purchases for an estimated $112.28K by company insiders over the last 6 months.
Not enough price history.
Insider Trading Activity (Form 4 Filings)
An insider trade occurs when an individual that has non-public information about a company buys or sells shares of that company’s stock. Examples of insiders include a company’s executive officers (CEO, CFO, COO), its board of directors, and its major shareholders. Insiders are required to submit their trading activity to the SEC through Form 4 filings.
Scored window · last 90 days3 qualifying buys3 insiders$112.28K bought— these are the numbers in the rankings table; the full history below shows every filing (buys, sells and older activity).
| Insider | Action | Shares | Avg Cost | Total | Δ Holdings | Held After | Date | Grade | Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| Pardee Charles G Director | Buy | 7,500 | $2.95 | $22.13K | 111% | 14,258 | Oct 14, 2026 | BCluster BuyFirst BuyDilution | Form 4 |
| Irish Simon CEO | Buy | 16,900 | $3.01 | $50.82K | 0.7% | 2,312,834 | Oct 13, 2026 | BCluster BuyFirst BuyDilution | Form 4 |
| BUCKMAN FREDERICK W Director | Buy | 12,000 | $3.28 | $39.34K | 180% | 18,669 | Oct 9, 2026 | ACluster BuyFirst BuyDilution | Form 4 |
| Matthews Shawn Director | Other | 2,920,000 | — | — | 51.5% | 2,755,000 | Nov 6, 2025 | — | Form 4 |
| Matthews Shawn Director | Other | 5,675,000 | — | — | New | 5,675,000 | Oct 28, 2025 | — | Form 4 |
| Matthews Shawn Director | Other | 533,514 | — | — | New | 533,514 | Oct 28, 2025 | — | Form 4 |
| Connor Michael J Other | Other | 25,000 | — | — | New | 25,000 | Oct 28, 2025 | — | Form 4 |
| Brenner Andrew Scott Other | Other | 25,000 | — | — | New | 25,000 | Oct 28, 2025 | — | Form 4 |
| Loveless Jacob Other | Other | 25,000 | — | — | New | 25,000 | Oct 28, 2025 | — | Form 4 |
What these mean— the action is the SEC’s own Form 4 transaction code. Only a buy or a sell is an open-market trade; the rest are transfers, awards and exercises, which is why they carry no price.
- Buy (P) — Open-market or private purchase
- Other (J) — Other acquisition or disposition — the filing explains it in a footnote
Disclaimer — Informational only — not investment advice. Insider transaction data is sourced from SEC Form 4 filings; market data from public feeds and may be delayed. The Insider Score is a proprietary score for research purposes and does not predict future performance. Always do your own research.