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IMSR · Terrestrial Energy Inc. /DE/

Everything on this page is public record — SEC Form 4 filings and congressional disclosures — alongside any INSIDER SCANNER research case for this company.

Open-market buys3
Open-market sells0
Total purchased$112,279
Unique insiders buying3
Most senior buyerCEO
Avg price paid$3.08
Research cases0
Last filing2026-10-14

Average price paid is weighted by shares, so a large purchase counts for more than a small one. It is what insiders reported paying, not a target or a fair value.

Insider flow: Buying only — a count of disclosed transactions, not a rating or a recommendation.

Insider transaction timeline

Every reported transaction, positioned by trade date. Purchases sit above the axis, sales below; circle area is proportional to dollar value. No share-price line is drawn — this feed carries transaction prices only, and a price history inferred from them would imply market data the filings do not contain.

Open-market purchase Open-market sale
2026-10-09 — BUCKMAN FREDERICK W · bought 12,000 @ $3.28 2026-10-13 — Irish Simon · bought 16,900 @ $3.01 2026-10-14 — Pardee Charles G · bought 7,500 @ $2.95
2026-10-092026-10-14

Insider cost basis

Share-weighted average price across 3 reported purchases, with the full range of prices paid. Purchases only — averaging a sale into an "insider cost" would describe a price nobody paid.

$2.95 $3.28
$3.08 weighted average insider purchase price

Insider participation

One row per insider, one cell per reported transaction, shaded by value. Repeat buying and activity clustered in time are visible at a glance.

BUCKMAN FREDERICK W Director
Irish Simon Chief Executive Officer, Director
Pardee Charles G Director
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The analysis built on top of these filings

The filings above are public record and stay public here. What an account adds for $IMSR is the reading of them — and for this company, that is what the list below says it is, no more.

  • Insider cost basisShare-weighted average price paid across the 3 reported purchases, with the full range, against the current price.
  • Insider participationWho bought, how often, and how the buying is distributed across the people filing — one person repeating is not several agreeing.
  • Transaction timelineThe [{'transaction_date': '2026-10-14', 'insider_name': 'Pardee Charles G', 'insider_title': 'Director', 'transaction_type': 'Open-market buy', 'shares': 7500.0, 'price': 2.95, 'value': 22125.0, 'is_buy': True}, {'transaction_date': '2026-10-13', 'insider_name': 'Irish Simon', 'insider_title': 'Chief Executive Officer, Director', 'transaction_type': 'Open-market buy', 'shares': 16900.0, 'price': 3.007, 'value': 50818.3, 'is_buy': True}, {'transaction_date': '2026-10-09', 'insider_name': 'BUCKMAN FREDERICK W', 'insider_title': 'Director', 'transaction_type': 'Open-market buy', 'shares': 12000.0, 'price': 3.278, 'value': 39336.0, 'is_buy': True}] reported transactions plotted over the window rather than listed, so concentration is visible.

Not available for IMSR today: no research case — nothing here has cleared the scoring threshold. Both appear on this page on their own if that changes.

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Not financial advice. This page reports public filings and past research output. It is not a recommendation to buy or sell, and no price target here is a prediction. Trade at your own risk.