Transaction · 0001193125-26-440015

Irish Simon

Irish Simon, CEO, reported a transaction classified as exercise at Terrestrial Energy Inc. DE involving 55432.000000 shares for an estimated $0.00. Reported holdings after the transaction were 2879846.000000 shares. A 10b5-1 reference was not detected in the stored filing text.

exerciseSEC transaction code MCEO
IMSRTerrestrial Energy Inc. DE
Trade date
Oct 28, 2026
Filing date
Oct 30, 2026
View on SEC Insider profile
Disclosed value$0Shares × reported price
Shares traded55.4k$0.00 per share
Holdings after2.87MDirect
% of reported position tradedUnavailableThis security and ownership context
How reported position traded is calculated

Calculated only for code-P purchases and code-S sales.

Row-level estimate for this security and ownership context, not the insider’s complete portfolio. Joint ownership, other transactions in the filing, amendments and footnotes can affect interpretation.

IMSR price since this filing

Daily closing prices, with the filing date and available return windows
IMSR · Daily closing priceLoading daily prices…
Filing dateReturn windows appear as prices become available.
Pre-filing1mo ago1w ago -14.8%1d ago -4.6%
Returns since7d30d90d180d1y

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
exercise
Code M
Identifier
0001193125-26-440015
Common Stock
Transaction date
Oct 28, 2026
Filed Oct 30, 2026, 01:17 PM · 2d delay
Shares
55,432 sh
$0.00 per share
Estimated value
$0
Computed from shares × price
Holdings after
2,879,846 sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $100kLarge $1.00M
Direct Ownership
Filing-only score

+10 points

Compact filing score computed from stored Form 4 facts. Version v1.

Positive filing signal

This filing has a modest positive filing-only score. Treat it as a useful flag for review, not as a buy signal.

How this score is calculated
  • direct_ownership+6 points

    direct_or_indirect_ownership = D

    Direct ownership reports the insider's personal stake.
  • timely_filing+4 points

    reporting_delay_days = 2

    Filing reported within two business days of the transaction.
Read the scoring methodology

Signed filing-only points, not a probability or expected return. Version v1.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

Chief Executive Officer

Officer YesDirector Yes10% NoOther No
Footnotes & amended
  1. F1

    Represents shares of common stock subject to vested portion of restricted stock unit award.

  2. F2

    Each restricted stock unit represents a contingent right to receive one share of common stock.

  3. F3

    The restricted stock units vest pro rata over a three year period following the grant date, subject to Mr. Irish's continued employment through each applicable vesting date and accelerated vesting in…

Original filing · 0001193125-26-440015
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