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SEC EDGAR · Forms 3/4/5Updated through Oct 30, 2026•41 filings

IMSR

Terrestrial Energy Inc. /DE/

Net purchases of $112.3K over the last 3 months

3 buyers account for the net balance. A buying cluster is present: 3 distinct insiders bought within 30 days. We found 1 CEO/CFO purchases over 12 months.

How to read this signal

Only open-market P purchases and S sales count toward the signal. Vesting, options, taxes and gifts remain in the source data but do not trigger alerts. Rule 10b5-1 trades are shown as informational.

JSON example

3-month balance

+$112,279

3 buyers · 0 sellers

12-month purchases

$112,279

3 distinct insiders

12-month sales

$0.00

0 distinct insiders

Highlighted alerts

3

0 Rule 10b5-1 trades treated as informational

Buying cluster · 30 days

3 distinct insiders bought

CEO/CFO purchases · 12 months

1 executive purchases found

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Form 4 raw → Raspberry

The value is in what we do not call a signal.

The SEC XML stores every transaction. Raspberry keeps that evidence, reads the footnotes and separates voluntary open-market activity from vesting, option exercises, gifts, tax withholding, stock purchase and dividend reinvestment plans and pre-programmed 10b5-1 trades.

37
Raw transactions
Everything returned by the filing
3
Voluntary view
P/S trades after deterministic checks
25
Administrative noise
Stored, never alerted
0
10b5-1
Shown as informational
SEC ownership XML facts
Code
M
Shares
511,580
Price
$0.00
Footnotes
3

Represents shares of common stock subject to vested portion of restricted stock unit award. Each restricted stock unit represents a contingent right to receive one share of common stock. The restricted stock units vest in one-half increments on each of the first and second anniversaries of the grant date, subject to Mr. Irish's continued employment through each applicable vesting date and accelerated vesting in certain events.

Raspberry interpretation
Informational — no alert

Reason: administrative_code.

Verify in SEC EDGAR

Recent transactions

Voluntary purchases and sales; administrative noise stays hidden.

3 transactions

Pardee Charles G

Director

PurchaseAlert
Shares
7,500
Price
$2.95
Value
$22,125
Open SEC filing

Irish Simon

Chief Executive Officer

PurchaseAlert
Shares
16,900
Price
$3.01
Value
$50,818
Open SEC filing

BUCKMAN FREDERICK W

Director

PurchaseAlert
Shares
12,000
Price
$3.28
Value
$39,336
Open SEC filing

“Alert” means a voluntary, unscheduled transaction according to the filing; it is not an investment recommendation. Official source: SEC EDGAR.