SI
Simon Irish
Chief Executive Officer

Simon Irish insider trades: Terrestrial Energy (IMSR) stock purchases

Chief Executive Officer, Terrestrial Energy Last trade Oct 13, 2026 4 Form 4 filings
$0
Sold, last 12 months
0 sales
$51K
Bought, last 12 months
1 buy
1
Open-market trades
since 2026
1
Company
last trade 2026

Trades on the price chart

Daily close, with an arrow on each day they bought or sold

Companies

Where Simon reports to the SEC

Open-market buys and sales

1 trade reported on SEC Form 4, newest first

DateStockTypeValue
Oct 13, 2026IMSR↑ Buy$51K

Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.

Other IMSR insiders

Open-market trades in the last 12 months

About Simon Irish's insider trades

Simon Irish is Chief Executive Officer at Terrestrial Energy (IMSR). Since Oct 13, 2026, Simon has reported 1 open-market purchase worth $51K and no sales on SEC Form 4. In the last 12 months: 1 buy ($51K).

Their filings also include option exercises (2 filings), grants and awards (1 filing). These aren't open-market trades and aren't counted above.

How to read insider trades

Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every IMSR insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.