Simon Irish, Chief Executive Officer at Terrestrial Energy, bought IMSR on Oct 13, 2026
Data as of Oct 16
- Traded
- Oct 13, 2026
- Disclosed
- Oct 14, 2026
- Filed
- 1 day after the trade
Form 4s are due within two business days.
Official filing (SEC Form 4) ↗
The price around the disclosure
IMSR since disclosure
+3.7%
Similar stocks (XLU) since disclosure
+1.2%
XLU — its sector index fund
Change in closing price from Oct 14, 2026 (the first trading day on or after disclosure) to Oct 16, 2026. Dividends excluded. Not a return anyone earned.
Our take
- Not enough evidence · In past tests: 8.0 percentage points better than similar stocks over 3 months · 2,952 tries