NASDAQ:IMSR

Terrestrial Energy Stock Insider Trading

*Your capital is at risk

$7.87

-0.640 (-7.52%)

At Close: Jun 22, 2026

Terrestrial Energy Stock Insider Power

Based on the 88 latest insides trades, we have calculated the insider power to be positive at 79.06. In total, the insiders bought 26.32M and sold 11.96M IMSR shares in the last 88 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.

Insider Power (Last 88 transactions)	79.06
● Buy	26.32M shares
● Sell	11.96M shares
95% Buy Activity Strong Positive Correlation
Buy Signal High Confidence Apr 30, 2026 Analysis Breakdown: Strongly supported by a very high Insider Power Score of 79.06. Partially supported by a positive historical correlation. Confidence increased due to high data reliability score of 100. Supported by overwhelming buy-side pressure (95% buys).

Historical Insider Trades

Date	Type	Person	Role	Amount
Jun 20, 2027 Buy	Stock Option (Right to Buy)	Smith William F. Chief Operating Officer	C-Suite Officer	134 109 Value: $1.05M
Oct 21, 2026 Buy	Restricted Stock Units	Irish Simon Chief Executive Officer	CEO / President	1 023 160 Value: $8.05M
Jul 09, 2026 Buy	Stock Option (Right to Buy)	Millsap Steven M. GC, Sec'y & Chief Comp. Off'r	Officer	134 109 Value: $1.23M
May 19, 2026 Buy	Stock Option (Right to Buy)	Jones Robert Wood Director	Director	44 703 Value: $350.0K
Apr 30, 2026 Buy	Stock Option (Right to Buy)	Thrasher Brian Patrick Chief Financial Officer	C-Suite Officer	156 461 Value: $1.23M
Apr 12, 2026 Buy	Stock Option (Right to Buy) A-Award	Leblanc David Michael Chief Technology Officer	Officer	32 787 Value: $207.9K
Apr 12, 2026 Buy	Stock Option (Right to Buy) A-Award	Smith William F. Chief Operating Officer	C-Suite Officer	32 787 Value: $207.9K
Apr 12, 2026 Buy	Restricted Stock Units A-Award	Thrasher Brian Patrick Chief Financial Officer	C-Suite Officer	49 917 Value: $392.8K
Apr 12, 2026 Buy	Stock Option (Right to Buy) A-Award	Thrasher Brian Patrick Chief Financial Officer	C-Suite Officer	58 236 Value: $369.2K
Apr 12, 2026 Buy	Restricted Stock Units A-Award	Millsap Steven M. General Counsel	Officer	49 917 Value: $392.8K
Feb 03, 2026 Buy	Stock Option (Right to Buy)	Buckman Frederick W Director	Director	67 055 Value: $150.0K
Dec 18, 2025 Buy	Restricted Stock Units A-Award	Johnson William D Director	Director	1 029 Value: $8K
Dec 18, 2025 Buy	Restricted Stock Units A-Award	Matthews Shawn Director	Director	4 190 Value: $31.3K
Dec 18, 2025 Buy	Restricted Stock Units A-Award	Matthews Shawn Director	Director	735 Value: $5K
Dec 18, 2025 Buy	Restricted Stock Units A-Award	Macdiarmid John Hugh Director	Director	5 865 Value: $43.8K
Dec 18, 2025 Buy	Resricted Stock Units A-Award	Macdiarmid John Hugh Director	Director	1 029 Value: $8K
Dec 18, 2025 Buy	Restricted Stock Units A-Award	Pardee Charles G Director	Director	5 027 Value: $37.5K
Dec 18, 2025 Buy	Resricted Stock Units A-Award	Pardee Charles G Director	Director	882 Value: $7K
Dec 18, 2025 Buy	Restricted Stock Units A-Award	Hill David John Director	Director	3 352 Value: $25.0K
Dec 18, 2025 Buy	Resricted Stock Units A-Award	Hill David John Director	Director	588 Value: $4K
Dec 18, 2025 Buy	Restricted Stock Units A-Award	Jones Robert Wood Director	Director	5 865 Value: $43.8K
Dec 18, 2025 Buy	Resricted Stock Units A-Award	Jones Robert Wood Director	Director	1 029 Value: $8K
Dec 18, 2025 Buy	Restricted Stock Units A-Award	Johnson William D Director	Director	5 865 Value: $43.8K
Dec 18, 2025 Buy	Resricted Stock Units A-Award	Johnson William D Director	Director	1 720 Value: $12.8K
Dec 18, 2025 Buy	Restricted Stock Units A-Award	Buckman Frederick W Director	Director	6 703 Value: $50.0K

About Insider Power

Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.

It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%^* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.

While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.

* October 6th, 2025 - Tested on 5562 stocks