Thrasher Brian Patrick 4

What Happened

• Brian Patrick Thrasher, Chief Financial Officer of Terrestrial Energy Inc. (IMSR), received equity awards on 2026-04-12: 49,917 restricted stock units (RSUs) and 58,236 stock options. Both grants are reported as awards (transaction code A) at $0.00 (i.e., awards were granted, not bought).
• These are derivative awards (contingent rights/options) rather than open-market purchases or sales. No grant-date fair value or option strike price is provided in the supplied details.

Key Details

• Transaction date: 2026-04-12; Form 4 filed 2026-04-14 (filed within the typical 2-business-day window).
• Awards: 49,917 RSUs and 58,236 stock options; both reported as acquisitions (grants) at $0.00.
• Shares owned after the transaction: not specified in the provided information.
• Footnotes: F1 notes each RSU converts to one share upon vesting. F2 states RSUs were granted under the Terrestrial Energy Inc. 2025 Equity Incentive Plan and vest in one-third increments on each of the first three anniversaries of the grant date, subject to continued service. F3 indicates the options are also under the 2025 Plan and vest similarly.
• No indication of a 10b5-1 plan, tax withholding sale, cashless exercise, or other special handling in the provided data.

Context

• RSUs represent a contingent right to receive common stock on vesting; the RSUs will convert to shares only as they vest. Stock options give the holder the right to buy shares at a specified strike price (strike not disclosed here) and typically require exercise to become shares.
• Awards like these are routine executive compensation and do not by themselves indicate immediate buying or selling sentiment.