Terrestrial Energy Inc. (HOND), a Delaware-incorporated company developing advanced nuclear reactor technology for industrial and electricity generation markets, filed a 424B3 prospectus supplement with the SEC on May 14, 2026, under accession number 0001104659-26-061280. The 424B3 form is used for registered ongoing securities offerings and is commonly filed by companies in their post-merger public phase following a completed SPAC business combination. Terrestrial Energy operates in the clean energy and nuclear power sector, focused on commercializing its Integral Molten Salt Reactor design. For comprehensive filing timelines, sponsor details, and deal analytics on HOND and the broader SPAC universe, sign up for a free account on SpacDesk today.