• Hadron Energy added six senior hires across engineering, program management, and finance as it advances the Halo microreactor toward commercialization.
• Brian Arnholt appointed director of reactor systems; previously a senior consultant at Sargent & Lundy, former NuScale engineering manager and principal I&C engineer.
• Ian Francis joined as probabilistic risk assessment engineer; previously a senior PRA engineer on TerraPower’s Natrium project, former licensed senior reactor operator at Talen Energy.
• Rufino Ayala named lead instrumentation and controls engineer; previously chief engineer at Paragon Energy Solutions/Rock Creek Innovations, co-inventor of an FPGA-based protection system.
• Artem Sergienko appointed controller; joined in January 2026, previously held senior controllership roles at Stem and Natera, former revenue controller at GE Digital.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Hadron Energy Inc. published the original content used to generate this news brief via Business Wire (Ref. ID: 20260625339904) on June 25, 2026, and is solely responsible for the information contained therein.