Valar Atomics has closed a $1 billion Series B led by Sequoia Capital, money the three-year-old nuclear company says will take it from running a single test reactor in Utah to building small reactors on a production line. Valar announced the round on August 3, 2026, along with a separate $200 million credit facility, and said Sequoia partner Shaun Maguire is joining its board. The announcement names nine other firms in the equity round, among them Valor Equity Partners and Conviction, and…