Amazon-Backed Nuclear Firm X-Energy Raises $1.02 Billion in IPO

X-Energy Inc., a nuclear energy firm that counts Amazon.com Inc. as a backer, raised $1.02 billion in an upsized US initial public offering that priced above the marketed range.

The Rockville, Maryland-based company sold 44.3 million shares for $23 each, according to a statement Thursday. X-Energy had marketed the shares for $16 to $19 each.

At the IPO price, the company has a market value of $9.1 billion based on the outstanding shares listed in its filings.

X-Energy designs small modular nuclear reactors and makes advanced nuclear fuel. Its reactors use so-called Triso pebbles, or tristructural isotropic, poppyseed-sized uranium kernels that burn hotter and longer than conventional fuel. The firm plans to use its reactors to power industrial facilities and artificial intelligence data centers and has agreements in place with Dow Inc., Amazon and Centrica Plc.