US nuclear technology developer X‑Energy has filed paperwork with the Securities and Exchange Commission to launch an initial public offering on Nasdaq, aiming to raise roughly $300 million to fund its advanced small modular reactor (SMR) and nuclear fuel business.

The company plans to list Class A shares under the ticker symbol ‘XE.’

The filing does not yet specify the number of shares or the price range, though early IPO trackers estimate the deal could reach several hundred million dollars.

X‑Energy develops high-temperature gas-cooled SMRs, with its flagship Xe‑100 design producing about 80 megawatts of electricity or 200 megawatts of heat per module. The company markets these reactors as factory-built units that can be deployed more quickly and cost-effectively than traditional large nuclear plants. X‑Energy also manufactures specialized nuclear fuel to support its reactors.

Its technology is designed to meet growing electricity demand from energy-intensive computing, including AI data centers, and to provide flexible, lower-carbon baseload power, according to the company. X‑Energy has a development pipeline of more than 11 gigawatts of planned nuclear capacity in the US and UK through commercial partnerships.

X‑Energy has attracted major backers, including Amazon and Jane Street, through funding rounds in 2024 to 2025 that raised hundreds of millions of dollars.