10:50 AM EST, 11/24/2025 (MT Newswires) -- Amazon.com ( AMZN ) -backed X-energy said Monday it has completed an oversubscribed Series D fundraising round of about $700 million.

The round was led by Jane Street and included new investors such as ARK Invest, Galvanize and XTX Ventures, and existing investors such as Ares Management funds and Corner Capital, X-energy said.

The company added that it plans to use proceeds to support its supply chain and commercial operations.

In October 2024, Amazon ( AMZN ) led a $500 million Series C-1 funding round for X-energy. The companies also announced a collaboration to bring more than 5 gigawatts of new power projects online across the US by 2039.

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