Simpson Thacher represented the founder and chairman of X-energy, Inc. (“X-energy”), Dr. Kamal Ghaffarian and related entities, in connection with X-energy’s upsized initial public offering of 44,254,659 shares of its Class A common stock at a public offering price of $23.00 per share. In connection with the offering, X-energy granted the underwriters a 30-day option to purchase up to an additional 6,638,198 shares of Class A common stock. The shares began trading on the Nasdaq Global Select Market on April 24, 2026, under the ticker symbol XE. The offering closed on April 27, 2026.
X-energy is a leader in advanced nuclear reactor and fuel technology.
Dr. Ghaffarian is the co-founder and chairman of several companies in addition to X-energy, including Intuitive Machines, LLC (Nasdaq: LUNR), a space services and technologies company, Axiom Space, Inc., a private space infrastructure company, Quantum Space, LLC, a space infrastructure company, and IBX, LLC, an innovation and investment firm.
The Simpson Thacher team includes Will Golden (Capital Markets); and Drew Purcell and Shareef Salfity (Tax).