SpaceX is initiating a secondary share sale that could push its valuation to $800 billion, making it the most valuable private company in the U.S., surpassing OpenAI. The news comes from sources familiar with the situation, revealing that the company’s CFO, Bret Johnsen, has informed investors about this sale and potential plans for an initial public offering (IPO) in 2026. This new valuation is double the $400 billion it reached during a recent share sale. The move reflects SpaceX's ongoing growth and ambition in the space industry. Despite not responding to requests for comments, the leadership's discussions about the IPO indicate a strategy to capitalize on the company's increasing worth. This valuation shift highlights the competitive landscape in private tech and aerospace sectors, where investor confidence remains strong in companies pushing technological boundaries.