For 25 years, Antonio Gracias has dedicated himself to serving as one of Elon Musk’s most loyal lieutenants, doing anything and everything to aid the tech mogul. On Saturday, it’s payday.

Antonio Gracias, a close friend and early investor in Elon Musk's ventures, is poised for a massive payday as SpaceX prepares for its IPO. Gracias's firm, Valor Equity Partners,…

For 25 years, Antonio Gracias has dedicated himself to serving as one of Elon Musk’s most loyal lieutenants, doing anything and everything to aid the tech mogul. On Saturday, it’s…