Andrew Feldman, co-founder and chief executive officer of Cerebras Systems Inc., holds the Wafer Scale Engine 3 AI chip during the company's initial public offering (IPO) at the Nasdaq MarketSite in New York, US, on Thursday, May 14, 2026. Bloomberg | Bloomberg | Getty Images The tech billionaires club has two new members after Cerebras' blockbuster IPO lifted the chipmaker's market cap close to $100 billion. Roughly a decade after starting Cerebras, Andrew Feldman, the company's CEO, and technology chief Sean Lie, own stakes worth $3.2 billion and $1.7 billion, respectively. Cerebras shares soared 68% in their Nasdaq debut on Thursday, capping a remarkable rise for a company that withdrew its prior IPO filing seven months ago, opting instead to raise private capital. In February, Cerebras was valued at $23.1 billion by investors, and now the company is riding a fresh wave of demand for AI chips that's sent shares of Intel , Advanced Micro Devices and Micron soaring.…