Ben Lamm, founder of de-extinction biotech firm Colossal Biosciences, debuted on the 2026 Forbes 400 at No. 302 with a $5.7 billion fortune, becoming one of 34 newcomers. Texas dominates the list with billionaires like Elon Musk ($908 billion) and Michael Dell ($263 billion), while the entry threshold surged to a record $4.4 billion, excluding nearly 600 American billionaires from the ranking.