America’s richest people have never been richer. The 2026 Forbes 400 are worth a record $8 trillion combined, up from $6.6 trillion just a year ago—and it now takes an astonishing $4.4 billion fortune to make the cut. Soaring company valuations, including AI, have minted a new class of America’s wealthiest, while some of the country’s most familiar billionaires have risen, fallen or disappeared from the ranking altogether. Join Forbes expert wealth reporters and editors September 30th at 12pm ET for an exclusive look inside one of our most iconic lists with a live audience Q&A.