Jim Walton, 76, the youngest son of founder Sam Walton, leads the way with $102.6 billion; while Rob Walton, 79, is at $100.4 billion, according to Bloomberg’s index.

The succession battle playing out in a Nevada courtroom this month between Rupert Murdoch’s four oldest children could ultimately decide who controls Fox News and The Wall Street Journal, two of the most influential U.S. news outlets.

Low Tuck Kwong transfered a 22% stake in coal producer PT Bayan Resources to his daughter, Elaine Low, as part of a succession plan.

Curt Calaway, who has been with Tyson since 2006, had already taken over as interim CFO in June after the great-grandson of Tyson Foods’ founder was arrested for allegedly driving while intoxicated.

In the early 1990s, Riggio borrowed the idea of a book superstore from competitor Borders Group Inc. and made it better, with coffee shops, reading nooks, and music and gift departments.

In the debut of the Wealth & Wisdom video series, Editor Kristen Oliveri sits down with Don Peebles, the chairman and CEO of the Peebles Corp.