For the first time, Den of Thieves describes, in detail, how the Big Four of Wall Street created the largest insider trading network in financial history, how they almost stole billions of dollars of illegal gains, and how law enforcement officials overcame all kinds of difficulties under pressure to finally succeed in attaining the sanctions and punishments that the four prime culprits deserved. The book is based on four years of extensive jury review and actual transaction records, as well as in-depth interviews and investigations.