As junk bonds fueled a wave of hostile acquisitions, Boesky became the archetype of the savvy speculator, reaping hundreds of millions of dollars in profits on takeover bets.
He was believed to have been the model for the character of Gordon Gekko, the rapacious villain played by Michael Douglas in the 1987 film Wall Street.
He was sentenced to three years in prison for insider trading, but was released after serving about two years.