Ivan Boesky, a prominent Wall Street arbitrager in the 1980s who became infamous for his role in one of the largest insider trading scandals of the era, has died at the age of 87. Boesky's high-flying career came to a dramatic end when he was convicted of insider trading, leading to a record $100 million fine and a prison sentence. He was a key figure in the scandal that exposed widespread corruption on Wall Street and served as the inspiration for the character Gordon Gekko in Oliver Stone's 1987 film 'Wall Street'. Boesky's cooperation with the government was instrumental in uncovering the extent of the insider trading network, and his downfall marked the end of a decade characterized by financial greed and excess. The New York Times reported that Boesky died in his sleep at his home in San Diego. In a 1986 speech at UC Berkeley, Boesky famously declared, 'Greed is all right, by the way.'