&nbsp;An SEC prosecution for insider trading led to a $100 million fine and a 3 1/2 year prison sentence for Ivan Boesky.

after being sentenced to prison on insider trading charges. A $100 million penalty against him was a record at the time

Later, after pleading guilty to insider trading charges in an appeal for leniency, he agreed to become a government informant.

At the top of his game in the mid-1980s, he had a net worth of about $818 million in today’s currency and a trading portfolio that would be valued today at $8.7 billion

promoted his deal-making skills and his knack for identifying takeover targets by Boesky, Ivan F; Madrick, Jeffrey G

Ivan the Terrible Convicted