Former Goldman Sachs director Rajat Gupta has surrendered to the FBI on insider trading charges. After Raj Rajaratnam, he’s one of the biggest names to go down in years-long insider trading scandals on Wall Street. Unsurprisingly, the two cases are connected.

Raj Rajaratnam’s insider trading case may nab yet another notation in the history books this week. After convicted in (arguably) the largest insider trading scheme in history, Rajaratnam may face one of the longest insider trading sentences ever this Thursday, up to a near quarter-century behind bars. This, even though his attorneys argued for a prison term under a decade.

Why the discrepancy?

Former hedge funder Emanuel Goffer was just sentenced to three years behind bars, after being convicted of conspiracy and securities fraud in June. Goffer was a member of a vast insider trading scheme, prosecutors argued, led by Galleon Group leader Raj Rajaranam. He was convicted alongside his brother, Zvi Goffer, who had previously worked with Rajaratnam, and another trader, Michael Kimelman.

Raj Rajaratnam, the Galleon Group honcho convicted of masterminding a widespread insider trading scheme, is set to meet before a judge today, making his case for why he doesn’t deserve a lengthy prison sentence.

Although, with his latest argument, you have to wonder whether these things sound better in his head.

Zvi Goffer, a Galleon Group trader who was convicted in a massive insider trading scheme alongside his brother, Emmanuel, and another defendant, Michael Kimelman, in June, has been sentenced to 10 years behind bars, according to reports late last night. While the latter two defendants in this insider trading circle (considered, arguably, the largest ever) still await sentencing, this development could provide some insight into their possible prison length.

Rajat Gupta, a former director with Goldman Sachs, may be the next target in a massive government insider trading investigation, according to reports today. Federal prosecutors say that Gupta may have given inside information on Goldman to an outside hedge fund, Galleon Group, and that they may soon bring criminal charges against Gupta. Galleon, you may recall, saw its former leader Raj Rajaratnam convicted earlier this year in (arguably) the largest insider trading scheme ever.

There aren’t a lot of people who would feel sorry for Raj Rajaratnam. The former Galleon Group head executed one of the largest — if not the largest — insider trading scheme ever. And then, after being convicted, he attempted to wheedle out of a prison sentence by claiming he was too sick to be locked up. Yep.