Insider trade on Splunk acquisition?

Let's assume this turns out to be insider trading. Can someone shed a little insight on why this is worthy of a prison sentence?

To me, even if they used information they had and we didn't, I don't see who the "victim" of this crime would be. It truly sounds like a "but it's unfair" argument and I'd really like to know why I'm wrong here.

Thanks in advance

I can't tell you why any non-violent crime warrants a custodial sentence. It seems like civil penalties really ought to be enough deterrent and a much better recompense to society.

Who is the victim?

The person who bought the stock you knew was worthless or sold you the stock you knew was gold.

Why is insider trading a crime?

It's an unmanageable market advantage, if we didn't disallow it then people wouldn't play. The people who make the rules benefit from people playing.