Amarin Corp Plc (AMRN)

[amarinbullfromchicago]

Everything you’re saying is insider trading, just hard to prove. I’m fairly familiar with the algos to track that stuff, and they’re fairly decent. The hard part of figuring out insider trading is with someone who makes 100s of trades a year and few are insider and they’re not outsized to normal trades. Steve Cohen is a great example of someone they had trouble pinning for insider info because if 5% of your trades are on non public info, it’s hard to catch. Those trades just happen to be 80%+ of the pnl!

In trading, I’ve been exposed to a ton of insider info. Most firms I know really don’t want to do it and ask to report it and step away from the security until the info is public (make no money). However, it still happens all the time, probably more often in individual accounts than anywhere. Europe (London especially) is really bad about it in big firms though