Buying a product, realising it's trash, shorting it, and then telling people why you shorted it isn't insider trading. The giveaway in this case is that MedSec

Buying a product, realising it's trash, shorting it, and then telling people why you shorted it isn't insider trading. The giveaway in this case is that MedSec/Muddy Waters were not in any way insiders, they were simply smart enough to investigate a company and find out it was overvalued before anyone else did, and then pointed it out when they had their financial ducks in a row to benefit from it.