Does a company have a right to price their products at any level they want?

http://www.rawstory.com/2015/09/ex-hedge-funder-buys-rights-aids-drug-and-raises-price-from-13-50-to-750-per-pill/

TL;DR – Hedge funder bought a drug company for millions of dollars and raised the price by 5,500%. People are pissed.

I believe, no matter what the product is, that the owner of the company has the absolute right to price his product anyway that they want.