With 10,350,000 shares held directly by HHM @ todays closing for PEX of $0.42 the stake would be worth $4.347M.
BUT ! don't take a lot of notice of that. HHM would have to be one of the most tightly held stocks on the market. Even during the worst of times on the market there are very few shares traded in this one. So the difference between the bid & ask prices can vary widely.
If PEX moves up strongly than so will HHM. It will usually do so with a premium to the per share value of its PEX holding.