There are plenty of CEO's who purchase stock in their own company.
Not when they're running a scam!
If Seymour and Diwan truly believed they had a "cure machine" that stood a snowball's chance in hell of curing just a single viral disease, they'd be using a good portion of their millions of dollars in compensation to buy up as much stock as possible at these "cheap" prices.
News 
Market Data 
Discover 
