If I'm not mistaken, any company taking a 5% or greater position in a company must file that they're doing it. Can you imagine what would happen with the stock if a BP on major Institution announced 5% ownership in NWBO.
I frankly believe that ultimately there will be collaborations on trials between NWBO and BP's and part of the agreements, which the BP's may pay NWBO to do, may have provisions for future stock buys based on the price when certain milestones have been achieved. In short the BP equity partners will be buying at prices that are substantially higher than the price when the collaboration is initially announced.
Gary