Ann: PRU: Perseus increases investment in Predictive to 19.9%, page-54

There won’t be a bidding war until the exploitation permit is granted. Most companies do not have the risk appetite to takeover a company at this stage prior to a guarantee of mining the gold. Likely why PRU haven’t already gone for 51%.
It appears PRU are getting favourable treatment from the PDI board for some unknown reason. They have been accumulating during gaps in newsflow and loaded up more after the Guinea update nothing announcement. Seems like PDI are helping them. Any other company would have to be accumulating on the uptrend and causing the share price to rise dramatically with that kind of volume of 20% of the registry imo.