Timing is life is most important. Since what we are about, lets look at it from another standpoint.

since RP has all that information the problem is that if he is still associated with the company and wishes to buy more, it all has to be registered. He can't tell anyone else for fear of getting caught at whats illegal.

So in order to be in a position to buy he resigned, will wait for a period of time, and then buy. Its a possibility.