Not unhealthy from the outside from where i am sitting, but in someways, i see Prem taking a big chunk of the stock in summer, as a validation that Fairfax is him, and he is Fairfax and he is going to right the ship and that it will be his strategy.
I don't see him buying the stock that big (no matter how under valued it was) if other 'rising star(s)' was slowly taking over the going forward corporate strategy.