nothing sures everything but we already knew about whales manipulating the market so there's a possibility that they want to bag money at least before the halving happens and this can be true also.
but for me?don't expect more about this halving mate because this can be use as well by this manipulator as too many of us are looking to much positive on this event.
halving is a long awaited event, based on btc history, manipulators are not able to make their own patterns and eventually go with the mainstream. It is precisely now the best time for them to move prices down because the charts allow testing after consolidation, my prediction is that there will be a big dump at the end of this year.