large transactions like this one are happening almost every day and that is not even the biggest. the biggest ones in the past week has been 157,457BTC or $1.4 billion and 144,076BTC or $1.2 billion!!! if you think each time someone moves large amounts price should drop then price should drop literary every week and never rise. besides why does your mind directly go towards someone selling? why don't you assume that someone bought that much because of the drop?!!

here click this link and see the gigantic transactions for the past week yourself: https://blockchair.com/bitcoin/transactions?q=block_id(578125..)&s=output_total_usd(desc)#
you can also change the date or block ID at the bottom to change the time frame.