He Bought..?
Mertics used: Social Volume (from Social Search tool)
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Michael Saylor and Strategy have been drawing massive attention by their "active treasury management" lately.

You can clearly see from the social volume where the buys were happening, and then where the panic wave hit (and the scale of it) when BTC starting coming out of their balance, instead of it being a one-way street.
And just recently, buying is back on the menu, and the reaction to it has been quite vocal, comparing to the previous spikes. Considering that it's happening already AFTER a massive price move, might be a good sign for a future retracement (the crowd is in kind of argument).