Nothing like having a bullshit story picked up by other rags, e,g.
http://fortune.com/2018/02/19/400-million-bitcoin-anonymous-investor/, eh?
This reminds me of the time when some homeless dude once found a discarded laptop in a dumpster, then tried to sell it for ten bucks to the fist couple he came across, but they being Bitcoiners quickly discovered that the laptop contain mega bitcoins, informing the dude of their finds upon passing on the deal of the century. The homeless dude tried to tip them but the anonymous couple simply said, "Thanks, but no thanks, because that's the way we roll." (paraphrased, but nailed the sentiment)
All the major news outlets picked up the story while I started a thread tearing the event a new asshole cuz ... wait for it ... that's how I roll.

Is that you Gleb Gamow? Hehehe.
You don't believe that someone or some group of whales really bought $400m worth of Bitcoins, maybe thinking it was at a "low" or something? The chart shows big buys from $6000 on 2/6/2018 and it never came back that low ever since.
I believe it was the big Chinese miners trying to protect themselves. Just my guess for what its worth.