Some serious walls on Bitstamp, Bitfinex and Kraken.

Clearly a cross USD exchange operation by the same entity?
Is this a whale making a statement that Bitcoin
will be supported at $380?
If the selling pressure on Stamp is not coming from the same hand as the buying pressure, and their existed a bear whale on Stamp, then the strong support at $380 across all the USD exchanges, is perhaps a bull whale underlining who has the strongest hands to the bear whale?
I noticed that 600 BTC was sold into 1300 Bid Wall on Stamp, but nothing has been touched on Kraken or Finex.