It would be stupid for a company to call a dump of that size, if you were dumping coins, you would like to sell first (and not risking to have an empty book of buy orders), AMP is not a big market, not buying this (the dump is real, but not sure who is performing this)
https://github.com/rchain/board/blob/master/Board%20Meeting%20Minutes%2008-10-17.pdf"Evan asked how many of the AMPs have been sold, and Greg replied about 4 million, out of 10 million. Greg and Ed agreed on the goal to sell all AMPs but Ed requested a faster timeline." There could have been a dump of near a million amps yesterday, and that document is dated the 10th. They could be virtually done with it about now actually.
So this Greg guy is dumping AMP the complete time ? Good to know. It means that AMP is very undervalued. On the other hand, if he still has 60 % to dump and the Synereo team is also considering to dump part of their holdings, then it may take a very long time before these periodical AMP dumps are over.