Interesting find. It shows the operation was coordinated and preplanned. The operation was a meticulously planned and well coordinated criminal conspiracy right under the noses of the regulators, who were probably ordered and/or paid to look the other way. I think  good lawyers specializing in anti-trust and criminal conspiracies could make hay out of this if the many shareholders who collectively lost tens of millions of dollars in these stocks were solicited for a class action. Discovery through a  lawsuit could bring up a lot dirt.