If you want to see what it means by pyramid builders, look at this

"Four of Bank of America's top 10 shareholders have sold 10% or more of their holdings since March, and the bank's shares are down 34% since reaching a 52-week high of $19.86 in mid-April."

I did not check those holders specifically. Since a few top hedge funds earned an enormous profit from loading a huge amount of shares of BOA and other banks, it is likely that some of them are among those four.

http://online.wsj.com/article/SB10001424052748704127904575544161532372790.html?mod=WSJ_hps_LEFTWhatsNews