answer is underwriters. either that or they were bought on the open market.

"Bought Deal". do you know what a bought deal is. this is when underwriters (rather than investors) commit to buy the shares. with a bought deal, underwriters take on the risk of being unable to sell the shares or selling them at a loss. its an innovation in that the old way the issuing company would not know how many shares would be sold or at what price. so they became popular especially for small, risky issuers such as ML who don't want slash the price of the offering or see them unsold. this was popularized by Gordon Capital...

http://www.globeadvisor.com/servlet/ArticleNews/story/gam/20090626/ROB7P36