As a side note, the newly issued shares will be available under the IPO section for Sandstorm, so make sure to put your order in that section to get in on the IPO (at the IPO price).
At the same time, people who own shares already can start listing them in the normal trading section at whatever price they want. Cheers.
So you're opening the door @ 2013-07-12 01:00:00. Can you let us know what timezone are the IPO timings are in?
That's 1am on Friday (EST).
One note the open market buy/sells section will be disabled until the IPO happens.