This is a way I could see it going down based on Jordan’s original announcement of NuBits. Things could have definitely changed and I doubt I have the %'s right.
70% -> to trusted people.
“This wave of investors will be people who have demonstrated a capacity to benefit cryptoasset projects such as developers, marketers, testers and active forum participants. People who purchase our Peershares will be business partners, so we want to select them carefully.”
30% -> anyone.
“Later we will sell shares to people who’s primary contribution is financial. All proceeds from the sale of our Peershares will be used in the interest of shareholders, particularly for operating and development expenses. We expect the project to be very well funded and experience explosive growth.”
From the original announcement http://www.peercointalk.org/index.php?topic=2923.0
After that, it will probably hit exchanges and be a free for all.