Institutional holdings are and or are not limited to... Banks, Insurance companies, Pensions/ Pension Funds, Hedge Funds, Investment Advisors, Endowments, and Mutual Funds!!
There will be multiple Investors as Ed has already stated that have tried to "buy in" already. Anyone who wants a piece of a booming industry and business. As recently as this week JP Morgan chase is looking to get into the industry as well.
Whos to say they don't jump start their entry into the industry and flat out buy an emerging company?? It is a heck of a lot cheaper and faster to do so.