It's 100million TOTAL supply. Reggie had said in a video that it would be 30million offered during the ICO and 70million reserved for institutional use.

HOWEVER according to the updated tear sheet on Veritas Blog "Coins on Issue" is now 51million

Here is the official tear sheet: https://drive.google.com/file/d/0By5WJsM3KjltOGJHYS1HT3Uyczg/view
As of June 12 2017 here is a screenshot of it: