According to ONCI's own PRs, the 1.5B shares are restricted 144 shares, meaning they are not in the float right now. Unless those were converted to unrestricted at some point in the last year, they are still restricted. And, if they were made unrestricted in the last year, the OS would have grown by 1.5B. (Edit: I meant in the float!) I'm only saying that the story is inconsistent. The devil is in the details.