OOpeek - No, I have no knowledge or theory on who the sellers are I'm afraid. There still seem to be plenty of them, and Orbis has obviously been hoovering them up.
But I'm never too worried about a long list of sellers if I have faith in the company and my own research. There's an element of herd mentality at work sometimes. How else to explain the ridiculous prices many quality stocks were sold down to earlier this year? People were lining up to sell things like CBA at $24. Barely eight months later they're lining up to buy it at $55+. And I'm not sure which action is sillier.
That's not to say the contrarians are always right, of course. And NBS is obviously no blue chip. But at this price, with no debt and its prospects, I think it compares quite well to, say, plenty of junior miners/explorers who have yet to produce anything other than losses or hot air yet remain more highly valued by the market.
NBS Price at posting:
33.0¢ Sentiment: Hold Disclosure: Held