In comparison, there are not a lot of shares available on the...

In comparison, there are not a lot of shares available on the market. But it would be interesting to know who is buying. To me, the options look like:

A) Someone buying on speculation of drilling results (unlikely)
B) Someone buying on rumour of a takeover (possibly)
C) A re-rating of the stock, given recent spike in gold, brexit etc (possibly)
D) Traders manipulating the market (unlikely)
E) NST purchasing shares, in preparation of a takeover (highly unlikely)
F) Someone just wanting to buy in at whatever cost (highly unlikely)