Why would anyone sell shares at todays price?
The fact is that the news release wasn't sufficiently good without assay results to move the share price. Investors want to see proof positive that there is underlying mineral value to support current trading price before we're going higher. That means a report by Noront's 'qualified person' or assays on recent drilling and/or report by outside party recommending a buy and a target price.
None of this detracts from what you or I might ourselves see Noront's current and speculative value but a comment on the fact that the market in general isn't as convinced and until such confidence is there we're unlikely to see high volume of trading or sharp move higher.
You might not like what I'm saying but it's what seems to be happening. If you think the latest release of news is going to take us up and over $6 then say so.