No surprise, my opinion is market manipulation. They want to keep the price below the price of the warrants to prevent the warrants from being exercised. Keeps money from NWBO coffers.
Once in awhile, the price sneaks past $0.21, but they are sure to smack it down as soon as that happens.
One has to be content to just sit and patiently wait for the news, which, IMO, will begin with financial details first, which is likely to involve the UK. Perhaps Les is still there, as others have indicated, busily attending to that... whatever "that" is?