You all know what's happening right? The shares in the secondary were purchased at $4.80. This who bought are selling for a profit as it moves above $4.80. Expect this stock to remain at $4.80 at least until this ongoing dilution is finished.
You're forgetting about the warrants. The $5 warrants are around $3 so the $6 warrants are probably worth at least $0.80. This means the stock was sold for about $4.00. I want to buy nwbo but will wait until it drops far closer to $4. I refuse to pay some 20% more that oppenheimer's clients.