Given short term purchases at 35.5/share in total of 150M (recurring dilution until finished) and current shares outstanding, short term book value would be 19.22$ / share.
Plus, as achievement of milestones is uncertain.
Although, cash burn is certain.
Considering imminent dilution to upto 19.22$ / share uncertainties on any milestones, imminent recurring cash-burn, and debt, the stock is trading at a significant premium.
Hence, a short tag!