The warrants are a significant source of fresh share capital, that effectively distrubute fund raising over time, come without underwriting fees and do not result in any further ditultion  than has already be factored in.

  If Poet had to issue new shares through dealers these would have been sold at a discount to market, sucking the market price lower. It would have also come with fees of about 6% and a 50% alotment of cheap, long term warrants.