will spp effect share price

will the share purchase plan effect the current share price much? at the moment i'm pretty keen to purchase the full allotment of 3333 shares considering the $1.50 price balanced against the current market price. Also does the announcement of 'proof of concept' come during the SPP allotment time? This would radically effect the price depending on success or problems/delays in my opinion. Im a loyal GDY owner since 2001 but would probably sell about half of the 3333 SPP shares immediately on the allotment day of the 16th of June to make a modest instant profit - hopefully. Can anyone see the price dropping below $1.50 before the 16th?