250 million offering not good for current share holder will
add 55 million more shares minimum to float at 4.50. To get some one to step up to plate stock is usually offered at a discount to current market price, then the stock will fall there. If they offer the shares at 4 and the stock is at 4.50, it will drop that day to 4. So wait to add, this could trade down right up til that day.
Also note, Frost has been adding to other positions, but has curtailed his opk purchases. His last buy was at 3.89, expect this to get under 4 shortly, then you might consider nibbling.