Notice that all SEC transactions in the past two years are BUYS/exercises by insiders. The insiders own a lot of this stock. It was all priced above market with the exception of Blumberg's most recent transaction.
In the most recent Form 4, Blumberg combined some warrants at .25 that were expiring on 12/31 into fewer warrants at .12 and exercised them. He gave himself a really good deal this last time. That was the only one priced below market.
Each & every uptick in bid is taken. However it seems like at least today there’s some support. Till there are sellers at bargain basement prices, it’s very challenging for this stock price to go up.