Without regular PRs, programs control The pattern is all too familiar for many small and micro cap stocks.
Unless a company regularly (every two to three days) issues PRs to attract interest (good or bad,) any rally is capped by increased shorting, and then algorithmic trading is used to drive the price lower and take out stop loss orders to create covering opportunities.
Since LLEN's last PR, probably 400K shares were shorted, and hte shorts needed to cover.
So now, with the lack of follow-up news or independent, mainstream articles about the company, the selling programs regains control and selectively sell into the bid until stop-losses are taken out.