Normal investor ,. Many of us share your frustration with pps drop. It's steadily going down after sudden move to .008. Those that took profits maybe waiting 30 days to avoid wash sale before they get back in. Others may have seen Qtr 4 report massive dilution as a negative.
Everyone has their different reasons to sell and when. I look at biel pps now as a buying opportunity prior to sales announcement. I'm shaking piggie bank, looking between cushions, car coin tray, etc to try and buy more. This will be a great year for BIEL!