Biotech Values

[rwwine]

Here perhaps is a dumb question, but one that I always wondered about but never asked.

If an analyst/Research Firm "up grades" a stock to a Strong Buy, can folks monitor weather or not that firm starts selling on the up grade while telling everyone else that they recommend buying?

Likewise, when that same firm down grades a stock, can they be monitored for buying activity as the pps goes down on the down grade?

Does the Gov/Sec monitor such activity?

TIA