what triggers an insider trading investigation 
a variety of activities can trigger an insider trading investigation by the sec this usually occurs around some large news event such as before a merger or acquisition where the sec or other regulatory agencies look for unusual movement in a specific security the bottom lineblotters are records of trades and are used for organizational purposes and tracking they re also useful for when adjustments or updates need to be made as well as being useful in spotting illegal trading like any type of record blotters can be designed and applied in a variety of contexts 