Reporting on Activity Stream


I would like to report of specific activity stream - the goal is to see which deals are slipping through quarters and how many times. 

I though I could use the activity stream to see the changes of the Expected Close Date.

However, I cannot seem to navigate to build such report. Is it possible to build such report? I also tired using a ready dashboard, but I could not filter the activity only to the ECD field. 

Let me know how you solved that to understand changes on an Opportunity.