European shares finished Friday's session slightly higher, with investors contemplating M&A activity and speculation and ongoing tensions in Iraq.

The pan-European FTSEurofirst 300 index inched higher for most of the session and finished narrowly positive at a provisional 1,396.1 points. This was nearly 0.5 percent higher on the week and close to the 6-1/2-year high of 1,397.5 reached during the session.