Everest Reinsurance Holdings Inc., a subsidiary of Everest Re Group Ltd, bought $64 million stock of Everest Re Group Ltd (RE). The first transaction was on Aug 17th at $80.76. The last insider transaction was on September 3rd at a price of $81.79. Most of the transactions were conducted at prices between $80-81. If you imitated these transactions and bought the shares at a price of $80.50, your return would have been 5.7%.
S&P 500 closed at 1094 on August 18th, its return is slightly less than 3% during the past month. So the excess return of this purchase is around 2.5%.