X0304 4 2011-11-01 0001064863 AMERIGROUP CORP AGP 0001004537 CAPPS THOS E 4425 CORPORATION LANE VIRGINIA BEACH VA 23462 1 Common Stock 2011-11-01 4 M 0 26000.0000 38.6900 A 44121.0000 D Common Stock 2011-11-01 4 M 0 26000.0000 19.9600 A 70121.0000 D Common Stock 2011-11-01 4 M 0 7897.0000 25.7500 A 78018.0000 D Common Stock 2011-11-01 4 M 0 6441.0000 27.5500 A 84459.0000 D Common Stock 2011-11-01 4 M 0 6415.0000 25.6300 A 90874.0000 D Common Stock 2011-11-01 4 S 0 1410.0000 54.3351 D 89464.0000 D Common Stock 2011-11-01 4 S 0 6441.0000 53.4163 D 83023.0000 D Common Stock 2011-11-01 4 S 0 26000.0000 53.7292 D 57023.0000 D Common Stock 2011-11-01 4 S 0 38902.0000 53.8118 D 18121.0000 D Employee Stock Option (right to buy) 25.7500 2011-11-01 4 M 0 7897.0000 0.0000 D 2009-04-30 2015-05-08 Common Stock 7897.0000 0.0000 D Employee Stock Option (right to buy) 27.5500 2011-11-01 4 M 0 6441.0000 0.0000 D 2007-05-10 2013-05-10 Common Stock 6441.0000 0.0000 D Employee Stock Option (right to buy) 25.6300 2011-11-01 4 M 0 6415.0000 0.0000 D 2008-05-10 2014-05-10 Common Stock 6415.0000 0.0000 D Employee Stock Option (right to buy) 19.9600 2011-11-01 4 M 0 26000.0000 0.0000 D 2005-05-11 2014-05-11 Common Stock 26000.0000 0.0000 D Employee Stock Option (right to buy) 38.6900 2011-11-01 4 M 0 26000.0000 0.0000 D 2006-05-11 2015-05-11 Common Stock 26000.0000 0.0000 D The transactions reported on this Form 4 were effected pursuant to a 10b5-1 trading plan. The transactions reported on this Form 4 were effected pursuant to a 10b5-1 trading plan. Upon request by the SEC, the issuer or a security holder of the issuer, the Reporting Person undertakes to provide full information regarding the number of shares sold at each separate price. Represents the weighted average sales price per share. These shares were sold at prices per share that ranged from $54.28 to $54.4501 inclusive. Represents the weighted average sales price per share. These shares were sold at prices per share that ranged from $53.28 to $53.71 inclusive. Represents the weighted average sales price per share. These shares were sold at prices per share that ranged from $53.2706 to $54.2704 inclusive. Represents the weighted average sales price per share. These shares were sold at prices per share that ranged from $53.28 to $54.2709 inclusive. Vested options expire upon the earlier of (a) 7 years from the date of grant and (b) 2 years after termination of service with the Company. No consideration was paid for the Option. Vested options expire upon the earlier of (a) 10 years from the date of grant and (b) 90 days after termination of service with the Company. Vested options expire upon the earlier of (a) 7 years from the date of grant and (b) 90 days after termination of service with the Company. /s/ Nicholas J. Pace, attorney-in-fact 2011-11-02