X0306 4 2017-05-08 0 0000792977 AMAG PHARMACEUTICALS INC. AMAG 0001661887 Grund Nicholas C/O AMAG PHARMACEUTICALS, INC. 1100 WINTER STREET WALTHAM MA 02451 0 1 0 0 Chief Commercial Officer Common Stock 2017-05-08 4 F 0 3483 18.55 D 48517 D Represents shares withheld to satisfy the reporting person's tax obligations in connection with the vesting of 10,665 restricted stock units ("RSUs") on January 4, 2017. Due to the black-out policies implemented by AMAG Pharmaceuticals, Inc. (the "Issuer"), the shares of the Issuer's Common Stock underlying such vested RSUs were not delivered to the reporting person until May 8, 2017, at which time 3,483 shares were withheld to satisfy the reporting person's applicable tax obligations. Nancy R. Smith, attorney-in-fact 2017-05-10