X0306 4 2017-05-18 0 0000792977 AMAG PHARMACEUTICALS INC. AMAG 0001276038 SANTINI GINO C/O AMAG PHARMACEUTICALS, INC. 1100 WINTER STREET WALTHAM MA 02451 1 0 0 0 Common Stock 2017-05-18 4 A 0 4545 A 19510 D Stock Option (Right to Buy) 19.25 2017-05-18 4 A 0 10110 A 2027-05-18 Common Stock 10110 10110 D Each restricted stock unit represents a contingent right to receive one share of Common Stock of AMAG Pharmaceuticals, Inc. (the "Issuer"). These shares of Common Stock are issuable pursuant to a grant of restricted stock units pursuant to the Issuer's Fourth Amended & Restated 2007 Equity Incentive Plan (the "Plan") that will vest in twelve equal monthly installments over one year beginning on the first day of the first full month following the Issuer's annual meeting of stockholders, however, delivery of the shares is deferred until the earlier of (a) one year from the date of grant and (b) the date of the director's separation from service to the Issuer. Not applicable. Grant of stock option pursuant to the Plan. This option will vest and become exercisable in twelve equal monthly installments over one year beginning on the first day of the first full month following the Issuer's annual meeting of stockholders. Nancy R. Smith, attorney-in-fact 2017-05-22