X0304 4/A 2012-01-09 2012-01-10 0 0000792977 AMAG PHARMACEUTICALS INC. AMAG 0001317757 Farmer Joseph L C/O AMAG PHARMACEUTICALS, INC. 100 HAYDEN AVENUE LEXINGTON MA 02421 0 1 0 0 SVP, General Counsel Common Stock 2012-01-09 4 C 0 8000 A 8000 D Common Stock 2012-01-09 4 S 0 8000 17.0924 D 0 D Restricted Stock Units 2012-01-09 4 C 0 8000 A Common Stock 8000 8000 D The shares were acquired by the reporting person as a result of the partial vesting of a restricted stock unit grant described below. Not applicable. The sales reported on this Form 4 were effected pursuant to a 10b5-1 trading plan adopted by the reporting person. The shares sold on this date were sold in multiple transactions. The price is the weighted average sales price per share of all shares sold on this day. The actual sales prices range from $16.40-$17.955. Upon request by the Securities and Exchange Commission, the issuer, or any security holder of the issuer, the reporting person will provide full information regarding the number of shares sold at each price. Each restricted stock unit represents a contingent right to receive one share of common stock. Grant of restricted stock unit pursuant to the AMAG Pharmaceuticals, Inc. Second Amended and Restated 2007 Equity Incentive Plan. This grant vests as follows: 50% on January 7, 2012, 25% on January 7, 2013 and the remaining 25% on January 7, 2014. Joseph L. Farmer 2012-01-10