X0202 4 2008-02-20 0 0000792977 AMAG PHARMACEUTICALS INC. AMAG 0001225855 LEWIS JEROME M C/O AMAG PHARMACEUTICALS, INC. 125 CAMBRIDGE PARK DRIVE CAMBRIDGE MA 02140 0 1 0 0 VP of Scientific Operations Common Stock 2008-02-20 4 S 0 5000 50.52 D 12167 D 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 this date were sold in multiple transactions. This price is the weighted average sales price per share of all shares sold on this date; the actual sale prices per share ranged from $50.00 to $51.24. Mr. Lewis owns such shares jointly with his spouse. /s/ Joseph L. Farmer, attorney-in-fact 2008-02-22