X0303 4 2011-02-25 1 0000892025 MARTEK BIOSCIENCES CORP MATK 0001284504 BEERY JAMES 6480 DOBBIN ROAD COLUMBIA MD 21045 1 0 0 0 Common Stock 2011-02-25 4 A 0 6048 0.00 A 6048 D Common Stock 2011-02-25 4 D 0 6048 31.50 D 0 D Restricted Stock Units 2011-02-25 4 M 0 2533 0.00 D Common Stock 2533 0 D Represents shares of Martek's common stock acquired on the vesting of restricted stock units originally granted in March 2009 and 2010. Pursuant to Martek's Amended and Restated 2004 Stock Incentive Plan and the Agreement and Plan of Merger, dated December 20, 2010, between Martek, Koninklijke DSM N.V. and Greenback Acquisition Corporation ("Purchaser"), immediately prior to the consummation of the merger of Purchaser (the "Merger") with and into Martek, the restricted stock units vested in full and were settled for shares of common stock with the right to receive the per share Merger consideration of $31.50. The Merger was consummated on February 25, 2011. Disposed of pursuant to the Merger. Each restricted stock unit represents a contingent right to receive one share of Martek common stock. These restricted stock units, which were to vest on the earlier of the one-year anniversary of their grant date of March 19, 2009 or the date of the first annual meeting after the grant date, had their vesting accelerated pursuant to the Merger Agreement and were settled for shares of common stock of Martek. /s/ James R. Beery By: David M. Feitel Attorney-in-fact James R. Beery 2011-03-01