X0303 4 2011-02-25 1 0000892025 MARTEK BIOSCIENCES CORP MATK 0001284502 EASTERLING BARNEY B JR 6480 DOBBIN ROAD COLUMBIA MD 21045 0 1 0 0 Sr VP Manufacturing Common Stock 2011-02-25 4 A 0 22736 0.00 A 22736 D Common Stock 2011-02-25 4 D 0 22736 31.50 D 0 D Restricted Stock Units 2011-02-25 4 M 0 3133 0.00 D Common Stock 3133 0 D Restricted Stock Units 2011-02-25 4 M 0 3384 0.00 D Common Stock 3384 0 D Restricted Stock Units 2011-02-25 4 M 0 5639 0.00 D Common Stock 5639 0 D Restricted Stock Units 2011-02-25 4 M 0 10580 0.00 D Common Stock 10580 0 D Represents shares of Martek's common stock acquired on the vesting of restricted stock units originally granted in January 2007, 2008, 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 part of a grant in January 2007 that vested in five annual installments beginning in March 2008, had their vesting accelerated pursuant to the Merger Agreement and were settled for shares of common stock of Martek. These restricted stock units, which were part of a grant in January 2008 that vested in five annual installments beginning in March 2009, had their vesting accelerated pursuant to the Merger Agreement and were settled for shares of common stock of Martek. These restricted stock units, which were part of a grant in January 2009 that vested in five annual installments beginning in March 2010, had their vesting accelerated pursuant to the Merger Agreement and were settled for shares of common stock of Martek. These restricted stock units, which were part of a grant in January 2010 that were to vest in five annual installments beginning in March 2011, had their vesting accelerated pursuant to the Merger Agreement and were settled for shares of common stock of Martek. /s/ Barney B. Easterling By: David M. Feitel Attorney-in-fact Barney B. Easterling 2011-03-01