X0303 4 2009-05-21 0 0001367644 Emergent BioSolutions Inc. EBS 0001193522 SULLIVAN LOUIS W 1 0 0 0 Director Stock Option (right to buy) 11.67 2009-05-21 4 A 0 21600 0 A 2019-05-20 Common Stock 21600 21600 D The option will vest in three equal installments on May 21, 2010, May 21, 2011 and May 21, 2012 or, if the Company's Annual Meeting of Stockholders occurs prior to such date for any year, on the day prior to such year's Annual Meeting of Stockholders /s/R. Don Elsey, attorney-in-fact 2009-05-26