X0303 4 2009-08-11 0 0001367644 Emergent BioSolutions Inc. EBS 0001380187 Abdun-Nabi Daniel 2273 RESEARCH BLVD, SUITE 400 ROCKVILLE MD 20850 1 1 0 0 President Common Stock 2009-08-11 4 S 0 4800 17.09 D 28300 D Common Stock 2009-08-11 4 S 0 500 17.11 D 27850 D Common Stock 2009-08-11 4 S 0 500 17.13 D 27350 D Common Stock 2009-08-11 4 S 0 200 17.15 D 27150 D Common Stock 2009-08-11 4 S 0 500 17.18 D 26650 D Common Stock 2009-08-11 4 S 0 100 17.20 D 26550 D Common Stock 2009-08-11 4 S 0 500 17.21 D 26050 D Common Stock 2009-08-11 4 S 0 100 17.22 D 25950 D Common Stock 2009-08-11 4 S 0 300 17.31 D 25650 D Common Stock 2009-08-11 4 S 0 100 17.34 D 25550 D Common Stock 2009-08-11 4 S 0 600 17.38 D 24950 D Common Stock 2009-08-11 4 S 0 1100 17.40 D 23850 D Common Stock 2009-08-11 4 S 0 200 17.43 D 23650 D Common Stock 2009-08-11 4 S 0 700 17.45 D 22950 D Common Stock 2009-08-11 4 S 0 200 17.53 D 22750 D Common Stock 2009-08-11 4 S 0 300 17.57 D 22450 D Common Stock 2009-08-11 4 S 0 300 17.61 D 22150 D /s/R. Don Elsey, attorney-in-fact 2009-08-13