Emergent BioSolutions Inc.

REPORTABLE SEGMENT INFORMATION

The Company manages the business with a focus on three operating segments: (1) a Commercial Products segment consisting of NARCAN®Nasal Spray and KLOXXADO® Nasal Spray; (2) a MCM Products segment consisting of Anthrax - MCM, Smallpox - MCM and Other products and (3) a services segment consisting of our Bioservices offerings (“Services”). Commercial Products and MCM Products are our two reportable segments. The Services operating segment no longer meets the quantitative thresholds of a reportable segment and did not meet the aggregation criteria set forth in Accounting Standards Codification 280, Segment Reporting, and as such is categorized within “All other revenues” along with “Contracts and Grants”. The Company evaluates the performance of these reportable segments based on revenues and segment adjusted gross margin, which is a non-GAAP financial measure. Segment revenue includes external customer sales but does not include inter-segment services. The Company does not allocate contracts and grants revenue, R&D, SG&A, amortization of intangible assets, interest and other income (expense) or taxes to its evaluation of the performance of these segments.