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ROCKVILLE, MD, October 9, 2007—Emergent BioSolutions Inc. (NYSE: EBS) announced today that Ms. Denise Landry has joined the company as Senior Vice President, Quality with responsibility for managing and overseeing all Quality activities company-wide.  Ms. Landry has broad-based quality experience for pharmaceutical and biologics operations, including activities relating to all phases of product development, regulatory submissions, and compliance programs.  In addition, Mrs. Landry has extensive experience interacting with regulatory authorities including the U.S. Food and Drug Administration (FDA), the European Medicines Agency (EMEA) and the Medicines and Healthcare Product Regulatory Agency (MHRA) in the United Kingdom.

Fuad El-Hibri, chairman and chief executive officer of Emergent BioSolutions stated “I am pleased to welcome Ms. Denise Landry to Emergent BioSolutions as Senior Vice-President, Quality.  Her two decades of experience in the Quality programs will be a critical asset to our team.  Denise’s first-hand experience and breadth of knowledge make her uniquely qualified for such an important role in our company.”

Ms. Landry joins the company from MGI Pharma Inc. and its predecessor Guilford Pharmaceuticals, where she served as Vice President, Corporate Quality.  Prior to her 13 year tenure there, Ms. Landry was the Director Quality Assurance for Pharmaceutical Systems, Inc. and Quality Assurance Director for Smith & Nephew Solopak.  She began her career in the quality control field as a Service Quality Manager for Baxter Healthcare Corporation.

“I am very pleased to be joining the management team at Emergent BioSolutions, and I share their commitment to maintaining the highest quality standards in manufacturing and product development,” said Ms. Denise Landry.  “I have dedicated my career to this industry and look forward to leading and promoting continuous quality improvement throughout the company as it develops and manufactures products to protect life.”

Mrs. Landry holds a BA in Biology from Fisk University in Tennessee.  She is a member of the American Society of Quality Control and the Parenteral Drug Association.

About Emergent BioSolutions Inc.
Emergent BioSolutions Inc. is a biopharmaceutical company dedicated to one simple mission—to protect life.  We develop, manufacture and commercialize immunobiotics, consisting of vaccines and therapeutics that assist the body’s immune system to prevent or treat disease.  Our biodefense business focuses on immunobiotics for use against biological agents that are potential weapons of bioterrorism and biowarfare.  Our marketed product, BioThrax® (Anthrax Vaccine Adsorbed), is the only vaccine approved by the U.S. Food and Drug Administration for the prevention of anthrax disease.  Our commercial business focuses on immunobiotics for use against infectious diseases and other medical conditions that have resulted in significant unmet or underserved public health needs.  More information on the company is available at www.emergentbiosolutions.com.

Safe Harbor Statement
This press release includes forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Any statements, other than statements of historical fact, including statements regarding our strategy, future operations, future financial position, future revenues, projected costs, prospects, plans and objectives of management, including any statements containing the words “believes”, “expects”, “anticipates”, “plans”, “estimates” and similar expressions, are forward-looking statements. There are a number of important factors that could cause the company’s actual results to differ materially from those indicated by such forward-looking statements, including the execution of our strategy by our executive team; our plans to expand our manufacturing facilities and capabilities; the rate and degree of market acceptance and clinical utility of our products; our ongoing and planned development programs, preclinical studies and clinical trials; our ability to identify and acquire or in license products and product candidates that satisfy our selection criteria; the potential benefits of our existing collaboration agreements and our ability to enter into selective additional collaboration arrangements; the timing of and our ability to obtain and maintain regulatory approvals for our product candidates; our commercialization, marketing and manufacturing capabilities and strategy; our intellectual property portfolio; and other factors identified in the company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2007 and subsequent reports filed with the SEC. The company disclaims any intention or obligation to update any forward-looking statements as a result of developments occurring after the date of this press release.

ROCKVILLE, MD, May 16, 2007—Emergent BioSolutions Inc. (NYSE: EBS) announced today the consolidation of the president and chief operating officer position.  With this change, Daniel J. Abdun-Nabi, the company’s president, will also take on the role of chief operating officer. In this combined role, Mr. Abdun-Nabi will oversee all of the company’s product development, manufacturing and corporate affairs activities.  Mr. Abdun-Nabi will continue to report to Fuad El-Hibri, chairman and chief executive officer of the company.

Specifics of other management changes, which are also effective immediately, include:

• R. Don Elsey is being promoted to the position of senior vice president finance and administration.  Mr. Elsey was formerly vice president finance and administration.  Mr. Elsey will continue to retain his responsibilities as chief financial officer for the company and will now assume additional responsibility for investor relations and human resource activities.  Mr. Elsey will continue to report to Mr. El-Hibri, chairman and chief executive officer.

• Kyle W. Keese is being appointed to the position of senior vice president corporate affairs with responsibility for public affairs, marketing and sales and corporate development.  Mr. Keese was formerly senior vice president marketing and communications.

• Thomas K. Zink, M.D. is assuming the responsibility for clinical development in addition to medical affairs.  Dr. Zink, formerly senior vice president medical affairs, is now senior vice president medical and clinical development.  Dr. Zink will continue to retain his responsibilities as chief medical officer for the company and, in that capacity, will continue to report to Mr. El-Hibri, chairman and chief executive officer.

• Edward J. Arcuri, Ph.D., is resigning his position as chief operating officer.  The resignation is effective immediately.

“Today’s senior management consolidation and associated changes within our corporate organization are designed to strengthen the integration of our development and manufacturing organizations and to enhance the company’s positioning and capabilities in both the biodefense and commercial immunobiotic markets,” said Fuad El-Hibri, chairman and chief executive officer of Emergent BioSolutions Inc.

About Emergent BioSolutions Inc.
Emergent BioSolutions Inc. is a biopharmaceutical company dedicated to one simple mission–to protect life.  We develop, manufacture and commercialize immunobiotics, consisting of vaccines and therapeutics that assist the body’s immune system to prevent or treat disease.  Our biodefense business focuses on immunobiotics for use against biological agents that are potential weapons of bioterrorism or biowarfare.  Our marketed product, BioThrax® (Anthrax Vaccine Adsorbed), is the only vaccine approved by the U.S. Food and Drug Administration for the prevention of anthrax infection.  Our commercial business focuses on immunobiotics for use against infectious diseases and other medical conditions that have resulted in significant unmet or underserved public health needs.  More information on the company is available at www.emergentbiosolutions.com.

Safe Harbor Statement
This press release includes forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Any statements, other than statements of historical fact, including statements regarding our strategy, future operations, future financial position, future revenues, projected costs, prospects, plans and objectives of management, including our expected revenue growth and net earnings for 2007, and any other statements containing the words “believes”, “expects”, “anticipates”, “plans”, “estimates” and similar expressions, are forward-looking statements. There are a number of important factors that could cause the company’s actual results to differ materially from those indicated by such forward-looking statements, including our performance under BioThrax® sales contracts with the U.S. government, including the timing of deliveries under these contracts; our ability to obtain new BioThrax sales contracts with the U.S. government; our plans for future sales of BioThrax; our plans to pursue label expansions and improvements for BioThrax; our plans to expand our manufacturing facilities and capabilities; the rate and degree of market acceptance and clinical utility of our products; our ongoing and planned development programs, preclinical studies and clinical trials; our ability to identify and acquire or in license products and product candidates that satisfy our selection criteria; the potential benefits of our existing collaboration agreements and our ability to enter into selective additional collaboration arrangements; the timing of and our ability to obtain and maintain regulatory approvals for our product candidates; our commercialization, marketing and manufacturing capabilities and strategy; our intellectual property portfolio; our estimates regarding expenses, future revenue, capital requirements and needs for additional financing; and other factors identified in the company’s Annual Report on Form 10-K for the year ended December 31, 2006 and subsequent reports filed with the SEC. The company disclaims any intention or obligation to update any forward-looking statements as a result of developments occurring after the date of this press release.