December 17, 2018

VIA EDGAR SUBMISSION
Securities and Exchange Commission
Division of Corporation Finance
100 F Street, NE
Washington, DC 20549
 

Attention: Christine Torney, Staff Accountant

RE: 
Emergent BioSolutions Inc.
 
 
Form 10-K for the Fiscal Year Ended December 31, 2017
 
 
Filed February 23, 2018
 
 
Form 10-Q for the Quarterly Period Ended September 30, 2018
 
 
Filed November 2, 2018
Form 8-K filed November 1, 2018
 
 
File No. 001-33137                                                                             
 

Ms. Torney:
 
Emergent BioSolutions Inc. (the “Company”) is sending this letter to confirm the extension of time within which it will respond to the Staff’s comment letter dated December 12, 2018, relating to the Company's Annual Report on Form 10-K for the year ended December 31, 2017, Quarterly Report on Form 10-Q for the quarter ended September 30, 2018 and Form 8-K, filed November 1, 2018.  As agreed, the Company will file its written response to the Staff's comment letter by no later than Friday, January 11, 2019.

If you have any questions, or require any additional information, please contact Brian Millard, Vice President, Corporate Controller, Finance and Administration at (240) 631-3220.  Thank you for your assistance.

Regards,

By: /S/ RICHARD S. LINDAHL
Richard S. Lindahl
Executive Vice President,
Chief Financial Officer and Treasurer


CC: Jim B. Rosenberg, Senior Assistant Chief Accountant