Emergent BioSolutions Inc. — Director's Dealing 2012

Jan 6, 2012

SEC Form 3 — Initial Statement of Beneficial Ownership

Issuer: Emergent BioSolutions Inc. (EBS)
CIK: 0001367644
Period of Report: 2011-12-21

Reporting Person: Chatfield Steven (EVP & President, BioSciences)

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	11783	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Employee Stock Option (right to buy)	$15.91	2017-03-08	Common Stock (17200)		Direct
Employee Stock Option (right to buy)	$24.15	2018-03-14	Common Stock (12095)		Direct

Footnotes

F1: Consists of restricted stock units granted under the Amended and Restated Emergent BioSolutions Inc. 2006 Stock Incentive Plan.

F2: These shares consist of (i) 5,733 Restricted Stock Units from one grant that will vest with respect to 2,866 shares on March 8, 2012 and with respect to 2,867 shares on March 8, 2013, and (ii) 6,050 Restricted Stock Units from another grant that will vest in three equal installments on March 14, 2012, March 14, 2013 and March 14, 2014. Vesting is subject to continued service with the Company. Each restricted stock unit represents the right of the Reporting Person to receive one share of common stock of Emergent BioSolutions Inc., subject to adjustment as provided in the grant agreement.

F3: The option has vested with respect to 5,734 options, which have been disposed of. The grant will vest with respect to the remaining options in two equal installments on March 8, 2012 and March 8, 2013

F4: The option will vest in three equal installments on March 14, 2012, March 14, 2013 and March 14, 2014.