Emergent BioSolutions Inc. — Director's Dealing 2011

Mar 9, 2011

SEC Form 3 — Initial Statement of Beneficial Ownership

Issuer: Emergent BioSolutions Inc. (EBS)
CIK: 0001367644
Period of Report: 2011-03-01

Reporting Person: Havey Adam (EVP, BioDefense Division)

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	5200	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Employee Stock Option (right to buy)	$7.00	2015-03-10	Common Stock (6667)		Direct
Employee Stock Option (right to buy)	$18.90	2016-03-09	Common Stock (21800)		Direct
Employee Stock Option (right to buy)	$15.91	2017-03-08	Common Stock (10400)		Direct

Footnotes

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

F2: These restricted stock units vest in three equal annual installments beginning on the first anniversary of the date of grant, assuming 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 was intitally granted with respect to 20,000 shares of Common Stock, 13,333 of which have previously vested and been exercised, and will vest with respect to the remaining shares on March 11, 2011.

F4: The option is vested with respect to 7,267 shares of Common Stock and will vest with respect to the remaining shares as follows: 7,266 shares on March 10, 2011 and 7,267 shares on March 10, 2012.

F5: The option is vested with respect to 3,467 shares of Common Stock and will vest with respect to the remaining shares as follows: 3,466 shares on March 8, 2012 and 3,467 shares on March 8, 2013.