Emergent BioSolutions Inc. — Director's Dealing 2011

Jun 2, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Emergent BioSolutions Inc. (EBS)
CIK: 0001367644
Period of Report: 2011-05-31

Reporting Person: Abdun-Nabi Daniel (Director, President & COO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-05-31	Common Stock	M	75000	$7.00	Acquired	115830	Direct
2011-05-31	Common Stock	S	75000	$24.91	Disposed	40830	Direct
2011-05-31	Common Stock	M	25000	$8.43	Acquired	65830	Direct
2011-05-31	Common Stock	S	25000	$24.91	Disposed	40830	Direct
2011-06-01	Common Stock	M	30087	$10.13	Acquired	10743	Direct
2011-06-01	Common Stock	S	30087	$24.18	Disposed	40830	Direct
2011-06-01	Common Stock	M	30000	$13.42	Acquired	70830	Direct
2011-06-01	Common Stock	S	30000	$24.18	Disposed	40830	Direct
2011-06-01	Common Stock	M	13361	$8.43	Acquired	54191	Direct
2011-06-01	Common Stock	S	13361	$24.18	Disposed	40830	Direct
2011-06-01	Common Stock	S	5067	$23.99	Disposed	35763	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-05-31	Employee Stock Option (right to buy)	$7.00	M	75000	Disposed	2015-03-10	Common Stock (75000)	Direct
2011-05-31	Employee Stock Option (right to buy)	$7.00	M	25000	Disposed	2014-06-13	Common Stock (25000)	Direct
2011-06-01	Employee Stock Option (right to buy)	$10.13	M	30087	Disposed	2013-12-12	Common Stock (30087)	Direct
2011-06-01	Employee Stock Option (right to buy)	$13.42	M	30000	Disposed	2014-04-01	Common Stock (30000)	Direct
2011-06-01	Employee Stock Option (right to buy)	$8.43	M	13361	Disposed	2014-06-13	Common Stock (13361)	Direct

Footnotes

F1: The option is fully vested.