Emergent BioSolutions Inc. — Director's Dealing 2012

May 9, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Emergent BioSolutions Inc. (EBS)
CIK: 0001367644
Period of Report: 2012-05-08

Reporting Person: El-Hibri Fuad (Director, Chairman, 10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-05-08	Common Stock	J	45647	—	Disposed	5591147	Indirect
2012-05-08	Common Stock	J	45647	—	Disposed	5545500	Indirect
2012-05-08	Common Stock	J	45647	—	Disposed	5499853	Indirect
2012-05-08	Common Stock	J	779951	—	Disposed	4719902	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	1514380	Direct
Common Stock	15845	Indirect
Common Stock	15845	Indirect
Common Stock	15845	Indirect
Common Stock	1524155	Indirect
Common Stock	1565043	Indirect

Footnotes

F1: The disposition reported on this line occurred as a result of a redemption by Intervac, L.L.C. of the membership interests of certain members of Intervac, L.L.C. There was no sale of securities by the reporting person.

F2: After the distribution, Intervac, L.L.C. is the direct owner of 4,719,902 shares of Common Stock. After the distribution, Mr. El-Hibri holds with his wife, as tenants by the entirety, an aggregate 51.5576% equity interest in Intervac, L.L.C. Mr. El-Hibri disclaims beneficial ownership of these shares for purposes of Section 16, except to the extent of his pecuniary interest in 2,317,130 shares.

F3: Mr. El-Hibri's direct holdings include restricted stock units granted under the Amended and Restated Emergent BioSolutions Inc. 2006 Stock Incentive Plan.

F4: These shares are held in a trust for the benefit of a child of the reporting person. The reporting person is trustee of this trust. The reporting person disclaims beneficial ownership of these securities, and the filing of this report is not an admission that the reporting person is the beneficial owner of these securities for purposes of Section 16 or for any other purpose.

F5: Mr. El-Hibri holds individually and with his wife, as tenants by the entirety, an aggregate 89.2% equity interest in Biovac, L.L.C. Biovac, L.L.C. is the direct owner of 1,524,155 shares of Common Stock. Mr. El-Hibri disclaims beneficial ownership of the shares of Common Stock directly owned by Biovac, L.L.C. for purposes of Section 16, except to the extent of his pecuniary interest in 1,359,546 shares.

F6: Mr. El-Hibri is the holder of a 40.17% (567,582.3 units) equity interest in BioPharm, L.L.C. BioPharm, L.L.C. is the direct owner of 1,565,043 shares of Common Stock. Mr. El-Hibri disclaims beneficial ownership of these shares for purposes of Section 16, except to the extent of his pecuniary interest in 628,678 shares.