Stock Trading History of Chatfield Steven

The following table details the trading activities (stock purchases, stock sales, and stock option exercises) reported to the Securities and Exchange Commission (SEC) by insider Chatfield Steven since year 2005. The trader's CIK number is 1380176. At the time of this reporting, Chatfield Steven is the President EPD UK & CSO of Emergent Biosolutions Inc. (stock ticker symbol EBS).

Stock purchases, sales, and option exercises reported by *Chatfield Steven* since 2005.
Trade Date	Symbol	Company Name (Issuer)	Trade Type	Shares	Price ($)	Value ($)
2007-08-16	EBS	Emergent Biosolutions Inc.	Sale	15,179	8.13	123,384
2007-08-16	EBS	Emergent Biosolutions Inc.	Option Exercise	19,180	2.74	52,553
2007-08-16	EBS	Emergent Biosolutions Inc.	Sale	4,001	8.55	34,202
2007-08-02	EBS	Emergent Biosolutions Inc.	Sale	15,600	9.06	141,375
2007-08-01	EBS	Emergent Biosolutions Inc.	Sale	1,300	9.27	12,055
2007-08-01	EBS	Emergent Biosolutions Inc.	Sale	21,462	9.02	193,544
2007-02-23	EBS	Emergent Biosolutions Inc.	Option Exercise	38,362	2.74	105,111

Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Chatfield Steven (President EPD UK & CSO of Emergent Biosolutions Inc. at the time of this reporting) see the Securities and Exchange Commission (SEC) website.