Stock Trading History of Gerber William G

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 Gerber William G since year 2005. The trader's CIK number is 1228634. At the time of this reporting, Gerber William G is the Director of Sangamo Biosciences Inc (stock ticker symbol SGMO).

Stock purchases, sales, and option exercises reported by *Gerber William G* since 2005.
Trade Date	Symbol	Company Name (Issuer)	Trade Type	Shares	Price ($)	Value ($)
2007-12-06	SGMO	Sangamo Biosciences Inc	Sale	6,100	16.00	97,600
2007-09-24	SGMO	Sangamo Biosciences Inc	Sale	5,000	13.34	66,700
2007-08-24	SGMO	Sangamo Biosciences Inc	Sale	5,000	10.86	54,325
2007-07-23	SGMO	Sangamo Biosciences Inc	Sale	5,000	9.66	48,300
2007-06-25	SGMO	Sangamo Biosciences Inc	Sale	5,000	8.50	42,500
2007-06-18	SGMO	Sangamo Biosciences Inc	Sale	5,000	8.00	40,000

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 Gerber William G (Director of Sangamo Biosciences Inc at the time of this reporting) see the Securities and Exchange Commission (SEC) website.