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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1001233	Sangamo Biosciences Inc	SGMO	Biological Products, (No Disgnostic Substances) (2836)	680359556

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1343543	D Philip Gregory	C/O Sangamo Biosciences Inc. Point Richmond Tech Cntr, 501 Canal Blvd Richmond CA 94804	Cso & Vice President, Research	No	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Disposition	2010-12-08	2,500	$6.00	12,433	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Employee Stock Option (Right to Buy)	Acquisiton	2010-12-08	100,000	$0.00	100,000	$5.70

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
100,000		2020-12-07	No	4	A	Direct

Footnotes

The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 8, 2010.
The stock option vests and becomes exercisable for twenty-five percent of the shares upon the optionee's completion of one year of service measured from the grant date and vest and become exercisable for the balance of the shares in thirty-six successive equal monthly installments upon his or her completion of each additional month of service thereafter.