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Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2013

Equity [Abstract]

Summary of Stock Option Activity

A summary of Sangamo’s stock option activity is as follows:

		Number of Shares				Weighted- Average Exercise per Share Price				Weighted Average Remaining Contractual Term				Aggregate Intrinsic Value
										(In years)				(In thousands)
Options outstanding at December 31, 2012			9,184,346			$	6.21				6.46
Options granted			1,119,200			$	11.75
Options exercised			(1,715,123	)		$	4.74
Options canceled			(182,559	)		$	8.50
Options outstanding at December 31, 2013			8,405,864			$	7.20				6.26			$	56,425
Options vested and expected to vest at December 31, 2013			8,046,932			$	7.10				6.12			$	54,849
Options exercisable at December 31, 2013			5,800,931			$	6.84				5.05			$	41,073

Summary of Stock Options Outstanding

The following table summarizes information with respect to stock options outstanding at December 31, 2013:

		Options Outstanding and Exercisable								Options Exercisable
Range of Exercise Price		Number of Shares of common stock subject to options				Weighted Average Remaining Contractual Life				Number of Shares of common stock subject to options				Weighted Average Exercise Price
						(In years)
$2.55 – $3.25			212,844				7.77				59,647			$	2.57
$3.45 – $3.45			1,124,381				4.94				1,124,381			$	3.45
$3.80 – $5.26			661,565				3.33				596,146			$	4.54
$5.35 – $5.35			909,866				5.92				909,866			$	5.35
$5.41 – $5.41			1,134,524				8.89				270,040			$	5.41
$5.42 – $5.66			60,500				5.24				60,500			$	5.46
$5.70 – $5.70			945,120				6.93				676,970			$	5.70
$5.86 – $6.82			899,022				5.12				749,020			$	6.45
$6.92 – $11.99			365,342				5.42				267,361			$	8.68
$12.12 – $14.62			2,092,700				6.83				1,087,000			$	14.05
			8,405,864				6.26				5,800,931			$	6.84

Summary of Restricted Stock Unit Activity

A summary of Sangamo’s RSU activity is as follows:

		Number of Shares				Weighted Average Remaining Contractual Term				Aggregate Intrinsic Value
						(In years)				(In thousands)
RSUs outstanding at December 31, 2012			1,036,750
RSUs awarded			392,500
RSUs released			(341,843	)
RSUs forfeited			(23,750	)
RSUs outstanding at December 31, 2013			1,063,657				1.46			$	14,774
RSUs vested and expected to vest at December 31, 2013			925,882				1.43			$	12,860

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Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year.

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Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

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