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Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2019

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, 2018			8,726,092						$	11.23
Options granted			4,530,288						$	9.68
Options exercised			(806,226)						$	5.08
Options canceled			(2,620,867)						$	12.39
Options outstanding at December 31, 2019			9,829,287						$	10.71					7.91						$	7,472
Options vested and expected to vest at December 31, 2019			9,829,287						$	10.71					7.91						$	7,472
Options exercisable at December 31, 2019			3,993,645						$	10.43					6.54						$	5,442

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, 2018			322,701
RSUs awarded			834,745
RSUs released			(118,807)
RSUs forfeited			(175,789)
RSUs outstanding at December 31, 2019			862,850						1.22						$	7,222
RSUs vested and expected to vest at December 31, 2019			862,850						1.22						$	7,222

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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.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
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Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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-Publisher FASB
-Name Accounting Standards Codification
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