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Basic and Diluted Net Loss Per Share | 6 Months Ended
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Jun. 30, 2017
Earnings Per Share [Abstract] |
Basic and Diluted Net Loss Per Share | NOTE 4—BASIC AND DILUTED NET LOSS PER SHARE Basic net loss per share has been computed by dividing the net loss by the weighted-average number of shares of common stock outstanding during the period. Diluted net loss per share is calculated by dividing net loss by the weighted-average number of shares of common stock and potential dilutive securities outstanding during the period. Because Sangamo is in a net loss position, diluted net loss per share excludes the effects of common stock equivalents consisting of stock options and restricted stock units, which are all anti-dilutive. The total number of shares subject to stock options and restricted stock units outstanding were excluded from consideration in the calculation of diluted net loss per share. Stock options and restricted stock units outstanding for the six months ended June 30, 2017 and 2016 were 9,898,588 and 9,408,253, respectively.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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