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Net Loss per Share
 9 Months Ended
Sep. 30, 2016
Earnings Per Share [Abstract]  
Earnings Per Share [Text Block]
7. Net Loss per Share
 
Basic net loss per share is computed by dividing net loss by the weighted average number of common shares outstanding. Diluted net loss per share is computed by dividing net loss by the weighted average number of common shares outstanding including the effect of common share equivalents. Diluted net loss per share assumes the issuance of potential dilutive common shares outstanding for the period and adjusts for any changes in income and the repurchase of common shares that would have occurred from the assumed issuance, unless such effect is anti-dilutive. The number of options and warrants for the purchase of common stock that were excluded from the computations of net loss per common share, for the three and nine months ended September 30, 2016 were 16,372,451, and for the three and nine months ended September 30, 2015 were 8,331,020 and 15,360,828, respectively. 
 
The following tables set forth the computation of diluted net loss per weighted average number of shares outstanding attributable to Synthetic Biologics and Subsidiaries for the three and nine months ended September 30, 2016, and 2015 (in thousands except share and per share amounts): 
 
 
 
Three months ended September 30, 2016
 
Nine months ended September 30, 2016
 
 
 
Net loss
(Numerator)
 
Shares
(Denominator)
 
Per Share
Amount
 
Net Loss
(Numerator)
 
Shares
(Denominator)
 
Per Share
Amount
 
Net loss - Basic
 
$
(8,353)
 
 
91,441,687
 
$
(0.09)
 
$
(24,880)
 
 
91,095,990
 
$
(0.27)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Change in fair value of warrant liability
 
$
-
 
 
-
 
$
-
 
$
-
 
 
-
 
$
-
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Dilutive shares related to warrants
 
$
-
 
 
-
 
$
-
 
$
-
 
 
-
 
$
-
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Net loss - Dilutive
 
$
(8,353)
 
 
91,441,687
 
$
(0.09)
 
$
(24,880)
 
 
91,095,990
 
$
(0.27)
 
 
 
 
 
Three months ended September 30, 2015
 
Nine months ended September 30, 2015
 
 
 
Net loss
(Numerator)
 
Shares
(Denominator)
 
Per Share
Amount
 
Net Loss
(Numerator)
 
Shares
(Denominator)
 
Per Share
Amount
 
Net loss - Basic
 
$
(6,774)
 
 
85,974,751
 
$
(0.08)
 
$
(32,755)
 
 
77,300,375
 
$
(0.42)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Change in fair value of warrant liability
 
$
(4,141)
 
 
-
 
$
-
 
$
-
 
 
-
 
$
-
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Dilutive shares related to warrants
 
$
-
 
 
1,610,352
 
$
-
 
$
-
 
 
-
 
$
-
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Net loss - Dilutive
 
$
(10,915)
 
 
(87,585,103)
 
$
(0.12)
 
$
(32,755)
 
 
77,300,375
 
$
(0.42)