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Net Loss Per Share (Tables)
 3 Months Ended
Mar. 31, 2015
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted
The following tables reconcile the components of the numerator and denominator included in the calculations of diluted loss per share:

Three Months Ended March 31,

2015

2014
Numerator



Net loss attributable to Inovio Pharmaceuticals, Inc.
$
(10,581,779
)

$
(10,821,460
)
Reflect adjustment for decrease in fair value of warrant liability
(289,773
)

—

Numerator for use in diluted loss per share
$
(10,871,552
)

$
(10,821,460
)




Denominator



Weighted average number of common shares outstanding
60,741,082


55,159,002

Effect of dilutive potential common shares from warrants
172,341


—

Denominator for use in diluted loss per share
60,913,423


55,159,002

 
 
 
 
Net loss per share, diluted
$
(0.18
)
 
$
(0.20
)
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share
The following table summarizes potential common shares that were excluded from the diluted net loss per share calculation because of their anti-dilutive effect:
 
As of March 31,
Common Stock Equivalents
2015
 
2014
Options to purchase common stock
5,930,767

 
4,737,095

Warrants to purchase common stock
727,969

 
1,613,793

Restricted stock units
130,000

 
—

Convertible preferred stock
8,456

 
9,558

Total
6,797,192

 
6,360,446