POSITRON CORP | 2013 | FY | 3


A summary of warrant activity based on common stock equivalents is as follows:
 
 
 
Number of Shares
 
Exercise
Price
 
Weighted
Average
Exercise
Price
 
Balance at December 31, 2011
 
183,583,338
 
$
0.01-0.15
 
$
0.05
 
Warrants exercised
 
-
 
 
-
 
 
-
 
Warrants expired
 
(134,583,338)
 
$
0.01-0.03
 
$
0.03
 
Warrants issued with common and Series B Preferred stock in private placement
 
114,850,000
 
$
0.01
 
$
0.01
 
Warrants issued with convertible debentures and notes payable
 
103,500,000
 
$
0.01
 
$
0.01
 
Balance at December 31, 2012
 
267,350,000
 
$
0.01-0.15
 
$
0.03
 
Warrants exercised
 
-
 
 
-
 
 
-
 
Warrants expired
 
(144,850,000)
 
$
0.01-0.15
 
$
0.02
 
Warrants issued with convertible debentures and notes payable
 
-
 
$
-
 
$
-
 
Balance at December 31, 2013
 
122,500,000
 
$
0.01-0.02
 
$
0.01
 

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