EX-1 2 ex_1.htm EXHIBIT 1

EXHIBIT 1
 
TRANSACTIONS DURING PAST 60 DAYS
 
The Reporting Persons engaged in the following transactions in shares of Common Stock of the Company during the past 60 days.  Such transactions involved the purchase of shares on the NASDAQ Global Market.  Certain of the prices reported below reflect the weighted average purchase price of the shares of Common Stock purchased on the relevant date.  The Reporting Persons hereby undertake to provide upon request to the SEC staff full information regarding the number of shares and prices at which each transaction was effected.

Date
  
Type
  
Price
    
Shares
12/3/2013
  
Purchase
  
 $    6.4047
1
  
36376
12/4/2013
  
Purchase
  
 $    6.3812
2
  
22544
12/5/2013
  
Purchase
  
 $    6.3762
3
  
16766
12/6/2013
  
Purchase
  
 $    6.4605
4
  
23566
12/9/2013
  
Purchase
  
 $    6.3767
5
  
21873
12/10/2013
  
Purchase
  
 $    6.4949
6
  
29300
12/11/2013
  
Purchase
  
 $    6.4958
7
  
16679
12/12/2013
  
Purchase
  
 $    6.4967
8
  
21141
12/13/2013
  
Purchase
  
 $    6.4814
9
  
20190
12/16/2013
  
Purchase
  
 $    6.4967
10
  
5531
12/17/2013
  
Purchase
  
 $    6.5000
    
354
12/18/2013
  
Purchase
  
 $    6.4963
11
  
30885
12/19/2013
  
Purchase
  
 $    6.4893
12
  
17800
1/2/2014
  
Purchase
  
 $    6.4615
13
  
33000
1/3/2014
  
Purchase
  
 $    6.4659
14
  
54281
1/6/2014
  
Purchase
  
 $    6.4536
15
  
24386
1/7/2014
  
Purchase
  
 $    6.4746
16
  
74800
1/8/2014
  
Purchase
  
 $    6.4291
17
  
21941
1/9/2014
  
Purchase
  
 $    6.3908
18
  
27330
1/10/2014
  
Purchase
  
 $    6.4176
19
  
26525
1/13/2014
  
Purchase
  
 $    6.4465
20
  
17500
1/14/2014
  
Purchase
  
 $    6.5000
    
764
1/23/2014
  
Purchase
  
 $    6.4125
21
  
46430
1/24/2014
  
Purchase
  
 $    6.2864
22
  
52870
1/27/2014
  
Purchase
  
 $    6.2074
23
  
50000
1/28/2014
  
Purchase
  
 $    6.3462
24
  
27900
 
1 This transaction was executed in multiple trades at prices ranging from $6.34 – 6.50. 
2 This transaction was executed in multiple trades at prices ranging from $6.33 – 6.42. 
3 This transaction was executed in multiple trades at prices ranging from $6.34 – 6.43. 
4 This transaction was executed in multiple trades at prices ranging from $6.43 – 6.50. 
5 This transaction was executed in multiple trades at prices ranging from $6.32 – 6.40. 
6 This transaction was executed in multiple trades at prices ranging from $6.42 – 6.50. 
7 This transaction was executed in multiple trades at prices ranging from $6.46 – 6.50. 
8 This transaction was executed in multiple trades at prices ranging from $6.48 – 6.50. 
9 This transaction was executed in multiple trades at prices ranging from $6.43 – 6.50. 
10 This transaction was executed in multiple trades at prices ranging from $6.48 – 6.50. 
11 This transaction was executed in multiple trades at prices ranging from $6.45 – 6.50. 
12 This transaction was executed in multiple trades at prices ranging from $6.45 – 6.50. 
13 This transaction was executed in multiple trades at prices ranging from $6.44 – 6.50. 
14 This transaction was executed in multiple trades at prices ranging from $6.42 – 6.50. 
15 This transaction was executed in multiple trades at prices ranging from $6.39 – 6.50. 
16 This transaction was executed in multiple trades at prices ranging from $6.44 – 6.49. 
17 This transaction was executed in multiple trades at prices ranging from $6.37 – 6.48. 
18 This transaction was executed in multiple trades at prices ranging from $6.38 – 6.40. 
19 This transaction was executed in multiple trades at prices ranging from $6.29 – 6.45. 
20 This transaction was executed in multiple trades at prices ranging from $6.42 – 6.45. 
21 This transaction was executed in multiple trades at prices ranging from $6.36 – 6.50. 
22 This transaction was executed in multiple trades at prices ranging from $6.22 – 6.35. 
23 This transaction was executed in multiple trades at prices ranging from $6.11 – 6.25. 
24 This transaction was executed in multiple trades at prices ranging from $6.12 – 6.40.