EX-1 2 ex1.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 and sale of shares on the NASDAQ Global Market.  Certain of the prices reported below reflect the weighted average purchase or sale price of the shares of Common Stock purchased or sold 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
1/21/2014
Sale
   $ 8.4269   1   50060
1/22/2014
Sale
   $ 8.3472   2   20000
1/23/2014
Sale
   $ 8.3304   3   32000
1/24/2014
Sale
   $ 8.4208   4   26600
1/27/2014
Sale
   $ 8.1957   5   7000
1/28/2014
Sale
   $ 8.3835   6   59699
1/29/2014
Sale
   $ 8.5300       1000
1/29/2014
Sale
   $ 9.6572   7   54000
1/29/2014
Sale
   $ 10.1776   8   21500
1/30/2014
Sale
   $ 10.0961   9   60115
1/31/2014
Sale
   $ 9.8592   10   73301
2/3/2014
Sale
   $ 9.9855   11   75000
2/4/2014
Sale
   $ 9.9349   12   41500
2/5/2014
Sale
   $ 9.9428   13   59966
2/6/2014
Sale
   $ 9.8388   14   29128
2/7/2014
Sale
   $ 9.9059   15   22000
2/10/2014
Sale
   $ 10.0934   16   28380
2/11/2014
Sale
   $ 10.0462   17   34119
2/12/2014
Sale
   $ 9.9373   18   13420
2/13/2014
Sale
   $ 10.2923   19   65746
2/14/2014
Sale
   $ 10.2262   20   41000
2/18/2014
Sale
   $ 10.7295   21   69500
2/19/2014
Sale
   $ 11.0038   22   60947
2/20/2014
Sale
   $ 11.1349   23   56100
2/21/2014
Sale
   $ 11.9801   24   81376
2/24/2014
Sale
   $ 12.1611   25   78100
2/25/2014
Sale
   $ 12.0987   26   30000
2/26/2014
Sale
   $ 12.1875   27   33044
2/27/2014
Sale
   $ 12.5163   28   106600
2/28/2014
Sale
   $ 12.5744   29   8800
3/3/2014
Sale
   $ 12.5385   30   107790
3/4/2014
Purchase
   $ 13.0800       1000
3/4/2014
Sale
   $ 13.0821   31   72074
3/5/2014
Sale
   $ 13.3917   32   75825
3/6/2014
Sale
   $ 13.0437   33   86246
3/7/2014
Sale
   $ 13.1354   34   44000
3/10/2014
Sale
   $ 13.4804   35   69700
3/11/2014
Sale
   $ 13.7544   36   60898
3/12/2014
Sale
   $ 13.4527   37   87100
3/13/2014
Sale
   $ 13.1912   38   3195
3/17/2014
Sale
   $ 13.9288   39   185825
3/18/2014
Sale
   $ 14.4440   40   130630
 
1 This transaction was executed in multiple trades at prices ranging from $8.27 – 8.82. 
2 This transaction was executed in multiple trades at prices ranging from $8.24 – 8.47.
3 This transaction was executed in multiple trades at prices ranging from $8.19 – 8.47.
5 This transaction was executed in multiple trades at prices ranging from $8.17 – 8.21. 
6 This transaction was executed in multiple trades at prices ranging from $8.19 – 8.5050. 
7 This transaction was executed in multiple trades at prices ranging from $9.05 – 10.05. 
8 This transaction was executed in multiple trades at prices ranging from $10.07 – 10.48. 
9 This transaction was executed in multiple trades at prices ranging from $9.89 – 10.50. 
10 This transaction was executed in multiple trades at prices ranging from $9.70 – 10.00. 
11 This transaction was executed in multiple trades at prices ranging from $9.68 – 10.15. 
12 This transaction was executed in multiple trades at prices ranging from $9.65 – 10.26. 
13 This transaction was executed in multiple trades at prices ranging from $9.77 – 10.00. 
14 This transaction was executed in multiple trades at prices ranging from $9.76 – 10.04. 
15 This transaction was executed in multiple trades at prices ranging from $9.78 – 10.05. 
16 This transaction was executed in multiple trades at prices ranging from $10.04 – 10.15. 
17 This transaction was executed in multiple trades at prices ranging from $9.90 – 10.12. 
18 This transaction was executed in multiple trades at prices ranging from $9.90 – 9.96. 
19 This transaction was executed in multiple trades at prices ranging from $9.90 – 10.60. 
20 This transaction was executed in multiple trades at prices ranging from $10.00 – 10.32. 
21 This transaction was executed in multiple trades at prices ranging from $10.24 – 11.06. 
22 This transaction was executed in multiple trades at prices ranging from $10.80 – 11.14. 
23 This transaction was executed in multiple trades at prices ranging from $11.00 – 11.25. 
24 This transaction was executed in multiple trades at prices ranging from $11.60 – 12.24. 
25 This transaction was executed in multiple trades at prices ranging from $11.66 – 12.37. 
26 This transaction was executed in multiple trades at prices ranging from $11.99 – 12.26. 
27 This transaction was executed in multiple trades at prices ranging from $11.94 – 12.36. 
28 This transaction was executed in multiple trades at prices ranging from $12.09 – 12.74. 
29 This transaction was executed in multiple trades at prices ranging from $12.45 – 12.84. 
30 This transaction was executed in multiple trades at prices ranging from $12.30 – 12.85. 
31 This transaction was executed in multiple trades at prices ranging from $12.98 – 13.35. 
32 This transaction was executed in multiple trades at prices ranging from $13.00 – 13.59. 
33 This transaction was executed in multiple trades at prices ranging from $12.77 – 13.15. 
34 This transaction was executed in multiple trades at prices ranging from $12.90 – 13.25. 
35 This transaction was executed in multiple trades at prices ranging from $13.19 – 13.64. 
36 This transaction was executed in multiple trades at prices ranging from $13.30 – 14.25. 
37 This transaction was executed in multiple trades at prices ranging from $13.15 – 13.69. 
38 This transaction was executed in multiple trades at prices ranging from $13.18 – 13.20. 
39 This transaction was executed in multiple trades at prices ranging from $13.56 – 14.12. 
40 This transaction was executed in multiple trades at prices ranging from $14.08 – 14.75.