EX-1 2 ex1.htm EXHIBIT 1 ex1.htm
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 sale of shares on the NASDAQ Global Select Market.  The prices reported below reflect the weighted average sale price of the shares of Common Stock 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
1/9/20121
  
Sell
  
$12.5251
  
3,992
1/10/20122
  
Sell
  
$12.4952
  
1,680
1/11/20123
  
Sell
  
$12.2359
  
6,500
1/12/20124
  
Sell
  
$12.0860
  
5,000
1/13/20125
  
Sell
  
$12.0106
  
4,100
1/23/20126
  
Sell
  
$13.6500
  
3,600
1/24/20127
  
Sell
  
$13.6025
  
4,000
1/25/20128
  
Sell
  
$13.7943
  
3,500
1/26/20129
  
Sell
  
$13.9139
  
3,600
1/27/201210
  
Sell
  
$13.9607
  
4,200
1/30/201211
  
Sell
  
$14.0578
  
4,500
1/31/2012
  
Sell
  
$14.0000
  
3,000
2/1/201212
  
Sell
  
$14.1841
  
4,100
2/2/201213
  
Sell
  
$14.5411
  
4,500
2/3/201214
  
Sell
  
$14.9200
  
4,000
2/6/201215
  
Sell
  
$15.0027
  
4,900
 
1 This transaction was executed in multiple trades at prices ranging from $12.50 – 12.60. 
2 This transaction was executed in multiple trades at prices ranging from $12.40 – 12.80. 
3 This transaction was executed in multiple trades at prices ranging from $12.23 – 12.25. 
4 This transaction was executed in multiple trades at prices ranging from $12.03 – 12.10. 
5 This transaction was executed in multiple trades at prices ranging from $12.00 – 12.02. 
6 This transaction was executed in multiple trades at prices ranging from $13.59 – 13.70. 
7 This transaction was executed in multiple trades at prices ranging from $13.538 – 13.69. 
8 This transaction was executed in multiple trades at prices ranging from $13.70 – 14.03. 
9 This transaction was executed in multiple trades at prices ranging from $13.90 – 13.95. 
10 This transaction was executed in multiple trades at prices ranging from $13.88 – 14.05. 
11 This transaction was executed in multiple trades at prices ranging from $14.00 – 14.15. 
12 This transaction was executed in multiple trades at prices ranging from $14.15 – 14.25. 
13 This transaction was executed in multiple trades at prices ranging from $14.50 – 14.59. 
14 This transaction was executed in multiple trades at prices ranging from $14.84 – 15.00. 
15 This transaction was executed in multiple trades at prices ranging from $14.94 – 15.07.
 
 
 
 
 
2/7/201216
  
Sell
  
$15.2067
  
3,000
2/8/201217
  
Sell
  
$15.1833
  
3,000
2/9/201218
  
Sell
  
$15.2667
  
3,000
2/10/201219
  
Sell
  
$15.0167
  
3,000
2/13/201220
  
Sell
  
$14.8667
  
3,000
2/14/201221
  
Sell
  
$13.6324
  
3,700
2/24/201222
  
Buy
  
$10.6385
  
70,600
2/27/201223
  
Buy
  
$10.4385
  
46,000
2/28/201224
  
Buy
  
$10.3872
  
47,162
2/29/201225
  
Buy
  
$10.2537
  
54,924
3/1/201226
  
Buy
  
$9.9274
  
46,239
3/2/201227
  
Buy
  
$10.2848
  
45,543
3/5/201228
  
Buy
  
$10.3611
  
34,962
3/6/201229
  
Buy
  
$9.9583
  
39,200
3/7/201230
  
Buy
  
$10.2929
  
46,926
3/8/201231
  
Buy
  
$10.4436
  
49,316

16 This transaction was executed in multiple trades at prices ranging from $15.15 – 15.26. 
17 This transaction was executed in multiple trades at prices ranging from $15.08 – 15.35. 
18 This transaction was executed in multiple trades at prices ranging from $15.25 – 15.30. 
19 This transaction was executed in multiple trades at prices ranging from $15.00 – 15.05. 
20 This transaction was executed in multiple trades at prices ranging from $14.68 – 15.00. 
21 This transaction was executed in multiple trades at prices ranging from $13.46 – 14.00. 
22 This transaction was executed in multiple trades at prices ranging from $10.59 – 10.68. 
23 This transaction was executed in multiple trades at prices ranging from $10.35 – 10.48. 
24 This transaction was executed in multiple trades at prices ranging from $10.32 – 10.40. 
25 This transaction was executed in multiple trades at prices ranging from $9.99 – 10.45. 
26 This transaction was executed in multiple trades at prices ranging from $9.70 – 10.10. 
27 This transaction was executed in multiple trades at prices ranging from $10.11 – 10.45. 
28 This transaction was executed in multiple trades at prices ranging from $10.18 – 10.40. 
29 This transaction was executed in multiple trades at prices ranging from $9.86 – 10.00. 
30 This transaction was executed in multiple trades at prices ranging from $10.24 – 10.36. 
31 This transaction was executed in multiple trades at prices ranging from $10.16 – 10.58.