| Symbol | Relationship | Date | Transaction | Cost | # Shares | Value($) | Total Shares | Form 4 |
| COT | Director | May 05, 2017 | Option Exercise | $12.74 | 9,340 | 118,992 | 73,742 | May 08, 2017, 08:49 PM |
| COT | Director | May 06, 2016 | Option Exercise | $14.36 | 6,894 | 98,998 | 64,402 | May 06, 2016, 06:39 PM |
| COT | Director | May 08, 2015 | Option Exercise | $9.00 | 11,000 | 99,000 | 57,508 | May 11, 2015, 05:11 PM |
| COT | Director | May 08, 2014 | Option Exercise | $7.24 | 11,188 | 81,001 | 46,508 | May 09, 2014, 05:37 PM |
| COT | Director | May 02, 2013 | Option Exercise | $9.29 | 8,719 | 81,000 | 35,320 | May 03, 2013, 07:51 PM |
| COT | Director | Mar 04, 2013 | Sale | $9.75 | 13,000 | 126,750 | 26,601 | Mar 06, 2013, 05:12 PM |
| COT | Director | May 03, 2012 | Option Exercise | $6.77 | 9,601 | 64,999 | 39,601 | May 07, 2012, 05:41 PM |
| COT | Director | Nov 08, 2011 | Sale | $7.07 | 12,311 | 87,039 | 30,000 | Nov 09, 2011, 05:05 PM |
| COT | Director | Nov 07, 2011 | Sale | $7.10 | 15,300 | 108,630 | 42,311 | Nov 09, 2011, 05:05 PM |
| COT | Director | May 12, 2011 | Option Exercise | $3.66 | 25,000 | 91,500 | 82,611 | May 13, 2011, 05:05 PM |
| COT | Director | May 12, 2011 | Sale | $8.34 | 25,000 | 208,500 | 57,611 | May 13, 2011, 05:05 PM |
| COT | Director | May 06, 2011 | Option Exercise | $8.54 | 7,611 | 64,998 | 57,611 | May 09, 2011, 05:36 PM |
| COT | Director | Mar 05, 2010 | Sale | $7.12 | 13 | 93 | 50,000 | Feb 23, 2011, 05:15 PM |
| COT | Director | Nov 08, 2010 | Sale | $8.33 | 24,139 | 201,078 | 50,013 | Nov 09, 2010, 12:49 PM |
| Symbol | Relationship | Date | Transaction | Value($) |
| COT | Director | May 05, 2017 | Option Exercise | 118,992 |
| COT | Director | May 06, 2016 | Option Exercise | 98,998 |
| COT | Director | May 08, 2015 | Option Exercise | 99,000 |
| COT | Director | May 08, 2014 | Option Exercise | 81,001 |
| COT | Director | May 02, 2013 | Option Exercise | 81,000 |
| COT | Director | Mar 04, 2013 | Sale | 126,750 |
| COT | Director | May 03, 2012 | Option Exercise | 64,999 |
| COT | Director | Nov 08, 2011 | Sale | 87,039 |
| COT | Director | Nov 07, 2011 | Sale | 108,630 |
| COT | Director | May 12, 2011 | Option Exercise | 91,500 |
| COT | Director | May 12, 2011 | Sale | 208,500 |
| COT | Director | May 06, 2011 | Option Exercise | 64,998 |
| COT | Director | Mar 05, 2010 | Sale | 93 |
| COT | Director | Nov 08, 2010 | Sale | 201,078 |