| Symbol | Relationship | Date | Transaction | Cost | # Shares | Value($) | Total Shares | Form 4 |
| COT | Vice President and Controller | Feb 17, 2015 | Option Exercise | $7.90 | 1,533 | 12,111 | 68,451 | Feb 19, 2015, 06:07 PM |
| COT | Vice President and Controller | Jan 03, 2015 | Option Exercise | $7.00 | 6,049 | 42,343 | 64,187 | Jan 06, 2015, 05:06 PM |
| COT | Vice President and Controller | Aug 21, 2014 | Sale | $7.37 | 12,000 | 88,445 | 70,236 | Aug 22, 2014, 05:01 PM |
| COT | Vice President and Controller | Dec 27, 2013 | Option Exercise | $8.06 | 2,038 | 16,426 | 74,736 | Dec 31, 2013, 05:05 PM |
| COT | Vice President and Controller | May 09, 2013 | Sale | $8.90 | 12,000 | 106,800 | 76,774 | May 10, 2013, 05:03 PM |
| COT | Vice President and Controller | Dec 29, 2012 | Option Exercise | $7.90 | 14,490 | 114,471 | 80,163 | Dec 31, 2012, 05:07 PM |
| COT | Vice President and Controller | Dec 10, 2012 | Sale | $8.30 | 4,000 | 33,200 | 94,653 | Dec 11, 2012, 05:21 PM |
| COT | Vice President and Controller | May 08, 2012 | Sale | $7.05 | 2,500 | 17,628 | 98,653 | May 10, 2012, 05:28 PM |
| COT | Vice President and Controller | Sep 01, 2011 | Sale | $7.93 | 1,445 | 11,459 | 0 | Sep 02, 2011, 05:09 PM |
| COT | Vice President and Controller | May 09, 2011 | Sale | $8.50 | 4,000 | 34,000 | 82,251 | May 09, 2011, 05:32 PM |
| COT | SVP, Controller, CAO | Nov 09, 2010 | Sale | $8.18 | 3,000 | 24,540 | 80,009 | Nov 10, 2010, 12:09 PM |
| Symbol | Relationship | Date | Transaction | Value($) |
| COT | Vice President and Controller | Feb 17, 2015 | Option Exercise | 12,111 |
| COT | Vice President and Controller | Jan 03, 2015 | Option Exercise | 42,343 |
| COT | Vice President and Controller | Aug 21, 2014 | Sale | 88,445 |
| COT | Vice President and Controller | Dec 27, 2013 | Option Exercise | 16,426 |
| COT | Vice President and Controller | May 09, 2013 | Sale | 106,800 |
| COT | Vice President and Controller | Dec 29, 2012 | Option Exercise | 114,471 |
| COT | Vice President and Controller | Dec 10, 2012 | Sale | 33,200 |
| COT | Vice President and Controller | May 08, 2012 | Sale | 17,628 |
| COT | Vice President and Controller | Sep 01, 2011 | Sale | 11,459 |
| COT | Vice President and Controller | May 09, 2011 | Sale | 34,000 |
| COT | SVP, Controller, CAO | Nov 09, 2010 | Sale | 24,540 |