| Symbol | Relationship | Date | Transaction | Cost | # Shares | Value($) | Total Shares | Form 4 |
| STMP | VP, Information Technology | Feb 27, 2014 | Option Exercise | $12.55 | 11,175 | 140,246 | 12,638 | Mar 03, 2014, 06:10 PM |
| STMP | VP, Information Technology | Feb 27, 2014 | Sale | $36.15 | 11,175 | 403,947 | 1,463 | Mar 03, 2014, 06:10 PM |
| STMP | VP, Information Technology | Jan 31, 2014 | Option Exercise | $33.54 | 354 | 11,873 | 1,463 | Feb 04, 2014, 07:15 PM |
| STMP | VP, Information Technology | Oct 30, 2013 | Option Exercise | $14.49 | 11,570 | 167,614 | 13,179 | Nov 01, 2013, 07:07 PM |
| STMP | VP, Information Technology | Oct 30, 2013 | Sale | $45.97 | 12,070 | 554,846 | 1,109 | Nov 01, 2013, 07:07 PM |
| STMP | VP, Information Technology | Aug 05, 2013 | Option Exercise | $13.84 | 9,666 | 133,753 | 11,275 | Aug 07, 2013, 07:45 PM |
| STMP | VP, Information Technology | Aug 07, 2013 | Option Exercise | $12.55 | 9,668 | 121,333 | 11,277 | Aug 07, 2013, 07:45 PM |
| STMP | VP, Information Technology | Aug 06, 2013 | Option Exercise | $14.35 | 9,666 | 138,743 | 11,275 | Aug 07, 2013, 07:45 PM |
| STMP | VP, Information Technology | Aug 05, 2013 | Sale | $41.61 | 9,666 | 402,202 | 1,609 | Aug 07, 2013, 07:45 PM |
| STMP | VP, Information Technology | Aug 07, 2013 | Sale | $39.54 | 9,668 | 382,273 | 1,609 | Aug 07, 2013, 07:45 PM |
| STMP | VP, Information Technology | Aug 06, 2013 | Sale | $40.32 | 9,666 | 389,733 | 1,609 | Aug 07, 2013, 07:45 PM |
| STMP | VP, Information Technology | Jul 31, 2013 | Option Exercise | $22.92 | 479 | 10,979 | 1,609 | Aug 02, 2013, 07:11 PM |
| STMP | VP, Information Technology | Jan 31, 2013 | Option Exercise | $17.09 | 600 | 10,254 | 1,130 | Feb 04, 2013, 08:31 PM |
| STMP | VP, Information Technology | Oct 31, 2012 | Option Exercise | $12.55 | 16,500 | 207,075 | 17,030 | Nov 01, 2012, 01:49 PM |
| STMP | VP, Information Technology | Oct 31, 2012 | Sale | $27.24 | 16,500 | 449,386 | 530 | Nov 01, 2012, 01:49 PM |
| STMP | VP, Information Technology | Jul 31, 2012 | Option Exercise | $17.98 | 464 | 8,343 | 530 | Aug 02, 2012, 08:52 PM |
| STMP | VP, Information Technology | Apr 30, 2012 | Option Exercise | $12.44 | 8,449 | 105,094 | 8,515 | May 02, 2012, 07:55 PM |
| STMP | VP, Information Technology | Apr 30, 2012 | Sale | $29.17 | 8,449 | 246,458 | 66 | May 02, 2012, 07:55 PM |
| STMP | VP, Information Technology | Feb 14, 2012 | Option Exercise | $12.30 | 8,573 | 105,474 | 9,239 | Feb 15, 2012, 04:42 PM |
| STMP | VP, Information Technology | Feb 14, 2012 | Sale | $30.50 | 9,173 | 279,777 | 66 | Feb 15, 2012, 04:42 PM |
| STMP | VP, Information Technology | Jan 31, 2012 | Option Exercise | $14.80 | 600 | 8,880 | 666 | Feb 02, 2012, 08:18 PM |
| STMP | VP, Information Technology | Nov 29, 2011 | Option Exercise | $12.55 | 5,500 | 69,025 | 5,566 | Dec 01, 2011, 07:42 PM |
| STMP | VP, Information Technology | Nov 29, 2011 | Sale | $26.76 | 5,500 | 147,180 | 66 | Dec 01, 2011, 07:42 PM |
| STMP | VP, Information Technology | Nov 03, 2011 | Option Exercise | $13.10 | 5,968 | 78,181 | 9,534 | Nov 03, 2011, 08:58 PM |
| STMP | VP, Information Technology | Nov 01, 2011 | Option Exercise | $10.99 | 9,466 | 104,056 | 13,032 | Nov 03, 2011, 08:58 PM |
| STMP | VP, Information Technology | Nov 02, 2011 | Option Exercise | $12.78 | 9,466 | 121,016 | 13,032 | Nov 03, 2011, 08:58 PM |
| STMP | VP, Information Technology | Nov 01, 2011 | Sale | $29.89 | 9,466 | 282,970 | 3,566 | Nov 03, 2011, 08:58 PM |
| STMP | VP, Information Technology | Nov 03, 2011 | Sale | $28.03 | 9,468 | 265,414 | 66 | Nov 03, 2011, 08:58 PM |
| STMP | VP, Information Technology | Nov 02, 2011 | Sale | $28.43 | 9,466 | 269,162 | 3,566 | Nov 03, 2011, 08:58 PM |
| STMP | VP, Information Technology | Aug 05, 2011 | Option Exercise | $8.77 | 4,000 | 35,080 | 7,566 | Aug 08, 2011, 05:50 PM |
| STMP | VP, Information Technology | Aug 05, 2011 | Sale | $17.50 | 4,000 | 70,000 | 3,566 | Aug 08, 2011, 05:50 PM |
| STMP | VP, Information Technology | Jul 29, 2011 | Option Exercise | $11.08 | 241 | 2,670 | 3,566 | Aug 02, 2011, 07:43 PM |
| Symbol | Relationship | Date | Transaction | Value($) |
| STMP | VP, Information Technology | Feb 27, 2014 | Option Exercise | 140,246 |
| STMP | VP, Information Technology | Feb 27, 2014 | Sale | 403,947 |
| STMP | VP, Information Technology | Jan 31, 2014 | Option Exercise | 11,873 |
| STMP | VP, Information Technology | Oct 30, 2013 | Option Exercise | 167,614 |
| STMP | VP, Information Technology | Oct 30, 2013 | Sale | 554,846 |
| STMP | VP, Information Technology | Aug 05, 2013 | Option Exercise | 133,753 |
| STMP | VP, Information Technology | Aug 07, 2013 | Option Exercise | 121,333 |
| STMP | VP, Information Technology | Aug 06, 2013 | Option Exercise | 138,743 |
| STMP | VP, Information Technology | Aug 05, 2013 | Sale | 402,202 |
| STMP | VP, Information Technology | Aug 07, 2013 | Sale | 382,273 |
| STMP | VP, Information Technology | Aug 06, 2013 | Sale | 389,733 |
| STMP | VP, Information Technology | Jul 31, 2013 | Option Exercise | 10,979 |
| STMP | VP, Information Technology | Jan 31, 2013 | Option Exercise | 10,254 |
| STMP | VP, Information Technology | Oct 31, 2012 | Option Exercise | 207,075 |
| STMP | VP, Information Technology | Oct 31, 2012 | Sale | 449,386 |
| STMP | VP, Information Technology | Jul 31, 2012 | Option Exercise | 8,343 |
| STMP | VP, Information Technology | Apr 30, 2012 | Option Exercise | 105,094 |
| STMP | VP, Information Technology | Apr 30, 2012 | Sale | 246,458 |
| STMP | VP, Information Technology | Feb 14, 2012 | Option Exercise | 105,474 |
| STMP | VP, Information Technology | Feb 14, 2012 | Sale | 279,777 |
| STMP | VP, Information Technology | Jan 31, 2012 | Option Exercise | 8,880 |
| STMP | VP, Information Technology | Nov 29, 2011 | Option Exercise | 69,025 |
| STMP | VP, Information Technology | Nov 29, 2011 | Sale | 147,180 |
| STMP | VP, Information Technology | Nov 03, 2011 | Option Exercise | 78,181 |
| STMP | VP, Information Technology | Nov 01, 2011 | Option Exercise | 104,056 |
| STMP | VP, Information Technology | Nov 02, 2011 | Option Exercise | 121,016 |
| STMP | VP, Information Technology | Nov 01, 2011 | Sale | 282,970 |
| STMP | VP, Information Technology | Nov 03, 2011 | Sale | 265,414 |
| STMP | VP, Information Technology | Nov 02, 2011 | Sale | 269,162 |
| STMP | VP, Information Technology | Aug 05, 2011 | Option Exercise | 35,080 |
| STMP | VP, Information Technology | Aug 05, 2011 | Sale | 70,000 |
| STMP | VP, Information Technology | Jul 29, 2011 | Option Exercise | 2,670 |