| Symbol | Relationship | Date | Transaction | Cost | # Shares | Value($) | Total Shares | Form 4 |
| IEC | Director | Apr 25, 2019 | Option Exercise | $7.19 | 3,477 | 25,000 | 13,290 | Apr 29, 2019, 07:55 AM |
| IEC | Director | May 25, 2018 | Buy | $5.27 | 2,000 | 10,534 | 9,813 | May 30, 2018, 04:44 PM |
| IEC | Director | Dec 14, 2017 | Buy | $4.17 | 2,000 | 8,350 | 2,000 | Dec 14, 2017, 07:38 PM |
| SPA | Sr. VP - Corporate Development | Nov 10, 2015 | Sale | $22.63 | 5,500 | 124,465 | 36,649 | Nov 12, 2015, 12:56 PM |
| SPA | Sr VP - Corporate Development | Sep 11, 2014 | Option Exercise | $26.86 | 4,790 | 128,659 | 42,199 | Sep 15, 2014, 06:35 PM |
| SPA | Sr. VP, Corporate Development | Feb 26, 2014 | Sale | $32.38 | 7,360 | 238,342 | 46,989 | Feb 26, 2014, 05:50 PM |
| SPA | Sr VP, Corporate Development | Sep 13, 2013 | Option Exercise | $23.01 | 1,613 | 37,115 | 54,349 | Oct 03, 2013, 02:52 PM |
| SPA | Sr. V.P., Business Development | Sep 04, 2012 | Option Exercise | $5.00 | 772 | 3,860 | 40,845 | Sep 06, 2012, 03:06 PM |
| SPA | Sr. V.P., Business Development | Sep 04, 2012 | Sale | $10.01 | 772 | 7,726 | 40,073 | Sep 06, 2012, 03:06 PM |
| SPA | Sr. V.P., Business Development | Aug 31, 2012 | Option Exercise | $5.00 | 2,778 | 13,890 | 42,851 | Sep 04, 2012, 02:22 PM |
| SPA | Sr. V.P., Business Development | Aug 30, 2012 | Option Exercise | $5.00 | 643 | 3,215 | 40,716 | Sep 04, 2012, 02:22 PM |
| SPA | Sr. V.P., Business Development | Aug 31, 2012 | Sale | $10.00 | 2,778 | 27,780 | 40,073 | Sep 04, 2012, 02:22 PM |
| SPA | Sr. V.P., Business Development | Aug 30, 2012 | Sale | $10.00 | 643 | 6,430 | 40,073 | Sep 04, 2012, 02:22 PM |
| SPA | Sr. V.P., Business Development | Aug 29, 2012 | Option Exercise | $5.00 | 655 | 3,275 | 40,728 | Aug 30, 2012, 03:48 PM |
| SPA | Sr. V.P., Business Development | Aug 29, 2012 | Sale | $10.00 | 655 | 6,550 | 40,073 | Aug 30, 2012, 03:48 PM |
| SPA | Sr. V.P., Business Development | May 02, 2012 | Option Exercise | $5.00 | 2,310 | 11,550 | 42,383 | May 04, 2012, 10:16 AM |
| SPA | Sr. V.P., Business Development | May 02, 2012 | Sale | $10.00 | 2,310 | 23,100 | 40,073 | May 04, 2012, 10:16 AM |
| SPA | Sr. V.P., Business Development | Apr 30, 2012 | Option Exercise | $5.00 | 924 | 4,620 | 40,997 | May 01, 2012, 02:35 PM |
| SPA | Sr. V.P., Business Development | Apr 27, 2012 | Option Exercise | $5.00 | 1,140 | 5,700 | 41,213 | May 01, 2012, 02:35 PM |
| SPA | Sr. V.P., Business Development | Apr 30, 2012 | Sale | $10.00 | 924 | 9,240 | 40,073 | May 01, 2012, 02:35 PM |
| SPA | Sr. V.P., Business Development | Apr 27, 2012 | Sale | $10.00 | 1,140 | 11,400 | 40,073 | May 01, 2012, 02:35 PM |
| SPA | Sr. V.P., Business Development | Apr 12, 2012 | Buy | $5.00 | 400 | 2,000 | 40,473 | Apr 16, 2012, 03:23 PM |
| SPA | Sr. V.P., Business Development | Apr 12, 2012 | Sale | $10.00 | 400 | 4,000 | 40,073 | Apr 16, 2012, 03:23 PM |
| SPA | Sr. V.P., Business Development | Apr 10, 2012 | Buy | $5.00 | 400 | 2,000 | 40,473 | Apr 11, 2012, 04:14 PM |
| SPA | Sr. V.P., Business Development | Apr 09, 2012 | Buy | $5.00 | 632 | 3,160 | 40,705 | Apr 11, 2012, 04:14 PM |
| SPA | Sr. V.P., Business Development | Apr 10, 2012 | Sale | $10.00 | 400 | 4,000 | 40,073 | Apr 11, 2012, 04:14 PM |
| SPA | Sr. V.P., Business Development | Apr 09, 2012 | Sale | $10.00 | 632 | 6,320 | 40,073 | Apr 11, 2012, 04:14 PM |
| SPA | Sr. V.P., Business Development | Apr 05, 2012 | Buy | $5.00 | 1,506 | 7,530 | 41,579 | Apr 06, 2012, 12:24 PM |
| SPA | Sr. V.P., Business Development | Apr 04, 2012 | Buy | $5.00 | 340 | 1,700 | 40,413 | Apr 06, 2012, 12:24 PM |
| SPA | Sr. V.P., Business Development | Apr 05, 2012 | Sale | $10.00 | 1,506 | 15,060 | 40,073 | Apr 06, 2012, 12:24 PM |
| SPA | Sr. V.P., Business Development | Apr 04, 2012 | Sale | $10.00 | 340 | 3,400 | 40,073 | Apr 06, 2012, 12:24 PM |
| SPA | Sr. VP, Business Development | Sep 10, 2010 | Buy | $5.09 | 1,600 | 8,144 | 33,347 | Sep 14, 2010, 11:06 AM |
| Symbol | Relationship | Date | Transaction | Value($) |
| IEC | Director | Apr 25, 2019 | Option Exercise | 25,000 |
| IEC | Director | May 25, 2018 | Buy | 10,534 |
| IEC | Director | Dec 14, 2017 | Buy | 8,350 |
| SPA | Sr. VP - Corporate Development | Nov 10, 2015 | Sale | 124,465 |
| SPA | Sr VP - Corporate Development | Sep 11, 2014 | Option Exercise | 128,659 |
| SPA | Sr. VP, Corporate Development | Feb 26, 2014 | Sale | 238,342 |
| SPA | Sr VP, Corporate Development | Sep 13, 2013 | Option Exercise | 37,115 |
| SPA | Sr. V.P., Business Development | Sep 04, 2012 | Option Exercise | 3,860 |
| SPA | Sr. V.P., Business Development | Sep 04, 2012 | Sale | 7,726 |
| SPA | Sr. V.P., Business Development | Aug 31, 2012 | Option Exercise | 13,890 |
| SPA | Sr. V.P., Business Development | Aug 30, 2012 | Option Exercise | 3,215 |
| SPA | Sr. V.P., Business Development | Aug 31, 2012 | Sale | 27,780 |
| SPA | Sr. V.P., Business Development | Aug 30, 2012 | Sale | 6,430 |
| SPA | Sr. V.P., Business Development | Aug 29, 2012 | Option Exercise | 3,275 |
| SPA | Sr. V.P., Business Development | Aug 29, 2012 | Sale | 6,550 |
| SPA | Sr. V.P., Business Development | May 02, 2012 | Option Exercise | 11,550 |
| SPA | Sr. V.P., Business Development | May 02, 2012 | Sale | 23,100 |
| SPA | Sr. V.P., Business Development | Apr 30, 2012 | Option Exercise | 4,620 |
| SPA | Sr. V.P., Business Development | Apr 27, 2012 | Option Exercise | 5,700 |
| SPA | Sr. V.P., Business Development | Apr 30, 2012 | Sale | 9,240 |
| SPA | Sr. V.P., Business Development | Apr 27, 2012 | Sale | 11,400 |
| SPA | Sr. V.P., Business Development | Apr 12, 2012 | Buy | 2,000 |
| SPA | Sr. V.P., Business Development | Apr 12, 2012 | Sale | 4,000 |
| SPA | Sr. V.P., Business Development | Apr 10, 2012 | Buy | 2,000 |
| SPA | Sr. V.P., Business Development | Apr 09, 2012 | Buy | 3,160 |
| SPA | Sr. V.P., Business Development | Apr 10, 2012 | Sale | 4,000 |
| SPA | Sr. V.P., Business Development | Apr 09, 2012 | Sale | 6,320 |
| SPA | Sr. V.P., Business Development | Apr 05, 2012 | Buy | 7,530 |
| SPA | Sr. V.P., Business Development | Apr 04, 2012 | Buy | 1,700 |
| SPA | Sr. V.P., Business Development | Apr 05, 2012 | Sale | 15,060 |
| SPA | Sr. V.P., Business Development | Apr 04, 2012 | Sale | 3,400 |
| SPA | Sr. VP, Business Development | Sep 10, 2010 | Buy | 8,144 |