| Mar 7, 2019 SForm 4 → | Mar 8, 8:06 pm EST | VOCERA COMMUNICATIONS, INC.VCRA | 1,500 | $32.53 | $48,791 | 47,931 | −3.03% | plan? |
| Dec 31, 2018 AForm 4 → | Jan 2, 2019, 2:01 pm EST | GTT Communications, Inc.GTT | 1,004 | $23.66 | $23,755 | 247,748 | — | plan? |
| Dec 7, 2018 SForm 4 → | Dec 10, 7:31 pm EST | VOCERA COMMUNICATIONS, INC.VCRA | 1,500 | $39.61 | $59,416 | 49,431 | −2.95% | plan? |
| Oct 30, 2018 SForm 4 → | Oct 31, 7:08 pm EDT | VOCERA COMMUNICATIONS, INC.VCRA | 13,000 | $35.82 | $465,639 | 50,931 | −20.3% | plan? |
| Sep 28, 2018 AForm 4 → | Oct 11, 10:10 am EDT | GTT Communications, Inc.GTT | 548 | $43.40 | $23,783 | 246,744 | — | plan? late |
| Sep 7, 2018 SForm 4 → | Sep 10, 8:04 pm EDT | VOCERA COMMUNICATIONS, INC.VCRA | 1,500 | $33.89 | $50,828 | 63,931 | −2.29% | plan? |
| Jun 30, 2018 AForm 4 → | Jul 12, 10:14 am EDT | GTT Communications, Inc.GTT | 4,267 | $45.00 | $17,010 | 246,196 | — | plan? late |
| Jun 1, 2018 AForm 4 → | Jun 5, 9:38 pm EDT | VOCERA COMMUNICATIONS, INC.VCRA | 5,600 | — | — | 65,431 | — | plan? |
| Mar 31, 2018 AForm 4 → | Apr 3, 2:11 pm EDT | GTT Communications, Inc.GTT | 300 | $56.70 | $17,010 | 241,929 | — | plan? |
| Dec 31, 2017 AForm 4 → | Jan 9, 2018, 5:32 pm EST | GTT Communications, Inc.GTT | 363 | $46.95 | $17,043 | 241,629 | — | plan? late |
| Dec 14, 2017 GForm 5 → | Feb 14, 2018, 5:54 pm EST | VOCERA COMMUNICATIONS, INC.VCRA | 4,455 | — | — | 59,831 | — | plan? |
| Sep 30, 2017 AForm 4 → | Oct 3, 12:09 pm EDT | GTT Communications, Inc.GTT | 538 | $31.65 | $17,028 | 241,266 | — | plan? |
| Aug 1, 2017 SForm 4 → | Aug 2, 2:10 pm EDT | GTT Communications, Inc.GTT | 6,000 | $30.32 | $181,941 | 240,728 | −2.43% | plan? |
| Jul 3, 2017 SForm 4 → | Jul 6, 3:38 pm EDT | GTT Communications, Inc.GTT | 6,000 | $30.97 | $185,839 | 240,692 | −2.43% | plan? |
| Jul 1, 2017 AForm 4 → | Jul 10, 5:28 pm EDT | GTT Communications, Inc.GTT | 6,036 | $31.65 | $191,039 | 241,198 | — | plan? late |
| Jun 15, 2017 AForm 4 → | Jun 19, 4:29 pm EDT | SONUS NETWORKS INCSONS | 19,816 | — | — | 89,412 | — | plan? |
| Jun 1, 2017 AForm 4 → | Jun 2, 9:32 pm EDT | VOCERA COMMUNICATIONS, INC.VCRA | 5,285 | — | — | 64,286 | — | plan? |
| Jun 1, 2017 SForm 4 → | Jun 2, 4:15 pm EDT | GTT Communications, Inc.GTT | 6,000 | $32.84 | $197,058 | 246,692 | −2.37% | plan? |
| May 10, 2017 SForm 4/A → | May 12, 9:33 am EDT | GTT Communications, Inc.GTT | 12,000 | $30.00 | $360,000 | 252,692 | −4.53% | plan? |
| May 10, 2017 SForm 4 → | May 11, 11:48 am EDT | GTT Communications, Inc.GTT | 12,000 | $30.00 | $360,000 | 252,692 | −4.53% | plan? amended |
| Mar 31, 2017 AForm 4 → | Apr 5, 2:34 pm EDT | GTT Communications, Inc.GTT | 658 | $24.35 | $16,022 | 264,692 | — | plan? late |
| Mar 13, 2017 SForm 4 → | Mar 15, 8:35 pm EDT | VOCERA COMMUNICATIONS, INC.VCRA | 10,000 | $22.65 | $226,512 | 59,001 | −14.5% | plan? |
| Dec 31, 2016 AForm 4 → | Jan 4, 2017, 3:36 pm EST | GTT Communications, Inc.GTT | 557 | $28.75 | $16,014 | 264,034 | — | plan? |
| Sep 30, 2016 AForm 4 → | Oct 4, 6:10 pm EDT | GTT Communications, Inc.GTT | 680 | $23.53 | $16,000 | 263,477 | — | plan? |
| Jul 1, 2016 AForm 4 → | Jul 7, 10:25 am EDT | GTT Communications, Inc.GTT | 6,945 | $18.00 | $125,010 | 262,797 | — | plan? late |
| Jun 30, 2016 AForm 4 → | Jul 1, 4:39 pm EDT | GTT Communications, Inc.GTT | 731 | $18.48 | $13,509 | 255,852 | — | plan? |
| Jun 15, 2016 AForm 4 → | Jun 16, 9:17 pm EDT | SONUS NETWORKS INCSONS | 17,046 | — | — | 69,596 | — | plan? |
| Jun 1, 2016 AForm 4 → | Jun 3, 9:01 pm EDT | VOCERA COMMUNICATIONS, INC.VCRA | 11,020 | — | — | 77,338 | — | plan? |
| Mar 31, 2016 AForm 4 → | Apr 1, 4:42 pm EDT | GTT Communications, Inc.GTT | 817 | $16.54 | $13,513 | 255,121 | — | plan? |
| Mar 11, 2016 GForm 5 → | Feb 14, 2017, 7:16 pm EST | VOCERA COMMUNICATIONS, INC.VCRA | 8,337 | — | — | 69,001 | — | plan? |
| Dec 31, 2015 AForm 4 → | Jan 4, 2016, 3:35 pm EST | GTT Communications, Inc.GTT | 792 | $17.06 | $13,512 | 254,304 | — | plan? |
| Jun 30, 2015 AForm 4 → | Oct 15, 3:49 pm EDT | GTT Communications, Inc.GTT | 4,170 | $24.17 | $100,783 | 253,512 | — | plan? late |
| Jun 15, 2015 AForm 4 → | Jun 16, 4:23 pm EDT | SONUS NETWORKS INCSONS | 19,532 | — | — | 52,550 | — | plan? |
| Jun 5, 2015 SForm 4 → | Jun 9, 5:07 pm EDT | GTT Communications, Inc.GTT | 34,762 | $21.62 | $751,624 | 249,342 | −12.2% | plan? |
| Jun 3, 2015 SForm 4 → | Jun 5, 5:21 pm EDT | GTT Communications, Inc.GTT | 15,238 | $22.07 | $336,353 | 284,104 | −5.09% | plan? |
| Jun 1, 2015 AForm 4 → | Jun 2, 8:09 pm EDT | VOCERA COMMUNICATIONS, INC.VCRA | 8,910 | — | — | 66,318 | — | plan? |
| Jan 2, 2015 AForm 4 → | Jan 6, 5:03 pm EST | SONUS NETWORKS INCSONS | 18,249 | — | — | 165,116 | — | plan? |