| Symbol | Relationship | Date | Transaction | Cost | # Shares | Value($) | Total Shares | Form 4 |
| VSTM | Director | Dec 04, 2020 | Buy | $2.17 | 50,000 | 108,500 | 218,000 | Dec 07, 2020, 11:15 AM |
| VSTM | Director | Mar 15, 2019 | Buy | $3.21 | 33,000 | 105,930 | 168,000 | Mar 19, 2019, 04:12 PM |
| VSTM | Director | Sep 28, 2018 | Buy | $7.31 | 5,000 | 36,550 | 135,000 | Oct 02, 2018, 07:16 PM |
| VSTM | Director | Dec 05, 2017 | Buy | $3.95 | 60,538 | 239,125 | 130,000 | Dec 07, 2017, 04:02 PM |
| VSTM | Director | May 15, 2017 | Buy | $2.45 | 30,000 | 73,500 | 69,462 | May 17, 2017, 08:21 AM |
| HTWR | Director | Aug 23, 2016 | Option Exercise | $58.00 | 11,107 | 644,206 | 0 | Aug 24, 2016, 12:54 PM |
| VSTM | Director | Jan 28, 2015 | Buy | $6.50 | 38,462 | 250,003 | 39,462 | Jan 28, 2015, 02:17 PM |
| VSTM | Director | May 30, 2014 | Buy | $9.90 | 1,000 | 9,895 | 1,000 | Jun 02, 2014, 09:46 AM |
| HTWR | Director | May 16, 2011 | Buy | $78.18 | 2,500 | 195,450 | 5,691 | May 17, 2011, 04:37 PM |
| BSMD | Director | Sep 10, 2010 | Option Exercise | $4.38 | 53,277 | 233,353 | 0 | Sep 10, 2010, 01:39 PM |
| BSMD | Director | Sep 10, 2010 | Option Exercise | $4.38 | 20,055 | 87,841 | 0 | Sep 10, 2010, 01:35 PM |
| Symbol | Relationship | Date | Transaction | Value($) |
| VSTM | Director | Dec 04, 2020 | Buy | 108,500 |
| VSTM | Director | Mar 15, 2019 | Buy | 105,930 |
| VSTM | Director | Sep 28, 2018 | Buy | 36,550 |
| VSTM | Director | Dec 05, 2017 | Buy | 239,125 |
| VSTM | Director | May 15, 2017 | Buy | 73,500 |
| HTWR | Director | Aug 23, 2016 | Option Exercise | 644,206 |
| VSTM | Director | Jan 28, 2015 | Buy | 250,003 |
| VSTM | Director | May 30, 2014 | Buy | 9,895 |
| HTWR | Director | May 16, 2011 | Buy | 195,450 |
| BSMD | Director | Sep 10, 2010 | Option Exercise | 233,353 |
| BSMD | Director | Sep 10, 2010 | Option Exercise | 87,841 |