| Symbol | Relationship | Date | Transaction | Cost | # Shares | Value($) | Total Shares | Form 4 |
| DRAM | Director | Feb 01, 2017 | Option Exercise | $1.47 | 8,000 | 11,760 | 35,978 | Feb 03, 2017, 11:19 AM |
| DRAM | Director | Jun 16, 2016 | Option Exercise | $0.84 | 50,000 | 42,000 | 83,934 | Jun 20, 2016, 10:11 AM |
| DRAM | Director | Jan 13, 2016 | Option Exercise | $0.60 | 30,000 | 18,000 | 33,934 | Jan 15, 2016, 05:21 PM |
| Symbol | Relationship | Date | Transaction | Value($) |
| DRAM | Director | Feb 01, 2017 | Option Exercise | 11,760 |
| DRAM | Director | Jun 16, 2016 | Option Exercise | 42,000 |
| DRAM | Director | Jan 13, 2016 | Option Exercise | 18,000 |