| Symbol | Company | Owner | Relationship | Date | Transaction | Cost | # Shares | Value ($) | Total Shares | Filing | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| RBCN | Rubicon Technology, Inc. | Graffy Mardel A | Chief Financial Officer | Nov 01, 2017 | Option Exercise | $7.61 | 130 | 989 | 284 | Nov 02, 2017, 04:02 PM | |
| RBCN | Rubicon Technology, Inc. | Graffy Mardel A | Chief Financial Officer | Nov 01, 2016 | Option Exercise | $0.60 | 1,510 | 906 | 6,063 | Nov 03, 2016, 04:30 PM | |
| RBCN | Rubicon Technology, Inc. | Graffy Mardel A | Chief Financial Officer | Nov 01, 2015 | Option Exercise | $1.10 | 1,510 | 1,661 | 3,428 | Nov 03, 2015, 04:23 PM | |
| RBCN | Rubicon Technology, Inc. | Graffy Mardel A | VP - Financial Operations | Nov 01, 2014 | Option Exercise | $4.43 | 364 | 1,613 | 792 | Nov 04, 2014, 04:39 PM |
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