| Symbol | Relationship | Date | Transaction | Cost | # Shares | Value($) | Total Shares | Form 4 |
| OPTC | Director | Jan 27, 2011 | Option Exercise | $2.45 | 11,250 | 27,563 | 0 | Jan 28, 2011, 03:14 PM |
| OPTC | Director | Oct 01, 2010 | Option Exercise | $1.52 | 625 | 952 | 11,250 | Oct 06, 2010, 12:57 PM |
| Symbol | Relationship | Date | Transaction | Value($) |
| OPTC | Director | Jan 27, 2011 | Option Exercise | 27,563 |
| OPTC | Director | Oct 01, 2010 | Option Exercise | 952 |