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| Insider & restricted shareholder transactions reported over the last two years | |||||
| Date | Shares | Stock | Transaction | ||
| 6-Mar-09 | 10,834 | SIGM | Option Exercise at $3.40 - $9.89 per share. | ||
| 6-Mar-09 | 10,834 | SIGM |
Sale at $15.07 per share. (Proceeds of $163,268) | ||
| 12-Sep-08 | 6,000 | SIGM |
Option
Exercise at $1 per share.
(Cost of $6,000) | ||
| 12-Mar-08 | 35,000 | SIGM | Option Exercise at $1.69 - $9.89 per share. | ||
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