| Date | Insider | Shares | Transaction | Value* |
| 14-Sep-09 | LEBUHN RICHARD T. Director | 17,301 | Acquisition (Non Open Market) at $0 per share. | N/A |
| 14-Sep-09 | MAJTELES ROBERT J Director | 17,301 | Acquisition (Non Open Market) at $0 per share. | N/A |
| 14-Sep-09 | GRIFFIN GERALD D Director | 17,301 | Acquisition (Non Open Market) at $0 per share. | N/A |
| 14-Sep-09 | HULTMAN JEFFREY R Director | 17,301 | Acquisition (Non Open Market) at $0 per share. | N/A |
| 3-Jun-08 | MARXE AUSTIN W & GREENHOUSE DAVID M Beneficial Owner (10% or more) | 507 | Purchase at $3 per share. | $1,521 |
| 2-Jun-08 | MARXE AUSTIN W & GREENHOUSE DAVID M Beneficial Owner (10% or more) | 1,000 | Purchase at $3.10 per share. | $3,100 |
| 25-Apr-08 | BROADWOOD PARTNERS LP Beneficial Owner (10% or more) | N/A | Purchase at $0 per share. | N/A |
| 25-Apr-08 | BROADWOOD PARTNERS LP Beneficial Owner (10% or more) | 29,500 | Purchase at $3.50 - $3.71 per share. | $106,0002 |
| 24-Apr-08 | BROADWOOD PARTNERS LP Beneficial Owner (10% or more) | N/A | Purchase at $0 per share. | N/A |
| 24-Apr-08 | BROADWOOD PARTNERS LP Beneficial Owner (10% or more) | 25,000 | Purchase at $3.33 - $3.56 per share. | $86,0002 |
| 23-Apr-08 | MARXE AUSTIN W & GREENHOUSE DAVID M Beneficial Owner (10% or more) | 1,000 | Purchase at $3.20 per share. | $3,200 |
| 23-Apr-08 | BROADWOOD PARTNERS LP Beneficial Owner (10% or more) | N/A | Purchase at $0 per share. | N/A |
| 23-Apr-08 | BROADWOOD PARTNERS LP Beneficial Owner (10% or more) | 47,481 | Purchase at $3.20 per share. | $151,939 |
| 22-Apr-08 | MARXE AUSTIN W & GREENHOUSE DAVID M Beneficial Owner (10% or more) | 1,400 | Purchase at $3.32 per share. | $4,648 |
| 17-Apr-08 | BROADWOOD PARTNERS LP Beneficial Owner (10% or more) | N/A | Purchase at $0 per share. | N/A |
| 17-Apr-08 | BROADWOOD PARTNERS LP Beneficial Owner (10% or more) | 117,700 | Purchase at $3.35 per share. | $394,295 |
| 16-Apr-08 | MARXE AUSTIN W & GREENHOUSE DAVID M Beneficial Owner (10% or more) | 3,099 | Purchase at $3.21 per share. | $9,947 |
| 15-Apr-08 | MARXE AUSTIN W & GREENHOUSE DAVID M Beneficial Owner (10% or more) | 4,695 | Purchase at $3.50 per share. | $16,432 |
| 19-Mar-08 | MARXE AUSTIN W & GREENHOUSE DAVID M Beneficial Owner (10% or more) | 21,986 | Purchase at $4.09 per share. | $89,922 |
| 18-Mar-08 | MARXE AUSTIN W & GREENHOUSE DAVID M Beneficial Owner (10% or more) | 3,985 | Purchase at $4.13 - $4.15 per share. | $16,0002 |
| 17-Mar-08 | MARXE AUSTIN W & GREENHOUSE DAVID M Beneficial Owner (10% or more) | 3,106 | Purchase at $4.19 per share. | $13,014 |
| 14-Mar-08 | MARXE AUSTIN W & GREENHOUSE DAVID M Beneficial Owner (10% or more) | 5,635 | Purchase at $4.06 per share. | $22,878 |
| 13-Mar-08 | MARXE AUSTIN W & GREENHOUSE DAVID M Beneficial Owner (10% or more) | 953 | Purchase at $4.53 per share. | $4,317 |
| 12-Mar-08 | MARXE AUSTIN W & GREENHOUSE DAVID M Beneficial Owner (10% or more) | 25,194 | Purchase at $4.54 per share. | $114,380 |
| 1-Mar-08 | SUNDIUS ROBERT W JR Director | N/A | Statement of Ownership | N/A |
| 1-Mar-08 | SUNDIUS ROBERT W JR Director | N/A | Statement of Ownership | N/A |
| 1-Mar-08 | LEBUHN RICHARD T. Director | N/A | Statement of Ownership | N/A |
| 11-Feb-08 | MARXE AUSTIN W & GREENHOUSE DAVID M Beneficial Owner (10% or more) | 100 | Purchase at $4.85 per share. | $484 |
| 8-Feb-08 | MARXE AUSTIN W & GREENHOUSE DAVID M Beneficial Owner (10% or more) | 11,903 | Purchase at $4.98 per share. | $59,276 |
| 7-Feb-08 | MARXE AUSTIN W & GREENHOUSE DAVID M Beneficial Owner (10% or more) | 4,913 | Purchase at $5.20 per share. | $25,547 |
| 6-Feb-08 | MARXE AUSTIN W & GREENHOUSE DAVID M Beneficial Owner (10% or more) | 4,695 | Purchase at $5.31 per share. | $24,930 |
| 29-Jan-08 | MARXE AUSTIN W & GREENHOUSE DAVID M Beneficial Owner (10% or more) | 38,033 | Purchase at $5.39 per share. | $204,997 |
| 28-Jan-08 | MARXE AUSTIN W & GREENHOUSE DAVID M Beneficial Owner (10% or more) | 3,662 | Purchase at $5.42 per share. | $19,848 |
| 23-Jan-08 | MARXE AUSTIN W & GREENHOUSE DAVID M Beneficial Owner (10% or more) | 43,386 | Purchase at $5.50 per share. | $238,623 |
| 22-Jan-08 | BROADWOOD PARTNERS LP Beneficial Owner (10% or more) | N/A | Purchase at $0 per share. | N/A |
| 22-Jan-08 | BROADWOOD PARTNERS LP Beneficial Owner (10% or more) | 2,750 | Purchase at $5.30 - $5.54 per share. | $15,0002 |