| Date | Insider | Shares | Type | Transaction | Value* |
| 12-Nov-09 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 45,000 | Indirect | Purchase at $2.24 - $3.25 per share. | N/A |
| 11-Nov-09 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 10,000 | Indirect | Purchase at $2.18 per share. | $21,800 |
| 10-Nov-09 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 6,500 | Indirect | Purchase at $2.25 per share. | $14,625 |
| 6-Nov-09 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 100,000 | Indirect | Purchase at $2.25 - $2.28 per share. | $227,0002 |
| 5-Nov-09 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 23,820 | Indirect | Purchase at $2.25 - $2.27 per share. | $54,0002 |
| 4-Nov-09 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 2,500 | Indirect | Purchase at $2.27 per share. | $5,675 |
| 23-Oct-09 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 60,000 | Indirect | Purchase at $2.88 per share. | $172,800 |
| 20-Oct-09 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 46,900 | Indirect | Purchase at $2.88 per share. | $135,072 |
| 19-Oct-09 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 17,000 | Indirect | Purchase at $2.86 per share. | $48,620 |
| 12-Oct-09 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 60,000 | Indirect | Purchase at $3.04 per share. | $182,400 |
| 9-Oct-09 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 20,200 | Indirect | Purchase at $2.99 per share. | $60,398 |
| 8-Oct-09 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 37,000 | Indirect | Purchase at $2.95 per share. | $109,150 |
| 7-Oct-09 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 45,000 | Indirect | Purchase at $2.82 per share. | $126,900 |
| 6-Oct-09 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 29,500 | Indirect | Purchase at $2.67 per share. | $78,765 |
| 1-Oct-09 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 23,500 | Indirect | Purchase at $3.10 per share. | $72,850 |
| 30-Sep-09 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 60,000 | Indirect | Purchase at $2.43 per share. | $145,800 |
| 29-Sep-09 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 50,000 | Indirect | Purchase at $2.40 per share. | $120,000 |
| 28-Sep-09 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 40,000 | Indirect | Purchase at $2.57 per share. | $102,800 |
| 25-Sep-09 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 20,000 | Indirect | Purchase at $2.76 per share. | $55,199 |
| 24-Sep-09 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 2,500 | Indirect | Purchase at $1.73 per share. | $4,325 |
| 8-Sep-09 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 5,900 | Indirect | Purchase at $5.31 per share. | $31,328 |
| 31-Aug-09 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 76,500 | Indirect | Purchase at $5.30 per share. | $405,450 |
| 20-Aug-09 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 4,100 | Indirect | Purchase at $4.75 per share. | $19,475 |
| 7-Aug-09 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 27,500 | Indirect | Purchase at $4.50 per share. | $123,750 |
| 6-Aug-09 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 53,600 | Indirect | Purchase at $4.57 per share. | $244,952 |
| 3-Aug-09 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 4,000 | Indirect | Purchase at $5.04 per share. | $20,160 |
| 30-Jul-09 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 2,000 | Indirect | Purchase at $4.92 per share. | $9,840 |
| 23-Jul-09 | RUECKERT WILLIAM DODGE Director | 10,000 | Direct | Statement of Ownership | N/A |
| 22-Jul-09 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 400,000 | Indirect | Purchase at $4 per share. | $1,600,000 |
| 21-May-09 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 3,100 | Indirect | Purchase at $2.58 per share. | $7,998 |
| 20-May-09 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 30,000 | Indirect | Purchase at $2.74 per share. | $82,200 |
| 15-May-09 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 1,400 | Indirect | Purchase at $2.80 per share. | $3,919 |
| 14-May-09 | SCHWIETERMAN WILLIAM D Director | 19,301 | Direct | Purchase at $2.72 per share. | $52,498 |
| 14-May-09 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 20,000 | Indirect | Purchase at $2.96 per share. | $59,200 |
| 13-May-09 | SCHWIETERMAN WILLIAM D Director | 11,150 | Direct | Purchase at $2.48 per share. | $27,652 |
| 12-May-09 | SCHWIETERMAN WILLIAM D Director | 15,000 | Direct | Purchase at $2.47 per share. | $37,049 |
| 1-May-09 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 9,712 | Indirect | Purchase at $1.65 - $1.83 per share. | $17,0002 |
| 30-Apr-09 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 13,535 | Indirect | Purchase at $1.65 - $1.69 per share. | $23,0002 |
| 13-Apr-09 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 6,800 | Indirect | Purchase at $1.67 per share. | $11,356 |
| 27-Mar-09 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 10,500 | Indirect | Purchase at $1.47 per share. | $15,435 |
| 9-Mar-09 | STOLL ROGER G PHD Director | 22,000 | Direct | Purchase at $1.50 per share. | $33,000 |
| 19-Feb-09 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 745,000 | Indirect | Purchase at $1.50 per share. | $1,117,500 |
| 6-Feb-09 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 25,000 | Indirect | Purchase at $1.58 per share. | $39,500 |
| 5-Feb-09 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 10,000 | Indirect | Purchase at $1.57 per share. | $15,699 |
| 29-Jan-09 | HEWITT L ARTHUR Officer | 58,683 | Direct | Disposition (Non Open Market) at $0 per share. | N/A |
| 15-Jan-09 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 13,000 | Indirect | Purchase at $1.63 per share. | $21,190 |
| 6-Jan-09 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 7,000 | Indirect | Purchase at $1.63 per share. | $11,410 |
| 2-Jan-09 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 2,600 | Indirect | Purchase at $1.38 per share. | $3,587 |
| 12-Dec-08 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 30,000 | Indirect | Purchase at $1.10 per share. | $33,000 |
| 11-Dec-08 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 30,000 | Indirect | Purchase at $1.20 per share. | $36,000 |
| 8-Dec-08 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 37,000 | Indirect | Purchase at $1.50 per share. | $55,500 |
| 4-Dec-08 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 30,000 | Indirect | Purchase at $1.60 per share. | $48,000 |
| 3-Dec-08 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 2,400 | Indirect | Purchase at $1.60 per share. | $3,840 |
| 26-Nov-08 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 3,000 | Indirect | Purchase at $1.60 per share. | $4,800 |
| 20-Nov-08 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 28,000 | Indirect | Purchase at $1.60 per share. | $44,800 |
| 19-Nov-08 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 108,100 | Indirect | Purchase at $1.80 per share. | $194,580 |
| 12-Nov-08 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 20,000 | Indirect | Purchase at $1.80 per share. | $36,000 |
| 4-Nov-08 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 21,900 | Indirect | Purchase at $1.80 per share. | $39,420 |
| 31-Oct-08 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 4,800 | Indirect | Purchase at $1.98 per share. | $9,504 |
| 30-Oct-08 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 100,000 | Indirect | Purchase at $1.75 per share. | $175,000 |
| 3-Oct-08 | WEISER MICHAEL Director | 1,000 | Direct | Purchase at $2.76 per share. | $2,760 |
| 3-Oct-08 | CLEMENS KEVAN Director | 5,000 | Direct | Purchase at $2.85 per share. | $14,250 |
| 3-Oct-08 | LAU JOHNSON YIU NAM Director | 1,000 | Direct | Purchase at $2.76 per share. | $2,760 |
| 3-Oct-08 | HARDMAN NORMAN PHD Director | 5,000 | Direct | Purchase at $3.13 per share. | $15,650 |
| 29-Sep-08 | LAU JOHNSON YIU NAM Director | 2,000 | Direct | Purchase at $3.02 per share. | $6,040 |
| 25-Sep-08 | STOLL ROGER G PHD Director | 10,000 | Direct | Purchase at $3.25 per share. | $32,500 |
| 25-Sep-08 | RIEHLE J NICK Officer | 44,020 | Direct | Option Exercise at $0.07 per share. | $3,081 |
| 25-Sep-08 | RIEHLE J NICK Officer | 2,000 | Direct | Purchase at $3.12 - $3.2 per share. | $6,3202 |
| 24-Sep-08 | PEDDER SIMON Officer | 3,000 | Direct | Purchase at $2.88 - $2.93 per share. | $8,7152 |
| 24-Sep-08 | WEISER MICHAEL Director | 1,500 | Direct | Purchase at $2.99 - $3 per share. | $4,4922 |
| 18-Sep-08 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 30,000 | Indirect | Purchase at $3.22 per share. | $96,600 |
| 17-Sep-08 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 25,600 | Indirect | Purchase at $3.20 per share. | $81,920 |
| 8-Sep-08 | STOLL ROGER G PHD Director | 5,000 | Direct | Purchase at $4.86 per share. | $24,300 |
| 5-Sep-08 | STOLL ROGER G PHD Director | 5,000 | Direct | Purchase at $4.63 per share. | $23,150 |
| 25-Aug-08 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 11,000 | Indirect | Purchase at $4.45 per share. | $48,950 |
| 26-Jun-08 | SCHWIETERMAN WILLIAM D Director | N/A | Direct | Statement of Ownership | N/A |
| 13-Jun-08 | OLIVETO JOSEPH Officer | N/A | Direct | Statement of Ownership | N/A |
| 2-Jun-08 | STOLL ROGER G PHD Director | 5,000 | Direct | Purchase at $5.37 - $5.5 per share. | $27,0002 |
| 30-May-08 | STOLL ROGER G PHD Director | 5,000 | Direct | Purchase at $5.33 - $5.45 per share. | $27,0002 |
| 16-May-08 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 383,000 | Indirect | Purchase at $4.55 per share. | $1,742,650 |
| 30-Apr-08 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 417,000 | Indirect | Purchase at $4.60 per share. | $1,918,199 |
| 17-Apr-08 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 6,960 | Indirect | Purchase at $4.57 per share. | $31,807 |
| 16-Apr-08 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 1,300 | Indirect | Purchase at $4.63 per share. | $6,019 |
| 10-Apr-08 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 1,717 | Indirect | Purchase at $4.76 per share. | $8,172 |
| 9-Apr-08 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 283 | Indirect | Purchase at $4.85 per share. | $1,372 |
| 8-Apr-08 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 2,000 | Indirect | Purchase at $4.85 per share. | $9,700 |
| 7-Apr-08 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 1,000 | Indirect | Purchase at $4.83 per share. | $4,830 |
| 3-Apr-08 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 1,000 | Indirect | Purchase at $4.86 per share. | $4,860 |
| 27-Mar-08 | AUSTIN JOSIAH T Beneficial Owner (10% or more) | 5,000 | Indirect | Purchase at $5.28 per share. | $26,400 |
| 7-Feb-08 | HARDMAN NORMAN PHD Director | N/A | Direct | Statement of Ownership | N/A |
| 7-Feb-08 | STOLL ROGER G PHD Director | N/A | Direct | Statement of Ownership | N/A |