| THOMPSON STEPHEN B |
| CFO |
| A-Award |
| Acquired |
| 15,000 |
| $1.36 |
| 26 Jan 2012 | NOWOTNIK DAVID P | Sr. VP R&D | A-Award | Acquired | 15,000 | $1.36 |
| 14 Nov 2011 | Ayer Capital Management, LP | 10 percent owner | Disposed | 0 | $0.00 |
| 14 Nov 2011 | Ayer Capital Management, LP | 10 percent owner | Disposed | 1,379,310 | $1.67 |
| 14 Nov 2011 | Ayer Capital Management, LP | 10 percent owner | Disposed | 1,379,310 | $2.00 |