| director |
| A-Award |
| Acquired |
| 20,000 |
| $5.45 |
| 27 May 2011 | LYNCH TIMOTHY P | director | A-Award | Acquired | 20,000 | $5.45 |
| 18 May 2011 | Kessler Paul D. | SVP Clinical, Med. & Reg.; CMO | S-Sale | Disposed | 7,500 | $5.53 |
| 18 May 2011 | Kessler Paul D. | SVP Clinical, Med. & Reg.; CMO | S-Sale | Disposed | 4,876 | $5.48 |
| 5 Apr 2011 | FAHIM RAAFAT E F | director, officer: President, CEO and CFO | A-Award | Acquired | 50,000 | $0.00 |
| 5 Apr 2011 | FAHIM RAAFAT E F | director, officer: President, CEO and CFO | S-Sale | Disposed | 13,283 | $5.76 |