| Symbol | Relationship | Date | Transaction | Cost | # Shares | Value($) | Total Shares | Form 4 |
| USHS | CFO, Secretary & Treasurer | Oct 26, 2012 | Option Exercise | $12.50 | 57,686 | 721,075 | 0 | Oct 29, 2012, 03:07 PM |
| USHS | CFO, Secretary & Treasurer | Jan 25, 2012 | Option Exercise | $8.12 | 6,960 | 56,515 | 60,811 | Jan 27, 2012, 12:14 PM |
| USHS | CFO, Secretary & Treasurer | Jan 25, 2012 | Option Exercise | $2.19 | 25,834 | 56,518 | 67,771 | Jan 27, 2012, 12:14 PM |
| USHS | CFO, Secretary & Treasurer | Aug 12, 2011 | Buy | $4.89 | 2,000 | 9,780 | 65,271 | Aug 12, 2011, 04:36 PM |
| USHS | CFO, Secretary & Treasurer | Mar 25, 2011 | Option Exercise | $3.60 | 25,000 | 90,000 | 79,312 | Mar 28, 2011, 05:48 PM |
| USHS | CFO, Secretary & Treasurer | Mar 25, 2011 | Sale | $4.55 | 7,500 | 34,125 | 71,812 | Mar 28, 2011, 05:48 PM |
| Symbol | Relationship | Date | Transaction | Value($) |
| USHS | CFO, Secretary & Treasurer | Oct 26, 2012 | Option Exercise | 721,075 |
| USHS | CFO, Secretary & Treasurer | Jan 25, 2012 | Option Exercise | 56,515 |
| USHS | CFO, Secretary & Treasurer | Jan 25, 2012 | Option Exercise | 56,518 |
| USHS | CFO, Secretary & Treasurer | Aug 12, 2011 | Buy | 9,780 |
| USHS | CFO, Secretary & Treasurer | Mar 25, 2011 | Option Exercise | 90,000 |
| USHS | CFO, Secretary & Treasurer | Mar 25, 2011 | Sale | 34,125 |