| Type | Filed | Filer | Subject | Shares Owned | Percent Owned | |
|---|---|---|---|---|---|---|
| SC 13G | 2007-01-16 | Sowood Capital Management LP | HAPC, Inc. | 1,128,100 | 5.4% | EDGAR |
| SC 13G/A | 2006-07-14 | AMARANTH LLC | HAPC, Inc. | 470,200 | 4.0% | EDGAR |
| SC 13G | 2006-07-10 | WELLINGTON MANAGEMENT CO LLP | HAPC, Inc. | 2,333,333 | 12.5% | EDGAR |
| SC 13G | 2006-05-10 | FMR CORP | HAPC, Inc. | 2,619,000 | 14.2% | EDGAR |
| SC 13G | 2006-04-28 | Sapling, LLC | HAPC, Inc. | 1,461,075 | 7.9% | EDGAR |
| SC 13G | 2006-04-24 | AMARANTH LLC | Healthcare Acquisition Partners Corp. | 1,823,250 | 9.9% | EDGAR |
| SC 13G | 2006-04-20 | Context Capital Management, LLC | Healthcare Acquisition Partners Corp. | 1,825,250 | 9.9% | EDGAR |