| Type | Filed | Filer | Subject | Shares Owned | Percent Owned | |
|---|---|---|---|---|---|---|
| SC 13D/A | 2006-05-04 | Albert & Margaret Alkek Foundation | PharmaFrontiers Corp. | 8,009,724 | 11.5% | EDGAR |
| SC 13D/A | 2006-04-25 | Albert & Margaret Alkek Foundation | PharmaFrontiers Corp. | 8,009,724 | 11.5% | EDGAR |
| SC 13D | 2006-04-24 | Albert & Margaret Alkek Foundation | PharmaFrontiers Corp. | 8,009,724 | 11.5% | EDGAR |
| SC 13D | 2006-04-24 | MARXE AUSTIN W & GREENHOUSE DAVID M | PharmaFrontiers Corp. | 15,000,000 | 20.8% | EDGAR |
| SC 13G | 2006-04-17 | ROTH MICHAEL | PharmaFrontiers Corp. | 10,000,000 | 14.9% | EDGAR |
| SC 13D | 2005-11-04 | SMETEK PETER PAUL JR | PharmaFrontiers Corp. | 3,682,396 | 17.8% | EDGAR |
| SC 13D | 2005-11-03 | JARKESY GEORGE | PharmaFrontiers Corp. | 1,696,255 | 8.2% | EDGAR |