| SC 13G/A | 2016-11-17 | PVAM Perlus Microcap Fund, L.P. | AUTHENTIDATE HOLDING CORP | 280,900 | 4.9% | EDGAR |
| SC 13G | 2016-10-20 | PVAM Perlus Microcap Fund, L.P. | AUTHENTIDATE HOLDING CORP | 330,900 | 5.7% | EDGAR |
| SC 13D/A | 2016-10-18 | Lazarus Management Co LLC | AUTHENTIDATE HOLDING CORP | 627,784 | 10.5% | EDGAR |
| SC 13D/A | 2016-02-02 | Lazarus Management Co LLC | AUTHENTIDATE HOLDING CORP | 947,785 | 15.9% | EDGAR |
| SC 13D/A | 2016-01-22 | Lazarus Management Co LLC | AUTHENTIDATE HOLDING CORP | 8,530,074 | 19.1% | EDGAR |
| SC 13D/A | 2015-12-17 | Lazarus Management Co LLC | AUTHENTIDATE HOLDING CORP | 14,763,708 | 29.0% | EDGAR |
| SC 13D/A | 2015-11-30 | Lazarus Management Co LLC | AUTHENTIDATE HOLDING CORP | 14,763,708 | 29.0% | EDGAR |
| SC 13D/A | 2015-11-17 | Lazarus Management Co LLC | AUTHENTIDATE HOLDING CORP | 14,763,708 | 29.0% | EDGAR |
| SC 13D/A | 2015-11-09 | Lazarus Management Co LLC | AUTHENTIDATE HOLDING CORP | 14,763,708 | 29.4% | EDGAR |
| SC 13D/A | 2015-11-02 | Lazarus Management Co LLC | AUTHENTIDATE HOLDING CORP | 14,763,708 | 29.4% | EDGAR |
| SC 13D/A | 2015-10-26 | Lazarus Management Co LLC | AUTHENTIDATE HOLDING CORP | 14,763,708 | 29.4% | EDGAR |
| SC 13D/A | 2015-10-19 | Lazarus Management Co LLC | AUTHENTIDATE HOLDING CORP | 14,763,708 | 29.4% | EDGAR |
| SC 13D/A | 2015-10-13 | Lazarus Management Co LLC | AUTHENTIDATE HOLDING CORP | 14,763,708 | 29.5% | EDGAR |
| SC 13D/A | 2015-09-28 | Lazarus Management Co LLC | AUTHENTIDATE HOLDING CORP | 14,763,708 | 29.5% | EDGAR |
| SC 13D/A | 2015-09-14 | Lazarus Management Co LLC | AUTHENTIDATE HOLDING CORP | 14,763,708 | 29.5% | EDGAR |
| SC 13D/A | 2015-08-31 | Lazarus Management Co LLC | AUTHENTIDATE HOLDING CORP | 14,763,708 | 29.5% | EDGAR |
| SC 13D/A | 2015-08-28 | Lazarus Management Co LLC | AUTHENTIDATE HOLDING CORP | 14,763,708 | 29.5% | EDGAR |
| SC 13D/A | 2015-08-18 | Lazarus Management Co LLC | AUTHENTIDATE HOLDING CORP | 14,763,708 | 29.5% | EDGAR |
| SC 13D/A | 2015-08-04 | Lazarus Management Co LLC | AUTHENTIDATE HOLDING CORP | 14,763,708 | 29.5% | EDGAR |
| SC 13D/A | 2015-07-20 | Lazarus Management Co LLC | AUTHENTIDATE HOLDING CORP | 14,763,708 | 29.5% | EDGAR |