| Filed On | Filing |
|---|---|
| 01 Feb 2011 | SC 13D/A |
| 20 Mar 2009 | SC 13D/A |
| 18 Sep 2008 | AMENDMENT NO. 7 TO SCHEDULE 13D |
| 16 Feb 2007 | SC 13D AMENDMENT #6 |
| 14 Jun 2006 | SC 13D/A |
| 19 Jan 2006 | CIPHERGEN BIOSYSTEMS, INC. |
| 15 Dec 2004 | SC 13D/A |
| 29 Jun 2004 | SC 13D/A |
| 24 Jun 2002 | SCHEDULE 13D AMENDMENT NO. 1 |
| 22 May 2002 | SCHEDULE 13A AMENDMENT #2 QUEST DIAGNOSTICS INC. |
| 01 Nov 2001 | AMENDMENT TO SCHEDULE 13D |
| 14 May 2001 | AMENDMENT NO.1 TO SCHEDULE 13D |
| 30 Apr 2001 | QUEST DIAGNOSTICS INCORPORATED |
| 02 Apr 2001 | QUEST ET AL SC 13D. AM #2 |
| 01 Aug 2000 | SC 13D/A |
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