| Filed On | Filing |
|---|---|
| 10 Apr 2012 | SC 13G |
| 10 Feb 2012 | SC 13G |
| 11 Feb 2011 | SCHEDULE 13G |
| 16 Feb 2010 | SC 13G |
| 29 Jan 2010 | SC 13G |
| 13 Oct 2009 | DOC ONE |
| 18 Mar 2009 | SC 13G |
| 05 Feb 2009 | SC 13G |
| 05 Feb 2008 | SC 13G |
| 05 Feb 2008 | SC 13G |
| 05 Feb 2008 | SC 13G |
| 05 Feb 2008 | SC 13G |
| 05 Feb 2008 | SC 13G |
| 05 Feb 2008 | SC 13G |
| 25 Jan 2007 | SC 13G |
| 23 Jan 2007 | SC 13G |
| 10 Jan 2006 | DOC ONE |
| 15 Aug 2005 | AMENDMENT NO. 1 |
| 03 Aug 2005 | DISCIPLINED GROWTH INVESTORS, 13-G, 6-30-05 |
| 04 May 2005 | DISCIPLINED GROWTH INVESTORS, INC. 13G, 3/31/05 |
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