MENTOR GRAPHICS CORP Form SC 13D: Beneficial ownership report (active)
Filings on SEC EDGAR, newest first; amendments sit with their base form. Values are as filed.
- 2016-11-15: Form SC 13D/A; Description NOVEMBER 15, 2016; Document mentor13da-111516.htm.
- 2016-11-14: Form SC 13D/A; Description NOVEMBER 14, 2016; Document mentor13da-111416.htm.
- 2016-09-29: Form SC 13D; Description SEPTEMBER 29, 2016; Document mentor13d-092916.htm.
- 2016-03-08: Form SC 13D/A; Description Beneficial ownership report (active); Document mentsch13damd20030816.htm.
| Filed | Form | Period of report | Description | Document |
|---|---|---|---|---|
| 2016-11-15 | SC 13D/A | NOVEMBER 15, 2016 | mentor13da-111516.htm | |
| 2016-11-14 | SC 13D/A | NOVEMBER 14, 2016 | mentor13da-111416.htm | |
| 2016-09-29 | SC 13D | SEPTEMBER 29, 2016 | mentor13d-092916.htm | |
| 2016-03-08 | SC 13D/A | Beneficial ownership report (active) | mentsch13damd20030816.htm | |
| 2016-03-04 | SC 13D/A | Beneficial ownership report (active) | mentsch13damd19030416.htm | |
| 2016-02-19 | SC 13D/A | Beneficial ownership report (active) | mentsch13damd18021916.htm | |
| 2012-05-17 | SC 13D/A | Beneficial ownership report (active) | mentsch13damd17051712.htm | |
| 2012-05-01 | SC 13D/A | Beneficial ownership report (active) | mentsch13damd16050112.htm | |
| 2012-03-01 | SC 13D/A | MENTOR GRAPHICS CORPORATION | p12-0756sc13da.htm | |
| 2011-08-16 | SC 13D/A | MENTOR GRAPHICS CORPORATION | p11-1515sc13da.htm | |
| 2011-04-26 | SC 13D/A | MENTOR GRAPHICS CORPORATION | p11-1096sc13da.htm | |
| 2011-04-01 | SC 13D/A | CASABLANCA CAPITAL LLC | p11-1060sc13da.htm | |
| 2011-03-31 | SC 13D/A | Beneficial ownership report (active) | mentsch13damd15033111.txt | |
| 2011-03-30 | SC 13D/A | Beneficial ownership report (active) | mentsch13damd14033011.txt | |
| 2011-03-29 | SC 13D/A | Beneficial ownership report (active) | mentsch13damd13032911.txt | |
| 2011-03-14 | SC 13D/A | MENTOR GRAPHICS CORPORATION | p11-0949sc13da.htm | |
| 2011-03-10 | SC 13D/A | MENTOR GRAPHICS CORPORATION | p11-0764sc13da.htm | |
| 2011-02-22 | SC 13D/A | AMENDMENT NO. 12 TO SCHEDULE 13D | dsc13da.htm | |
| 2011-02-16 | SC 13D/A | Beneficial ownership report (active) | mentsch13damd11021611.txt | |
| 2011-02-14 | SC 13D/A | MENTOR GRAPHICS CORPORATION | p11-0455sc13da.htm | |
| 2011-02-11 | SC 13D/A | Beneficial ownership report (active) | mentsch13damd10021011.txt | |
| 2011-02-08 | SC 13D/A | Beneficial ownership report (active) | mentsch13damd9020811.txt | |
| 2011-02-08 | SC 13D/A | Beneficial ownership report (active) | mentsch13damd8020711.txt | |
| 2011-02-08 | SC 13D/A | MENTOR GRAPHICS CORPORATION | p11-0291sc13da.htm | |
| 2011-02-03 | SC 13D | MENTOR GRAPHICS CORPORATION | p11-0220sc13d.htm | |
| 2010-08-24 | SC 13D/A | SC 13D/A | a10-16348_1sc13da.htm | |
| 2010-07-30 | SC 13D/A | Beneficial ownership report (active) | mentsch13damd6073010.txt | |
| 2010-07-22 | SC 13D/A | Beneficial ownership report (active) | mentsch13damd5072210.txt | |
| 2010-07-06 | SC 13D/A | Beneficial ownership report (active) | mentsch13damd4070610.txt | |
| 2010-06-30 | SC 13D/A | Beneficial ownership report (active) | mentsch13damd3063010.txt | |
| 2010-06-22 | SC 13D/A | Beneficial ownership report (active) | mentsch13damd2062210.txt | |
| 2010-06-11 | SC 13D/A | SC 13D/A | a10-11905_1sc13da.htm | |
| 2010-05-27 | SC 13D | Beneficial ownership report (active) | mentsch13d052710.txt | |
| 2006-02-09 | SC 13D | BENEFICIAL OWNERSHIP OF 5% OR MORE | a06-4547_1sc13d.htm | |
| 2002-05-02 | SC 13D | SCHEDULE 13D | f80784sc13d.txt | |
| 2001-12-07 | SC 13D | SCHEDULE 13D - IKOS SYSTEMS, INC. | f77735sc13d.txt | |
| 1997-03-06 | SC 13D | SCHEDULE 13D | ||
| 1996-01-19 | SC 13D | SCHEDULE 13D |