OM GROUP INC Form DEF 14A: Definitive proxy statement
Filings on SEC EDGAR, newest first; amendments sit with their base form. Values are as filed.
- 2015-04-22: Form DEF 14A; Period of report 2015-06-01; Description DEF 14A; Document d871519ddef14a.htm.
- 2014-04-03: Form DEF 14A; Period of report 2014-05-13; Description FORM DEF 14A; Document d669140ddef14a.htm.
- 2013-03-28: Form DEF 14A; Period of report 2013-05-07; Description DEF 14A; Document d482090ddef14a.htm.
- 2012-03-29: Form DEF 14A; Period of report 2012-05-08; Description DEF 14A; Document d284965ddef14a.htm.
| Filed | Form | Period of report | Description | Document |
|---|---|---|---|---|
| 2015-04-22 | DEF 14A | 2015-06-01 | DEF 14A | d871519ddef14a.htm |
| 2014-04-03 | DEF 14A | 2014-05-13 | FORM DEF 14A | d669140ddef14a.htm |
| 2013-03-28 | DEF 14A | 2013-05-07 | DEF 14A | d482090ddef14a.htm |
| 2012-03-29 | DEF 14A | 2012-05-08 | DEF 14A | d284965ddef14a.htm |
| 2011-03-31 | DEF 14A | 2011-05-10 | DEF 14A | l42111def14a.htm |
| 2010-03-31 | DEF 14A | 2010-05-11 | DEF 14A | l38670def14a.htm |
| 2009-04-03 | DEF 14A | 2009-05-12 | FORM DEF 14A | l35869adef14a.htm |
| 2008-04-01 | DEF 14A | 2008-05-13 | OM GROUP, INC. DEF 14A | l30229bdef14a.htm |
| 2007-03-27 | DEF 14A | 2007-05-08 | OM GROUP, INC. DEF 14A | l24443adef14a.htm |
| 2006-03-30 | DEF 14A | 2006-05-02 | OM GROUP, INC. DEF 14A | l17822adef14a.htm |
| 2005-09-01 | DEF 14A | 2005-10-11 | OM GROUP, INC. DEFINITIVE PROXY | l15836adef14a.htm |
| 2003-04-03 | DEF 14A | 2003-05-06 | OM GROUP, INC. 05-06-2003 | l99960adef14a.txt |
| 2002-04-05 | DEF 14A | 2002-05-07 | OM GROUP DEFINITIVE PROXY STATEMENT | ddef14a.htm |
| 2001-04-02 | DEF 14A | 2001-05-08 | PROXY STATEMENT | ddef14a.htm |
| 2000-03-23 | DEF 14A | 2000-05-09 | DEFINITIVE PROXY STATEMENT | 0001077604-00-000123-d1.html |
| 1999-04-02 | DEF 14A | 1999-05-04 | OM GROUP, INC. FORM DEF 14A | |
| 1998-03-26 | DEF 14A | 1998-05-05 | OM GROUP--DEFINITIVE PROXY | |
| 1997-03-21 | DEF 14A | 1997-05-06 | OM GROUP / DEF 14A |