OM GROUP INC Form SC 13D: Beneficial ownership report (active)
Filings on SEC EDGAR, newest first; amendments sit with their base form. Values are as filed.
- 2015-06-26: Form SC 13D/A; Description AMENDMENT NO. 5 TO THE SCHEDULE 13D; Document sc13da508016008_06262015.htm.
- 2015-06-05: Form SC 13D/A; Description AMENDMENT NO. 4 TO THE SCHEDULE 13D; Document sc13da408016008_06032015.htm.
- 2015-03-23: Form SC 13D/A; Description AMENDMENT NO. 3 TO THE SCHEDULE 13D; Document sc13da308016008_03232015.htm.
- 2015-03-05: Form SC 13D/A; Description AMENDMENT NO. 2 TO THE SCHEDULE 13D; Document sc13da208016008_03042015.htm.
| Filed | Form | Period of report | Description | Document |
|---|---|---|---|---|
| 2015-06-26 | SC 13D/A | AMENDMENT NO. 5 TO THE SCHEDULE 13D | sc13da508016008_06262015.htm | |
| 2015-06-05 | SC 13D/A | AMENDMENT NO. 4 TO THE SCHEDULE 13D | sc13da408016008_06032015.htm | |
| 2015-03-23 | SC 13D/A | AMENDMENT NO. 3 TO THE SCHEDULE 13D | sc13da308016008_03232015.htm | |
| 2015-03-05 | SC 13D/A | AMENDMENT NO. 2 TO THE SCHEDULE 13D | sc13da208016008_03042015.htm | |
| 2015-01-28 | SC 13D/A | AMENDMENT NO. 1 TO THE SCHEDULE 13D | sc13da108016008_01262015.htm | |
| 2015-01-09 | SC 13D | SCHEDULE 13D | sc13d08016008_01022015.htm |