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Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material:
SEC Accession No. 0001193125-15-006497
Filing Date
2015-01-09
Accepted
2015-01-09 16:18:52
Documents
2
Effectiveness Date
2015-01-09

Document Format Files

Seq Description Document Type Size
1 DEFA14A d850113ddefa14a.htm DEFA14A 23353
2 GRAPHIC g850113g29w66.jpg GRAPHIC 2969
  Complete submission text file 0001193125-15-006497.txt   28603
Mailing Address 950 MAIN AVENUE SUITE 1300 CLEVELAND OH 44113
Business Address 950 MAIN AVENUE SUITE 1300 CLEVELAND OH 44113 2167810083
OM GROUP INC (Filer) CIK: 0000899723 (see all company filings)

IRS No.: 521736882 | State of Incorp.: DE | Fiscal Year End: 1231
Type: DEFA14A | Act: 34 | File No.: 001-12515 | Film No.: 15519188
SIC: 3990 Miscellaneous Manufacturing Industries