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Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material:
SEC Accession No. 0001193125-15-209340
Filing Date
2015-06-01
Accepted
2015-06-01 17:17:04
Documents
1
Effectiveness Date
2015-06-01

Document Format Files

Seq Description Document Type Size
1 DEFA14A d935820ddefa14a.htm DEFA14A 29787
  Complete submission text file 0001193125-15-209340.txt   30798
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.: 15904427
SIC: 3990 Miscellaneous Manufacturing Industries