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Form SC 13G - Statement of Beneficial Ownership by Certain Investors:
SEC Accession No. 0000902219-08-001218
Filing Date
2008-10-10
Accepted
2008-10-10 15:10:18
Documents
1

Document Format Files

Seq Description Document Type Size
1 SEC FILING sec_filing.htm SC 13G 17806
  Complete submission text file 0000902219-08-001218.txt   19814
Mailing Address 75 STATE STREET BOSTON MA 02109
Business Address 75 STATE STREET BOSTON MA 02109 6179515000
WELLINGTON MANAGEMENT CO LLP (Filed by) CIK: 0000902219 (see all company filings)

IRS No.: 042683227 | State of Incorp.: MA | Fiscal Year End: 1231
Type: SC 13G
SIC: 0000

Mailing Address 4955 STEUBENVILLE PIKE SUITE 405 PITTSBURGH PA 15205
Business Address 4955 STEUBENVILLE PIKE SUITE 405 PITTSBURGH PA 15205 724-773-2212
Horsehead Holding Corp (Subject) CIK: 0001385544 (see all company filings)

IRS No.: 000000000
Type: SC 13G | Act: 34 | File No.: 005-83114 | Film No.: 081118206
SIC: 3330 Primary Smelting & Refining of Nonferrous Metals