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Form SC 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0000902219-11-000475
Filing Date
2011-02-14
Accepted
2011-02-14 13:47:37
Documents
1

Document Format Files

Seq Description Document Type Size
1 SEC FILING sec_filing.htm SC 13G/A 17953
  Complete submission text file 0000902219-11-000475.txt   20097
Mailing Address 200 PUBLIC SQUARE STE. 3300 CLEVELAND OH 44114-2315
Business Address 200 PUBLIC SQUARE STE. 3300 CLEVELAND OH 44114-2315 216-694-5700
CLIFFS NATURAL RESOURCES INC. (Subject) CIK: 0000764065 (see all company filings)

IRS No.: 341464672 | State of Incorp.: OH | Fiscal Year End: 1231
Type: SC 13G/A | Act: 34 | File No.: 005-36514 | Film No.: 11605069
SIC: 1000 Metal Mining

Mailing Address 280 CONGRESS STREET BOSTON MA 02210
Business Address 280 CONGRESS STREET BOSTON MA 02210 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/A
SIC: 0000