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Form SC 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0000902219-13-000081
Filing Date
2013-02-14
Accepted
2013-02-14 12:13:57
Documents
1

Document Format Files

Seq Description Document Type Size
1 DISCLOSURE DOCUMENT sec_filing.htm SC 13G/A 17754
  Complete submission text file 0000902219-13-000081.txt   19705
Mailing Address AIRSIDE BUSINESS PARK 100 AIRSIDE DRIVE MOON TOWNSHIP PA 15108
Business Address AIRSIDE BUSINESS PARK 100 AIRSIDE DRIVE MOON TOWNSHIP PA 15108 4122696300
MICHAEL BAKER CORP (Subject) CIK: 0000009263 (see all company filings)

IRS No.: 250927646 | State of Incorp.: PA | Fiscal Year End: 1231
Type: SC 13G/A | Act: 34 | File No.: 005-31270 | Film No.: 13608884
SIC: 8741 Services-Management Services

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