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Filing Detail
Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend]
SEC Accession No. 0000902219-02-000916
Filing Date
2002-02-12
Accepted
2002-02-12 00:00:00
Documents
1

Document Format Files

Seq Description Document Type Size
1 nwpx1.txt SC 13G/A 9320
  Complete submission text file 0000902219-02-000916.txt   11363
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
SIC: 0000

Mailing Address 12005 N BURGARD P O BOX 83149 PORTLAND OR 97203
Business Address 12005 N BURGARD P O BOX 83149 PORTLAND OR 97203 5032851400
NORTHWEST PIPE CO (Subject) CIK: 0001001385 (see all company filings)

IRS No.: 930557988 | State of Incorp.: OR | Fiscal Year End: 1231
Type: SC 13G/A | Act: 34 | File No.: 005-44989 | Film No.: 02535574
SIC: 3317 Steel Pipe & Tubes