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Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend]
SEC Accession No. 0001258897-18-001419
Filing Date
2018-02-09
Accepted
2018-02-09 09:29:37
Documents
1

Document Format Files

Seq Description Document Type Size
1 SCHEDULE 13G/A dfs563.htm SC 13G/A 51231
  Complete submission text file 0001258897-18-001419.txt   52913
Mailing Address 6300 BEE CAVE ROAD BUILDING ONE AUSTIN TX 78746
Business Address 6300 BEE CAVE ROAD BUILDING ONE AUSTIN TX 78746 (512) 306-7400
DIMENSIONAL FUND ADVISORS LP (Filed by) CIK: 0000354204 (see all company filings)

IRS No.: 222370029 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G/A
SIC: 0000

Mailing Address 5721 SE COLUMBIA WAY SUITE 200 VANCOUVER WA 98661
Business Address 5721 SE COLUMBIA WAY SUITE 200 VANCOUVER WA 98661 3603976250
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.: 18588662
SIC: 3317 Steel Pipe & Tubes
Office of Manufacturing