FILINGS
| NWPX 0001001385 | |||
|---|---|---|---|
| Filing Date | Form Type | Description | Document |
| 2012-06-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2012-06-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2012-06-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2012-06-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2012-06-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2012-06-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2012-06-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2012-06-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2012-06-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2012-06-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2012-06-14 | 8-K | FORM 8-K | View Document |
| 2012-05-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2012-05-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2012-05-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2012-05-15 | 10-Q | FORM 10-Q | View Document |
| 2012-05-14 | 8-K | FORM 8-K | View Document |
| 2012-05-11 | NT 10-Q | NOTIFICATION OF LATE FILING | View Document |
| 2012-05-07 | 4 | PRIMARY DOCUMENT | View Document |
| 2012-05-04 | 8-K | FORM 8-K | View Document |
| 2012-04-30 | DEF 14A | DEFINITIVE PROXY STATEMENT | View Document |
| 2012-04-27 | 8-K | FORM 8-K | View Document |
| 2012-04-27 | 10-K | FORM 10-K | View Document |
| 2012-04-27 | 10-Q | FORM 10-Q | View Document |
| 2012-04-27 | 10-Q/A | FORM 10-Q AMENDMENT NO. 1 | View Document |
| 2012-04-27 | 10-Q/A | FORM 10-Q AMENDMENT NO. 1 | View Document |
| 2012-04-20 | 8-K | FORM 8-K | View Document |
| 2012-04-13 | 8-K | FORM 8-K | View Document |
| 2012-04-09 | SC 13G/A | NORTHWEST PIPE COMPANY | View Document |
| 2012-03-30 | 8-K | FORM 8-K | View Document |
| 2012-03-22 | 8-K | FORM 8-K | View Document |
| 2012-03-19 | 4 | PRIMARY DOCUMENT | View Document |
| 2012-03-19 | 4 | PRIMARY DOCUMENT | View Document |
| 2012-03-19 | 4 | PRIMARY DOCUMENT | View Document |
| 2012-03-19 | 4 | PRIMARY DOCUMENT | View Document |
| 2012-03-19 | 4 | PRIMARY DOCUMENT | View Document |
| 2012-03-15 | NT 10-K | NOTIFICATION OF LATE FILING | View Document |
| 2012-03-15 | 8-K | FORM 8-K | View Document |
| 2012-02-14 | SC 13G/A | SCHEDULE 13G/A | View Document |
| 2012-02-13 | SC 13G/A | View Document | |
| 2012-02-10 | SC 13G/A | View Document | |
| 2012-02-08 | SC 13G/A | NORTHWEST PIPE COMPANY 12312011 | View Document |
| 2012-01-25 | SC 13G/A | View Document | |
| 2012-01-20 | UPLOAD | View Document | |
| 2012-01-19 | SC 13G/A | View Document | |
| 2012-01-09 | CORRESP | View Document | |
| 2012-01-04 | 4 | PRIMARY DOCUMENT | View Document |
| 2012-01-04 | 4 | PRIMARY DOCUMENT | View Document |
| 2012-01-04 | 4 | PRIMARY DOCUMENT | View Document |
| 2012-01-04 | 4 | PRIMARY DOCUMENT | View Document |
| 2012-01-04 | 4 | PRIMARY DOCUMENT | View Document |
| 2012-01-04 | 4 | PRIMARY DOCUMENT | View Document |
| 2012-01-04 | 4 | PRIMARY DOCUMENT | View Document |
| 2012-01-04 | 4 | PRIMARY DOCUMENT | View Document |
| 2012-01-04 | 4 | PRIMARY DOCUMENT | View Document |
| 2011-12-29 | UPLOAD | View Document | |
| 2011-12-22 | 8-K | FORM 8-K | View Document |
| 2011-11-16 | 8-K | FORM 8-K | View Document |
| 2011-11-10 | NT 10-Q | NOTIFICATION OF LATE FILING | View Document |
| 2011-10-12 | 8-K | FORM 8-K | View Document |
| 2011-10-12 | 4 | PRIMARY DOCUMENT | View Document |
| 2011-10-12 | 4 | PRIMARY DOCUMENT | View Document |
| 2011-10-12 | 4 | PRIMARY DOCUMENT | View Document |
| 2011-10-12 | 4 | PRIMARY DOCUMENT | View Document |
| 2011-10-12 | 4 | PRIMARY DOCUMENT | View Document |
| 2011-10-12 | 4 | PRIMARY DOCUMENT | View Document |
| 2011-10-12 | 4 | PRIMARY DOCUMENT | View Document |
| 2011-10-12 | 4 | PRIMARY DOCUMENT | View Document |
| 2011-10-12 | 4 | PRIMARY DOCUMENT | View Document |
| 2011-10-04 | 4 | PRIMARY DOCUMENT | View Document |
| 2011-08-25 | 4 | PRIMARY DOCUMENT | View Document |
| 2011-08-11 | 4 | PRIMARY DOCUMENT | View Document |
| 2011-08-08 | 10-Q | FORM 10-Q | View Document |
| 2011-08-08 | 8-K | FORM 8-K | View Document |
| 2011-06-21 | 4 | PRIMARY DOCUMENT | View Document |
| 2011-06-21 | 4 | PRIMARY DOCUMENT | View Document |
| 2011-06-21 | 4 | PRIMARY DOCUMENT | View Document |
| 2011-06-21 | 4 | PRIMARY DOCUMENT | View Document |
| 2011-06-17 | 8-K | FORM 8-K | View Document |
| 2011-05-26 | 8-K | FORM 8-K | View Document |
| 2011-05-25 | 3 | PRIMARY DOCUMENT | View Document |
| 2011-05-19 | 4 | PRIMARY DOCUMENT | View Document |
| 2011-05-18 | 8-K | FORM 8-K | View Document |
| 2011-05-16 | 4 | PRIMARY DOCUMENT | View Document |
| 2011-05-16 | 4 | PRIMARY DOCUMENT | View Document |
| 2011-05-16 | 4 | PRIMARY DOCUMENT | View Document |
| 2011-05-10 | 8-K | FORM 8-K | View Document |
| 2011-05-10 | 10-Q | FORM 10-Q | View Document |
| 2011-04-29 | DEF 14A | DEFINITIVE PROXY STATEMENT | View Document |
| 2011-04-28 | 3 | PRIMARY DOCUMENT | View Document |
| 2011-04-25 | 8-K | FORM 8-K | View Document |
| 2011-04-14 | 8-K | FORM 8-K | View Document |
| 2011-04-13 | SC 13G | View Document | |
| 2011-03-22 | 8-K | FORM 8-K | View Document |
| 2011-03-22 | 10-K | FORM 10-K | View Document |
| 2011-03-17 | 4 | PRIMARY DOCUMENT | View Document |
| 2011-03-17 | 4 | PRIMARY DOCUMENT | View Document |
| 2011-03-17 | 4 | PRIMARY DOCUMENT | View Document |
| 2011-03-17 | 4 | PRIMARY DOCUMENT | View Document |
| 2011-03-17 | 4 | PRIMARY DOCUMENT | View Document |
| 2011-03-17 | NT 10-K | NOTIFICATION OF LATE FILING | View Document |
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