Northwest Pipeline LLC Form SC 13G: Beneficial ownership report (passive)
Filings on SEC EDGAR, newest first; amendments sit with their base form. Values are as filed.
- 2011-02-07: Form SC 13G/A; Description Beneficial ownership report (passive); Document northwestpipecompany123110.txt.
- 2010-01-29: Form SC 13G; Description Beneficial ownership report (passive); Document northwestpipe123109.txt.
- 2009-02-05: Form SC 13G; Description Beneficial ownership report (passive); Document northwest123108.txt.
| Filed | Form | Period of report | Description | Document |
|---|---|---|---|---|
| 2011-02-07 | SC 13G/A | Beneficial ownership report (passive) | northwestpipecompany123110.txt | |
| 2010-01-29 | SC 13G | Beneficial ownership report (passive) | northwestpipe123109.txt | |
| 2009-02-05 | SC 13G | Beneficial ownership report (passive) | northwest123108.txt |