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Feb 5, 2025 01:25PM Form SCHEDULE 13G/A NORTHWEST PIPE CO Filed by: BlackRock, Inc.
Nov 14, 2024 02:25PM
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Jan 24, 2024 01:19PM Form SC 13G/A NORTHWEST PIPE CO Filed by: ROYCE & ASSOCIATES LP
Jan 23, 2024 04:15PM
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Feb 8, 2022 04:05PM Form SC 13G/A NORTHWEST PIPE CO Filed by: DIMENSIONAL FUND ADVISORS LP
Feb 1, 2022 05:13PM
Jan 25, 2022 11:37AM
Feb 12, 2021 05:15PM
Feb 10, 2021 11:41AM
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Feb 12, 2020 11:47AM Form SC 13G/A NORTHWEST PIPE CO Filed by: DIMENSIONAL FUND ADVISORS LP
Feb 11, 2020 04:50PM
Feb 5, 2020 12:22PM
Jan 29, 2020 01:51PM
Feb 13, 2019 04:27PM
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Jan 16, 2019 01:00PM Form SC 13G/A NORTHWEST PIPE CO Filed by: ROYCE & ASSOCIATES LP
Jul 9, 2018 04:44PM
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Feb 9, 2018 09:32AM
Feb 2, 2018 12:30PM
Feb 1, 2018 09:36AM
Jan 23, 2018 01:07PM
Feb 14, 2017 03:25PM Form SC 13G/A NORTHWEST PIPE CO Filed by: WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
Feb 9, 2017 08:58AM
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Jan 11, 2017 02:14PM
Jul 8, 2016 02:49PM
Feb 16, 2016 04:01PM
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Feb 9, 2016 04:25PM Form SC 13G/A NORTHWEST PIPE CO Filed by: DIMENSIONAL FUND ADVISORS LP
Feb 8, 2016 09:51AM

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