Form SCHEDULE 13G MDU RESOURCES GROUP INC Filed by: VANGUARD CAPITAL MANAGEMENT LLC Apr 30, 2026 11:46AM
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Form SCHEDULE 13G MDU RESOURCES GROUP INC Filed by: VANGUARD PORTFOLIO MANAGEMENT LLC Apr 29, 2026 02:15PM
Form SCHEDULE 13G/A MDU RESOURCES GROUP INC Filed by: VANGUARD GROUP INC Mar 27, 2026 10:32AM
Form SCHEDULE 13G/A Knife River Corp Filed by: VANGUARD GROUP INC Mar 27, 2026 10:20AM


Jan 30, 2025 09:58PM Form SCHEDULE 13G/A MDU RESOURCES GROUP INC Filed by: VANGUARD GROUP INC
Feb 13, 2024 04:56PM Form SC 13G/A MDU RESOURCES GROUP INC Filed by: VANGUARD GROUP INC
Feb 9, 2023 10:56AM Form SC 13G/A MDU RESOURCES GROUP INC Filed by: VANGUARD GROUP INC
Feb 9, 2022 03:20PM Form SC 13G/A MDU RESOURCES GROUP INC Filed by: VANGUARD GROUP INC
Feb 10, 2021 10:14AM Form SC 13G/A MDU RESOURCES GROUP INC Filed by: VANGUARD GROUP INC
Feb 12, 2020 06:02AM Form SC 13G/A MDU RESOURCES GROUP INC Filed by: VANGUARD GROUP INC
Feb 11, 2019 03:31PM Form SC 13G/A MDU RESOURCES GROUP INC Filed by: VANGUARD GROUP INC
Feb 9, 2018 11:09AM Form SC 13G/A MDU RESOURCES GROUP INC Filed by: VANGUARD GROUP INC
Feb 10, 2017 01:18PM Form SC 13G/A MDU RESOURCES GROUP INC Filed by: VANGUARD GROUP INC
Feb 10, 2017 11:07AM Form SC 13G/A MDU RESOURCES GROUP INC Filed by: VANGUARD GROUP INC
Feb 10, 2017 08:42AM Form SC 13G/A MDU RESOURCES GROUP INC Filed by: VANGUARD GROUP INC
Feb 10, 2016 02:35PM Form SC 13G/A MDU RESOURCES GROUP INC Filed by: VANGUARD GROUP INC
Feb 11, 2015 10:33AM Form SC 13G/A MDU RESOURCES GROUP INC Filed by: VANGUARD GROUP INC
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