MDU Resources | 4: Statement of changes in beneficial ownership of securities-Director SPARBY DAVID M
MDU Resources | SC 13D/A: Statement of acquisition of beneficial ownership by individuals (Amendment)-CORVEX MANAGEMENT LP(4.98%),KEITH MEISTER(4.98%)
MDU Resources | 4: Statement of changes in beneficial ownership of securities-Director Rosenthal Dale
MDU Resources | 4: Statement of changes in beneficial ownership of securities-Officer Jones Anne M
MDU Resources | 4: Statement of changes in beneficial ownership of securities-Officer Vollmer Jason L
MDU Resources | 4: Statement of changes in beneficial ownership of securities-Officer Link Margaret A
MDU Resources | 4: Statement of changes in beneficial ownership of securities-Officer Sievert Stephanie A
MDU Resources | 4: Statement of changes in beneficial ownership of securities-Officer Jones Anne M
MDU Resources | 4: Statement of changes in beneficial ownership of securities-Officer Sanderson Paul R.
MDU Resources | 4: Statement of changes in beneficial ownership of securities-Officer Thiede Jeffrey S
MDU Resources | 4: Statement of changes in beneficial ownership of securities-Officer Kivisto Nicole A
MDU Resources | 4: Statement of changes in beneficial ownership of securities-Officer Johnson Rob L.
MDU Resources | 4: Statement of changes in beneficial ownership of securities-Officer Senger Garret
MDU Resources | SC 13G/A: Statement of acquisition of beneficial ownership by individuals (Amendment)-The Vanguard Group(10.22%)
MDU Resources | SC 13G/A: Statement of acquisition of beneficial ownership by individuals (Amendment)-BlackRock, Inc.(9.3%)
MDU Resources | SC 13G/A: Statement of acquisition of beneficial ownership by individuals (Amendment)-STATE STREET CORPORATION(2.94%)
MDU Resources | 3: Initial statement of beneficial ownership of securities-Officer Senger Garret
MDU Resources | 4: Statement of changes in beneficial ownership of securities-Director SPARBY DAVID M
MDU Resources | 4: Statement of changes in beneficial ownership of securities-Director Wang Chenxi
MDU Resources | 4: Statement of changes in beneficial ownership of securities-Director Ryan Edward A
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