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MDU US​
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Logo
  • Home
  • AI Agent
  • Annotations
  • Files
  • Pricing and plans
  • BlogAboutContact us
    APIMCP
    Terms of servicePrivacy policy

  • Get the full experience

    We save the real magic for signed-in users.

MDU US​
HomeStock ScreenerDocument SearchChartingWatchlistsRecent Filings

Mdu Resources Group Inc(MDU US)

$19.59+0.040.20%Ext:$20.30+0.713.62%(Market Closed · 00:55:22 UTC)
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Categorized

Mdu Resources Group Inc(MDU US)

$19.59+0.040.20%Ext:$20.30+0.713.62%(Market Closed · 00:55:22 UTC)
Ask AI
Doc SearchProfileEntity StructureFinancialsChartingShort InterestEmployees

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Categorized
Chronological
By Owner

Financials & Metrics

FinancialsChartingShort InterestEmployees
Chronological
By Owner

Financials & Metrics

FinancialsChartingShort InterestEmployees

SEC Filings by Owner

SEC Filings by Owner

Insider Ownership

EVERIST THOMAS S(117)

  • Form 4Statement of changes in beneficial ownership22 Nov 2022
  • Form 4Statement of changes in beneficial ownership17 Nov 2021
  • Form 4Statement of changes in beneficial ownership15 Jun 2021
  • Form 4Statement of changes in beneficial ownership11 Jun 2021
  • Form 4Statement of changes in beneficial ownership9 Jun 2021
  • Form 4Statement of changes in beneficial ownership8 Jun 2021
  • Form 4Statement of changes in beneficial ownership7 Jun 2021
  • Form 4Statement of changes in beneficial ownership18 Nov 2020
  • Form 4Statement of changes in beneficial ownership20 Nov 2019
  • Form 4PRIMARY DOCUMENT21 Nov 2018

MOSS PATRICIA L(43)

  • Form 4Statement of changes in beneficial ownership22 Nov 2022
  • Form 4Statement of changes in beneficial ownership25 Aug 2022
  • Form 4Statement of changes in beneficial ownership17 Nov 2021
  • Form 4Statement of changes in beneficial ownership24 Feb 2021
  • Form 4Statement of changes in beneficial ownership18 Nov 2020
  • Form 4Statement of changes in beneficial ownership20 Nov 2019
  • Form 4PRIMARY DOCUMENT20 Feb 2019
  • Form 5PRIMARY DOCUMENT9 Jan 2019
  • Form 4PRIMARY DOCUMENT21 Nov 2018
  • Form 5PRIMARY DOCUMENT2 Jan 2018

WILSON JOHN K(39)

  • Form 4Statement of changes in beneficial ownership18 Nov 2020
  • Form 4Statement of changes in beneficial ownership20 Nov 2019
  • Form 4PRIMARY DOCUMENT21 Nov 2018
  • Form 4PRIMARY DOCUMENT7 Dec 2017
  • Form 4PRIMARY DOCUMENT22 Nov 2017
  • Form 4PRIMARY DOCUMENT8 Dec 2016
  • Form 4PRIMARY DOCUMENT22 Nov 2016
  • Form 4PRIMARY DOCUMENT10 Dec 2015
  • Form 4PRIMARY DOCUMENT19 Nov 2015
  • Form 4PRIMARY DOCUMENT11 Dec 2014

LEWIS RICHARD H(38)

  • Form 4PRIMARY DOCUMENT29 Mar 2013
  • Form 4PRIMARY DOCUMENT31 Dec 2012
  • Form 4PRIMARY DOCUMENT20 Nov 2012
  • Form 4PRIMARY DOCUMENT28 Sep 2012
  • Form 4PRIMARY DOCUMENT31 Aug 2012
  • Form 4PRIMARY DOCUMENT29 Jun 2012
  • Form 4PRIMARY DOCUMENT12 Apr 2012
  • Form 4PRIMARY DOCUMENT3 Jan 2012
  • Form 4PRIMARY DOCUMENT22 Nov 2011
  • Form 4PRIMARY DOCUMENT30 Sep 2011

JOHNSON DENNIS W(37)

  • Form 4Statement of changes in beneficial ownership13 Nov
  • Form 4Statement of changes in beneficial ownership14 Nov 2025
  • Form 4Statement of changes in beneficial ownership10 Feb 2025
  • Form 4Statement of changes in beneficial ownership19 Nov 2024
  • Form 4Statement of changes in beneficial ownership17 Nov 2023
  • Form 4Statement of changes in beneficial ownership22 Nov 2022
  • Form 4Statement of changes in beneficial ownership17 Nov 2021
  • Form 4Statement of changes in beneficial ownership18 Nov 2020
  • Form 4Statement of changes in beneficial ownership15 May 2020
  • Form 4Statement of changes in beneficial ownership20 Nov 2019

Holaday A Bart(33)

  • Form 4PRIMARY DOCUMENT30 Mar 2018
  • Form 4PRIMARY DOCUMENT3 Jan 2018
  • Form 4PRIMARY DOCUMENT22 Nov 2017
  • Form 4PRIMARY DOCUMENT2 Oct 2017
  • Form 4PRIMARY DOCUMENT30 Jun 2017
  • Form 4PRIMARY DOCUMENT31 Mar 2017
  • Form 4PRIMARY DOCUMENT3 Jan 2017
  • Form 4PRIMARY DOCUMENT22 Nov 2016
  • Form 4PRIMARY DOCUMENT30 Sep 2016
  • Form 4PRIMARY DOCUMENT30 Jun 2016

SPARBY DAVID M(31)

  • Form 4Statement of changes in beneficial ownership31 Oct 2024
  • Form 4Statement of changes in beneficial ownership30 Sep 2024
  • Form 4Statement of changes in beneficial ownership28 Jun 2024
  • Form 4Statement of changes in beneficial ownership29 Mar 2024
  • Form 4Statement of changes in beneficial ownership17 Nov 2023
  • Form 4Statement of changes in beneficial ownership30 Dec 2022
  • Form 4Statement of changes in beneficial ownership22 Nov 2022
  • Form 4Statement of changes in beneficial ownership30 Sep 2022
  • Form 4Statement of changes in beneficial ownership30 Jun 2022
  • Form 4Statement of changes in beneficial ownership31 Mar 2022

HELLERSTEIN MARK A(29)

  • Form 4Statement of changes in beneficial ownership18 Nov 2020
  • Form 4Statement of changes in beneficial ownership20 Nov 2019
  • Form 4PRIMARY DOCUMENT31 Dec 2018
  • Form 4PRIMARY DOCUMENT21 Nov 2018
  • Form 4PRIMARY DOCUMENT28 Sep 2018
  • Form 4PRIMARY DOCUMENT29 Jun 2018
  • Form 4PRIMARY DOCUMENT30 Mar 2018
  • Form 4PRIMARY DOCUMENT3 Jan 2018
  • Form 4PRIMARY DOCUMENT22 Nov 2017
  • Form 4PRIMARY DOCUMENT2 Oct 2017

PEARCE HARRY J(27)

  • Form 4PRIMARY DOCUMENT21 Nov 2018
  • Form 4PRIMARY DOCUMENT22 Nov 2017
  • Form 4PRIMARY DOCUMENT22 Nov 2016
  • Form 4PRIMARY DOCUMENT19 Nov 2015
  • Form 4PRIMARY DOCUMENT20 Nov 2014
  • Form 4PRIMARY DOCUMENT22 Nov 2013
  • Form 4PRIMARY DOCUMENT20 Nov 2012
  • Form 4PRIMARY DOCUMENT22 Nov 2011
  • Form 4PRIMARY DOCUMENT24 May 2010
  • Form 4PRIMARY DOCUMENT18 May 2010

Goodin David L(26)

  • Form 4Statement of changes in beneficial ownership16 Feb 2024
  • Form 4Statement of changes in beneficial ownership1 Jun 2023
  • Form 4Statement of changes in beneficial ownership21 Feb 2023
  • Form 4Statement of changes in beneficial ownership22 Feb 2022
  • Form 5Annual statement of beneficial ownership13 Jan 2022
  • Form 4Statement of changes in beneficial ownership16 Feb 2021
  • Form 4Statement of changes in beneficial ownership28 Feb 2022
  • Form 4Statement of changes in beneficial ownership13 May 2020
  • Form 4Statement of changes in beneficial ownership18 Feb 2020
  • Form 4PRIMARY DOCUMENT31 May 2019

Kivisto Nicole A(24)

  • Form 4Statement of changes in beneficial ownership19 Feb
  • Form 4Statement of changes in beneficial ownership14 Feb 2025
  • Form 4Statement of changes in beneficial ownership16 Feb 2024
  • Form 4Statement of changes in beneficial ownership1 Jun 2023
  • Form 4Statement of changes in beneficial ownership21 Feb 2023
  • Form 4Statement of changes in beneficial ownership22 Feb 2022
  • Form 4Statement of changes in beneficial ownership14 Jun 2021
  • Form 4Statement of changes in beneficial ownership9 Jun 2021
  • Form 4Statement of changes in beneficial ownership28 Feb 2022
  • Form 4Statement of changes in beneficial ownership16 Feb 2021

Fagg Karen B(23)

  • Form 4Statement of changes in beneficial ownership22 Nov 2022
  • Form 4Statement of changes in beneficial ownership17 Nov 2021
  • Form 4Statement of changes in beneficial ownership18 Nov 2020
  • Form 4Statement of changes in beneficial ownership20 Nov 2019
  • Form 4PRIMARY DOCUMENT21 Nov 2018
  • Form 4PRIMARY DOCUMENT22 Nov 2017
  • Form 4PRIMARY DOCUMENT22 Nov 2016
  • Form 4PRIMARY DOCUMENT19 Nov 2015
  • Form 4PRIMARY DOCUMENT20 Nov 2014
  • Form 4PRIMARY DOCUMENT21 Nov 2013

NANCE ROBERT L(22)

  • Form 4PRIMARY DOCUMENT3 Jul 2006
  • Form 4PRIMARY DOCUMENT2 May 2006
  • Form 4PRIMARY DOCUMENT3 Apr 2006
  • Form 4PRIMARY DOCUMENT3 Jan 2006
  • Form 4PRIMARY DOCUMENT3 Oct 2005
  • Form 4PRIMARY DOCUMENT12 Aug 2005
  • Form 4PRIMARY DOCUMENT1 Jul 2005
  • Form 4PRIMARY DOCUMENT1 Jun 2005
  • Form 4PRIMARY DOCUMENT3 May 2005
  • Form 4PRIMARY DOCUMENT4 Apr 2005

Schwartz Doran N(22)

  • Form 5PRIMARY DOCUMENT18 Jan 2018
  • Form 4PRIMARY DOCUMENT21 Feb 2017
  • Form 4PRIMARY DOCUMENT16 Feb 2016
  • Form 4PRIMARY DOCUMENT27 Feb 2015
  • Form 4PRIMARY DOCUMENT19 Feb 2015
  • Form 4PRIMARY DOCUMENT18 Feb 2014
  • Form 4PRIMARY DOCUMENT24 Jun 2013
  • Form 4PRIMARY DOCUMENT29 May 2012
  • Form 4PRIMARY DOCUMENT25 May 2012
  • Form 4PRIMARY DOCUMENT24 May 2012

RAILE VERNON A(21)

  • Form 4PRIMARY DOCUMENT16 Feb 2010
  • Form 5PRIMARY DOCUMENT3 Feb 2010
  • Form 4PRIMARY DOCUMENT17 Feb 2009
  • Form 4PRIMARY DOCUMENT19 Feb 2008
  • Form 4PRIMARY DOCUMENT26 Feb 2007
  • Form 4PRIMARY DOCUMENT20 Feb 2007
  • Form 4PRIMARY DOCUMENT21 Feb 2006
  • Form 4PRIMARY DOCUMENT23 Nov 2005
  • Form 4PRIMARY DOCUMENT29 Aug 2005
  • Form 4PRIMARY DOCUMENT26 Aug 2005

Vollmer Jason L(18)

  • Form 4Statement of changes in beneficial ownership19 Feb
  • Form 4Statement of changes in beneficial ownership9 Sep 2025
  • Form 4Statement of changes in beneficial ownership19 Aug 2025
  • Form 4Statement of changes in beneficial ownership14 Feb 2025
  • Form 4Statement of changes in beneficial ownership16 Feb 2024
  • Form 4Statement of changes in beneficial ownership1 Jun 2023
  • Form 4Statement of changes in beneficial ownership21 Feb 2023
  • Form 4Statement of changes in beneficial ownership22 Feb 2022
  • Form 4Statement of changes in beneficial ownership28 Feb 2022
  • Form 4Statement of changes in beneficial ownership16 Feb 2021

Ryan Edward A(16)

  • Form 4Statement of changes in beneficial ownership17 Nov 2023
  • Form 4Statement of changes in beneficial ownership22 Nov 2022
  • Form 4Statement of changes in beneficial ownership3 Jan 2022
  • Form 4Statement of changes in beneficial ownership17 Nov 2021
  • Form 4Statement of changes in beneficial ownership1 Oct 2021
  • Form 4Statement of changes in beneficial ownership1 Jul 2021
  • Form 4Statement of changes in beneficial ownership1 Apr 2021
  • Form 4Statement of changes in beneficial ownership31 Dec 2020
  • Form 4Statement of changes in beneficial ownership18 Nov 2020
  • Form 4Statement of changes in beneficial ownership2 Oct 2020

Jones Anne M(14)

  • Form 4Statement of changes in beneficial ownership19 Feb
  • Form 4Statement of changes in beneficial ownership14 Feb 2025
  • Form 4Statement of changes in beneficial ownership26 Feb 2024
  • Form 4Statement of changes in beneficial ownership16 Feb 2024
  • Form 4Statement of changes in beneficial ownership1 Jun 2023
  • Form 4Statement of changes in beneficial ownership21 Feb 2023
  • Form 4Statement of changes in beneficial ownership22 Feb 2022
  • Form 4Statement of changes in beneficial ownership28 Feb 2022
  • Form 4Statement of changes in beneficial ownership16 Feb 2021
  • Form 4Statement of changes in beneficial ownership18 Feb 2020

HILDESTAD TERRY D(13)

  • Form 4PRIMARY DOCUMENT1 Dec 2010
  • Form 4PRIMARY DOCUMENT26 May 2010
  • Form 4PRIMARY DOCUMENT17 Feb 2010
  • Form 4PRIMARY DOCUMENT16 Feb 2010
  • Form 4PRIMARY DOCUMENT17 Feb 2009
  • Form 4PRIMARY DOCUMENT19 Feb 2008
  • Form 4PRIMARY DOCUMENT22 Feb 2007
  • Form 4PRIMARY DOCUMENT20 Feb 2007
  • Form 4PRIMARY DOCUMENT21 Feb 2006
  • Form 4PRIMARY DOCUMENT25 Feb 2005

Bietz Steven L(13)

  • Form 4PRIMARY DOCUMENT20 Feb 2014
  • Form 4PRIMARY DOCUMENT18 Feb 2014
  • Form 4/APRIMARY DOCUMENT29 Dec 2014
  • Form 4PRIMARY DOCUMENT8 May 2013
  • Form 4PRIMARY DOCUMENT17 Feb 2010
  • Form 4PRIMARY DOCUMENT16 Feb 2010
  • Form 4PRIMARY DOCUMENT11 Aug 2009
  • Form 4PRIMARY DOCUMENT20 May 2009
  • Form 4PRIMARY DOCUMENT17 Feb 2009
  • Form 4PRIMARY DOCUMENT19 Feb 2008

Schneider William E(12)

  • Form 4PRIMARY DOCUMENT7 May 2013
  • Form 4PRIMARY DOCUMENT30 Nov 2012
  • Form 5PRIMARY DOCUMENT3 Feb 2012
  • Form 4PRIMARY DOCUMENT8 Nov 2010
  • Form 4PRIMARY DOCUMENT17 Feb 2010
  • Form 4PRIMARY DOCUMENT16 Feb 2010
  • Form 4PRIMARY DOCUMENT17 Feb 2009
  • Form 4PRIMARY DOCUMENT19 Feb 2008
  • Form 4PRIMARY DOCUMENT27 Feb 2007
  • Form 4PRIMARY DOCUMENT20 Feb 2007

Link Margaret A(12)

  • Form 4Statement of changes in beneficial ownership16 Feb 2024
  • Form 4Statement of changes in beneficial ownership1 Jun 2023
  • Form 4Statement of changes in beneficial ownership21 Feb 2023
  • Form 4Statement of changes in beneficial ownership22 Feb 2022
  • Form 4Statement of changes in beneficial ownership28 Feb 2022
  • Form 4Statement of changes in beneficial ownership16 Feb 2021
  • Form 4Statement of changes in beneficial ownership26 May 2020
  • Form 4Statement of changes in beneficial ownership18 May 2020
  • Form 4Statement of changes in beneficial ownership18 Feb 2020
  • Form 4PRIMARY DOCUMENT19 Feb 2019

Sievert Stephanie A(12)

  • Form 4Statement of changes in beneficial ownership19 Feb
  • Form 4Statement of changes in beneficial ownership14 Feb 2025
  • Form 4Statement of changes in beneficial ownership16 Feb 2024
  • Form 4Statement of changes in beneficial ownership1 Jun 2023
  • Form 4Statement of changes in beneficial ownership21 Feb 2023
  • Form 4Statement of changes in beneficial ownership22 Feb 2022
  • Form 4Statement of changes in beneficial ownership16 Feb 2021
  • Form 4Statement of changes in beneficial ownership28 Feb 2022
  • Form 4Statement of changes in beneficial ownership18 May 2020
  • Form 4Statement of changes in beneficial ownership18 Feb 2020

CASTLEBERRY JOHN K(11)

  • Form 4PRIMARY DOCUMENT20 Feb 2007
  • Form 4PRIMARY DOCUMENT21 Feb 2006
  • Form 4PRIMARY DOCUMENT20 May 2005
  • Form 4PRIMARY DOCUMENT18 May 2005
  • Form 4PRIMARY DOCUMENT17 May 2005
  • Form 4PRIMARY DOCUMENT13 May 2005
  • Form 4PRIMARY DOCUMENT22 Feb 2005
  • Form 4PRIMARY DOCUMENT24 Nov 2004
  • Form 4PRIMARY DOCUMENT24 Aug 2004
  • Form 4PRIMARY DOCUMENT20 Aug 2004

NORLAND CYNTHIA J(11)

  • Form 4PRIMARY DOCUMENT16 Feb 2016
  • Form 4PRIMARY DOCUMENT25 Feb 2015
  • Form 4PRIMARY DOCUMENT15 Aug 2014
  • Form 4PRIMARY DOCUMENT13 May 2014
  • Form 4PRIMARY DOCUMENT18 Feb 2014
  • Form 4PRIMARY DOCUMENT16 Feb 2010
  • Form 4PRIMARY DOCUMENT17 Feb 2009
  • Form 4PRIMARY DOCUMENT25 Nov 2008
  • Form 4PRIMARY DOCUMENT19 Feb 2008
  • Form 3PRIMARY DOCUMENT18 Jul 2007

DURKIN MARIAN M(11)

  • Form 4Statement of changes in beneficial ownership13 Nov
  • Form 4Statement of changes in beneficial ownership1 Oct
  • Form 4Statement of changes in beneficial ownership1 Jul
  • Form 4Statement of changes in beneficial ownership1 Apr
  • Form 4Statement of changes in beneficial ownership2 Jan
  • Form 4Statement of changes in beneficial ownership14 Nov 2025
  • Form 4Statement of changes in beneficial ownership1 Oct 2025
  • Form 4Statement of changes in beneficial ownership1 Jul 2025
  • Form 4Statement of changes in beneficial ownership1 Apr 2025
  • Form 4Statement of changes in beneficial ownership19 Nov 2024

Barney David C(11)

  • Form 4Statement of changes in beneficial ownership21 Feb 2023
  • Form 4Statement of changes in beneficial ownership22 Feb 2022
  • Form 4Statement of changes in beneficial ownership28 Feb 2022
  • Form 4Statement of changes in beneficial ownership16 Feb 2021
  • Form 4Statement of changes in beneficial ownership14 May 2020
  • Form 4Statement of changes in beneficial ownership18 Feb 2020
  • Form 4PRIMARY DOCUMENT19 Feb 2019
  • Form 4PRIMARY DOCUMENT20 Feb 2018
  • Form 4/APRIMARY DOCUMENT21 Feb 2017
  • Form 4PRIMARY DOCUMENT21 Feb 2017

Thiede Jeffrey S(11)

  • Form 4Statement of changes in beneficial ownership16 Feb 2024
  • Form 4Statement of changes in beneficial ownership1 Jun 2023
  • Form 4Statement of changes in beneficial ownership21 Feb 2023
  • Form 4Statement of changes in beneficial ownership22 Feb 2022
  • Form 4Statement of changes in beneficial ownership28 Feb 2022
  • Form 4Statement of changes in beneficial ownership16 Feb 2021
  • Form 4Statement of changes in beneficial ownership18 Feb 2020
  • Form 4PRIMARY DOCUMENT19 Feb 2019
  • Form 4PRIMARY DOCUMENT20 Feb 2018
  • Form 4PRIMARY DOCUMENT21 Feb 2017

Dosch Vernon A.(11)

  • Form 4Statement of changes in beneficial ownership13 Nov
  • Form 4Statement of changes in beneficial ownership1 Oct
  • Form 4Statement of changes in beneficial ownership1 Jul
  • Form 4Statement of changes in beneficial ownership1 Apr
  • Form 4Statement of changes in beneficial ownership2 Jan
  • Form 4Statement of changes in beneficial ownership14 Nov 2025
  • Form 4Statement of changes in beneficial ownership1 Oct 2025
  • Form 4Statement of changes in beneficial ownership1 Jul 2025
  • Form 4Statement of changes in beneficial ownership1 Apr 2025
  • Form 4Statement of changes in beneficial ownership19 Nov 2024

SANDNESS PAUL K(10)

  • Form 4PRIMARY DOCUMENT13 May 2014
  • Form 4PRIMARY DOCUMENT18 Feb 2014
  • Form 4PRIMARY DOCUMENT16 Feb 2010
  • Form 4PRIMARY DOCUMENT18 Nov 2009
  • Form 4PRIMARY DOCUMENT27 May 2009
  • Form 4PRIMARY DOCUMENT25 Feb 2009
  • Form 4PRIMARY DOCUMENT17 Feb 2009
  • Form 4PRIMARY DOCUMENT19 Feb 2008
  • Form 4PRIMARY DOCUMENT19 May 2005
  • Form 3PRIMARY DOCUMENT6 Apr 2004

Harp John G(10)

  • Form 4PRIMARY DOCUMENT16 Feb 2010
  • Form 4PRIMARY DOCUMENT22 May 2009
  • Form 4PRIMARY DOCUMENT20 May 2009
  • Form 4PRIMARY DOCUMENT19 May 2009
  • Form 4PRIMARY DOCUMENT19 May 2009
  • Form 4PRIMARY DOCUMENT18 May 2009
  • Form 4PRIMARY DOCUMENT17 Feb 2009
  • Form 4PRIMARY DOCUMENT25 Feb 2008
  • Form 4PRIMARY DOCUMENT19 Feb 2008
  • Form 3PRIMARY DOCUMENT22 Nov 2006

WHITE MARTIN A(9)

  • Form 4PRIMARY DOCUMENT21 Feb 2006
  • Form 5PRIMARY DOCUMENT30 Jan 2006
  • Form 4PRIMARY DOCUMENT22 Feb 2005
  • Form 4PRIMARY DOCUMENT30 Aug 2004
  • Form 4PRIMARY DOCUMENT25 Aug 2004
  • Form 4PRIMARY DOCUMENT24 Aug 2004
  • Form 4PRIMARY DOCUMENT23 Aug 2004
  • Form 4PRIMARY DOCUMENT17 Feb 2004
  • Form 4PRIMARY DOCUMENT20 Aug 2003

Hastings Trevor J(9)

  • Form 4Statement of changes in beneficial ownership1 Jun 2023
  • Form 4Statement of changes in beneficial ownership21 Feb 2023
  • Form 4Statement of changes in beneficial ownership22 Feb 2022
  • Form 4Statement of changes in beneficial ownership28 Feb 2022
  • Form 4Statement of changes in beneficial ownership16 Feb 2021
  • Form 4Statement of changes in beneficial ownership18 Feb 2020
  • Form 4PRIMARY DOCUMENT19 Feb 2019
  • Form 4PRIMARY DOCUMENT20 Feb 2018
  • Form 3PRIMARY DOCUMENT19 Oct 2017

OLSON JOHN L(8)

  • Form 4PRIMARY DOCUMENT20 May 2009
  • Form 4PRIMARY DOCUMENT16 May 2008
  • Form 4PRIMARY DOCUMENT29 Apr 2008
  • Form 4PRIMARY DOCUMENT15 Nov 2007
  • Form 4PRIMARY DOCUMENT1 May 2007
  • Form 4PRIMARY DOCUMENT1 May 2006
  • Form 4PRIMARY DOCUMENT3 May 2005
  • Form 4PRIMARY DOCUMENT6 May 2004

ROBINSON WARREN L(8)

  • Form 4PRIMARY DOCUMENT23 Nov 2005
  • Form 4PRIMARY DOCUMENT10 Nov 2005
  • Form 4PRIMARY DOCUMENT22 Feb 2005
  • Form 5PRIMARY DOCUMENT31 Jan 2005
  • Form 4/APRIMARY DOCUMENT15 Mar 2004
  • Form 4PRIMARY DOCUMENT20 Feb 2004
  • Form 4PRIMARY DOCUMENT17 Feb 2004
  • Form 4PRIMARY DOCUMENT20 Aug 2003

WOOD ROBERT E(8)

  • Form 4PRIMARY DOCUMENT21 Feb 2006
  • Form 4PRIMARY DOCUMENT20 May 2005
  • Form 4PRIMARY DOCUMENT17 May 2005
  • Form 4PRIMARY DOCUMENT22 Feb 2005
  • Form 4PRIMARY DOCUMENT19 Aug 2004
  • Form 4PRIMARY DOCUMENT17 Feb 2004
  • Form 4PRIMARY DOCUMENT6 Feb 2004
  • Form 4PRIMARY DOCUMENT27 Aug 2003

Stumpf John P(8)

  • Form 4PRIMARY DOCUMENT18 Feb 2014
  • Form 4PRIMARY DOCUMENT16 Feb 2010
  • Form 4PRIMARY DOCUMENT17 Feb 2009
  • Form 4PRIMARY DOCUMENT28 May 2008
  • Form 4PRIMARY DOCUMENT19 Feb 2008
  • Form 4PRIMARY DOCUMENT29 Aug 2007
  • Form 4PRIMARY DOCUMENT20 Feb 2007
  • Form 3PRIMARY DOCUMENT5 Dec 2006

Connors William R(8)

  • Form 4PRIMARY DOCUMENT24 Feb 2014
  • Form 4PRIMARY DOCUMENT18 Feb 2014
  • Form 4PRIMARY DOCUMENT15 Nov 2011
  • Form 4PRIMARY DOCUMENT14 Nov 2011
  • Form 4PRIMARY DOCUMENT16 Nov 2009
  • Form 4PRIMARY DOCUMENT25 Feb 2009
  • Form 4PRIMARY DOCUMENT17 Feb 2009
  • Form 3PRIMARY DOCUMENT5 Sep 2008

MCCRACKEN WILLIAM E(7)

  • Form 4PRIMARY DOCUMENT21 Nov 2018
  • Form 4PRIMARY DOCUMENT22 Nov 2017
  • Form 4PRIMARY DOCUMENT22 Nov 2016
  • Form 4PRIMARY DOCUMENT19 Nov 2015
  • Form 4PRIMARY DOCUMENT20 Nov 2014
  • Form 4PRIMARY DOCUMENT21 Nov 2013
  • Form 3PRIMARY DOCUMENT9 Aug 2013

Knudson Thomas C(7)

  • Form 4PRIMARY DOCUMENT21 Nov 2013
  • Form 4PRIMARY DOCUMENT20 Nov 2012
  • Form 4PRIMARY DOCUMENT22 Nov 2011
  • Form 4PRIMARY DOCUMENT18 May 2010
  • Form 4PRIMARY DOCUMENT19 May 2009
  • Form 4PRIMARY DOCUMENT8 May 2009
  • Form 3PRIMARY DOCUMENT6 Nov 2008

Imsdahl Bruce T(7)

  • Form 4PRIMARY DOCUMENT19 Feb 2008
  • Form 4PRIMARY DOCUMENT20 Feb 2007
  • Form 4PRIMARY DOCUMENT21 Feb 2006
  • Form 4PRIMARY DOCUMENT3 Feb 2006
  • Form 4PRIMARY DOCUMENT22 Feb 2005
  • Form 4PRIMARY DOCUMENT30 Nov 2004
  • Form 3PRIMARY DOCUMENT24 Nov 2004

Kuntz Daniel S(7)

  • Form 4Statement of changes in beneficial ownership18 Feb 2020
  • Form 4PRIMARY DOCUMENT19 Feb 2019
  • Form 4PRIMARY DOCUMENT20 Feb 2018
  • Form 4PRIMARY DOCUMENT21 Feb 2017
  • Form 4PRIMARY DOCUMENT16 Feb 2016
  • Form 3/APRIMARY DOCUMENT5 May 2016
  • Form 3PRIMARY DOCUMENT13 Jan 2016

Wang Chenxi(7)

  • Form 4Statement of changes in beneficial ownership19 Nov 2024
  • Form 4Statement of changes in beneficial ownership17 Nov 2023
  • Form 4Statement of changes in beneficial ownership22 Nov 2022
  • Form 4Statement of changes in beneficial ownership17 Nov 2021
  • Form 4Statement of changes in beneficial ownership18 Nov 2020
  • Form 4Statement of changes in beneficial ownership20 Nov 2019
  • Form 3PRIMARY DOCUMENT8 May 2019

WELDER SISTER THOMAS(6)

  • Form 4PRIMARY DOCUMENT20 May 2009
  • Form 4PRIMARY DOCUMENT30 Apr 2008
  • Form 4PRIMARY DOCUMENT30 Apr 2007
  • Form 4PRIMARY DOCUMENT1 May 2006
  • Form 4PRIMARY DOCUMENT3 May 2005
  • Form 4PRIMARY DOCUMENT6 May 2004

CHRISTOPHERSON CATHLEEN M(6)

  • Form 4PRIMARY DOCUMENT1 Jun 2005
  • Form 4PRIMARY DOCUMENT2 Mar 2005
  • Form 4PRIMARY DOCUMENT22 Feb 2005
  • Form 4PRIMARY DOCUMENT29 Nov 2004
  • Form 4PRIMARY DOCUMENT2 Mar 2004
  • Form 4PRIMARY DOCUMENT17 Feb 2004

Del Vecchio Mark A(6)

  • Form 4PRIMARY DOCUMENT18 Feb 2014
  • Form 4PRIMARY DOCUMENT16 Feb 2010
  • Form 4PRIMARY DOCUMENT17 Feb 2009
  • Form 4PRIMARY DOCUMENT19 Feb 2008
  • Form 3PRIMARY DOCUMENT4 Oct 2007
  • Form 3/APRIMARY DOCUMENT11 Dec 2008

Haider Dennis L(6)

  • Form 5PRIMARY DOCUMENT19 Jan 2018
  • Form 4PRIMARY DOCUMENT21 Feb 2017
  • Form 4PRIMARY DOCUMENT16 Feb 2016
  • Form 4PRIMARY DOCUMENT18 Feb 2014
  • Form 3PRIMARY DOCUMENT5 Jun 2013
  • Form 3/APRIMARY DOCUMENT7 Aug 2013

Johnson Rob L.(6)

  • Form 4Statement of changes in beneficial ownership19 Feb
  • Form 4Statement of changes in beneficial ownership14 Feb 2025
  • Form 4Statement of changes in beneficial ownership8 May 2024
  • Form 4Statement of changes in beneficial ownership16 Feb 2024
  • Form 4Statement of changes in beneficial ownership12 Jul 2023
  • Form 3Initial statement of beneficial ownership1 Jun 2023

MDU RESOURCES GROUP INC(5)

  • Form 4Statement of changes in beneficial ownership1 Nov 2024
  • Form 3Initial statement of beneficial ownership17 Oct 2024
  • Form 4Statement of changes in beneficial ownership13 Nov 2023
  • Form 4Statement of changes in beneficial ownership2 Jun 2023
  • Form 3Initial statement of beneficial ownership10 May 2023

ANDERSON DARREL T(5)

  • Form 4Statement of changes in beneficial ownership13 Nov
  • Form 4Statement of changes in beneficial ownership14 Nov 2025
  • Form 4Statement of changes in beneficial ownership19 Nov 2024
  • Form 4Statement of changes in beneficial ownership17 Nov 2023
  • Form 3Initial statement of beneficial ownership17 Nov 2023

REDDING CINDY C(5)

  • Form 4PRIMARY DOCUMENT20 Feb 2007
  • Form 4PRIMARY DOCUMENT21 Feb 2006
  • Form 4PRIMARY DOCUMENT22 Feb 2005
  • Form 4PRIMARY DOCUMENT24 Nov 2003
  • Form 3PRIMARY DOCUMENT11 Jul 2003

Mahowald Douglass A(5)

  • Form 4PRIMARY DOCUMENT24 Feb 2014
  • Form 4PRIMARY DOCUMENT21 Feb 2014
  • Form 4PRIMARY DOCUMENT18 Feb 2014
  • Form 4PRIMARY DOCUMENT1 Dec 2010
  • Form 3PRIMARY DOCUMENT23 Feb 2010

Rosenthal Dale(5)

  • Form 4Statement of changes in beneficial ownership13 Mar 2024
  • Form 4Statement of changes in beneficial ownership17 Nov 2023
  • Form 4Statement of changes in beneficial ownership22 Nov 2022
  • Form 4Statement of changes in beneficial ownership17 Nov 2021
  • Form 3Initial statement of beneficial ownership17 May 2021

SPLICHAL DARYL A(4)

  • Form 4PRIMARY DOCUMENT21 Feb 2006
  • Form 4PRIMARY DOCUMENT22 Feb 2005
  • Form 4PRIMARY DOCUMENT17 Feb 2004
  • Form 3PRIMARY DOCUMENT9 Jan 2004

KELLEY CHARLES M(4)

  • Form 4Statement of changes in beneficial ownership13 Nov
  • Form 4Statement of changes in beneficial ownership17 Feb
  • Form 4Statement of changes in beneficial ownership14 Nov 2025
  • Form 3Initial statement of beneficial ownership14 Aug 2025

Liepitz Karl A(4)

  • Form 4Statement of changes in beneficial ownership1 Jun 2023
  • Form 4Statement of changes in beneficial ownership21 Feb 2023
  • Form 4Statement of changes in beneficial ownership28 Feb 2022
  • Form 3Initial statement of beneficial ownership8 Feb 2021

Senger Garret(4)

  • Form 4Statement of changes in beneficial ownership19 Feb
  • Form 4Statement of changes in beneficial ownership14 Feb 2025
  • Form 4Statement of changes in beneficial ownership16 Feb 2024
  • Form 3Initial statement of beneficial ownership9 Jan 2024

Jaeger Douglas W.(4)

  • Form 4Statement of changes in beneficial ownership13 Nov
  • Form 4Statement of changes in beneficial ownership14 Nov 2025
  • Form 4Statement of changes in beneficial ownership19 Nov 2024
  • Form 3Initial statement of beneficial ownership16 May 2024

Boese Dyke A.(4)

  • Form 4Statement of changes in beneficial ownership19 Feb
  • Form 4Statement of changes in beneficial ownership16 Jul 2025
  • Form 4Statement of changes in beneficial ownership14 Feb 2025
  • Form 3Initial statement of beneficial ownership14 Jan 2025

ALBERTSON BRUCE R(3)

  • Form 4PRIMARY DOCUMENT4 Jan 2005
  • Form 4PRIMARY DOCUMENT6 May 2004
  • Form 4PRIMARY DOCUMENT2 Jan 2004

SCOTT HOMER A JR(3)

  • Form 4PRIMARY DOCUMENT4 Jan 2005
  • Form 4PRIMARY DOCUMENT6 May 2004
  • Form 4PRIMARY DOCUMENT5 Jan 2004

TIPTON RONALD D(3)

  • Form 4PRIMARY DOCUMENT17 Aug 2004
  • Form 4PRIMARY DOCUMENT17 Feb 2004
  • Form 4PRIMARY DOCUMENT22 Aug 2003

Gatzemeier Paul(3)

  • Form 4PRIMARY DOCUMENT21 Feb 2006
  • Form 4PRIMARY DOCUMENT22 Feb 2005
  • Form 3PRIMARY DOCUMENT21 Sep 2004

WELLS JAMES KENT(3)

  • Form 4PRIMARY DOCUMENT25 May 2012
  • Form 4PRIMARY DOCUMENT21 Feb 2012
  • Form 3PRIMARY DOCUMENT4 May 2011

Morehouse Kenneth Frank(3)

  • Form 4PRIMARY DOCUMENT13 May 2014
  • Form 4PRIMARY DOCUMENT18 Feb 2014
  • Form 3PRIMARY DOCUMENT8 Jan 2013

Foti Anthony Donald(3)

  • Form 4Statement of changes in beneficial ownership19 Feb
  • Form 4Statement of changes in beneficial ownership14 Feb 2025
  • Form 3Initial statement of beneficial ownership9 Oct 2024

Sanderson Paul R.(3)

  • Form 4Statement of changes in beneficial ownership16 Feb 2024
  • Form 4Statement of changes in beneficial ownership12 Jul 2023
  • Form 3Initial statement of beneficial ownership1 Jun 2023

Miller Tammy J(3)

  • Form 4Statement of changes in beneficial ownership13 Nov
  • Form 4Statement of changes in beneficial ownership14 Nov 2025
  • Form 3Initial statement of beneficial ownership14 Aug 2025

Patel Priti Rashmikant(3)

  • Form 4Statement of changes in beneficial ownership13 Nov
  • Form 4Statement of changes in beneficial ownership14 Nov 2025
  • Form 3Initial statement of beneficial ownership19 May 2025

WILSON FLOYD E(2)

  • Form 4PRIMARY DOCUMENT22 Feb 2005
  • Form 4PRIMARY DOCUMENT17 Feb 2004

Ring Nathan W(2)

  • Form 4PRIMARY DOCUMENT8 May 2014
  • Form 3PRIMARY DOCUMENT8 Jan 2014

Carmona-Alvarez German(2)

  • Form 4Statement of changes in beneficial ownership22 Nov 2022
  • Form 3Initial statement of beneficial ownership21 Nov 2022

Gemmel James H.(2)

  • Form 4Statement of changes in beneficial ownership17 Nov 2023
  • Form 3Initial statement of beneficial ownership12 May 2023

LOBLE LESTER H II(1)

  • Form 4PRIMARY DOCUMENT28 Aug 2003

Moylan Daniel B(1)

  • Form 3PRIMARY DOCUMENT10 Jan 2006

FRITZ MARTIN A(1)

  • Form 3PRIMARY DOCUMENT27 Jul 2015

O'Bryan Patrick L(1)

  • Form 3PRIMARY DOCUMENT3 Mar 2015

DELLA ROCCA MICHAEL(1)

  • Form 3Initial statement of beneficial ownership21 Aug 2024

Gray Brian R.(1)

  • Form 3Initial statement of beneficial ownership3 Mar 2023

≥5% Ownership

VANGUARD GROUP INC(16)

  • SC 13G/AMdu Resources Group Inc27 Mar
  • SC 13G/AMdu Resources Group Inc30 Jan 2025
  • SC 13G/AMdu Resources Group Inc13 Feb 2024
  • SC 13G/AMdu Resources Group Inc9 Feb 2023
  • SC 13G/AMdu Resources Group Inc9 Feb 2022
  • SC 13G/AMdu Resources Group Inc10 Feb 2021
  • SC 13G/AMdu Resources Group Inc12 Feb 2020
  • SC 13G/AMdu Resources Group Inc11 Feb 2019
  • SC 13G/AMdu Resources Group Inc9 Feb 2018
  • SC 13G/AMdu Resources Group Inc10 Feb 2017

BlackRock Inc.(16)

  • SC 13G/AMdu Resources Group Inc24 Jan 2024
  • SC 13GMdu Resources Group Inc24 Jan 2023
  • SC 13G/AMdu Resources Group Inc1 Feb 2022
  • SC 13G/AMdu Resources Group Inc29 Jan 2021
  • SC 13G/AMdu Resources Group Inc4 Feb 2020
  • SC 13G/AMdu Resources Group Inc7 Jun 2019
  • SC 13G/AMdu Resources Group Inc6 Feb 2019
  • SC 13G/AMdu Resources Group Inc25 Jan 2018
  • SC 13G/AMdu Resources Group Inc25 Jan 2017
  • SC 13G/AMdu Resources Group Inc26 Jan 2016

NEW YORK LIFE TRUST CO(15)

  • SC 13G/AMdu Resources Group Inc14 Feb 2013
  • SC 13G/AMdu Resources Group Inc14 Feb 2012
  • SC 13G/AMdu Resources Group Inc11 Feb 2011
  • SC 13G/AMdu Resources Group Inc12 Feb 2010
  • SC 13G/AMdu Resources Group Inc13 Feb 2009
  • SC 13G/AMdu Resources Group Inc14 Feb 2008
  • SC 13G/AMdu Resources Group Inc15 Feb 2007
  • SC 13G/AMdu Resources Group Inc13 Feb 2006
  • SC 13G/AMdu Resources Group Inc15 Feb 2005
  • SC 13G/AMdu Resources Group Inc18 Feb 2004

STATE STREET CORP(12)

  • SC 13G/AMdu Resources Group Inc23 Jan 2024
  • SC 13G/AMdu Resources Group Inc10 Feb 2023
  • SC 13G/AMdu Resources Group Inc11 Feb 2022
  • SC 13GMdu Resources Group Inc9 Feb 2021
  • SC 13GMdu Resources Group Inc14 Feb 2020
  • SC 13GMdu Resources Group Inc14 Feb 2019
  • SC 13GMdu Resources Group Inc14 Feb 2018
  • SC 13GMdu Resources Group Inc9 Feb 2017
  • SC 13GMdu Resources Group Inc16 Feb 2016
  • SC 13GMdu Resources Group Inc12 Feb 2015

Corvex Management LP(7)

  • SC 13D/AMdu Resources Group Inc1 Nov 2024
  • SC 13D/AMdu Resources Group Inc18 Mar 2024
  • SC 13D/AMdu Resources Group Inc12 May 2023
  • SC 13D/AMdu Resources Group Inc24 Apr 2023
  • SC 13D/AMdu Resources Group Inc24 Jan 2023
  • SC 13D/AMdu Resources Group Inc3 Nov 2022
  • SC 13DMdu Resources Group Inc8 Aug 2022

PARNASSUS INVESTMENTS /CA(5)

  • SC 13G/AMdu Resources Group Inc13 Feb 2019
  • SC 13G/AMdu Resources Group Inc12 Feb 2018
  • SC 13G/AMdu Resources Group Inc14 Feb 2017
  • SC 13G/AMdu Resources Group Inc12 Feb 2016
  • SC 13GMdu Resources Group Inc12 Feb 2015

BARROW HANLEY MEWHINNEY & STRAUSS LLC(4)

  • SC 13GMdu Resources Group Inc12 Nov
  • SC 13GMdu Resources Group Inc12 Aug
  • SC 13GMdu Resources Group Inc13 May
  • SC 13GMdu Resources Group Inc11 Feb

PRICE T ROWE ASSOCIATES INC /MD/(3)

  • SC 13G/AMdu Resources Group Inc12 Feb 2014
  • SC 13G/AMdu Resources Group Inc7 Feb 2013
  • SC 13GMdu Resources Group Inc14 Feb 2012

DIMENSIONAL FUND ADVISORS LP(3)

  • SC 13GMdu Resources Group Inc8 Oct
  • SC 13G/AMdu Resources Group Inc14 Jul
  • SC 13GMdu Resources Group Inc9 Apr

MORSE J FRANKLIN(2)

  • SC 13G/AMdu Resources Group Inc29 Apr 1998
  • SC 13GMdu Resources Group Inc13 Mar 1998

BARCLAYS GLOBAL INVESTORS NA /CA/(1)

  • SC 13GMdu Resources Group Inc5 Feb 2009

BlackRock, Inc.(1)

  • SC 13G/AMdu Resources Group Inc7 Nov 2024

VANGUARD CAPITAL MANAGEMENT LLC(1)

  • SC 13GMdu Resources Group Inc30 Apr

VANGUARD PORTFOLIO MANAGEMENT LLC(1)

  • SC 13GMdu Resources Group Inc29 Apr

Insider Ownership

EVERIST THOMAS S(117)

  • Form 4Statement of changes in beneficial ownership22 Nov 2022
  • Form 4Statement of changes in beneficial ownership17 Nov 2021
  • Form 4Statement of changes in beneficial ownership15 Jun 2021
  • Form 4Statement of changes in beneficial ownership11 Jun 2021
  • Form 4Statement of changes in beneficial ownership9 Jun 2021
  • Form 4Statement of changes in beneficial ownership8 Jun 2021
  • Form 4Statement of changes in beneficial ownership7 Jun 2021
  • Form 4Statement of changes in beneficial ownership18 Nov 2020
  • Form 4Statement of changes in beneficial ownership20 Nov 2019
  • Form 4PRIMARY DOCUMENT21 Nov 2018

MOSS PATRICIA L(43)

  • Form 4Statement of changes in beneficial ownership22 Nov 2022
  • Form 4Statement of changes in beneficial ownership25 Aug 2022
  • Form 4Statement of changes in beneficial ownership17 Nov 2021
  • Form 4Statement of changes in beneficial ownership24 Feb 2021
  • Form 4Statement of changes in beneficial ownership18 Nov 2020
  • Form 4Statement of changes in beneficial ownership20 Nov 2019
  • Form 4PRIMARY DOCUMENT20 Feb 2019
  • Form 5PRIMARY DOCUMENT9 Jan 2019
  • Form 4PRIMARY DOCUMENT21 Nov 2018
  • Form 5PRIMARY DOCUMENT2 Jan 2018

WILSON JOHN K(39)

  • Form 4Statement of changes in beneficial ownership18 Nov 2020
  • Form 4Statement of changes in beneficial ownership20 Nov 2019
  • Form 4PRIMARY DOCUMENT21 Nov 2018
  • Form 4PRIMARY DOCUMENT7 Dec 2017
  • Form 4PRIMARY DOCUMENT22 Nov 2017
  • Form 4PRIMARY DOCUMENT8 Dec 2016
  • Form 4PRIMARY DOCUMENT22 Nov 2016
  • Form 4PRIMARY DOCUMENT10 Dec 2015
  • Form 4PRIMARY DOCUMENT19 Nov 2015
  • Form 4PRIMARY DOCUMENT11 Dec 2014

LEWIS RICHARD H(38)

  • Form 4PRIMARY DOCUMENT29 Mar 2013
  • Form 4PRIMARY DOCUMENT31 Dec 2012
  • Form 4PRIMARY DOCUMENT20 Nov 2012
  • Form 4PRIMARY DOCUMENT28 Sep 2012
  • Form 4PRIMARY DOCUMENT31 Aug 2012
  • Form 4PRIMARY DOCUMENT29 Jun 2012
  • Form 4PRIMARY DOCUMENT12 Apr 2012
  • Form 4PRIMARY DOCUMENT3 Jan 2012
  • Form 4PRIMARY DOCUMENT22 Nov 2011
  • Form 4PRIMARY DOCUMENT30 Sep 2011

JOHNSON DENNIS W(37)

  • Form 4Statement of changes in beneficial ownership13 Nov
  • Form 4Statement of changes in beneficial ownership14 Nov 2025
  • Form 4Statement of changes in beneficial ownership10 Feb 2025
  • Form 4Statement of changes in beneficial ownership19 Nov 2024
  • Form 4Statement of changes in beneficial ownership17 Nov 2023
  • Form 4Statement of changes in beneficial ownership22 Nov 2022
  • Form 4Statement of changes in beneficial ownership17 Nov 2021
  • Form 4Statement of changes in beneficial ownership18 Nov 2020
  • Form 4Statement of changes in beneficial ownership15 May 2020
  • Form 4Statement of changes in beneficial ownership20 Nov 2019

Holaday A Bart(33)

  • Form 4PRIMARY DOCUMENT30 Mar 2018
  • Form 4PRIMARY DOCUMENT3 Jan 2018
  • Form 4PRIMARY DOCUMENT22 Nov 2017
  • Form 4PRIMARY DOCUMENT2 Oct 2017
  • Form 4PRIMARY DOCUMENT30 Jun 2017
  • Form 4PRIMARY DOCUMENT31 Mar 2017
  • Form 4PRIMARY DOCUMENT3 Jan 2017
  • Form 4PRIMARY DOCUMENT22 Nov 2016
  • Form 4PRIMARY DOCUMENT30 Sep 2016
  • Form 4PRIMARY DOCUMENT30 Jun 2016

SPARBY DAVID M(31)

  • Form 4Statement of changes in beneficial ownership31 Oct 2024
  • Form 4Statement of changes in beneficial ownership30 Sep 2024
  • Form 4Statement of changes in beneficial ownership28 Jun 2024
  • Form 4Statement of changes in beneficial ownership29 Mar 2024
  • Form 4Statement of changes in beneficial ownership17 Nov 2023
  • Form 4Statement of changes in beneficial ownership30 Dec 2022
  • Form 4Statement of changes in beneficial ownership22 Nov 2022
  • Form 4Statement of changes in beneficial ownership30 Sep 2022
  • Form 4Statement of changes in beneficial ownership30 Jun 2022
  • Form 4Statement of changes in beneficial ownership31 Mar 2022

HELLERSTEIN MARK A(29)

  • Form 4Statement of changes in beneficial ownership18 Nov 2020
  • Form 4Statement of changes in beneficial ownership20 Nov 2019
  • Form 4PRIMARY DOCUMENT31 Dec 2018
  • Form 4PRIMARY DOCUMENT21 Nov 2018
  • Form 4PRIMARY DOCUMENT28 Sep 2018
  • Form 4PRIMARY DOCUMENT29 Jun 2018
  • Form 4PRIMARY DOCUMENT30 Mar 2018
  • Form 4PRIMARY DOCUMENT3 Jan 2018
  • Form 4PRIMARY DOCUMENT22 Nov 2017
  • Form 4PRIMARY DOCUMENT2 Oct 2017

PEARCE HARRY J(27)

  • Form 4PRIMARY DOCUMENT21 Nov 2018
  • Form 4PRIMARY DOCUMENT22 Nov 2017
  • Form 4PRIMARY DOCUMENT22 Nov 2016
  • Form 4PRIMARY DOCUMENT19 Nov 2015
  • Form 4PRIMARY DOCUMENT20 Nov 2014
  • Form 4PRIMARY DOCUMENT22 Nov 2013
  • Form 4PRIMARY DOCUMENT20 Nov 2012
  • Form 4PRIMARY DOCUMENT22 Nov 2011
  • Form 4PRIMARY DOCUMENT24 May 2010
  • Form 4PRIMARY DOCUMENT18 May 2010

Goodin David L(26)

  • Form 4Statement of changes in beneficial ownership16 Feb 2024
  • Form 4Statement of changes in beneficial ownership1 Jun 2023
  • Form 4Statement of changes in beneficial ownership21 Feb 2023
  • Form 4Statement of changes in beneficial ownership22 Feb 2022
  • Form 5Annual statement of beneficial ownership13 Jan 2022
  • Form 4Statement of changes in beneficial ownership16 Feb 2021
  • Form 4Statement of changes in beneficial ownership28 Feb 2022
  • Form 4Statement of changes in beneficial ownership13 May 2020
  • Form 4Statement of changes in beneficial ownership18 Feb 2020
  • Form 4PRIMARY DOCUMENT31 May 2019

Kivisto Nicole A(24)

  • Form 4Statement of changes in beneficial ownership19 Feb
  • Form 4Statement of changes in beneficial ownership14 Feb 2025
  • Form 4Statement of changes in beneficial ownership16 Feb 2024
  • Form 4Statement of changes in beneficial ownership1 Jun 2023
  • Form 4Statement of changes in beneficial ownership21 Feb 2023
  • Form 4Statement of changes in beneficial ownership22 Feb 2022
  • Form 4Statement of changes in beneficial ownership14 Jun 2021
  • Form 4Statement of changes in beneficial ownership9 Jun 2021
  • Form 4Statement of changes in beneficial ownership28 Feb 2022
  • Form 4Statement of changes in beneficial ownership16 Feb 2021

Fagg Karen B(23)

  • Form 4Statement of changes in beneficial ownership22 Nov 2022
  • Form 4Statement of changes in beneficial ownership17 Nov 2021
  • Form 4Statement of changes in beneficial ownership18 Nov 2020
  • Form 4Statement of changes in beneficial ownership20 Nov 2019
  • Form 4PRIMARY DOCUMENT21 Nov 2018
  • Form 4PRIMARY DOCUMENT22 Nov 2017
  • Form 4PRIMARY DOCUMENT22 Nov 2016
  • Form 4PRIMARY DOCUMENT19 Nov 2015
  • Form 4PRIMARY DOCUMENT20 Nov 2014
  • Form 4PRIMARY DOCUMENT21 Nov 2013

NANCE ROBERT L(22)

  • Form 4PRIMARY DOCUMENT3 Jul 2006
  • Form 4PRIMARY DOCUMENT2 May 2006
  • Form 4PRIMARY DOCUMENT3 Apr 2006
  • Form 4PRIMARY DOCUMENT3 Jan 2006
  • Form 4PRIMARY DOCUMENT3 Oct 2005
  • Form 4PRIMARY DOCUMENT12 Aug 2005
  • Form 4PRIMARY DOCUMENT1 Jul 2005
  • Form 4PRIMARY DOCUMENT1 Jun 2005
  • Form 4PRIMARY DOCUMENT3 May 2005
  • Form 4PRIMARY DOCUMENT4 Apr 2005

Schwartz Doran N(22)

  • Form 5PRIMARY DOCUMENT18 Jan 2018
  • Form 4PRIMARY DOCUMENT21 Feb 2017
  • Form 4PRIMARY DOCUMENT16 Feb 2016
  • Form 4PRIMARY DOCUMENT27 Feb 2015
  • Form 4PRIMARY DOCUMENT19 Feb 2015
  • Form 4PRIMARY DOCUMENT18 Feb 2014
  • Form 4PRIMARY DOCUMENT24 Jun 2013
  • Form 4PRIMARY DOCUMENT29 May 2012
  • Form 4PRIMARY DOCUMENT25 May 2012
  • Form 4PRIMARY DOCUMENT24 May 2012

RAILE VERNON A(21)

  • Form 4PRIMARY DOCUMENT16 Feb 2010
  • Form 5PRIMARY DOCUMENT3 Feb 2010
  • Form 4PRIMARY DOCUMENT17 Feb 2009
  • Form 4PRIMARY DOCUMENT19 Feb 2008
  • Form 4PRIMARY DOCUMENT26 Feb 2007
  • Form 4PRIMARY DOCUMENT20 Feb 2007
  • Form 4PRIMARY DOCUMENT21 Feb 2006
  • Form 4PRIMARY DOCUMENT23 Nov 2005
  • Form 4PRIMARY DOCUMENT29 Aug 2005
  • Form 4PRIMARY DOCUMENT26 Aug 2005

Vollmer Jason L(18)

  • Form 4Statement of changes in beneficial ownership19 Feb
  • Form 4Statement of changes in beneficial ownership9 Sep 2025
  • Form 4Statement of changes in beneficial ownership19 Aug 2025
  • Form 4Statement of changes in beneficial ownership14 Feb 2025
  • Form 4Statement of changes in beneficial ownership16 Feb 2024
  • Form 4Statement of changes in beneficial ownership1 Jun 2023
  • Form 4Statement of changes in beneficial ownership21 Feb 2023
  • Form 4Statement of changes in beneficial ownership22 Feb 2022
  • Form 4Statement of changes in beneficial ownership28 Feb 2022
  • Form 4Statement of changes in beneficial ownership16 Feb 2021

Ryan Edward A(16)

  • Form 4Statement of changes in beneficial ownership17 Nov 2023
  • Form 4Statement of changes in beneficial ownership22 Nov 2022
  • Form 4Statement of changes in beneficial ownership3 Jan 2022
  • Form 4Statement of changes in beneficial ownership17 Nov 2021
  • Form 4Statement of changes in beneficial ownership1 Oct 2021
  • Form 4Statement of changes in beneficial ownership1 Jul 2021
  • Form 4Statement of changes in beneficial ownership1 Apr 2021
  • Form 4Statement of changes in beneficial ownership31 Dec 2020
  • Form 4Statement of changes in beneficial ownership18 Nov 2020
  • Form 4Statement of changes in beneficial ownership2 Oct 2020

Jones Anne M(14)

  • Form 4Statement of changes in beneficial ownership19 Feb
  • Form 4Statement of changes in beneficial ownership14 Feb 2025
  • Form 4Statement of changes in beneficial ownership26 Feb 2024
  • Form 4Statement of changes in beneficial ownership16 Feb 2024
  • Form 4Statement of changes in beneficial ownership1 Jun 2023
  • Form 4Statement of changes in beneficial ownership21 Feb 2023
  • Form 4Statement of changes in beneficial ownership22 Feb 2022
  • Form 4Statement of changes in beneficial ownership28 Feb 2022
  • Form 4Statement of changes in beneficial ownership16 Feb 2021
  • Form 4Statement of changes in beneficial ownership18 Feb 2020

HILDESTAD TERRY D(13)

  • Form 4PRIMARY DOCUMENT1 Dec 2010
  • Form 4PRIMARY DOCUMENT26 May 2010
  • Form 4PRIMARY DOCUMENT17 Feb 2010
  • Form 4PRIMARY DOCUMENT16 Feb 2010
  • Form 4PRIMARY DOCUMENT17 Feb 2009
  • Form 4PRIMARY DOCUMENT19 Feb 2008
  • Form 4PRIMARY DOCUMENT22 Feb 2007
  • Form 4PRIMARY DOCUMENT20 Feb 2007
  • Form 4PRIMARY DOCUMENT21 Feb 2006
  • Form 4PRIMARY DOCUMENT25 Feb 2005

Bietz Steven L(13)

  • Form 4PRIMARY DOCUMENT20 Feb 2014
  • Form 4PRIMARY DOCUMENT18 Feb 2014
  • Form 4/APRIMARY DOCUMENT29 Dec 2014
  • Form 4PRIMARY DOCUMENT8 May 2013
  • Form 4PRIMARY DOCUMENT17 Feb 2010
  • Form 4PRIMARY DOCUMENT16 Feb 2010
  • Form 4PRIMARY DOCUMENT11 Aug 2009
  • Form 4PRIMARY DOCUMENT20 May 2009
  • Form 4PRIMARY DOCUMENT17 Feb 2009
  • Form 4PRIMARY DOCUMENT19 Feb 2008

Schneider William E(12)

  • Form 4PRIMARY DOCUMENT7 May 2013
  • Form 4PRIMARY DOCUMENT30 Nov 2012
  • Form 5PRIMARY DOCUMENT3 Feb 2012
  • Form 4PRIMARY DOCUMENT8 Nov 2010
  • Form 4PRIMARY DOCUMENT17 Feb 2010
  • Form 4PRIMARY DOCUMENT16 Feb 2010
  • Form 4PRIMARY DOCUMENT17 Feb 2009
  • Form 4PRIMARY DOCUMENT19 Feb 2008
  • Form 4PRIMARY DOCUMENT27 Feb 2007
  • Form 4PRIMARY DOCUMENT20 Feb 2007

Link Margaret A(12)

  • Form 4Statement of changes in beneficial ownership16 Feb 2024
  • Form 4Statement of changes in beneficial ownership1 Jun 2023
  • Form 4Statement of changes in beneficial ownership21 Feb 2023
  • Form 4Statement of changes in beneficial ownership22 Feb 2022
  • Form 4Statement of changes in beneficial ownership28 Feb 2022
  • Form 4Statement of changes in beneficial ownership16 Feb 2021
  • Form 4Statement of changes in beneficial ownership26 May 2020
  • Form 4Statement of changes in beneficial ownership18 May 2020
  • Form 4Statement of changes in beneficial ownership18 Feb 2020
  • Form 4PRIMARY DOCUMENT19 Feb 2019

Sievert Stephanie A(12)

  • Form 4Statement of changes in beneficial ownership19 Feb
  • Form 4Statement of changes in beneficial ownership14 Feb 2025
  • Form 4Statement of changes in beneficial ownership16 Feb 2024
  • Form 4Statement of changes in beneficial ownership1 Jun 2023
  • Form 4Statement of changes in beneficial ownership21 Feb 2023
  • Form 4Statement of changes in beneficial ownership22 Feb 2022
  • Form 4Statement of changes in beneficial ownership16 Feb 2021
  • Form 4Statement of changes in beneficial ownership28 Feb 2022
  • Form 4Statement of changes in beneficial ownership18 May 2020
  • Form 4Statement of changes in beneficial ownership18 Feb 2020

CASTLEBERRY JOHN K(11)

  • Form 4PRIMARY DOCUMENT20 Feb 2007
  • Form 4PRIMARY DOCUMENT21 Feb 2006
  • Form 4PRIMARY DOCUMENT20 May 2005
  • Form 4PRIMARY DOCUMENT18 May 2005
  • Form 4PRIMARY DOCUMENT17 May 2005
  • Form 4PRIMARY DOCUMENT13 May 2005
  • Form 4PRIMARY DOCUMENT22 Feb 2005
  • Form 4PRIMARY DOCUMENT24 Nov 2004
  • Form 4PRIMARY DOCUMENT24 Aug 2004
  • Form 4PRIMARY DOCUMENT20 Aug 2004

NORLAND CYNTHIA J(11)

  • Form 4PRIMARY DOCUMENT16 Feb 2016
  • Form 4PRIMARY DOCUMENT25 Feb 2015
  • Form 4PRIMARY DOCUMENT15 Aug 2014
  • Form 4PRIMARY DOCUMENT13 May 2014
  • Form 4PRIMARY DOCUMENT18 Feb 2014
  • Form 4PRIMARY DOCUMENT16 Feb 2010
  • Form 4PRIMARY DOCUMENT17 Feb 2009
  • Form 4PRIMARY DOCUMENT25 Nov 2008
  • Form 4PRIMARY DOCUMENT19 Feb 2008
  • Form 3PRIMARY DOCUMENT18 Jul 2007

DURKIN MARIAN M(11)

  • Form 4Statement of changes in beneficial ownership13 Nov
  • Form 4Statement of changes in beneficial ownership1 Oct
  • Form 4Statement of changes in beneficial ownership1 Jul
  • Form 4Statement of changes in beneficial ownership1 Apr
  • Form 4Statement of changes in beneficial ownership2 Jan
  • Form 4Statement of changes in beneficial ownership14 Nov 2025
  • Form 4Statement of changes in beneficial ownership1 Oct 2025
  • Form 4Statement of changes in beneficial ownership1 Jul 2025
  • Form 4Statement of changes in beneficial ownership1 Apr 2025
  • Form 4Statement of changes in beneficial ownership19 Nov 2024

Barney David C(11)

  • Form 4Statement of changes in beneficial ownership21 Feb 2023
  • Form 4Statement of changes in beneficial ownership22 Feb 2022
  • Form 4Statement of changes in beneficial ownership28 Feb 2022
  • Form 4Statement of changes in beneficial ownership16 Feb 2021
  • Form 4Statement of changes in beneficial ownership14 May 2020
  • Form 4Statement of changes in beneficial ownership18 Feb 2020
  • Form 4PRIMARY DOCUMENT19 Feb 2019
  • Form 4PRIMARY DOCUMENT20 Feb 2018
  • Form 4/APRIMARY DOCUMENT21 Feb 2017
  • Form 4PRIMARY DOCUMENT21 Feb 2017

Thiede Jeffrey S(11)

  • Form 4Statement of changes in beneficial ownership16 Feb 2024
  • Form 4Statement of changes in beneficial ownership1 Jun 2023
  • Form 4Statement of changes in beneficial ownership21 Feb 2023
  • Form 4Statement of changes in beneficial ownership22 Feb 2022
  • Form 4Statement of changes in beneficial ownership28 Feb 2022
  • Form 4Statement of changes in beneficial ownership16 Feb 2021
  • Form 4Statement of changes in beneficial ownership18 Feb 2020
  • Form 4PRIMARY DOCUMENT19 Feb 2019
  • Form 4PRIMARY DOCUMENT20 Feb 2018
  • Form 4PRIMARY DOCUMENT21 Feb 2017

Dosch Vernon A.(11)

  • Form 4Statement of changes in beneficial ownership13 Nov
  • Form 4Statement of changes in beneficial ownership1 Oct
  • Form 4Statement of changes in beneficial ownership1 Jul
  • Form 4Statement of changes in beneficial ownership1 Apr
  • Form 4Statement of changes in beneficial ownership2 Jan
  • Form 4Statement of changes in beneficial ownership14 Nov 2025
  • Form 4Statement of changes in beneficial ownership1 Oct 2025
  • Form 4Statement of changes in beneficial ownership1 Jul 2025
  • Form 4Statement of changes in beneficial ownership1 Apr 2025
  • Form 4Statement of changes in beneficial ownership19 Nov 2024

SANDNESS PAUL K(10)

  • Form 4PRIMARY DOCUMENT13 May 2014
  • Form 4PRIMARY DOCUMENT18 Feb 2014
  • Form 4PRIMARY DOCUMENT16 Feb 2010
  • Form 4PRIMARY DOCUMENT18 Nov 2009
  • Form 4PRIMARY DOCUMENT27 May 2009
  • Form 4PRIMARY DOCUMENT25 Feb 2009
  • Form 4PRIMARY DOCUMENT17 Feb 2009
  • Form 4PRIMARY DOCUMENT19 Feb 2008
  • Form 4PRIMARY DOCUMENT19 May 2005
  • Form 3PRIMARY DOCUMENT6 Apr 2004

Harp John G(10)

  • Form 4PRIMARY DOCUMENT16 Feb 2010
  • Form 4PRIMARY DOCUMENT22 May 2009
  • Form 4PRIMARY DOCUMENT20 May 2009
  • Form 4PRIMARY DOCUMENT19 May 2009
  • Form 4PRIMARY DOCUMENT19 May 2009
  • Form 4PRIMARY DOCUMENT18 May 2009
  • Form 4PRIMARY DOCUMENT17 Feb 2009
  • Form 4PRIMARY DOCUMENT25 Feb 2008
  • Form 4PRIMARY DOCUMENT19 Feb 2008
  • Form 3PRIMARY DOCUMENT22 Nov 2006

WHITE MARTIN A(9)

  • Form 4PRIMARY DOCUMENT21 Feb 2006
  • Form 5PRIMARY DOCUMENT30 Jan 2006
  • Form 4PRIMARY DOCUMENT22 Feb 2005
  • Form 4PRIMARY DOCUMENT30 Aug 2004
  • Form 4PRIMARY DOCUMENT25 Aug 2004
  • Form 4PRIMARY DOCUMENT24 Aug 2004
  • Form 4PRIMARY DOCUMENT23 Aug 2004
  • Form 4PRIMARY DOCUMENT17 Feb 2004
  • Form 4PRIMARY DOCUMENT20 Aug 2003

Hastings Trevor J(9)

  • Form 4Statement of changes in beneficial ownership1 Jun 2023
  • Form 4Statement of changes in beneficial ownership21 Feb 2023
  • Form 4Statement of changes in beneficial ownership22 Feb 2022
  • Form 4Statement of changes in beneficial ownership28 Feb 2022
  • Form 4Statement of changes in beneficial ownership16 Feb 2021
  • Form 4Statement of changes in beneficial ownership18 Feb 2020
  • Form 4PRIMARY DOCUMENT19 Feb 2019
  • Form 4PRIMARY DOCUMENT20 Feb 2018
  • Form 3PRIMARY DOCUMENT19 Oct 2017

OLSON JOHN L(8)

  • Form 4PRIMARY DOCUMENT20 May 2009
  • Form 4PRIMARY DOCUMENT16 May 2008
  • Form 4PRIMARY DOCUMENT29 Apr 2008
  • Form 4PRIMARY DOCUMENT15 Nov 2007
  • Form 4PRIMARY DOCUMENT1 May 2007
  • Form 4PRIMARY DOCUMENT1 May 2006
  • Form 4PRIMARY DOCUMENT3 May 2005
  • Form 4PRIMARY DOCUMENT6 May 2004

ROBINSON WARREN L(8)

  • Form 4PRIMARY DOCUMENT23 Nov 2005
  • Form 4PRIMARY DOCUMENT10 Nov 2005
  • Form 4PRIMARY DOCUMENT22 Feb 2005
  • Form 5PRIMARY DOCUMENT31 Jan 2005
  • Form 4/APRIMARY DOCUMENT15 Mar 2004
  • Form 4PRIMARY DOCUMENT20 Feb 2004
  • Form 4PRIMARY DOCUMENT17 Feb 2004
  • Form 4PRIMARY DOCUMENT20 Aug 2003

WOOD ROBERT E(8)

  • Form 4PRIMARY DOCUMENT21 Feb 2006
  • Form 4PRIMARY DOCUMENT20 May 2005
  • Form 4PRIMARY DOCUMENT17 May 2005
  • Form 4PRIMARY DOCUMENT22 Feb 2005
  • Form 4PRIMARY DOCUMENT19 Aug 2004
  • Form 4PRIMARY DOCUMENT17 Feb 2004
  • Form 4PRIMARY DOCUMENT6 Feb 2004
  • Form 4PRIMARY DOCUMENT27 Aug 2003

Stumpf John P(8)

  • Form 4PRIMARY DOCUMENT18 Feb 2014
  • Form 4PRIMARY DOCUMENT16 Feb 2010
  • Form 4PRIMARY DOCUMENT17 Feb 2009
  • Form 4PRIMARY DOCUMENT28 May 2008
  • Form 4PRIMARY DOCUMENT19 Feb 2008
  • Form 4PRIMARY DOCUMENT29 Aug 2007
  • Form 4PRIMARY DOCUMENT20 Feb 2007
  • Form 3PRIMARY DOCUMENT5 Dec 2006

Connors William R(8)

  • Form 4PRIMARY DOCUMENT24 Feb 2014
  • Form 4PRIMARY DOCUMENT18 Feb 2014
  • Form 4PRIMARY DOCUMENT15 Nov 2011
  • Form 4PRIMARY DOCUMENT14 Nov 2011
  • Form 4PRIMARY DOCUMENT16 Nov 2009
  • Form 4PRIMARY DOCUMENT25 Feb 2009
  • Form 4PRIMARY DOCUMENT17 Feb 2009
  • Form 3PRIMARY DOCUMENT5 Sep 2008

MCCRACKEN WILLIAM E(7)

  • Form 4PRIMARY DOCUMENT21 Nov 2018
  • Form 4PRIMARY DOCUMENT22 Nov 2017
  • Form 4PRIMARY DOCUMENT22 Nov 2016
  • Form 4PRIMARY DOCUMENT19 Nov 2015
  • Form 4PRIMARY DOCUMENT20 Nov 2014
  • Form 4PRIMARY DOCUMENT21 Nov 2013
  • Form 3PRIMARY DOCUMENT9 Aug 2013

Knudson Thomas C(7)

  • Form 4PRIMARY DOCUMENT21 Nov 2013
  • Form 4PRIMARY DOCUMENT20 Nov 2012
  • Form 4PRIMARY DOCUMENT22 Nov 2011
  • Form 4PRIMARY DOCUMENT18 May 2010
  • Form 4PRIMARY DOCUMENT19 May 2009
  • Form 4PRIMARY DOCUMENT8 May 2009
  • Form 3PRIMARY DOCUMENT6 Nov 2008

Imsdahl Bruce T(7)

  • Form 4PRIMARY DOCUMENT19 Feb 2008
  • Form 4PRIMARY DOCUMENT20 Feb 2007
  • Form 4PRIMARY DOCUMENT21 Feb 2006
  • Form 4PRIMARY DOCUMENT3 Feb 2006
  • Form 4PRIMARY DOCUMENT22 Feb 2005
  • Form 4PRIMARY DOCUMENT30 Nov 2004
  • Form 3PRIMARY DOCUMENT24 Nov 2004

Kuntz Daniel S(7)

  • Form 4Statement of changes in beneficial ownership18 Feb 2020
  • Form 4PRIMARY DOCUMENT19 Feb 2019
  • Form 4PRIMARY DOCUMENT20 Feb 2018
  • Form 4PRIMARY DOCUMENT21 Feb 2017
  • Form 4PRIMARY DOCUMENT16 Feb 2016
  • Form 3/APRIMARY DOCUMENT5 May 2016
  • Form 3PRIMARY DOCUMENT13 Jan 2016

Wang Chenxi(7)

  • Form 4Statement of changes in beneficial ownership19 Nov 2024
  • Form 4Statement of changes in beneficial ownership17 Nov 2023
  • Form 4Statement of changes in beneficial ownership22 Nov 2022
  • Form 4Statement of changes in beneficial ownership17 Nov 2021
  • Form 4Statement of changes in beneficial ownership18 Nov 2020
  • Form 4Statement of changes in beneficial ownership20 Nov 2019
  • Form 3PRIMARY DOCUMENT8 May 2019

WELDER SISTER THOMAS(6)

  • Form 4PRIMARY DOCUMENT20 May 2009
  • Form 4PRIMARY DOCUMENT30 Apr 2008
  • Form 4PRIMARY DOCUMENT30 Apr 2007
  • Form 4PRIMARY DOCUMENT1 May 2006
  • Form 4PRIMARY DOCUMENT3 May 2005
  • Form 4PRIMARY DOCUMENT6 May 2004

CHRISTOPHERSON CATHLEEN M(6)

  • Form 4PRIMARY DOCUMENT1 Jun 2005
  • Form 4PRIMARY DOCUMENT2 Mar 2005
  • Form 4PRIMARY DOCUMENT22 Feb 2005
  • Form 4PRIMARY DOCUMENT29 Nov 2004
  • Form 4PRIMARY DOCUMENT2 Mar 2004
  • Form 4PRIMARY DOCUMENT17 Feb 2004

Del Vecchio Mark A(6)

  • Form 4PRIMARY DOCUMENT18 Feb 2014
  • Form 4PRIMARY DOCUMENT16 Feb 2010
  • Form 4PRIMARY DOCUMENT17 Feb 2009
  • Form 4PRIMARY DOCUMENT19 Feb 2008
  • Form 3PRIMARY DOCUMENT4 Oct 2007
  • Form 3/APRIMARY DOCUMENT11 Dec 2008

Haider Dennis L(6)

  • Form 5PRIMARY DOCUMENT19 Jan 2018
  • Form 4PRIMARY DOCUMENT21 Feb 2017
  • Form 4PRIMARY DOCUMENT16 Feb 2016
  • Form 4PRIMARY DOCUMENT18 Feb 2014
  • Form 3PRIMARY DOCUMENT5 Jun 2013
  • Form 3/APRIMARY DOCUMENT7 Aug 2013

Johnson Rob L.(6)

  • Form 4Statement of changes in beneficial ownership19 Feb
  • Form 4Statement of changes in beneficial ownership14 Feb 2025
  • Form 4Statement of changes in beneficial ownership8 May 2024
  • Form 4Statement of changes in beneficial ownership16 Feb 2024
  • Form 4Statement of changes in beneficial ownership12 Jul 2023
  • Form 3Initial statement of beneficial ownership1 Jun 2023

MDU RESOURCES GROUP INC(5)

  • Form 4Statement of changes in beneficial ownership1 Nov 2024
  • Form 3Initial statement of beneficial ownership17 Oct 2024
  • Form 4Statement of changes in beneficial ownership13 Nov 2023
  • Form 4Statement of changes in beneficial ownership2 Jun 2023
  • Form 3Initial statement of beneficial ownership10 May 2023

ANDERSON DARREL T(5)

  • Form 4Statement of changes in beneficial ownership13 Nov
  • Form 4Statement of changes in beneficial ownership14 Nov 2025
  • Form 4Statement of changes in beneficial ownership19 Nov 2024
  • Form 4Statement of changes in beneficial ownership17 Nov 2023
  • Form 3Initial statement of beneficial ownership17 Nov 2023

REDDING CINDY C(5)

  • Form 4PRIMARY DOCUMENT20 Feb 2007
  • Form 4PRIMARY DOCUMENT21 Feb 2006
  • Form 4PRIMARY DOCUMENT22 Feb 2005
  • Form 4PRIMARY DOCUMENT24 Nov 2003
  • Form 3PRIMARY DOCUMENT11 Jul 2003

Mahowald Douglass A(5)

  • Form 4PRIMARY DOCUMENT24 Feb 2014
  • Form 4PRIMARY DOCUMENT21 Feb 2014
  • Form 4PRIMARY DOCUMENT18 Feb 2014
  • Form 4PRIMARY DOCUMENT1 Dec 2010
  • Form 3PRIMARY DOCUMENT23 Feb 2010

Rosenthal Dale(5)

  • Form 4Statement of changes in beneficial ownership13 Mar 2024
  • Form 4Statement of changes in beneficial ownership17 Nov 2023
  • Form 4Statement of changes in beneficial ownership22 Nov 2022
  • Form 4Statement of changes in beneficial ownership17 Nov 2021
  • Form 3Initial statement of beneficial ownership17 May 2021

SPLICHAL DARYL A(4)

  • Form 4PRIMARY DOCUMENT21 Feb 2006
  • Form 4PRIMARY DOCUMENT22 Feb 2005
  • Form 4PRIMARY DOCUMENT17 Feb 2004
  • Form 3PRIMARY DOCUMENT9 Jan 2004

KELLEY CHARLES M(4)

  • Form 4Statement of changes in beneficial ownership13 Nov
  • Form 4Statement of changes in beneficial ownership17 Feb
  • Form 4Statement of changes in beneficial ownership14 Nov 2025
  • Form 3Initial statement of beneficial ownership14 Aug 2025

Liepitz Karl A(4)

  • Form 4Statement of changes in beneficial ownership1 Jun 2023
  • Form 4Statement of changes in beneficial ownership21 Feb 2023
  • Form 4Statement of changes in beneficial ownership28 Feb 2022
  • Form 3Initial statement of beneficial ownership8 Feb 2021

Senger Garret(4)

  • Form 4Statement of changes in beneficial ownership19 Feb
  • Form 4Statement of changes in beneficial ownership14 Feb 2025
  • Form 4Statement of changes in beneficial ownership16 Feb 2024
  • Form 3Initial statement of beneficial ownership9 Jan 2024

Jaeger Douglas W.(4)

  • Form 4Statement of changes in beneficial ownership13 Nov
  • Form 4Statement of changes in beneficial ownership14 Nov 2025
  • Form 4Statement of changes in beneficial ownership19 Nov 2024
  • Form 3Initial statement of beneficial ownership16 May 2024

Boese Dyke A.(4)

  • Form 4Statement of changes in beneficial ownership19 Feb
  • Form 4Statement of changes in beneficial ownership16 Jul 2025
  • Form 4Statement of changes in beneficial ownership14 Feb 2025
  • Form 3Initial statement of beneficial ownership14 Jan 2025

ALBERTSON BRUCE R(3)

  • Form 4PRIMARY DOCUMENT4 Jan 2005
  • Form 4PRIMARY DOCUMENT6 May 2004
  • Form 4PRIMARY DOCUMENT2 Jan 2004

SCOTT HOMER A JR(3)

  • Form 4PRIMARY DOCUMENT4 Jan 2005
  • Form 4PRIMARY DOCUMENT6 May 2004
  • Form 4PRIMARY DOCUMENT5 Jan 2004

TIPTON RONALD D(3)

  • Form 4PRIMARY DOCUMENT17 Aug 2004
  • Form 4PRIMARY DOCUMENT17 Feb 2004
  • Form 4PRIMARY DOCUMENT22 Aug 2003

Gatzemeier Paul(3)

  • Form 4PRIMARY DOCUMENT21 Feb 2006
  • Form 4PRIMARY DOCUMENT22 Feb 2005
  • Form 3PRIMARY DOCUMENT21 Sep 2004

WELLS JAMES KENT(3)

  • Form 4PRIMARY DOCUMENT25 May 2012
  • Form 4PRIMARY DOCUMENT21 Feb 2012
  • Form 3PRIMARY DOCUMENT4 May 2011

Morehouse Kenneth Frank(3)

  • Form 4PRIMARY DOCUMENT13 May 2014
  • Form 4PRIMARY DOCUMENT18 Feb 2014
  • Form 3PRIMARY DOCUMENT8 Jan 2013

Foti Anthony Donald(3)

  • Form 4Statement of changes in beneficial ownership19 Feb
  • Form 4Statement of changes in beneficial ownership14 Feb 2025
  • Form 3Initial statement of beneficial ownership9 Oct 2024

Sanderson Paul R.(3)

  • Form 4Statement of changes in beneficial ownership16 Feb 2024
  • Form 4Statement of changes in beneficial ownership12 Jul 2023
  • Form 3Initial statement of beneficial ownership1 Jun 2023

Miller Tammy J(3)

  • Form 4Statement of changes in beneficial ownership13 Nov
  • Form 4Statement of changes in beneficial ownership14 Nov 2025
  • Form 3Initial statement of beneficial ownership14 Aug 2025

Patel Priti Rashmikant(3)

  • Form 4Statement of changes in beneficial ownership13 Nov
  • Form 4Statement of changes in beneficial ownership14 Nov 2025
  • Form 3Initial statement of beneficial ownership19 May 2025

WILSON FLOYD E(2)

  • Form 4PRIMARY DOCUMENT22 Feb 2005
  • Form 4PRIMARY DOCUMENT17 Feb 2004

Ring Nathan W(2)

  • Form 4PRIMARY DOCUMENT8 May 2014
  • Form 3PRIMARY DOCUMENT8 Jan 2014

Carmona-Alvarez German(2)

  • Form 4Statement of changes in beneficial ownership22 Nov 2022
  • Form 3Initial statement of beneficial ownership21 Nov 2022

Gemmel James H.(2)

  • Form 4Statement of changes in beneficial ownership17 Nov 2023
  • Form 3Initial statement of beneficial ownership12 May 2023

LOBLE LESTER H II(1)

  • Form 4PRIMARY DOCUMENT28 Aug 2003

Moylan Daniel B(1)

  • Form 3PRIMARY DOCUMENT10 Jan 2006

FRITZ MARTIN A(1)

  • Form 3PRIMARY DOCUMENT27 Jul 2015

O'Bryan Patrick L(1)

  • Form 3PRIMARY DOCUMENT3 Mar 2015

DELLA ROCCA MICHAEL(1)

  • Form 3Initial statement of beneficial ownership21 Aug 2024

Gray Brian R.(1)

  • Form 3Initial statement of beneficial ownership3 Mar 2023

≥5% Ownership

VANGUARD GROUP INC(16)

  • SC 13G/AMdu Resources Group Inc27 Mar
  • SC 13G/AMdu Resources Group Inc30 Jan 2025
  • SC 13G/AMdu Resources Group Inc13 Feb 2024
  • SC 13G/AMdu Resources Group Inc9 Feb 2023
  • SC 13G/AMdu Resources Group Inc9 Feb 2022
  • SC 13G/AMdu Resources Group Inc10 Feb 2021
  • SC 13G/AMdu Resources Group Inc12 Feb 2020
  • SC 13G/AMdu Resources Group Inc11 Feb 2019
  • SC 13G/AMdu Resources Group Inc9 Feb 2018
  • SC 13G/AMdu Resources Group Inc10 Feb 2017

BlackRock Inc.(16)

  • SC 13G/AMdu Resources Group Inc24 Jan 2024
  • SC 13GMdu Resources Group Inc24 Jan 2023
  • SC 13G/AMdu Resources Group Inc1 Feb 2022
  • SC 13G/AMdu Resources Group Inc29 Jan 2021
  • SC 13G/AMdu Resources Group Inc4 Feb 2020
  • SC 13G/AMdu Resources Group Inc7 Jun 2019
  • SC 13G/AMdu Resources Group Inc6 Feb 2019
  • SC 13G/AMdu Resources Group Inc25 Jan 2018
  • SC 13G/AMdu Resources Group Inc25 Jan 2017
  • SC 13G/AMdu Resources Group Inc26 Jan 2016

NEW YORK LIFE TRUST CO(15)

  • SC 13G/AMdu Resources Group Inc14 Feb 2013
  • SC 13G/AMdu Resources Group Inc14 Feb 2012
  • SC 13G/AMdu Resources Group Inc11 Feb 2011
  • SC 13G/AMdu Resources Group Inc12 Feb 2010
  • SC 13G/AMdu Resources Group Inc13 Feb 2009
  • SC 13G/AMdu Resources Group Inc14 Feb 2008
  • SC 13G/AMdu Resources Group Inc15 Feb 2007
  • SC 13G/AMdu Resources Group Inc13 Feb 2006
  • SC 13G/AMdu Resources Group Inc15 Feb 2005
  • SC 13G/AMdu Resources Group Inc18 Feb 2004

STATE STREET CORP(12)

  • SC 13G/AMdu Resources Group Inc23 Jan 2024
  • SC 13G/AMdu Resources Group Inc10 Feb 2023
  • SC 13G/AMdu Resources Group Inc11 Feb 2022
  • SC 13GMdu Resources Group Inc9 Feb 2021
  • SC 13GMdu Resources Group Inc14 Feb 2020
  • SC 13GMdu Resources Group Inc14 Feb 2019
  • SC 13GMdu Resources Group Inc14 Feb 2018
  • SC 13GMdu Resources Group Inc9 Feb 2017
  • SC 13GMdu Resources Group Inc16 Feb 2016
  • SC 13GMdu Resources Group Inc12 Feb 2015

Corvex Management LP(7)

  • SC 13D/AMdu Resources Group Inc1 Nov 2024
  • SC 13D/AMdu Resources Group Inc18 Mar 2024
  • SC 13D/AMdu Resources Group Inc12 May 2023
  • SC 13D/AMdu Resources Group Inc24 Apr 2023
  • SC 13D/AMdu Resources Group Inc24 Jan 2023
  • SC 13D/AMdu Resources Group Inc3 Nov 2022
  • SC 13DMdu Resources Group Inc8 Aug 2022

PARNASSUS INVESTMENTS /CA(5)

  • SC 13G/AMdu Resources Group Inc13 Feb 2019
  • SC 13G/AMdu Resources Group Inc12 Feb 2018
  • SC 13G/AMdu Resources Group Inc14 Feb 2017
  • SC 13G/AMdu Resources Group Inc12 Feb 2016
  • SC 13GMdu Resources Group Inc12 Feb 2015

BARROW HANLEY MEWHINNEY & STRAUSS LLC(4)

  • SC 13GMdu Resources Group Inc12 Nov
  • SC 13GMdu Resources Group Inc12 Aug
  • SC 13GMdu Resources Group Inc13 May
  • SC 13GMdu Resources Group Inc11 Feb

PRICE T ROWE ASSOCIATES INC /MD/(3)

  • SC 13G/AMdu Resources Group Inc12 Feb 2014
  • SC 13G/AMdu Resources Group Inc7 Feb 2013
  • SC 13GMdu Resources Group Inc14 Feb 2012

DIMENSIONAL FUND ADVISORS LP(3)

  • SC 13GMdu Resources Group Inc8 Oct
  • SC 13G/AMdu Resources Group Inc14 Jul
  • SC 13GMdu Resources Group Inc9 Apr

MORSE J FRANKLIN(2)

  • SC 13G/AMdu Resources Group Inc29 Apr 1998
  • SC 13GMdu Resources Group Inc13 Mar 1998

BARCLAYS GLOBAL INVESTORS NA /CA/(1)

  • SC 13GMdu Resources Group Inc5 Feb 2009

BlackRock, Inc.(1)

  • SC 13G/AMdu Resources Group Inc7 Nov 2024

VANGUARD CAPITAL MANAGEMENT LLC(1)

  • SC 13GMdu Resources Group Inc30 Apr

VANGUARD PORTFOLIO MANAGEMENT LLC(1)

  • SC 13GMdu Resources Group Inc29 Apr