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Lam Research Corporation(LRCX US)

$230.10-0.050.02%Ext:$229.37-0.730.32%(Market Closed · 00:00:00 UTC)

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LRCX US​

SEC Filings by Owner

Insider Ownership

ARCHER TIMOTHY(124)

  • 4Statement of changes in beneficial ownership10 Sep
  • 4Statement of changes in beneficial ownership7 Aug
  • 4Statement of changes in beneficial ownership6 Jul
  • 4Statement of changes in beneficial ownership2 Mar
  • 4Statement of changes in beneficial ownership25 Feb
  • 4Statement of changes in beneficial ownership5 Feb
  • 4Statement of changes in beneficial ownership18 Dec 2025
  • 4Statement of changes in beneficial ownership4 Mar 2025
  • 4Statement of changes in beneficial ownership6 Feb 2025
  • 4Statement of changes in beneficial ownership2 Jul 2024

Bettinger Douglas R(96)

  • 4Statement of changes in beneficial ownership5 Mar
  • 4Statement of changes in beneficial ownership3 Mar
  • 4Statement of changes in beneficial ownership2 Mar
  • 4Statement of changes in beneficial ownership5 Feb
  • 4Statement of changes in beneficial ownership17 Nov 2025
  • 4Statement of changes in beneficial ownership4 Mar 2025
  • 4Statement of changes in beneficial ownership6 Feb 2025
  • 4Statement of changes in beneficial ownership5 Mar 2024
  • 4Statement of changes in beneficial ownership8 Feb 2024
  • 4Statement of changes in beneficial ownership8 Aug 2023

BAGLEY JAMES W(79)

  • 4PRIMARY DOCUMENT5 Nov 2012
  • 4PRIMARY DOCUMENT9 Mar 2011
  • 4PRIMARY DOCUMENT12 Nov 2008
  • 4PRIMARY DOCUMENT22 Sep 2008
  • 4PRIMARY DOCUMENT7 Apr 2006
  • 4PRIMARY DOCUMENT16 Mar 2006
  • 4PRIMARY DOCUMENT10 Feb 2006
  • 4PRIMARY DOCUMENT31 Jan 2006
  • 4PRIMARY DOCUMENT26 Jan 2006
  • 4PRIMARY DOCUMENT23 Jan 2006

Gottscho Richard A(71)

  • 4Statement of changes in beneficial ownership2 Mar 2023
  • 4Statement of changes in beneficial ownership9 Feb 2023
  • 4Statement of changes in beneficial ownership22 Dec 2022
  • 4Statement of changes in beneficial ownership4 Mar 2022
  • 4Statement of changes in beneficial ownership3 Mar 2022
  • 4Statement of changes in beneficial ownership9 Feb 2022
  • 4Statement of changes in beneficial ownership4 Mar 2021
  • 4Statement of changes in beneficial ownership3 Mar 2021
  • 4Statement of changes in beneficial ownership5 Feb 2021
  • 4Statement of changes in beneficial ownership6 Aug 2020

NEWBERRY STEPHEN G(64)

  • 4Statement of changes in beneficial ownership13 Nov 2018
  • 4Statement of changes in beneficial ownership13 Nov 2017
  • 4Statement of changes in beneficial ownership19 Oct 2017
  • 4Statement of changes in beneficial ownership18 Oct 2017
  • 4Statement of changes in beneficial ownership16 Oct 2017
  • 4Statement of changes in beneficial ownership2 Oct 2017
  • 4Statement of changes in beneficial ownership28 Sep 2017
  • 4Statement of changes in beneficial ownership20 Sep 2017
  • 4Statement of changes in beneficial ownership13 Sep 2017
  • 4Statement of changes in beneficial ownership21 Jul 2017

Anstice Martin B(53)

  • 4Statement of changes in beneficial ownership23 May 2018
  • 4Statement of changes in beneficial ownership22 Mar 2018
  • 4Statement of changes in beneficial ownership5 Mar 2018
  • 4Statement of changes in beneficial ownership13 Feb 2018
  • 4Statement of changes in beneficial ownership29 Nov 2017
  • 4Statement of changes in beneficial ownership22 Nov 2017
  • 4Statement of changes in beneficial ownership21 Nov 2017
  • 4Statement of changes in beneficial ownership14 Mar 2017
  • 4Statement of changes in beneficial ownership2 Mar 2017
  • 4Statement of changes in beneficial ownership28 Feb 2017

O'Dowd Sarah A(52)

  • 4Statement of changes in beneficial ownership23 Dec 2019
  • 4Statement of changes in beneficial ownership13 Sep 2019
  • 4Statement of changes in beneficial ownership9 Sep 2019
  • 4Statement of changes in beneficial ownership5 Mar 2019
  • 4Statement of changes in beneficial ownership13 Feb 2019
  • 4Statement of changes in beneficial ownership23 Mar 2018
  • 4Statement of changes in beneficial ownership9 Mar 2018
  • 4Statement of changes in beneficial ownership5 Mar 2018
  • 4Statement of changes in beneficial ownership13 Feb 2018
  • 4Statement of changes in beneficial ownership23 Jun 2017

LORD PATRICK J(41)

  • 4Statement of changes in beneficial ownership2 Mar
  • 4Statement of changes in beneficial ownership5 Feb
  • 4Statement of changes in beneficial ownership4 Mar 2025
  • 4Statement of changes in beneficial ownership6 Feb 2025
  • 4Statement of changes in beneficial ownership30 Apr 2024
  • 4Statement of changes in beneficial ownership13 Mar 2024
  • 4Statement of changes in beneficial ownership13 Mar 2024
  • 4Statement of changes in beneficial ownership5 Mar 2024
  • 4Statement of changes in beneficial ownership8 Feb 2024
  • 4Statement of changes in beneficial ownership15 Dec 2023

TALWALKAR ABHIJIT Y(31)

  • 4Statement of changes in beneficial ownership14 Jul
  • 4Statement of changes in beneficial ownership11 Mar
  • 4Statement of changes in beneficial ownership10 Nov 2025
  • 4Statement of changes in beneficial ownership12 Nov 2024
  • 4Statement of changes in beneficial ownership2 Apr 2024
  • 4Statement of changes in beneficial ownership1 Feb 2024
  • 4Statement of changes in beneficial ownership3 Jan 2024
  • 4Statement of changes in beneficial ownership13 Nov 2023
  • 4Statement of changes in beneficial ownership3 Oct 2023
  • 4Statement of changes in beneficial ownership5 Jul 2023

Heckart Christine(31)

  • 4Statement of changes in beneficial ownership4 Feb 2019
  • 4Statement of changes in beneficial ownership13 Nov 2018
  • 4Statement of changes in beneficial ownership13 Nov 2017
  • 4Statement of changes in beneficial ownership5 Dec 2016
  • 4Statement of changes in beneficial ownership30 Nov 2016
  • 4Statement of changes in beneficial ownership15 Nov 2016
  • 4PRIMARY DOCUMENT10 Nov 2015
  • 4PRIMARY DOCUMENT4 Dec 2014
  • 4PRIMARY DOCUMENT12 Nov 2014
  • 4/APRIMARY DOCUMENT12 Nov 2014

Varadarajan Seshasayee(31)

  • 4Statement of changes in beneficial ownership3 Sep
  • 4Statement of changes in beneficial ownership2 Mar
  • 4Statement of changes in beneficial ownership5 Feb
  • 4Statement of changes in beneficial ownership4 Mar 2025
  • 4Statement of changes in beneficial ownership21 Feb 2025
  • 4Statement of changes in beneficial ownership6 Feb 2025
  • 4Statement of changes in beneficial ownership1 Oct 2024
  • 4Statement of changes in beneficial ownership20 Mar 2024
  • 4Statement of changes in beneficial ownership5 Mar 2024
  • 4Statement of changes in beneficial ownership8 Feb 2024

Vahedi Vahid(28)

  • 4Statement of changes in beneficial ownership2 Mar
  • 4Statement of changes in beneficial ownership5 Feb
  • 4Statement of changes in beneficial ownership14 Oct 2025
  • 4Statement of changes in beneficial ownership4 Mar 2025
  • 4Statement of changes in beneficial ownership6 Feb 2025
  • 4Statement of changes in beneficial ownership5 Mar 2024
  • 4Statement of changes in beneficial ownership8 Feb 2024
  • 4Statement of changes in beneficial ownership2 Aug 2023
  • 4Statement of changes in beneficial ownership1 Mar 2023
  • 4Statement of changes in beneficial ownership9 Feb 2023

Meikle Scott Gerald(24)

  • 4Statement of changes in beneficial ownership2 Mar 2023
  • 4Statement of changes in beneficial ownership9 Feb 2023
  • 4Statement of changes in beneficial ownership2 Jun 2022
  • 4Statement of changes in beneficial ownership5 Apr 2022
  • 4Statement of changes in beneficial ownership3 Mar 2022
  • 4Statement of changes in beneficial ownership9 Feb 2022
  • 4Statement of changes in beneficial ownership2 Feb 2022
  • 4Statement of changes in beneficial ownership16 Dec 2021
  • 4Statement of changes in beneficial ownership16 Sep 2021
  • 4Statement of changes in beneficial ownership16 Jun 2021

BRANDT ERIC(23)

  • 4Statement of changes in beneficial ownership15 Jun
  • 4Statement of changes in beneficial ownership15 Jun
  • 4Statement of changes in beneficial ownership9 Feb
  • 4Statement of changes in beneficial ownership10 Nov 2025
  • 4Statement of changes in beneficial ownership12 Nov 2024
  • 4Statement of changes in beneficial ownership20 Nov 2023
  • 4Statement of changes in beneficial ownership13 Nov 2023
  • 4Statement of changes in beneficial ownership14 Nov 2022
  • 4Statement of changes in beneficial ownership16 Nov 2021
  • 4Statement of changes in beneficial ownership10 Nov 2020

MADDOCK ERNEST E(23)

  • 4PRIMARY DOCUMENT6 Mar 2013
  • 4PRIMARY DOCUMENT7 Feb 2013
  • 4PRIMARY DOCUMENT30 Jan 2013
  • 4PRIMARY DOCUMENT9 Feb 2012
  • 4PRIMARY DOCUMENT8 Feb 2012
  • 4PRIMARY DOCUMENT7 Feb 2012
  • 4PRIMARY DOCUMENT8 Mar 2011
  • 4PRIMARY DOCUMENT4 Mar 2011
  • 4PRIMARY DOCUMENT1 Mar 2011
  • 4PRIMARY DOCUMENT8 Dec 2010

INMAN GRANT M(22)

  • 4PRIMARY DOCUMENT12 Nov 2014
  • 4PRIMARY DOCUMENT12 Nov 2013
  • 4PRIMARY DOCUMENT30 Jan 2013
  • 4PRIMARY DOCUMENT7 Feb 2012
  • 4PRIMARY DOCUMENT8 Mar 2011
  • 4PRIMARY DOCUMENT2 Feb 2011
  • 4PRIMARY DOCUMENT27 Oct 2010
  • 4PRIMARY DOCUMENT3 Feb 2010
  • 4PRIMARY DOCUMENT3 Dec 2009
  • 4PRIMARY DOCUMENT13 Feb 2009

BRIGHT NICOLAS J(22)

  • 4PRIMARY DOCUMENT5 May 2006
  • 4PRIMARY DOCUMENT20 Apr 2006
  • 4PRIMARY DOCUMENT8 Feb 2006
  • 4PRIMARY DOCUMENT1 Feb 2006
  • 4PRIMARY DOCUMENT26 Jan 2006
  • 4PRIMARY DOCUMENT1 Dec 2005
  • 4PRIMARY DOCUMENT16 Nov 2005
  • 4PRIMARY DOCUMENT14 Nov 2005
  • 4PRIMARY DOCUMENT7 Nov 2005
  • 4PRIMARY DOCUMENT24 Oct 2005

BERDAHL ROBERT M(21)

  • 4PRIMARY DOCUMENT5 Nov 2012
  • 4PRIMARY DOCUMENT7 Feb 2012
  • 4PRIMARY DOCUMENT14 Feb 2011
  • 4PRIMARY DOCUMENT2 Feb 2011
  • 4PRIMARY DOCUMENT27 Oct 2010
  • 4PRIMARY DOCUMENT3 Feb 2010
  • 4PRIMARY DOCUMENT15 Dec 2009
  • 4PRIMARY DOCUMENT15 Dec 2009
  • 4PRIMARY DOCUMENT3 Feb 2009
  • 4PRIMARY DOCUMENT12 Nov 2008

Lego Catherine P(20)

  • 4Statement of changes in beneficial ownership27 Apr 2022
  • 4Statement of changes in beneficial ownership16 Nov 2021
  • 4Statement of changes in beneficial ownership10 Nov 2020
  • 4Statement of changes in beneficial ownership12 Nov 2019
  • 4Statement of changes in beneficial ownership13 Nov 2018
  • 4Statement of changes in beneficial ownership13 Nov 2017
  • 4Statement of changes in beneficial ownership15 Nov 2016
  • 4PRIMARY DOCUMENT10 Nov 2015
  • 4PRIMARY DOCUMENT12 Nov 2014
  • 4PRIMARY DOCUMENT12 Nov 2013

CANNON MICHAEL R(18)

  • 4Statement of changes in beneficial ownership10 Nov 2025
  • 4Statement of changes in beneficial ownership12 Nov 2024
  • 4Statement of changes in beneficial ownership13 Nov 2023
  • 4Statement of changes in beneficial ownership14 Nov 2022
  • 4Statement of changes in beneficial ownership16 Nov 2021
  • 4Statement of changes in beneficial ownership10 Nov 2020
  • 4Statement of changes in beneficial ownership12 Nov 2019
  • 4Statement of changes in beneficial ownership13 Nov 2018
  • 4Statement of changes in beneficial ownership17 Nov 2017
  • 4Statement of changes in beneficial ownership13 Nov 2017

ARSCOTT DAVID G(18)

  • 4PRIMARY DOCUMENT2 Feb 2011
  • 4PRIMARY DOCUMENT8 Nov 2010
  • 5PRIMARY DOCUMENT11 Aug 2010
  • 4PRIMARY DOCUMENT3 Feb 2010
  • 4PRIMARY DOCUMENT2 Dec 2009
  • 4PRIMARY DOCUMENT3 Feb 2009
  • 4PRIMARY DOCUMENT12 Nov 2008
  • 4PRIMARY DOCUMENT5 May 2008
  • 4PRIMARY DOCUMENT20 Feb 2007
  • 4PRIMARY DOCUMENT2 Feb 2007

ELKUS RICHARD J JR(15)

  • 4PRIMARY DOCUMENT15 Mar 2010
  • 4PRIMARY DOCUMENT3 Feb 2010
  • 4PRIMARY DOCUMENT2 Dec 2009
  • 4PRIMARY DOCUMENT1 Jun 2009
  • 4PRIMARY DOCUMENT6 May 2009
  • 4PRIMARY DOCUMENT3 Feb 2009
  • 4PRIMARY DOCUMENT12 Nov 2008
  • 4PRIMARY DOCUMENT5 May 2008
  • 4PRIMARY DOCUMENT3 Oct 2007
  • 4PRIMARY DOCUMENT20 Feb 2007

EL MANSY YOUSSEF A(15)

  • 5Annual statement of beneficial ownership12 Aug 2020
  • 4Statement of changes in beneficial ownership10 Feb 2020
  • 4Statement of changes in beneficial ownership6 Feb 2020
  • 4Statement of changes in beneficial ownership12 Nov 2019
  • 4Statement of changes in beneficial ownership13 Nov 2018
  • 4Statement of changes in beneficial ownership14 Aug 2018
  • 4Statement of changes in beneficial ownership13 Nov 2017
  • 4Statement of changes in beneficial ownership12 Dec 2016
  • 4Statement of changes in beneficial ownership15 Nov 2016
  • 4PRIMARY DOCUMENT10 Nov 2015

Mayer Bethany(14)

  • 4Statement of changes in beneficial ownership10 Sep
  • 4Statement of changes in beneficial ownership10 Nov 2025
  • 4Statement of changes in beneficial ownership4 Nov 2025
  • 4Statement of changes in beneficial ownership12 Nov 2024
  • 4/AStatement of changes in beneficial ownership (amendment)21 Jan 2025
  • 4Statement of changes in beneficial ownership7 Nov 2024
  • 4Statement of changes in beneficial ownership4 Nov 2024
  • 4Statement of changes in beneficial ownership13 Nov 2023
  • 4Statement of changes in beneficial ownership14 Nov 2022
  • 4Statement of changes in beneficial ownership16 Nov 2021

Ahmed Sohail U(14)

  • 4Statement of changes in beneficial ownership10 Nov 2025
  • 4Statement of changes in beneficial ownership12 Nov 2024
  • 4/AStatement of changes in beneficial ownership (amendment)21 Jan 2025
  • 4Statement of changes in beneficial ownership5 Nov 2024
  • 4Statement of changes in beneficial ownership13 Nov 2023
  • 4Statement of changes in beneficial ownership2 Nov 2023
  • 4Statement of changes in beneficial ownership14 Nov 2022
  • 4Statement of changes in beneficial ownership16 Nov 2021
  • 5Annual statement of beneficial ownership10 Aug 2021
  • 4Statement of changes in beneficial ownership10 Nov 2020

HARRIS JACK RAYMOND(13)

  • 4PRIMARY DOCUMENT3 Dec 2009
  • 4PRIMARY DOCUMENT3 Feb 2009
  • 4PRIMARY DOCUMENT12 Nov 2008
  • 4PRIMARY DOCUMENT5 May 2008
  • 4PRIMARY DOCUMENT20 Feb 2007
  • 4PRIMARY DOCUMENT2 Feb 2007
  • 4PRIMARY DOCUMENT17 Nov 2006
  • 4PRIMARY DOCUMENT18 Oct 2006
  • 4PRIMARY DOCUMENT2 Feb 2006
  • 4PRIMARY DOCUMENT1 Sep 2005

Srinivasan Mukund(13)

  • 4PRIMARY DOCUMENT9 Jan 2012
  • 4PRIMARY DOCUMENT4 Jan 2012
  • 4PRIMARY DOCUMENT3 Nov 2011
  • 4PRIMARY DOCUMENT5 Jul 2011
  • 4PRIMARY DOCUMENT28 Jun 2011
  • 4PRIMARY DOCUMENT2 May 2011
  • 4PRIMARY DOCUMENT29 Mar 2011
  • 4PRIMARY DOCUMENT9 Mar 2011
  • 4PRIMARY DOCUMENT8 Mar 2011
  • 4PRIMARY DOCUMENT3 Jan 2011

Fernandes Neil J(13)

  • 4Statement of changes in beneficial ownership2 Jun
  • 4Statement of changes in beneficial ownership4 May
  • 4Statement of changes in beneficial ownership2 Mar
  • 4Statement of changes in beneficial ownership5 Feb
  • 4Statement of changes in beneficial ownership4 Mar 2025
  • 4Statement of changes in beneficial ownership6 Feb 2025
  • 4Statement of changes in beneficial ownership15 Jul 2024
  • 4Statement of changes in beneficial ownership1 Jul 2024
  • 4Statement of changes in beneficial ownership5 Mar 2024
  • 4Statement of changes in beneficial ownership8 Feb 2024

Correia Christina(13)

  • 4Statement of changes in beneficial ownership2 Mar
  • 4Statement of changes in beneficial ownership5 Feb
  • 4Statement of changes in beneficial ownership4 Mar 2025
  • 4Statement of changes in beneficial ownership6 Feb 2025
  • 4Statement of changes in beneficial ownership2 Oct 2024
  • 4Statement of changes in beneficial ownership2 Jul 2024
  • 4Statement of changes in beneficial ownership2 Apr 2024
  • 4Statement of changes in beneficial ownership5 Mar 2024
  • 4Statement of changes in beneficial ownership8 Feb 2024
  • 4Statement of changes in beneficial ownership3 Jan 2024

Harter Ava(11)

  • 4Statement of changes in beneficial ownership1 Sep
  • 4Statement of changes in beneficial ownership6 Aug
  • 4Statement of changes in beneficial ownership28 Apr
  • 4Statement of changes in beneficial ownership5 Mar
  • 4Statement of changes in beneficial ownership3 Mar
  • 4Statement of changes in beneficial ownership2 Mar
  • 4Statement of changes in beneficial ownership28 Oct 2025
  • 4Statement of changes in beneficial ownership6 Aug 2025
  • 4Statement of changes in beneficial ownership4 Mar 2025
  • 4Statement of changes in beneficial ownership6 Aug 2024

LINDSAY STEVEN(10)

  • 4PRIMARY DOCUMENT17 Feb 2005
  • 4PRIMARY DOCUMENT10 Feb 2005
  • 4PRIMARY DOCUMENT7 Dec 2004
  • 4PRIMARY DOCUMENT19 Nov 2004
  • 4PRIMARY DOCUMENT3 Nov 2004
  • 4PRIMARY DOCUMENT28 Oct 2004
  • 4PRIMARY DOCUMENT3 Dec 2003
  • 4PRIMARY DOCUMENT30 Oct 2003
  • 4PRIMARY DOCUMENT28 Aug 2003
  • 4PRIMARY DOCUMENT26 Aug 2003

Hariri Abdi(10)

  • 4PRIMARY DOCUMENT2 Mar 2009
  • 4PRIMARY DOCUMENT26 Sep 2008
  • 4PRIMARY DOCUMENT5 May 2006
  • 4PRIMARY DOCUMENT1 Mar 2006
  • 4PRIMARY DOCUMENT23 Jan 2006
  • 4PRIMARY DOCUMENT7 Nov 2005
  • 4PRIMARY DOCUMENT19 Oct 2005
  • 4PRIMARY DOCUMENT7 Dec 2004
  • 4PRIMARY DOCUMENT12 Nov 2004
  • 3PRIMARY DOCUMENT12 Nov 2004

JENNINGS KEVIN(9)

  • 4Statement of changes in beneficial ownership14 Jul 2020
  • 4Statement of changes in beneficial ownership3 Mar 2020
  • 4Statement of changes in beneficial ownership21 Feb 2020
  • 4Statement of changes in beneficial ownership17 Dec 2019
  • 4Statement of changes in beneficial ownership25 Jul 2019
  • 4Statement of changes in beneficial ownership5 Mar 2019
  • 4Statement of changes in beneficial ownership13 Feb 2019
  • 4Statement of changes in beneficial ownership7 Feb 2019
  • 3Initial statement of beneficial ownership25 May 2018

Tsai Lih Shyng (Rick)(9)

  • 4Statement of changes in beneficial ownership13 Nov 2023
  • 4Statement of changes in beneficial ownership14 Nov 2022
  • 4Statement of changes in beneficial ownership16 Nov 2021
  • 4Statement of changes in beneficial ownership10 Nov 2020
  • 4Statement of changes in beneficial ownership12 Nov 2019
  • 4Statement of changes in beneficial ownership13 Nov 2018
  • 4Statement of changes in beneficial ownership13 Nov 2017
  • 4Statement of changes in beneficial ownership15 Nov 2016
  • 3Initial statement of beneficial ownership23 Sep 2016

Hahn Ava(8)

  • 4Statement of changes in beneficial ownership4 Jan 2024
  • 4Statement of changes in beneficial ownership1 Mar 2023
  • 4Statement of changes in beneficial ownership9 Feb 2023
  • 4Statement of changes in beneficial ownership3 Mar 2022
  • 4Statement of changes in beneficial ownership4 Mar 2021
  • 4Statement of changes in beneficial ownership3 Mar 2021
  • 4Statement of changes in beneficial ownership3 Mar 2020
  • 3Initial statement of beneficial ownership7 Jan 2020

Watanabe Seiichi(8)

  • 4PRIMARY DOCUMENT3 Feb 2009
  • 4PRIMARY DOCUMENT1 Aug 2008
  • 4PRIMARY DOCUMENT5 May 2008
  • 4PRIMARY DOCUMENT25 May 2007
  • 4PRIMARY DOCUMENT20 Feb 2007
  • 4PRIMARY DOCUMENT20 Feb 2007
  • 4PRIMARY DOCUMENT2 Feb 2006
  • 3PRIMARY DOCUMENT28 Feb 2005

Saraswat Krishna(8)

  • 4PRIMARY DOCUMENT10 Nov 2015
  • 4PRIMARY DOCUMENT12 Nov 2014
  • 4PRIMARY DOCUMENT15 Jan 2014
  • 4PRIMARY DOCUMENT12 Nov 2013
  • 4PRIMARY DOCUMENT16 Sep 2013
  • 4PRIMARY DOCUMENT30 Jan 2013
  • 4PRIMARY DOCUMENT6 Jun 2012
  • 3PRIMARY DOCUMENT6 Jun 2012

Kang Ho Kyu(8)

  • 4Statement of changes in beneficial ownership10 Nov 2025
  • 4Statement of changes in beneficial ownership3 Nov 2025
  • 4Statement of changes in beneficial ownership12 Nov 2024
  • 4Statement of changes in beneficial ownership1 Nov 2024
  • 4Statement of changes in beneficial ownership13 Nov 2023
  • 4Statement of changes in beneficial ownership1 Nov 2023
  • 4Statement of changes in beneficial ownership10 Feb 2023
  • 3Initial statement of beneficial ownership10 Feb 2023

VARON LESLIE F(7)

  • 4Statement of changes in beneficial ownership13 Nov 2023
  • 4Statement of changes in beneficial ownership14 Nov 2022
  • 4Statement of changes in beneficial ownership16 Nov 2021
  • 4Statement of changes in beneficial ownership10 Nov 2020
  • 4Statement of changes in beneficial ownership12 Nov 2019
  • 4Statement of changes in beneficial ownership4 Sep 2019
  • 3Initial statement of beneficial ownership14 May 2019

WOLPERT PATRICIA S(7)

  • 4PRIMARY DOCUMENT3 Feb 2010
  • 4PRIMARY DOCUMENT3 Feb 2009
  • 4PRIMARY DOCUMENT5 May 2008
  • 4PRIMARY DOCUMENT3 Oct 2007
  • 4PRIMARY DOCUMENT20 Feb 2007
  • 4PRIMARY DOCUMENT6 Dec 2006
  • 3PRIMARY DOCUMENT16 Aug 2006

Bondur Thomas J(7)

  • 4PRIMARY DOCUMENT16 Dec 2010
  • 4PRIMARY DOCUMENT9 Feb 2010
  • 4PRIMARY DOCUMENT2 Mar 2009
  • 4PRIMARY DOCUMENT3 Dec 2008
  • 4PRIMARY DOCUMENT5 Aug 2008
  • 4PRIMARY DOCUMENT26 Sep 2008
  • 3PRIMARY DOCUMENT12 Mar 2007

Mehra Jyoti(7)

  • 4Statement of changes in beneficial ownership10 Nov 2025
  • 4Statement of changes in beneficial ownership12 Nov 2024
  • 4Statement of changes in beneficial ownership13 Nov 2023
  • 4Statement of changes in beneficial ownership14 Nov 2022
  • 4Statement of changes in beneficial ownership16 Nov 2021
  • 3Initial statement of beneficial ownership16 Nov 2021
  • 3Initial statement of beneficial ownership16 Nov 2021

Morita Masayuki(6)

  • 4PRIMARY DOCUMENT3 Apr 2012
  • 4PRIMARY DOCUMENT3 Nov 2011
  • 4PRIMARY DOCUMENT5 Jul 2011
  • 4PRIMARY DOCUMENT2 May 2011
  • 4PRIMARY DOCUMENT8 Mar 2011
  • 3PRIMARY DOCUMENT11 Jan 2011

SPIVEY WILLIAM(5)

  • 4PRIMARY DOCUMENT12 Nov 2014
  • 4PRIMARY DOCUMENT12 Nov 2013
  • 4PRIMARY DOCUMENT30 Jan 2013
  • 4PRIMARY DOCUMENT6 Jun 2012
  • 3PRIMARY DOCUMENT12 Jun 2012

Perdikou Kim(4)

  • 4PRIMARY DOCUMENT5 Nov 2012
  • 4PRIMARY DOCUMENT7 Feb 2012
  • 4PRIMARY DOCUMENT19 May 2011
  • 3PRIMARY DOCUMENT28 Feb 2011

Marks Jeffrey(4)

  • 4PRIMARY DOCUMENT27 Aug 2010
  • 4PRIMARY DOCUMENT9 Feb 2010
  • 4PRIMARY DOCUMENT3 Dec 2009
  • 3PRIMARY DOCUMENT16 Nov 2009

Dineen John M.(4)

  • 4Statement of changes in beneficial ownership10 Nov 2025
  • 4Statement of changes in beneficial ownership12 Nov 2024
  • 4Statement of changes in beneficial ownership13 Nov 2023
  • 3Initial statement of beneficial ownership25 Aug 2023

Schisler George M(4)

  • 4Statement of changes in beneficial ownership6 May 2024
  • 4Statement of changes in beneficial ownership5 Mar 2024
  • 4Statement of changes in beneficial ownership8 Feb 2024
  • 3Initial statement of beneficial ownership19 Jan 2024

WHITAKER DELBERT(3)

  • 4PRIMARY DOCUMENT5 Nov 2012
  • 3PRIMARY DOCUMENT6 Jun 2012
  • 4PRIMARY DOCUMENT6 Jun 2012

FIELDS MARK(3)

  • 4Statement of changes in beneficial ownership10 Nov 2025
  • 4Statement of changes in beneficial ownership12 Nov 2024
  • 3Initial statement of beneficial ownership5 Sep 2024

Brennan Ita M(3)

  • 4Statement of changes in beneficial ownership10 Nov 2025
  • 4Statement of changes in beneficial ownership12 Nov 2024
  • 3Initial statement of beneficial ownership5 Sep 2024

DEVGAN ANIRUDH(3)

  • 4Statement of changes in beneficial ownership9 Feb
  • 3Initial statement of beneficial ownership5 Feb
  • 3/AInitial statement of beneficial ownership (amendment)9 Feb

JOHNSON MERCEDES(2)

  • 4PRIMARY DOCUMENT13 Nov 2003
  • 4PRIMARY DOCUMENT29 Aug 2003

Koh Young Bum(2)

  • 4Statement of changes in beneficial ownership13 Nov 2017
  • 3Initial statement of beneficial ownership16 May 2017

Lanza Stephen(1)

  • 3PRIMARY DOCUMENT8 Oct 2008

Rammohan Karthikeyan(1)

  • 3Initial statement of beneficial ownership10 Mar

≥5% Ownership

FMR LLC(27)

  • SC 13G/ALam Research Corp9 Feb 2022
  • SC 13G/ALam Research Corp8 Feb 2021
  • SC 13GLam Research Corp7 Feb 2020
  • SC 13G/ALam Research Corp13 Feb 2018
  • SC 13GLam Research Corp14 Feb 2017
  • SC 13G/ALam Research Corp12 Sep 2011
  • SC 13G/ALam Research Corp10 Mar 2011
  • SC 13G/ALam Research Corp14 Feb 2011
  • SC 13G/ALam Research Corp16 Feb 2010
  • SC 13G/ALam Research Corp17 Feb 2009

BlackRock Inc.(17)

  • SC 13G/ALam Research Corp25 Jan 2024
  • SC 13G/ALam Research Corp3 Feb 2023
  • SC 13G/ALam Research Corp1 Feb 2022
  • SC 13G/ALam Research Corp29 Jan 2021
  • SC 13G/ALam Research Corp5 Feb 2020
  • SC 13G/ALam Research Corp6 Feb 2019
  • SC 13GLam Research Corp8 Feb 2018
  • SC 13G/ALam Research Corp25 Jan 2017
  • SC 13G/ALam Research Corp10 Feb 2016
  • SC 13G/ALam Research Corp2 Feb 2015

VANGUARD GROUP INC(16)

  • SC 13G/ALam Research Corp27 Mar
  • SC 13G/ALam Research Corp8 Apr 2025
  • SC 13GLam Research Corp7 Apr 2025
  • SC 13G/ALam Research Corp13 Feb 2024
  • SC 13G/ALam Research Corp9 Feb 2023
  • SC 13G/ALam Research Corp10 Feb 2022
  • SC 13G/ALam Research Corp10 Feb 2021
  • SC 13G/ALam Research Corp12 Feb 2020
  • SC 13G/ALam Research Corp11 Feb 2019
  • SC 13G/ALam Research Corp9 Feb 2018

JPMORGAN CHASE & CO(10)

  • SC 13G/ALam Research Corp6 Dec 2016
  • SC 13G/ALam Research Corp8 Sep 2016
  • SC 13G/ALam Research Corp19 Jan 2016
  • SC 13G/ALam Research Corp15 Jan 2015
  • SC 13G/ALam Research Corp17 Jan 2014
  • SC 13G/ALam Research Corp17 Jan 2013
  • SC 13G/ALam Research Corp10 Apr 2012
  • SC 13G/ALam Research Corp27 Jan 2012
  • SC 13G/ALam Research Corp7 Nov 2011
  • SC 13GLam Research Corp8 Jul 2011

AMERIPRISE FINANCIAL INC(9)

  • SC 13G/ALam Research Corp12 Feb 2021
  • SC 13G/ALam Research Corp14 Feb 2020
  • SC 13G/ALam Research Corp14 Feb 2019
  • SC 13G/ALam Research Corp14 Feb 2018
  • SC 13G/ALam Research Corp10 Feb 2017
  • SC 13G/ALam Research Corp12 Feb 2016
  • SC 13G/ALam Research Corp17 Feb 2015
  • SC 13G/ALam Research Corp13 Feb 2014
  • SC 13GLam Research Corp13 Feb 2013

WELLINGTON MANAGEMENT CO LLP(9)

  • SC 13G/ALam Research Corp10 May 2010
  • SC 13G/ALam Research Corp12 Feb 2010
  • SC 13G/ALam Research Corp17 Feb 2009
  • SC 13G/ALam Research Corp14 Feb 2008
  • SC 13G/ALam Research Corp14 Feb 2007
  • SC 13G/ALam Research Corp13 Nov 2006
  • SC 13G/ALam Research Corp14 Feb 2006
  • SC 13G/ALam Research Corp14 Feb 2005
  • SC 13GLam Research Corp8 Oct 2004

CAPITAL GROUP INTERNATIONAL INC(7)

  • SC 13GLam Research Corp12 Feb 2008
  • SC 13G/ALam Research Corp9 Feb 2006
  • SC 13G/ALam Research Corp14 Feb 2005
  • SC 13G/ALam Research Corp13 Feb 2004
  • SC 13G/ALam Research Corp11 Feb 2003
  • SC 13G/ALam Research Corp12 Feb 2001
  • SC 13GLam Research Corp14 Feb 2000

PUTNAM LLC(6)

  • SC 13G/ALam Research Corp13 Feb 2007
  • SC 13G/ALam Research Corp10 Feb 2006
  • SC 13G/ALam Research Corp11 Feb 2005
  • SC 13G/ALam Research Corp13 Feb 2004
  • SC 13G/ALam Research Corp14 Feb 2003
  • SC 13G/ALam Research Corp13 Feb 2002

MELLON FINANCIAL CORP(5)

  • SC 13G/ALam Research Corp27 Jan 2000
  • SC 13G/ALam Research Corp5 Feb 1999
  • SC 13G/ALam Research Corp8 Oct 1998
  • SC 13G/ALam Research Corp9 Mar 1998
  • SC 13GLam Research Corp22 Jan 1998

CAPITAL GROUP COMPANIES INC ET AL(5)

  • SC 13GLam Research Corp9 Jul 1998
  • SC 13GLam Research Corp8 Jun 1998
  • SC 13G/ALam Research Corp12 Feb 1998
  • SC 13GLam Research Corp11 Feb 1998
  • SC 13GLam Research Corp10 Jul 1997

BARCLAYS GLOBAL INVESTORS NA /CA/(5)

  • SC 13G/ALam Research Corp10 Dec 2007
  • SC 13G/ALam Research Corp9 Mar 2007
  • SC 13GLam Research Corp23 Jan 2007
  • SC 13GLam Research Corp26 Jan 2006
  • SC 13GLam Research Corp11 Aug 2005

PIONEERING MANAGEMENT CORP /ADV(4)

  • SC 13G/ALam Research Corp17 Apr 1998
  • SC 13GLam Research Corp22 Jan 1998
  • SC 13G/ALam Research Corp4 Sep 1997
  • SC 13GLam Research Corp15 Jan 1997

AXA FINANCIAL INC(4)

  • SC 13G/ALam Research Corp13 Feb 2009
  • SC 13GLam Research Corp14 Feb 2008
  • SC 13G/ALam Research Corp14 Feb 1997
  • SC 13GLam Research Corp14 Feb 1996

FRANKLIN RESOURCES INC(3)

  • SC 13G/ALam Research Corp10 Feb 2005
  • SC 13G/ALam Research Corp13 Feb 2004
  • SC 13GLam Research Corp30 Jan 2003

CAPITAL GUARDIAN TRUST CO(3)

  • SC 13G/ALam Research Corp12 Feb 2009
  • SC 13GLam Research Corp12 Feb 1999
  • SC 13GLam Research Corp9 Jul 1998

A I M MANAGEMENT GROUP INC /DE/(3)

  • SC 13G/ALam Research Corp10 Feb 2004
  • SC 13GLam Research Corp10 Feb 2003
  • SC 13G/ALam Research Corp10 Apr 1996

PRICE T ROWE ASSOCIATES INC /MD/(2)

  • SC 13G/ALam Research Corp9 Feb 1999
  • SC 13GLam Research Corp10 Feb 1998

SELIGMAN J & W & CO INC /NY/(2)

  • SC 13G/ALam Research Corp20 May 1996
  • SC 13GLam Research Corp2 Feb 1996

TURNER INVESTMENT PARTNERS INC(2)

  • SC 13G/ALam Research Corp9 Feb 2010
  • SC 13GLam Research Corp12 Feb 2009

FIRST PACIFIC ADVISORS INC /CA/ /ADV(2)

  • SC 13GLam Research Corp19 Jan 2000
  • SC 13GLam Research Corp10 Feb 1999

WADDELL & REED FINANCIAL INC(2)

  • SC 13G/ALam Research Corp14 Feb 2012
  • SC 13GLam Research Corp8 Feb 2011

ALLIANCEBERNSTEIN L.P.(2)

  • SC 13G/ALam Research Corp9 Oct 2012
  • SC 13GLam Research Corp14 Feb 2012

GOLDMAN SACHS ASSET MANAGEMENT, L.P.(2)

  • SC 13G/ALam Research Corp13 Feb 2014
  • SC 13GLam Research Corp14 Feb 2013

BARCLAYS PLC(1)

  • SC 13G/ALam Research Corp10 Jan 2006

LAM RESEARCH CORP(1)

  • SC 13DOntrak Systems Inc3 Apr 1997

PILGRIM BAXTER & ASSOCIATES LTD /DE/ /ADV(1)

  • SC 13G/ALam Research Corp8 Mar 1996

VANGUARD CAPITAL MANAGEMENT LLC(1)

  • SC 13GLam Research Corp30 Apr