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FCEL US​
HomeStock ScreenerDocument SearchChartingWatchlistsRecent Filings

Fuelcell Energy Inc(FCEL US)

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Overview

ProfileEntity Structure

Documents

SEC Filings
Categorized
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.

FCEL US​
HomeStock ScreenerDocument SearchChartingWatchlistsRecent Filings

Fuelcell Energy Inc(FCEL US)

Ask AI
Doc SearchProfileEntity StructureFinancialsChartingShort InterestEmployees

Overview

ProfileEntity Structure

Documents

SEC Filings
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

Bishop Michael S.(56)

  • Form 4Statement of changes in beneficial ownership2 Jan
  • Form 4Statement of changes in beneficial ownership15 Dec 2025
  • Form 4Statement of changes in beneficial ownership9 Dec 2025
  • Form 4Statement of changes in beneficial ownership1 Dec 2025
  • Form 4Statement of changes in beneficial ownership2 Jan 2025
  • Form 4Statement of changes in beneficial ownership12 Dec 2024
  • Form 4Statement of changes in beneficial ownership9 Dec 2024
  • Form 4Statement of changes in beneficial ownership13 Dec 2023
  • Form 4Statement of changes in beneficial ownership7 Dec 2023
  • Form 4Statement of changes in beneficial ownership28 Nov 2023

England James Herbert(49)

  • Form 4Statement of changes in beneficial ownership19 Oct
  • Form 4Statement of changes in beneficial ownership16 Jul
  • Form 4Statement of changes in beneficial ownership17 Apr
  • Form 4Statement of changes in beneficial ownership10 Apr
  • Form 4Statement of changes in beneficial ownership20 Jan
  • Form 4Statement of changes in beneficial ownership16 Oct 2025
  • Form 4Statement of changes in beneficial ownership16 Jul 2025
  • Form 4Statement of changes in beneficial ownership23 Apr 2025
  • Form 4Statement of changes in beneficial ownership16 Jan 2025
  • Form 4Statement of changes in beneficial ownership17 Oct 2024

Rauseo Anthony(42)

  • Form 4Statement of changes in beneficial ownership9 Apr 2019
  • Form 4Statement of changes in beneficial ownership4 Apr 2019
  • Form 4Statement of changes in beneficial ownership11 Apr 2018
  • Form 4Statement of changes in beneficial ownership9 Apr 2018
  • Form 4Statement of changes in beneficial ownership4 Apr 2018
  • Form 4Statement of changes in beneficial ownership29 Mar 2018
  • Form 4Statement of changes in beneficial ownership10 Apr 2017
  • Form 4Statement of changes in beneficial ownership4 Apr 2017
  • Form 4Statement of changes in beneficial ownership29 Mar 2017
  • Form 4Statement of changes in beneficial ownership11 Apr 2016

Bottone Arthur A. Jr.(38)

  • Form 4Statement of changes in beneficial ownership9 Apr 2019
  • Form 4Statement of changes in beneficial ownership4 Apr 2019
  • Form 4Statement of changes in beneficial ownership11 Apr 2018
  • Form 4Statement of changes in beneficial ownership9 Apr 2018
  • Form 4Statement of changes in beneficial ownership4 Apr 2018
  • Form 4Statement of changes in beneficial ownership29 Mar 2018
  • Form 4Statement of changes in beneficial ownership10 Apr 2017
  • Form 4Statement of changes in beneficial ownership4 Apr 2017
  • Form 4Statement of changes in beneficial ownership29 Mar 2017
  • Form 4Statement of changes in beneficial ownership11 Apr 2016

MAHLER JOSEPH G(35)

  • Form 4Statement of changes in beneficial ownership8 Apr 2011
  • Form 4Statement of changes in beneficial ownership29 Mar 2011
  • Form 4Statement of changes in beneficial ownership20 Jan 2011
  • Form 5Annual statement of beneficial ownership14 Dec 2010
  • Form 4Statement of changes in beneficial ownership21 Apr 2010
  • Form 4Statement of changes in beneficial ownership29 Mar 2010
  • Form 5Annual statement of beneficial ownership8 Dec 2009
  • Form 4/APRIMARY DOCUMENT2 Jun 2009
  • Form 4Statement of changes in beneficial ownership31 Mar 2009
  • Form 4Statement of changes in beneficial ownership20 Mar 2009

Von Althann Natica(32)

  • Form 4Statement of changes in beneficial ownership22 Apr
  • Form 4Statement of changes in beneficial ownership10 Apr
  • Form 4Statement of changes in beneficial ownership23 Apr 2025
  • Form 4Statement of changes in beneficial ownership16 Jan 2025
  • Form 4Statement of changes in beneficial ownership17 Oct 2024
  • Form 4Statement of changes in beneficial ownership16 Jul 2024
  • Form 4Statement of changes in beneficial ownership17 Apr 2024
  • Form 4Statement of changes in beneficial ownership18 Jan 2024
  • Form 4Statement of changes in beneficial ownership17 Oct 2023
  • Form 4Statement of changes in beneficial ownership19 Jul 2023

Few Jason(31)

  • Form 4Statement of changes in beneficial ownership2 Jan
  • Form 4Statement of changes in beneficial ownership15 Dec 2025
  • Form 4Statement of changes in beneficial ownership9 Dec 2025
  • Form 4Statement of changes in beneficial ownership1 Dec 2025
  • Form 4Statement of changes in beneficial ownership2 Jan 2025
  • Form 4Statement of changes in beneficial ownership12 Dec 2024
  • Form 4Statement of changes in beneficial ownership9 Dec 2024
  • Form 4Statement of changes in beneficial ownership13 Dec 2023
  • Form 4Statement of changes in beneficial ownership7 Dec 2023
  • Form 4Statement of changes in beneficial ownership28 Nov 2023

BENTLEY CHRISTOPHER R(30)

  • Form 4Statement of changes in beneficial ownership29 Mar 2011
  • Form 4/AStatement of changes in beneficial ownership (amendment)31 Mar 2011
  • Form 4Statement of changes in beneficial ownership20 Jan 2011
  • Form 5Annual statement of beneficial ownership14 Dec 2010
  • Form 4Statement of changes in beneficial ownership21 Apr 2010
  • Form 4Statement of changes in beneficial ownership29 Mar 2010
  • Form 5Annual statement of beneficial ownership8 Dec 2009
  • Form 4Statement of changes in beneficial ownership31 Mar 2009
  • Form 4/APRIMARY DOCUMENT2 Jun 2009
  • Form 4Statement of changes in beneficial ownership27 Mar 2009

ROLLS JOHN A(28)

  • Form 4Statement of changes in beneficial ownership21 Nov 2018
  • Form 4Statement of changes in beneficial ownership28 Jun 2018
  • Form 4Statement of changes in beneficial ownership9 Apr 2018
  • Form 4Statement of changes in beneficial ownership10 Apr 2017
  • Form 4Statement of changes in beneficial ownership11 Apr 2016
  • Form 4Statement of changes in beneficial ownership2 Jul 2015
  • Form 4Statement of changes in beneficial ownership29 Jun 2015
  • Form 4Statement of changes in beneficial ownership6 Apr 2015
  • Form 4Statement of changes in beneficial ownership8 Oct 2014
  • Form 4Statement of changes in beneficial ownership31 Mar 2014

Hansen Cynthia L(23)

  • Form 4Statement of changes in beneficial ownership19 Oct
  • Form 4Statement of changes in beneficial ownership16 Jul
  • Form 4Statement of changes in beneficial ownership17 Apr
  • Form 4Statement of changes in beneficial ownership10 Apr
  • Form 4Statement of changes in beneficial ownership20 Jan
  • Form 4Statement of changes in beneficial ownership16 Oct 2025
  • Form 4Statement of changes in beneficial ownership16 Jul 2025
  • Form 4Statement of changes in beneficial ownership23 Apr 2025
  • Form 4Statement of changes in beneficial ownership17 Apr 2024
  • Form 4Statement of changes in beneficial ownership18 Jan 2024

Lisowski Michael(21)

  • Form 4Statement of changes in beneficial ownership2 Jan 2025
  • Form 4Statement of changes in beneficial ownership12 Dec 2024
  • Form 4Statement of changes in beneficial ownership9 Dec 2024
  • Form 4Statement of changes in beneficial ownership13 Dec 2023
  • Form 4Statement of changes in beneficial ownership7 Dec 2023
  • Form 4Statement of changes in beneficial ownership28 Nov 2023
  • Form 4Statement of changes in beneficial ownership24 Aug 2023
  • Form 4Statement of changes in beneficial ownership14 Dec 2022
  • Form 4Statement of changes in beneficial ownership7 Dec 2022
  • Form 4Statement of changes in beneficial ownership29 Nov 2022

Bingham Betsy B(21)

  • Form 4Statement of changes in beneficial ownership22 Apr
  • Form 4Statement of changes in beneficial ownership10 Apr
  • Form 4Statement of changes in beneficial ownership10 Apr
  • Form 4/AStatement of changes in beneficial ownership (amendment)13 Apr
  • Form 4Statement of changes in beneficial ownership23 Dec 2025
  • Form 4Statement of changes in beneficial ownership23 Apr 2025
  • Form 4Statement of changes in beneficial ownership23 Apr 2025
  • Form 4Statement of changes in beneficial ownership16 Jan 2025
  • Form 4Statement of changes in beneficial ownership17 Oct 2024
  • Form 4Statement of changes in beneficial ownership16 Jul 2024

HILZINGER MATTHEW F(20)

  • Form 4Statement of changes in beneficial ownership10 Apr
  • Form 4Statement of changes in beneficial ownership23 Apr 2025
  • Form 4Statement of changes in beneficial ownership17 Apr 2024
  • Form 4Statement of changes in beneficial ownership24 May 2023
  • Form 4Statement of changes in beneficial ownership11 Apr 2022
  • Form 4Statement of changes in beneficial ownership27 Jan 2022
  • Form 4Statement of changes in beneficial ownership18 Oct 2021
  • Form 4Statement of changes in beneficial ownership16 Jul 2021
  • Form 4Statement of changes in beneficial ownership19 Apr 2021
  • Form 4Statement of changes in beneficial ownership12 Apr 2021

BAGATELLE WARREN D(18)

  • Form 4Statement of changes in beneficial ownership25 Jun 2007
  • Form 4Statement of changes in beneficial ownership29 Mar 2007
  • Form 4Statement of changes in beneficial ownership5 May 2006
  • Form 4Statement of changes in beneficial ownership19 Apr 2006
  • Form 4Statement of changes in beneficial ownership30 Mar 2006
  • Form 4/AStatement of changes in beneficial ownership (amendment)23 May 2006
  • Form 4Statement of changes in beneficial ownership21 Dec 2005
  • Form 5Annual statement of beneficial ownership13 Dec 2005
  • Form 4Statement of changes in beneficial ownership4 Oct 2005
  • Form 4Statement of changes in beneficial ownership22 Jun 2005

GERSON JAMES D(16)

  • Form 4Statement of changes in beneficial ownership31 Mar 2014
  • Form 4Statement of changes in beneficial ownership19 Apr 2013
  • Form 4Statement of changes in beneficial ownership1 Apr 2013
  • Form 4Statement of changes in beneficial ownership9 Apr 2012
  • Form 4Statement of changes in beneficial ownership4 Oct 2011
  • Form 4Statement of changes in beneficial ownership25 Apr 2011
  • Form 4Statement of changes in beneficial ownership29 Mar 2010
  • Form 4Statement of changes in beneficial ownership30 Mar 2009
  • Form 4Statement of changes in beneficial ownership8 Apr 2008
  • Form 4Statement of changes in beneficial ownership29 Mar 2007

LAWSON WILLIAM A(16)

  • Form 4Statement of changes in beneficial ownership6 Apr 2015
  • Form 4Statement of changes in beneficial ownership31 Mar 2014
  • Form 4Statement of changes in beneficial ownership1 Apr 2013
  • Form 4Statement of changes in beneficial ownership9 Apr 2012
  • Form 4Statement of changes in beneficial ownership25 Apr 2011
  • Form 4Statement of changes in beneficial ownership29 Mar 2010
  • Form 4Statement of changes in beneficial ownership30 Mar 2009
  • Form 5Annual statement of beneficial ownership12 Dec 2008
  • Form 4Statement of changes in beneficial ownership10 Oct 2008
  • Form 4Statement of changes in beneficial ownership8 Apr 2008

Leo Anthony(16)

  • Form 4Statement of changes in beneficial ownership13 Dec 2023
  • Form 4Statement of changes in beneficial ownership7 Dec 2023
  • Form 4Statement of changes in beneficial ownership28 Nov 2023
  • Form 4Statement of changes in beneficial ownership24 Aug 2023
  • Form 4Statement of changes in beneficial ownership14 Dec 2022
  • Form 4Statement of changes in beneficial ownership7 Dec 2022
  • Form 4Statement of changes in beneficial ownership29 Nov 2022
  • Form 4Statement of changes in beneficial ownership26 Aug 2022
  • Form 4Statement of changes in beneficial ownership14 Dec 2021
  • Form 4Statement of changes in beneficial ownership29 Nov 2021

Dolger Joshua(16)

  • Form 4Statement of changes in beneficial ownership2 Jan
  • Form 4Statement of changes in beneficial ownership15 Dec 2025
  • Form 4Statement of changes in beneficial ownership9 Dec 2025
  • Form 4Statement of changes in beneficial ownership1 Dec 2025
  • Form 4Statement of changes in beneficial ownership2 Jan 2025
  • Form 4Statement of changes in beneficial ownership12 Dec 2024
  • Form 4Statement of changes in beneficial ownership9 Dec 2024
  • Form 4Statement of changes in beneficial ownership27 Jun 2024
  • Form 4Statement of changes in beneficial ownership21 May 2024
  • Form 4Statement of changes in beneficial ownership13 Dec 2023

BRDAR DANIEL(15)

  • Form 4Statement of changes in beneficial ownership20 Jan 2011
  • Form 4Statement of changes in beneficial ownership21 Apr 2010
  • Form 4Statement of changes in beneficial ownership29 Mar 2010
  • Form 4Statement of changes in beneficial ownership31 Mar 2009
  • Form 4/APRIMARY DOCUMENT2 Jun 2009
  • Form 4Statement of changes in beneficial ownership20 Mar 2009
  • Form 4Statement of changes in beneficial ownership29 Feb 2008
  • Form 4Statement of changes in beneficial ownership1 Feb 2008
  • Form 4Statement of changes in beneficial ownership15 Mar 2007
  • Form 4Statement of changes in beneficial ownership25 Jan 2006

Groobey John Christopher(15)

  • Form 4Statement of changes in beneficial ownership11 Apr 2022
  • Form 4Statement of changes in beneficial ownership27 Jan 2022
  • Form 4Statement of changes in beneficial ownership18 Oct 2021
  • Form 4Statement of changes in beneficial ownership16 Jul 2021
  • Form 4Statement of changes in beneficial ownership19 Apr 2021
  • Form 4Statement of changes in beneficial ownership12 Apr 2021
  • Form 4Statement of changes in beneficial ownership20 Oct 2020
  • Form 4Statement of changes in beneficial ownership20 Oct 2020
  • Form 4Statement of changes in beneficial ownership20 Jan 2021
  • Form 4/AStatement of changes in beneficial ownership (amendment)20 Jan 2021

KEMPNER THOMAS L(13)

  • Form 4Statement of changes in beneficial ownership28 Jun 2010
  • Form 4Statement of changes in beneficial ownership30 Mar 2010
  • Form 4Statement of changes in beneficial ownership30 Mar 2009
  • Form 4Statement of changes in beneficial ownership7 Nov 2008
  • Form 4Statement of changes in beneficial ownership7 Nov 2008
  • Form 4Statement of changes in beneficial ownership8 Apr 2008
  • Form 4Statement of changes in beneficial ownership5 Apr 2007
  • Form 4Statement of changes in beneficial ownership29 Mar 2007
  • Form 4/AStatement of changes in beneficial ownership (amendment)23 May 2006
  • Form 4Statement of changes in beneficial ownership30 Mar 2006

Arasimowicz Jennifer D(12)

  • Form 4Statement of changes in beneficial ownership7 Apr 2021
  • Form 4Statement of changes in beneficial ownership2 Mar 2021
  • Form 4Statement of changes in beneficial ownership27 Nov 2020
  • Form 4Statement of changes in beneficial ownership26 Aug 2020
  • Form 4Statement of changes in beneficial ownership9 Apr 2020
  • Form 4Statement of changes in beneficial ownership9 Apr 2019
  • Form 4Statement of changes in beneficial ownership11 Apr 2018
  • Form 4Statement of changes in beneficial ownership9 Apr 2018
  • Form 4Statement of changes in beneficial ownership2 Nov 2017
  • Form 3Initial statement of beneficial ownership10 Apr 2017

WEST TOGO D JR(11)

  • Form 4Statement of changes in beneficial ownership10 Apr 2017
  • Form 4Statement of changes in beneficial ownership11 Apr 2016
  • Form 4Statement of changes in beneficial ownership6 Apr 2015
  • Form 4Statement of changes in beneficial ownership31 Mar 2014
  • Form 4Statement of changes in beneficial ownership1 Apr 2013
  • Form 4Statement of changes in beneficial ownership9 Apr 2012
  • Form 4Statement of changes in beneficial ownership25 Apr 2011
  • Form 4Statement of changes in beneficial ownership29 Mar 2010
  • Form 4Statement of changes in beneficial ownership30 Mar 2009
  • Form 4Statement of changes in beneficial ownership8 Apr 2008

Bromley Richard A(11)

  • Form 4Statement of changes in beneficial ownership6 Apr 2015
  • Form 4Statement of changes in beneficial ownership31 Mar 2014
  • Form 4Statement of changes in beneficial ownership23 Apr 2013
  • Form 4Statement of changes in beneficial ownership1 Apr 2013
  • Form 4Statement of changes in beneficial ownership9 Apr 2012
  • Form 4Statement of changes in beneficial ownership25 Apr 2011
  • Form 4Statement of changes in beneficial ownership29 Mar 2010
  • Form 4Statement of changes in beneficial ownership30 Mar 2009
  • Form 4Statement of changes in beneficial ownership8 Apr 2008
  • Form 4Statement of changes in beneficial ownership18 Dec 2007

Feasel Mark(11)

  • Form 4Statement of changes in beneficial ownership2 Jan 2025
  • Form 4Statement of changes in beneficial ownership12 Dec 2024
  • Form 4Statement of changes in beneficial ownership9 Dec 2024
  • Form 4Statement of changes in beneficial ownership27 Mar 2024
  • Form 4Statement of changes in beneficial ownership13 Dec 2023
  • Form 4Statement of changes in beneficial ownership7 Dec 2023
  • Form 4Statement of changes in beneficial ownership27 Mar 2023
  • Form 4Statement of changes in beneficial ownership14 Dec 2022
  • Form 4Statement of changes in beneficial ownership7 Dec 2022
  • Form 4Statement of changes in beneficial ownership17 May 2022

MARU HANSRAJ C(10)

  • Form 4Statement of changes in beneficial ownership16 May 2006
  • Form 4Statement of changes in beneficial ownership25 Jan 2006
  • Form 4Statement of changes in beneficial ownership24 Jan 2006
  • Form 4Statement of changes in beneficial ownership28 Nov 2005
  • Form 4Statement of changes in beneficial ownership14 Nov 2005
  • Form 4Statement of changes in beneficial ownership25 Oct 2005
  • Form 4Statement of changes in beneficial ownership19 May 2005
  • Form 4PRIMARY DOCUMENT27 May 2004
  • Form 4PRIMARY DOCUMENT30 Apr 2004
  • Form 4PRIMARY DOCUMENT18 Jun 2003

LEITMAN JERRY D(10)

  • Form 4Statement of changes in beneficial ownership12 Apr 2007
  • Form 4Statement of changes in beneficial ownership21 Nov 2006
  • Form 4Statement of changes in beneficial ownership22 May 2006
  • Form 4Statement of changes in beneficial ownership25 Jan 2006
  • Form 4Statement of changes in beneficial ownership29 Nov 2005
  • Form 4Statement of changes in beneficial ownership20 May 2005
  • Form 4Statement of changes in beneficial ownership20 May 2005
  • Form 4PRIMARY DOCUMENT27 May 2004
  • Form 4PRIMARY DOCUMENT30 Apr 2004
  • Form 4PRIMARY DOCUMENT18 Jun 2003

PETTY GEORGE K(10)

  • Form 4Statement of changes in beneficial ownership25 Apr 2011
  • Form 4Statement of changes in beneficial ownership29 Mar 2010
  • Form 4Statement of changes in beneficial ownership30 Mar 2009
  • Form 4Statement of changes in beneficial ownership8 Apr 2008
  • Form 4Statement of changes in beneficial ownership29 Mar 2007
  • Form 4Statement of changes in beneficial ownership30 Mar 2006
  • Form 4/AStatement of changes in beneficial ownership (amendment)23 May 2006
  • Form 4Statement of changes in beneficial ownership21 Dec 2005
  • Form 4Statement of changes in beneficial ownership4 Oct 2005
  • Form 3PRIMARY DOCUMENT23 Dec 2003

Ludemann Bruce A(10)

  • Form 5Annual statement of beneficial ownership8 Dec 2009
  • Form 4/APRIMARY DOCUMENT2 Jun 2009
  • Form 4Statement of changes in beneficial ownership31 Mar 2009
  • Form 4Statement of changes in beneficial ownership20 Mar 2009
  • Form 5Annual statement of beneficial ownership12 Dec 2008
  • Form 4Statement of changes in beneficial ownership29 Feb 2008
  • Form 4Statement of changes in beneficial ownership1 Feb 2008
  • Form 4Statement of changes in beneficial ownership15 Mar 2007
  • Form 4Statement of changes in beneficial ownership19 Jul 2006
  • Form 3Initial statement of beneficial ownership19 Apr 2006

Achanta Shankar(8)

  • Form 4Statement of changes in beneficial ownership8 Oct
  • Form 4Statement of changes in beneficial ownership8 Jul
  • Form 4Statement of changes in beneficial ownership12 May
  • Form 4Statement of changes in beneficial ownership21 Apr
  • Form 4Statement of changes in beneficial ownership2 Jan
  • Form 4Statement of changes in beneficial ownership1 Dec 2025
  • Form 4Statement of changes in beneficial ownership12 May 2025
  • Form 3Initial statement of beneficial ownership10 Jan 2025

Sims Wilson Donna(7)

  • Form 4Statement of changes in beneficial ownership10 Apr
  • Form 4Statement of changes in beneficial ownership23 Apr 2025
  • Form 4Statement of changes in beneficial ownership17 Apr 2024
  • Form 4Statement of changes in beneficial ownership24 May 2023
  • Form 4Statement of changes in beneficial ownership11 Apr 2022
  • Form 3Initial statement of beneficial ownership17 Aug 2021
  • Form 4Statement of changes in beneficial ownership17 Aug 2021

EPSTEIN GLENN H(6)

  • Form 4Statement of changes in beneficial ownership8 Apr 2010
  • Form 4Statement of changes in beneficial ownership30 Mar 2009
  • Form 4Statement of changes in beneficial ownership9 Sep 2008
  • Form 4Statement of changes in beneficial ownership8 Apr 2008
  • Form 4Statement of changes in beneficial ownership18 Dec 2007
  • Form 3Initial statement of beneficial ownership24 Sep 2007

Livingston III Homer John(6)

  • Form 4Statement of changes in beneficial ownership19 Oct
  • Form 4Statement of changes in beneficial ownership15 Sep
  • Form 4Statement of changes in beneficial ownership20 Jul
  • Form 4Statement of changes in beneficial ownership16 Jul
  • Form 4Statement of changes in beneficial ownership15 Jun
  • Form 3Initial statement of beneficial ownership12 Jun

NOCK HERBERT T(5)

  • Form 4Statement of changes in beneficial ownership7 Sep 2005
  • Form 4Statement of changes in beneficial ownership16 May 2006
  • Form 4Statement of changes in beneficial ownership20 May 2005
  • Form 4Statement of changes in beneficial ownership31 Mar 2005
  • Form 4PRIMARY DOCUMENT30 Apr 2004

Jordan Tyrone Michael(5)

  • Form 4Statement of changes in beneficial ownership10 Apr
  • Form 4Statement of changes in beneficial ownership23 Apr 2025
  • Form 3Initial statement of beneficial ownership29 Apr 2024
  • Form 4Statement of changes in beneficial ownership29 Apr 2024
  • Form 4/AStatement of changes in beneficial ownership (amendment)23 Apr 2025

MURPHY CHARLES J(4)

  • Form 4Statement of changes in beneficial ownership25 Jun 2007
  • Form 4Statement of changes in beneficial ownership30 Mar 2006
  • Form 4Statement of changes in beneficial ownership21 Dec 2005
  • Form 4Statement of changes in beneficial ownership4 Oct 2005

CASTEN THOMAS R(3)

  • Form 4Statement of changes in beneficial ownership17 May 2006
  • Form 4Statement of changes in beneficial ownership21 Dec 2005
  • Form 4Statement of changes in beneficial ownership4 Oct 2005

POSCO ENERGY CO, LTD(3)

  • Form 4PRIMARY DOCUMENT2 May 2012
  • Form 3PRIMARY DOCUMENT2 May 2012
  • Form 3PRIMARY DOCUMENT2 Nov 2009

Von Branconi Christof Franz Salvador(2)

  • Form 4Statement of changes in beneficial ownership28 Oct 2009
  • Form 3Initial statement of beneficial ownership20 Dec 2007

Browning Paul F(2)

  • Form 4Statement of changes in beneficial ownership11 Apr 2016
  • Form 3Initial statement of beneficial ownership14 Aug 2015

Lampe-Onnerud Christina(2)

  • Form 4Statement of changes in beneficial ownership27 Nov 2018
  • Form 3Initial statement of beneficial ownership19 Nov 2018

Hopper Peter B.(2)

  • Form 4Statement of changes in beneficial ownership30 Oct
  • Form 3Initial statement of beneficial ownership30 Oct

Schreiber Amanda Justine(2)

  • Form 4Statement of changes in beneficial ownership27 Jan
  • Form 3Initial statement of beneficial ownership23 Jan

LOEB INVESTORS CO LXXV(1)

  • Form 4PRIMARY DOCUMENT24 Jun 2003

Bode Michael(1)

  • Form 4PRIMARY DOCUMENT7 Jan 2008

Sotos Christopher S(1)

  • Form 3Initial statement of beneficial ownership1 Oct 2014

Hill Michael James(1)

  • Form 3Initial statement of beneficial ownership16 May 2025

Latino Matthew O'Neil(1)

  • Form 3Initial statement of beneficial ownership16 Oct

≥5% Ownership

BlackRock Inc.(20)

  • SC 13G/AFuelcell Energy Inc26 Jan 2024
  • SC 13G/AFuelcell Energy Inc5 May 2023
  • SC 13G/AFuelcell Energy Inc24 Jan 2023
  • SC 13G/AFuelcell Energy Inc9 May 2022
  • SC 13G/AFuelcell Energy Inc1 Feb 2022
  • SC 13G/AFuelcell Energy Inc7 May 2021
  • SC 13GFuelcell Energy Inc2 Feb 2021
  • SC 13G/AFuelcell Energy Inc8 Mar 2019
  • SC 13GFuelcell Energy Inc8 Feb 2019
  • SC 13G/AFuelcell Energy Inc8 Feb 2017

VANGUARD GROUP INC(10)

  • SC 13G/AFuelcell Energy Inc26 Mar
  • SC 13GFuelcell Energy Inc30 Jan
  • SC 13G/AFuelcell Energy Inc29 Jul 2025
  • SC 13GFuelcell Energy Inc30 Apr 2025
  • SC 13G/AFuelcell Energy Inc12 Nov 2024
  • SC 13G/AFuelcell Energy Inc4 Nov 2024
  • SC 13G/AFuelcell Energy Inc13 Feb 2024
  • SC 13G/AFuelcell Energy Inc9 Feb 2023
  • SC 13G/AFuelcell Energy Inc9 Mar 2022
  • SC 13GFuelcell Energy Inc10 Feb 2022

WELLINGTON MANAGEMENT CO LLP(6)

  • SC 13G/AFuelcell Energy Inc10 Jan 2007
  • SC 13G/AFuelcell Energy Inc13 Nov 2006
  • SC 13G/AFuelcell Energy Inc14 Feb 2006
  • SC 13G/AFuelcell Energy Inc14 Feb 2005
  • SC 13GFuelcell Energy Inc12 Feb 2004
  • SC 13G/AFuelcell Energy Inc10 Feb 2004

Invesco Ltd.(5)

  • SC 13G/AFuelcell Energy Inc8 Feb 2011
  • SC 13G/AFuelcell Energy Inc12 Feb 2010
  • SC 13G/AFuelcell Energy Inc17 Feb 2009
  • SC 13G/AFuelcell Energy Inc13 Feb 2008
  • SC 13GFuelcell Energy Inc14 Feb 2007

Legal & General Group Plc(4)

  • SC 13G/AFuelcell Energy Inc14 Aug
  • SC 13GFuelcell Energy Inc11 Feb
  • SC 13GFuelcell Energy Inc11 Aug 2025
  • SC 13GFuelcell Energy Inc13 Feb 2025

TCW GROUP INC(3)

  • SC 13G/AFuelcell Energy Inc9 Feb 2009
  • SC 13G/AFuelcell Energy Inc11 Feb 2008
  • SC 13GFuelcell Energy Inc12 Feb 2007

HEARTLAND ADVISORS INC(3)

  • SC 13G/AFuelcell Energy Inc10 Feb 2011
  • SC 13G/AFuelcell Energy Inc10 Feb 2011
  • SC 13GFuelcell Energy Inc10 Feb 2010

CAPITAL VENTURES INTERNATIONAL /E9/(3)

  • SC 13G/AFuelcell Energy Inc13 Feb 2013
  • SC 13G/AFuelcell Energy Inc14 Feb 2012
  • SC 13GFuelcell Energy Inc19 Jan 2011

Rosen Lawrence I(3)

  • SC 13G/AFuelcell Energy Inc22 Feb 2021
  • SC 13G/AFuelcell Energy Inc13 Jul 2020
  • SC 13GFuelcell Energy Inc10 Feb 2020

BALLENTINE CAPITAL MANAGEMENT INC(2)

  • SC 13G/AFuelcell Energy Inc12 Feb 2001
  • SC 13GFuelcell Energy Inc7 Sep 2000

MERUELO ALEX(2)

  • SC 13GFuelcell Energy Inc15 Oct
  • SC 13GFuelcell Energy Inc13 Jul

LOEB INVESTORS CO LXXV(2)

  • SC 13D/AFuelcell Energy Inc30 Oct 2000
  • SC 13D/AFuelcell Energy Inc6 Jun 2000

LEVIN CAPITAL STRATEGIES, L.P.(2)

  • SC 13G/AFuelcell Energy Inc21 May 2018
  • SC 13GFuelcell Energy Inc10 May 2018

POSCO Power CORP(2)

  • SC 13G/AFuelcell Energy Inc2 Nov 2009
  • SC 13GFuelcell Energy Inc27 Feb 2007

Hudson Bay Capital Management LP(2)

  • SC 13G/AFuelcell Energy Inc31 Jan 2019
  • SC 13GFuelcell Energy Inc2 Feb 2018

DnB Asset Management AS(2)

  • SC 13G/AFuelcell Energy Inc5 Feb 2013
  • SC 13GFuelcell Energy Inc8 Feb 2012

CVI Investments, Inc.(2)

  • SC 13G/AFuelcell Energy Inc16 Feb 2021
  • SC 13GFuelcell Energy Inc1 Oct 2020

BlackRock, Inc.(2)

  • SC 13GFuelcell Energy Inc28 Jul
  • SC 13GFuelcell Energy Inc17 Jul 2025

NEVIS CAPITAL MANAGEMENT INC /ADV(1)

  • SC 13GEnergy Research Corp /Ny/28 Apr 1998

PG&E ENTERPRISES(1)

  • SC 13G/AEnergy Research Corp /Ny/14 Feb 1997

GERSON JAMES D(1)

  • SC 13GEnergy Research Corp /Ny/12 Feb 1999

NRG ENERGY, INC.(1)

  • SC 13DFuelcell Energy Inc11 Aug 2014

Citadel Securities GP LLC(1)

  • SC 13GFuelcell Energy Inc4 Aug

VANGUARD CAPITAL MANAGEMENT LLC(1)

  • SC 13GFuelcell Energy Inc30 Oct

Insider Ownership

Bishop Michael S.(56)

  • Form 4Statement of changes in beneficial ownership2 Jan
  • Form 4Statement of changes in beneficial ownership15 Dec 2025
  • Form 4Statement of changes in beneficial ownership9 Dec 2025
  • Form 4Statement of changes in beneficial ownership1 Dec 2025
  • Form 4Statement of changes in beneficial ownership2 Jan 2025
  • Form 4Statement of changes in beneficial ownership12 Dec 2024
  • Form 4Statement of changes in beneficial ownership9 Dec 2024
  • Form 4Statement of changes in beneficial ownership13 Dec 2023
  • Form 4Statement of changes in beneficial ownership7 Dec 2023
  • Form 4Statement of changes in beneficial ownership28 Nov 2023

England James Herbert(49)

  • Form 4Statement of changes in beneficial ownership19 Oct
  • Form 4Statement of changes in beneficial ownership16 Jul
  • Form 4Statement of changes in beneficial ownership17 Apr
  • Form 4Statement of changes in beneficial ownership10 Apr
  • Form 4Statement of changes in beneficial ownership20 Jan
  • Form 4Statement of changes in beneficial ownership16 Oct 2025
  • Form 4Statement of changes in beneficial ownership16 Jul 2025
  • Form 4Statement of changes in beneficial ownership23 Apr 2025
  • Form 4Statement of changes in beneficial ownership16 Jan 2025
  • Form 4Statement of changes in beneficial ownership17 Oct 2024

Rauseo Anthony(42)

  • Form 4Statement of changes in beneficial ownership9 Apr 2019
  • Form 4Statement of changes in beneficial ownership4 Apr 2019
  • Form 4Statement of changes in beneficial ownership11 Apr 2018
  • Form 4Statement of changes in beneficial ownership9 Apr 2018
  • Form 4Statement of changes in beneficial ownership4 Apr 2018
  • Form 4Statement of changes in beneficial ownership29 Mar 2018
  • Form 4Statement of changes in beneficial ownership10 Apr 2017
  • Form 4Statement of changes in beneficial ownership4 Apr 2017
  • Form 4Statement of changes in beneficial ownership29 Mar 2017
  • Form 4Statement of changes in beneficial ownership11 Apr 2016

Bottone Arthur A. Jr.(38)

  • Form 4Statement of changes in beneficial ownership9 Apr 2019
  • Form 4Statement of changes in beneficial ownership4 Apr 2019
  • Form 4Statement of changes in beneficial ownership11 Apr 2018
  • Form 4Statement of changes in beneficial ownership9 Apr 2018
  • Form 4Statement of changes in beneficial ownership4 Apr 2018
  • Form 4Statement of changes in beneficial ownership29 Mar 2018
  • Form 4Statement of changes in beneficial ownership10 Apr 2017
  • Form 4Statement of changes in beneficial ownership4 Apr 2017
  • Form 4Statement of changes in beneficial ownership29 Mar 2017
  • Form 4Statement of changes in beneficial ownership11 Apr 2016

MAHLER JOSEPH G(35)

  • Form 4Statement of changes in beneficial ownership8 Apr 2011
  • Form 4Statement of changes in beneficial ownership29 Mar 2011
  • Form 4Statement of changes in beneficial ownership20 Jan 2011
  • Form 5Annual statement of beneficial ownership14 Dec 2010
  • Form 4Statement of changes in beneficial ownership21 Apr 2010
  • Form 4Statement of changes in beneficial ownership29 Mar 2010
  • Form 5Annual statement of beneficial ownership8 Dec 2009
  • Form 4/APRIMARY DOCUMENT2 Jun 2009
  • Form 4Statement of changes in beneficial ownership31 Mar 2009
  • Form 4Statement of changes in beneficial ownership20 Mar 2009

Von Althann Natica(32)

  • Form 4Statement of changes in beneficial ownership22 Apr
  • Form 4Statement of changes in beneficial ownership10 Apr
  • Form 4Statement of changes in beneficial ownership23 Apr 2025
  • Form 4Statement of changes in beneficial ownership16 Jan 2025
  • Form 4Statement of changes in beneficial ownership17 Oct 2024
  • Form 4Statement of changes in beneficial ownership16 Jul 2024
  • Form 4Statement of changes in beneficial ownership17 Apr 2024
  • Form 4Statement of changes in beneficial ownership18 Jan 2024
  • Form 4Statement of changes in beneficial ownership17 Oct 2023
  • Form 4Statement of changes in beneficial ownership19 Jul 2023

Few Jason(31)

  • Form 4Statement of changes in beneficial ownership2 Jan
  • Form 4Statement of changes in beneficial ownership15 Dec 2025
  • Form 4Statement of changes in beneficial ownership9 Dec 2025
  • Form 4Statement of changes in beneficial ownership1 Dec 2025
  • Form 4Statement of changes in beneficial ownership2 Jan 2025
  • Form 4Statement of changes in beneficial ownership12 Dec 2024
  • Form 4Statement of changes in beneficial ownership9 Dec 2024
  • Form 4Statement of changes in beneficial ownership13 Dec 2023
  • Form 4Statement of changes in beneficial ownership7 Dec 2023
  • Form 4Statement of changes in beneficial ownership28 Nov 2023

BENTLEY CHRISTOPHER R(30)

  • Form 4Statement of changes in beneficial ownership29 Mar 2011
  • Form 4/AStatement of changes in beneficial ownership (amendment)31 Mar 2011
  • Form 4Statement of changes in beneficial ownership20 Jan 2011
  • Form 5Annual statement of beneficial ownership14 Dec 2010
  • Form 4Statement of changes in beneficial ownership21 Apr 2010
  • Form 4Statement of changes in beneficial ownership29 Mar 2010
  • Form 5Annual statement of beneficial ownership8 Dec 2009
  • Form 4Statement of changes in beneficial ownership31 Mar 2009
  • Form 4/APRIMARY DOCUMENT2 Jun 2009
  • Form 4Statement of changes in beneficial ownership27 Mar 2009

ROLLS JOHN A(28)

  • Form 4Statement of changes in beneficial ownership21 Nov 2018
  • Form 4Statement of changes in beneficial ownership28 Jun 2018
  • Form 4Statement of changes in beneficial ownership9 Apr 2018
  • Form 4Statement of changes in beneficial ownership10 Apr 2017
  • Form 4Statement of changes in beneficial ownership11 Apr 2016
  • Form 4Statement of changes in beneficial ownership2 Jul 2015
  • Form 4Statement of changes in beneficial ownership29 Jun 2015
  • Form 4Statement of changes in beneficial ownership6 Apr 2015
  • Form 4Statement of changes in beneficial ownership8 Oct 2014
  • Form 4Statement of changes in beneficial ownership31 Mar 2014

Hansen Cynthia L(23)

  • Form 4Statement of changes in beneficial ownership19 Oct
  • Form 4Statement of changes in beneficial ownership16 Jul
  • Form 4Statement of changes in beneficial ownership17 Apr
  • Form 4Statement of changes in beneficial ownership10 Apr
  • Form 4Statement of changes in beneficial ownership20 Jan
  • Form 4Statement of changes in beneficial ownership16 Oct 2025
  • Form 4Statement of changes in beneficial ownership16 Jul 2025
  • Form 4Statement of changes in beneficial ownership23 Apr 2025
  • Form 4Statement of changes in beneficial ownership17 Apr 2024
  • Form 4Statement of changes in beneficial ownership18 Jan 2024

Lisowski Michael(21)

  • Form 4Statement of changes in beneficial ownership2 Jan 2025
  • Form 4Statement of changes in beneficial ownership12 Dec 2024
  • Form 4Statement of changes in beneficial ownership9 Dec 2024
  • Form 4Statement of changes in beneficial ownership13 Dec 2023
  • Form 4Statement of changes in beneficial ownership7 Dec 2023
  • Form 4Statement of changes in beneficial ownership28 Nov 2023
  • Form 4Statement of changes in beneficial ownership24 Aug 2023
  • Form 4Statement of changes in beneficial ownership14 Dec 2022
  • Form 4Statement of changes in beneficial ownership7 Dec 2022
  • Form 4Statement of changes in beneficial ownership29 Nov 2022

Bingham Betsy B(21)

  • Form 4Statement of changes in beneficial ownership22 Apr
  • Form 4Statement of changes in beneficial ownership10 Apr
  • Form 4Statement of changes in beneficial ownership10 Apr
  • Form 4/AStatement of changes in beneficial ownership (amendment)13 Apr
  • Form 4Statement of changes in beneficial ownership23 Dec 2025
  • Form 4Statement of changes in beneficial ownership23 Apr 2025
  • Form 4Statement of changes in beneficial ownership23 Apr 2025
  • Form 4Statement of changes in beneficial ownership16 Jan 2025
  • Form 4Statement of changes in beneficial ownership17 Oct 2024
  • Form 4Statement of changes in beneficial ownership16 Jul 2024

HILZINGER MATTHEW F(20)

  • Form 4Statement of changes in beneficial ownership10 Apr
  • Form 4Statement of changes in beneficial ownership23 Apr 2025
  • Form 4Statement of changes in beneficial ownership17 Apr 2024
  • Form 4Statement of changes in beneficial ownership24 May 2023
  • Form 4Statement of changes in beneficial ownership11 Apr 2022
  • Form 4Statement of changes in beneficial ownership27 Jan 2022
  • Form 4Statement of changes in beneficial ownership18 Oct 2021
  • Form 4Statement of changes in beneficial ownership16 Jul 2021
  • Form 4Statement of changes in beneficial ownership19 Apr 2021
  • Form 4Statement of changes in beneficial ownership12 Apr 2021

BAGATELLE WARREN D(18)

  • Form 4Statement of changes in beneficial ownership25 Jun 2007
  • Form 4Statement of changes in beneficial ownership29 Mar 2007
  • Form 4Statement of changes in beneficial ownership5 May 2006
  • Form 4Statement of changes in beneficial ownership19 Apr 2006
  • Form 4Statement of changes in beneficial ownership30 Mar 2006
  • Form 4/AStatement of changes in beneficial ownership (amendment)23 May 2006
  • Form 4Statement of changes in beneficial ownership21 Dec 2005
  • Form 5Annual statement of beneficial ownership13 Dec 2005
  • Form 4Statement of changes in beneficial ownership4 Oct 2005
  • Form 4Statement of changes in beneficial ownership22 Jun 2005

GERSON JAMES D(16)

  • Form 4Statement of changes in beneficial ownership31 Mar 2014
  • Form 4Statement of changes in beneficial ownership19 Apr 2013
  • Form 4Statement of changes in beneficial ownership1 Apr 2013
  • Form 4Statement of changes in beneficial ownership9 Apr 2012
  • Form 4Statement of changes in beneficial ownership4 Oct 2011
  • Form 4Statement of changes in beneficial ownership25 Apr 2011
  • Form 4Statement of changes in beneficial ownership29 Mar 2010
  • Form 4Statement of changes in beneficial ownership30 Mar 2009
  • Form 4Statement of changes in beneficial ownership8 Apr 2008
  • Form 4Statement of changes in beneficial ownership29 Mar 2007

LAWSON WILLIAM A(16)

  • Form 4Statement of changes in beneficial ownership6 Apr 2015
  • Form 4Statement of changes in beneficial ownership31 Mar 2014
  • Form 4Statement of changes in beneficial ownership1 Apr 2013
  • Form 4Statement of changes in beneficial ownership9 Apr 2012
  • Form 4Statement of changes in beneficial ownership25 Apr 2011
  • Form 4Statement of changes in beneficial ownership29 Mar 2010
  • Form 4Statement of changes in beneficial ownership30 Mar 2009
  • Form 5Annual statement of beneficial ownership12 Dec 2008
  • Form 4Statement of changes in beneficial ownership10 Oct 2008
  • Form 4Statement of changes in beneficial ownership8 Apr 2008

Leo Anthony(16)

  • Form 4Statement of changes in beneficial ownership13 Dec 2023
  • Form 4Statement of changes in beneficial ownership7 Dec 2023
  • Form 4Statement of changes in beneficial ownership28 Nov 2023
  • Form 4Statement of changes in beneficial ownership24 Aug 2023
  • Form 4Statement of changes in beneficial ownership14 Dec 2022
  • Form 4Statement of changes in beneficial ownership7 Dec 2022
  • Form 4Statement of changes in beneficial ownership29 Nov 2022
  • Form 4Statement of changes in beneficial ownership26 Aug 2022
  • Form 4Statement of changes in beneficial ownership14 Dec 2021
  • Form 4Statement of changes in beneficial ownership29 Nov 2021

Dolger Joshua(16)

  • Form 4Statement of changes in beneficial ownership2 Jan
  • Form 4Statement of changes in beneficial ownership15 Dec 2025
  • Form 4Statement of changes in beneficial ownership9 Dec 2025
  • Form 4Statement of changes in beneficial ownership1 Dec 2025
  • Form 4Statement of changes in beneficial ownership2 Jan 2025
  • Form 4Statement of changes in beneficial ownership12 Dec 2024
  • Form 4Statement of changes in beneficial ownership9 Dec 2024
  • Form 4Statement of changes in beneficial ownership27 Jun 2024
  • Form 4Statement of changes in beneficial ownership21 May 2024
  • Form 4Statement of changes in beneficial ownership13 Dec 2023

BRDAR DANIEL(15)

  • Form 4Statement of changes in beneficial ownership20 Jan 2011
  • Form 4Statement of changes in beneficial ownership21 Apr 2010
  • Form 4Statement of changes in beneficial ownership29 Mar 2010
  • Form 4Statement of changes in beneficial ownership31 Mar 2009
  • Form 4/APRIMARY DOCUMENT2 Jun 2009
  • Form 4Statement of changes in beneficial ownership20 Mar 2009
  • Form 4Statement of changes in beneficial ownership29 Feb 2008
  • Form 4Statement of changes in beneficial ownership1 Feb 2008
  • Form 4Statement of changes in beneficial ownership15 Mar 2007
  • Form 4Statement of changes in beneficial ownership25 Jan 2006

Groobey John Christopher(15)

  • Form 4Statement of changes in beneficial ownership11 Apr 2022
  • Form 4Statement of changes in beneficial ownership27 Jan 2022
  • Form 4Statement of changes in beneficial ownership18 Oct 2021
  • Form 4Statement of changes in beneficial ownership16 Jul 2021
  • Form 4Statement of changes in beneficial ownership19 Apr 2021
  • Form 4Statement of changes in beneficial ownership12 Apr 2021
  • Form 4Statement of changes in beneficial ownership20 Oct 2020
  • Form 4Statement of changes in beneficial ownership20 Oct 2020
  • Form 4Statement of changes in beneficial ownership20 Jan 2021
  • Form 4/AStatement of changes in beneficial ownership (amendment)20 Jan 2021

KEMPNER THOMAS L(13)

  • Form 4Statement of changes in beneficial ownership28 Jun 2010
  • Form 4Statement of changes in beneficial ownership30 Mar 2010
  • Form 4Statement of changes in beneficial ownership30 Mar 2009
  • Form 4Statement of changes in beneficial ownership7 Nov 2008
  • Form 4Statement of changes in beneficial ownership7 Nov 2008
  • Form 4Statement of changes in beneficial ownership8 Apr 2008
  • Form 4Statement of changes in beneficial ownership5 Apr 2007
  • Form 4Statement of changes in beneficial ownership29 Mar 2007
  • Form 4/AStatement of changes in beneficial ownership (amendment)23 May 2006
  • Form 4Statement of changes in beneficial ownership30 Mar 2006

Arasimowicz Jennifer D(12)

  • Form 4Statement of changes in beneficial ownership7 Apr 2021
  • Form 4Statement of changes in beneficial ownership2 Mar 2021
  • Form 4Statement of changes in beneficial ownership27 Nov 2020
  • Form 4Statement of changes in beneficial ownership26 Aug 2020
  • Form 4Statement of changes in beneficial ownership9 Apr 2020
  • Form 4Statement of changes in beneficial ownership9 Apr 2019
  • Form 4Statement of changes in beneficial ownership11 Apr 2018
  • Form 4Statement of changes in beneficial ownership9 Apr 2018
  • Form 4Statement of changes in beneficial ownership2 Nov 2017
  • Form 3Initial statement of beneficial ownership10 Apr 2017

WEST TOGO D JR(11)

  • Form 4Statement of changes in beneficial ownership10 Apr 2017
  • Form 4Statement of changes in beneficial ownership11 Apr 2016
  • Form 4Statement of changes in beneficial ownership6 Apr 2015
  • Form 4Statement of changes in beneficial ownership31 Mar 2014
  • Form 4Statement of changes in beneficial ownership1 Apr 2013
  • Form 4Statement of changes in beneficial ownership9 Apr 2012
  • Form 4Statement of changes in beneficial ownership25 Apr 2011
  • Form 4Statement of changes in beneficial ownership29 Mar 2010
  • Form 4Statement of changes in beneficial ownership30 Mar 2009
  • Form 4Statement of changes in beneficial ownership8 Apr 2008

Bromley Richard A(11)

  • Form 4Statement of changes in beneficial ownership6 Apr 2015
  • Form 4Statement of changes in beneficial ownership31 Mar 2014
  • Form 4Statement of changes in beneficial ownership23 Apr 2013
  • Form 4Statement of changes in beneficial ownership1 Apr 2013
  • Form 4Statement of changes in beneficial ownership9 Apr 2012
  • Form 4Statement of changes in beneficial ownership25 Apr 2011
  • Form 4Statement of changes in beneficial ownership29 Mar 2010
  • Form 4Statement of changes in beneficial ownership30 Mar 2009
  • Form 4Statement of changes in beneficial ownership8 Apr 2008
  • Form 4Statement of changes in beneficial ownership18 Dec 2007

Feasel Mark(11)

  • Form 4Statement of changes in beneficial ownership2 Jan 2025
  • Form 4Statement of changes in beneficial ownership12 Dec 2024
  • Form 4Statement of changes in beneficial ownership9 Dec 2024
  • Form 4Statement of changes in beneficial ownership27 Mar 2024
  • Form 4Statement of changes in beneficial ownership13 Dec 2023
  • Form 4Statement of changes in beneficial ownership7 Dec 2023
  • Form 4Statement of changes in beneficial ownership27 Mar 2023
  • Form 4Statement of changes in beneficial ownership14 Dec 2022
  • Form 4Statement of changes in beneficial ownership7 Dec 2022
  • Form 4Statement of changes in beneficial ownership17 May 2022

MARU HANSRAJ C(10)

  • Form 4Statement of changes in beneficial ownership16 May 2006
  • Form 4Statement of changes in beneficial ownership25 Jan 2006
  • Form 4Statement of changes in beneficial ownership24 Jan 2006
  • Form 4Statement of changes in beneficial ownership28 Nov 2005
  • Form 4Statement of changes in beneficial ownership14 Nov 2005
  • Form 4Statement of changes in beneficial ownership25 Oct 2005
  • Form 4Statement of changes in beneficial ownership19 May 2005
  • Form 4PRIMARY DOCUMENT27 May 2004
  • Form 4PRIMARY DOCUMENT30 Apr 2004
  • Form 4PRIMARY DOCUMENT18 Jun 2003

LEITMAN JERRY D(10)

  • Form 4Statement of changes in beneficial ownership12 Apr 2007
  • Form 4Statement of changes in beneficial ownership21 Nov 2006
  • Form 4Statement of changes in beneficial ownership22 May 2006
  • Form 4Statement of changes in beneficial ownership25 Jan 2006
  • Form 4Statement of changes in beneficial ownership29 Nov 2005
  • Form 4Statement of changes in beneficial ownership20 May 2005
  • Form 4Statement of changes in beneficial ownership20 May 2005
  • Form 4PRIMARY DOCUMENT27 May 2004
  • Form 4PRIMARY DOCUMENT30 Apr 2004
  • Form 4PRIMARY DOCUMENT18 Jun 2003

PETTY GEORGE K(10)

  • Form 4Statement of changes in beneficial ownership25 Apr 2011
  • Form 4Statement of changes in beneficial ownership29 Mar 2010
  • Form 4Statement of changes in beneficial ownership30 Mar 2009
  • Form 4Statement of changes in beneficial ownership8 Apr 2008
  • Form 4Statement of changes in beneficial ownership29 Mar 2007
  • Form 4Statement of changes in beneficial ownership30 Mar 2006
  • Form 4/AStatement of changes in beneficial ownership (amendment)23 May 2006
  • Form 4Statement of changes in beneficial ownership21 Dec 2005
  • Form 4Statement of changes in beneficial ownership4 Oct 2005
  • Form 3PRIMARY DOCUMENT23 Dec 2003

Ludemann Bruce A(10)

  • Form 5Annual statement of beneficial ownership8 Dec 2009
  • Form 4/APRIMARY DOCUMENT2 Jun 2009
  • Form 4Statement of changes in beneficial ownership31 Mar 2009
  • Form 4Statement of changes in beneficial ownership20 Mar 2009
  • Form 5Annual statement of beneficial ownership12 Dec 2008
  • Form 4Statement of changes in beneficial ownership29 Feb 2008
  • Form 4Statement of changes in beneficial ownership1 Feb 2008
  • Form 4Statement of changes in beneficial ownership15 Mar 2007
  • Form 4Statement of changes in beneficial ownership19 Jul 2006
  • Form 3Initial statement of beneficial ownership19 Apr 2006

Achanta Shankar(8)

  • Form 4Statement of changes in beneficial ownership8 Oct
  • Form 4Statement of changes in beneficial ownership8 Jul
  • Form 4Statement of changes in beneficial ownership12 May
  • Form 4Statement of changes in beneficial ownership21 Apr
  • Form 4Statement of changes in beneficial ownership2 Jan
  • Form 4Statement of changes in beneficial ownership1 Dec 2025
  • Form 4Statement of changes in beneficial ownership12 May 2025
  • Form 3Initial statement of beneficial ownership10 Jan 2025

Sims Wilson Donna(7)

  • Form 4Statement of changes in beneficial ownership10 Apr
  • Form 4Statement of changes in beneficial ownership23 Apr 2025
  • Form 4Statement of changes in beneficial ownership17 Apr 2024
  • Form 4Statement of changes in beneficial ownership24 May 2023
  • Form 4Statement of changes in beneficial ownership11 Apr 2022
  • Form 3Initial statement of beneficial ownership17 Aug 2021
  • Form 4Statement of changes in beneficial ownership17 Aug 2021

EPSTEIN GLENN H(6)

  • Form 4Statement of changes in beneficial ownership8 Apr 2010
  • Form 4Statement of changes in beneficial ownership30 Mar 2009
  • Form 4Statement of changes in beneficial ownership9 Sep 2008
  • Form 4Statement of changes in beneficial ownership8 Apr 2008
  • Form 4Statement of changes in beneficial ownership18 Dec 2007
  • Form 3Initial statement of beneficial ownership24 Sep 2007

Livingston III Homer John(6)

  • Form 4Statement of changes in beneficial ownership19 Oct
  • Form 4Statement of changes in beneficial ownership15 Sep
  • Form 4Statement of changes in beneficial ownership20 Jul
  • Form 4Statement of changes in beneficial ownership16 Jul
  • Form 4Statement of changes in beneficial ownership15 Jun
  • Form 3Initial statement of beneficial ownership12 Jun

NOCK HERBERT T(5)

  • Form 4Statement of changes in beneficial ownership7 Sep 2005
  • Form 4Statement of changes in beneficial ownership16 May 2006
  • Form 4Statement of changes in beneficial ownership20 May 2005
  • Form 4Statement of changes in beneficial ownership31 Mar 2005
  • Form 4PRIMARY DOCUMENT30 Apr 2004

Jordan Tyrone Michael(5)

  • Form 4Statement of changes in beneficial ownership10 Apr
  • Form 4Statement of changes in beneficial ownership23 Apr 2025
  • Form 3Initial statement of beneficial ownership29 Apr 2024
  • Form 4Statement of changes in beneficial ownership29 Apr 2024
  • Form 4/AStatement of changes in beneficial ownership (amendment)23 Apr 2025

MURPHY CHARLES J(4)

  • Form 4Statement of changes in beneficial ownership25 Jun 2007
  • Form 4Statement of changes in beneficial ownership30 Mar 2006
  • Form 4Statement of changes in beneficial ownership21 Dec 2005
  • Form 4Statement of changes in beneficial ownership4 Oct 2005

CASTEN THOMAS R(3)

  • Form 4Statement of changes in beneficial ownership17 May 2006
  • Form 4Statement of changes in beneficial ownership21 Dec 2005
  • Form 4Statement of changes in beneficial ownership4 Oct 2005

POSCO ENERGY CO, LTD(3)

  • Form 4PRIMARY DOCUMENT2 May 2012
  • Form 3PRIMARY DOCUMENT2 May 2012
  • Form 3PRIMARY DOCUMENT2 Nov 2009

Von Branconi Christof Franz Salvador(2)

  • Form 4Statement of changes in beneficial ownership28 Oct 2009
  • Form 3Initial statement of beneficial ownership20 Dec 2007

Browning Paul F(2)

  • Form 4Statement of changes in beneficial ownership11 Apr 2016
  • Form 3Initial statement of beneficial ownership14 Aug 2015

Lampe-Onnerud Christina(2)

  • Form 4Statement of changes in beneficial ownership27 Nov 2018
  • Form 3Initial statement of beneficial ownership19 Nov 2018

Hopper Peter B.(2)

  • Form 4Statement of changes in beneficial ownership30 Oct
  • Form 3Initial statement of beneficial ownership30 Oct

Schreiber Amanda Justine(2)

  • Form 4Statement of changes in beneficial ownership27 Jan
  • Form 3Initial statement of beneficial ownership23 Jan

LOEB INVESTORS CO LXXV(1)

  • Form 4PRIMARY DOCUMENT24 Jun 2003

Bode Michael(1)

  • Form 4PRIMARY DOCUMENT7 Jan 2008

Sotos Christopher S(1)

  • Form 3Initial statement of beneficial ownership1 Oct 2014

Hill Michael James(1)

  • Form 3Initial statement of beneficial ownership16 May 2025

Latino Matthew O'Neil(1)

  • Form 3Initial statement of beneficial ownership16 Oct

≥5% Ownership

BlackRock Inc.(20)

  • SC 13G/AFuelcell Energy Inc26 Jan 2024
  • SC 13G/AFuelcell Energy Inc5 May 2023
  • SC 13G/AFuelcell Energy Inc24 Jan 2023
  • SC 13G/AFuelcell Energy Inc9 May 2022
  • SC 13G/AFuelcell Energy Inc1 Feb 2022
  • SC 13G/AFuelcell Energy Inc7 May 2021
  • SC 13GFuelcell Energy Inc2 Feb 2021
  • SC 13G/AFuelcell Energy Inc8 Mar 2019
  • SC 13GFuelcell Energy Inc8 Feb 2019
  • SC 13G/AFuelcell Energy Inc8 Feb 2017

VANGUARD GROUP INC(10)

  • SC 13G/AFuelcell Energy Inc26 Mar
  • SC 13GFuelcell Energy Inc30 Jan
  • SC 13G/AFuelcell Energy Inc29 Jul 2025
  • SC 13GFuelcell Energy Inc30 Apr 2025
  • SC 13G/AFuelcell Energy Inc12 Nov 2024
  • SC 13G/AFuelcell Energy Inc4 Nov 2024
  • SC 13G/AFuelcell Energy Inc13 Feb 2024
  • SC 13G/AFuelcell Energy Inc9 Feb 2023
  • SC 13G/AFuelcell Energy Inc9 Mar 2022
  • SC 13GFuelcell Energy Inc10 Feb 2022

WELLINGTON MANAGEMENT CO LLP(6)

  • SC 13G/AFuelcell Energy Inc10 Jan 2007
  • SC 13G/AFuelcell Energy Inc13 Nov 2006
  • SC 13G/AFuelcell Energy Inc14 Feb 2006
  • SC 13G/AFuelcell Energy Inc14 Feb 2005
  • SC 13GFuelcell Energy Inc12 Feb 2004
  • SC 13G/AFuelcell Energy Inc10 Feb 2004

Invesco Ltd.(5)

  • SC 13G/AFuelcell Energy Inc8 Feb 2011
  • SC 13G/AFuelcell Energy Inc12 Feb 2010
  • SC 13G/AFuelcell Energy Inc17 Feb 2009
  • SC 13G/AFuelcell Energy Inc13 Feb 2008
  • SC 13GFuelcell Energy Inc14 Feb 2007

Legal & General Group Plc(4)

  • SC 13G/AFuelcell Energy Inc14 Aug
  • SC 13GFuelcell Energy Inc11 Feb
  • SC 13GFuelcell Energy Inc11 Aug 2025
  • SC 13GFuelcell Energy Inc13 Feb 2025

TCW GROUP INC(3)

  • SC 13G/AFuelcell Energy Inc9 Feb 2009
  • SC 13G/AFuelcell Energy Inc11 Feb 2008
  • SC 13GFuelcell Energy Inc12 Feb 2007

HEARTLAND ADVISORS INC(3)

  • SC 13G/AFuelcell Energy Inc10 Feb 2011
  • SC 13G/AFuelcell Energy Inc10 Feb 2011
  • SC 13GFuelcell Energy Inc10 Feb 2010

CAPITAL VENTURES INTERNATIONAL /E9/(3)

  • SC 13G/AFuelcell Energy Inc13 Feb 2013
  • SC 13G/AFuelcell Energy Inc14 Feb 2012
  • SC 13GFuelcell Energy Inc19 Jan 2011

Rosen Lawrence I(3)

  • SC 13G/AFuelcell Energy Inc22 Feb 2021
  • SC 13G/AFuelcell Energy Inc13 Jul 2020
  • SC 13GFuelcell Energy Inc10 Feb 2020

BALLENTINE CAPITAL MANAGEMENT INC(2)

  • SC 13G/AFuelcell Energy Inc12 Feb 2001
  • SC 13GFuelcell Energy Inc7 Sep 2000

MERUELO ALEX(2)

  • SC 13GFuelcell Energy Inc15 Oct
  • SC 13GFuelcell Energy Inc13 Jul

LOEB INVESTORS CO LXXV(2)

  • SC 13D/AFuelcell Energy Inc30 Oct 2000
  • SC 13D/AFuelcell Energy Inc6 Jun 2000

LEVIN CAPITAL STRATEGIES, L.P.(2)

  • SC 13G/AFuelcell Energy Inc21 May 2018
  • SC 13GFuelcell Energy Inc10 May 2018

POSCO Power CORP(2)

  • SC 13G/AFuelcell Energy Inc2 Nov 2009
  • SC 13GFuelcell Energy Inc27 Feb 2007

Hudson Bay Capital Management LP(2)

  • SC 13G/AFuelcell Energy Inc31 Jan 2019
  • SC 13GFuelcell Energy Inc2 Feb 2018

DnB Asset Management AS(2)

  • SC 13G/AFuelcell Energy Inc5 Feb 2013
  • SC 13GFuelcell Energy Inc8 Feb 2012

CVI Investments, Inc.(2)

  • SC 13G/AFuelcell Energy Inc16 Feb 2021
  • SC 13GFuelcell Energy Inc1 Oct 2020

BlackRock, Inc.(2)

  • SC 13GFuelcell Energy Inc28 Jul
  • SC 13GFuelcell Energy Inc17 Jul 2025

NEVIS CAPITAL MANAGEMENT INC /ADV(1)

  • SC 13GEnergy Research Corp /Ny/28 Apr 1998

PG&E ENTERPRISES(1)

  • SC 13G/AEnergy Research Corp /Ny/14 Feb 1997

GERSON JAMES D(1)

  • SC 13GEnergy Research Corp /Ny/12 Feb 1999

NRG ENERGY, INC.(1)

  • SC 13DFuelcell Energy Inc11 Aug 2014

Citadel Securities GP LLC(1)

  • SC 13GFuelcell Energy Inc4 Aug

VANGUARD CAPITAL MANAGEMENT LLC(1)

  • SC 13GFuelcell Energy Inc30 Oct