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IOSP US​

Innospec Inc.(IOSP US)

$98.64-0.030.03%Ext:$99.12+0.480.49%(Market Closed · 23:55:50 UTC)

Overview

ProfileEntity Structure

Documents

SEC Filings
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Financials & Metrics

FinancialsChartingShort InterestEmployees

SEC Filings by Owner

Insider Ownership

Williams Patrick(97)

  • 4Statement of changes in beneficial ownership5 Oct
  • 4Statement of changes in beneficial ownership3 Mar
  • 4Statement of changes in beneficial ownership25 Feb
  • 4Statement of changes in beneficial ownership18 Feb
  • 4Statement of changes in beneficial ownership4 Mar 2025
  • 4Statement of changes in beneficial ownership27 Feb 2025
  • 4Statement of changes in beneficial ownership25 Feb 2025
  • 4Statement of changes in beneficial ownership1 Mar 2024
  • 4Statement of changes in beneficial ownership28 Feb 2024
  • 4Statement of changes in beneficial ownership27 Feb 2024

HESSNER CATHERINE(77)

  • 4Statement of changes in beneficial ownership13 May 2021
  • 4Statement of changes in beneficial ownership11 May 2021
  • 4Statement of changes in beneficial ownership24 Feb 2021
  • 4/AStatement of changes in beneficial ownership (amendment)2 Mar 2021
  • 4Statement of changes in beneficial ownership4 Jun 2020
  • 4Statement of changes in beneficial ownership26 Feb 2020
  • 4Statement of changes in beneficial ownership13 Nov 2019
  • 4Statement of changes in beneficial ownership5 Jun 2019
  • 4Statement of changes in beneficial ownership27 Feb 2019
  • 4Statement of changes in beneficial ownership25 Feb 2019

Cleminson Ian(68)

  • 4Statement of changes in beneficial ownership5 Oct
  • 4Statement of changes in beneficial ownership3 Mar
  • 4/AStatement of changes in beneficial ownership (amendment)6 Mar
  • 4Statement of changes in beneficial ownership25 Feb
  • 4Statement of changes in beneficial ownership18 Feb
  • 4Statement of changes in beneficial ownership4 Mar 2025
  • 4Statement of changes in beneficial ownership27 Feb 2025
  • 4Statement of changes in beneficial ownership25 Feb 2025
  • 4Statement of changes in beneficial ownership27 Aug 2024
  • 4Statement of changes in beneficial ownership1 Mar 2024

BOON PHILIP JOHN(62)

  • 4Statement of changes in beneficial ownership24 Feb 2025
  • 4Statement of changes in beneficial ownership28 Feb 2024
  • 4Statement of changes in beneficial ownership26 Feb 2024
  • 4Statement of changes in beneficial ownership27 Feb 2023
  • 4Statement of changes in beneficial ownership1 Mar 2023
  • 4Statement of changes in beneficial ownership9 Mar 2023
  • 4Statement of changes in beneficial ownership22 Feb 2023
  • 4Statement of changes in beneficial ownership1 Mar 2022
  • 4Statement of changes in beneficial ownership24 Feb 2022
  • 4Statement of changes in beneficial ownership16 Mar 2021

MCROBBIE IAN MALCOLM(56)

  • 4Statement of changes in beneficial ownership5 Oct
  • 4Statement of changes in beneficial ownership25 Feb
  • 4Statement of changes in beneficial ownership27 Feb 2025
  • 4Statement of changes in beneficial ownership28 Feb 2024
  • 4Statement of changes in beneficial ownership1 Mar 2023
  • 4Statement of changes in beneficial ownership24 Feb 2022
  • 4Statement of changes in beneficial ownership24 Nov 2021
  • 4Statement of changes in beneficial ownership24 Feb 2021
  • 4/AStatement of changes in beneficial ownership (amendment)2 Mar 2021
  • 4Statement of changes in beneficial ownership1 Jun 2018

Watt Brian(50)

  • 4Statement of changes in beneficial ownership13 May 2021
  • 4Statement of changes in beneficial ownership11 May 2021
  • 4Statement of changes in beneficial ownership24 Feb 2021
  • 4/AStatement of changes in beneficial ownership (amendment)2 Mar 2021
  • 4Statement of changes in beneficial ownership26 Feb 2020
  • 4Statement of changes in beneficial ownership21 Nov 2019
  • 4Statement of changes in beneficial ownership23 Aug 2019
  • 4Statement of changes in beneficial ownership31 May 2019
  • 4/AStatement of changes in beneficial ownership (amendment)5 Mar 2019
  • 4Statement of changes in beneficial ownership27 Feb 2019

HALE MARTIN DEMORA(45)

  • 4Statement of changes in beneficial ownership24 Feb 2016
  • 4/AStatement of changes in beneficial ownership (amendment)8 Dec 2015
  • 4Statement of changes in beneficial ownership8 Dec 2015
  • 4Statement of changes in beneficial ownership17 Nov 2015
  • 4Statement of changes in beneficial ownership4 Mar 2015
  • 4Statement of changes in beneficial ownership24 Feb 2015
  • 4Statement of changes in beneficial ownership28 Jan 2015
  • 4Statement of changes in beneficial ownership22 Dec 2014
  • 4Statement of changes in beneficial ownership18 Feb 2014
  • 4/AStatement of changes in beneficial ownership (amendment)12 Dec 2013

Aldous Hugh(43)

  • 4Statement of changes in beneficial ownership26 Feb 2020
  • 5Annual statement of beneficial ownership22 Jan 2020
  • 4Statement of changes in beneficial ownership10 Dec 2019
  • 4Statement of changes in beneficial ownership30 May 2019
  • 4Statement of changes in beneficial ownership27 Feb 2019
  • 4Statement of changes in beneficial ownership23 May 2018
  • 4Statement of changes in beneficial ownership23 Feb 2018
  • 4Statement of changes in beneficial ownership23 May 2017
  • 4Statement of changes in beneficial ownership23 Feb 2017
  • 4Statement of changes in beneficial ownership22 Nov 2016

JENNINGS PAUL WILLIS(39)

  • 4Statement of changes in beneficial ownership20 May 2009
  • 4Statement of changes in beneficial ownership19 May 2009
  • 4Statement of changes in beneficial ownership18 May 2009
  • 4Statement of changes in beneficial ownership14 May 2009
  • 4Statement of changes in beneficial ownership13 May 2009
  • 4Statement of changes in beneficial ownership26 Mar 2009
  • 4Statement of changes in beneficial ownership2 Mar 2009
  • 4/AAMENDED FORM 4 - PWJ - AMENDED SHAREHOLDING4 Sep 2008
  • 4/AFORM 4A - PAUL JENNINGS8 May 2008
  • 4Statement of changes in beneficial ownership8 May 2008

Blackmore Milton C(39)

  • 4/AStatement of changes in beneficial ownership (amendment)6 Mar
  • 4Statement of changes in beneficial ownership3 Mar
  • 4Statement of changes in beneficial ownership24 Feb
  • 4Statement of changes in beneficial ownership27 Feb 2025
  • 4Statement of changes in beneficial ownership24 Feb 2025
  • 4Statement of changes in beneficial ownership14 Nov 2024
  • 4Statement of changes in beneficial ownership28 Feb 2024
  • 4Statement of changes in beneficial ownership26 Feb 2024
  • 4Statement of changes in beneficial ownership2 Mar 2023
  • 4Statement of changes in beneficial ownership1 Mar 2022

PALLER Robert I(35)

  • 4Statement of changes in beneficial ownership28 Feb 2024
  • 4Statement of changes in beneficial ownership13 Nov 2023
  • 4Statement of changes in beneficial ownership2 Mar 2023
  • 4Statement of changes in beneficial ownership21 Nov 2022
  • 4Statement of changes in beneficial ownership15 Mar 2022
  • 4Statement of changes in beneficial ownership1 Mar 2022
  • 4Statement of changes in beneficial ownership24 Feb 2022
  • 4Statement of changes in beneficial ownership12 Nov 2021
  • 4Statement of changes in beneficial ownership2 Mar 2021
  • 4Statement of changes in beneficial ownership24 Feb 2021

TONTINE CAPITAL PARTNERS L P(33)

  • 4Statement of changes in beneficial ownership28 Jun 2011
  • 4Statement of changes in beneficial ownership16 Jun 2011
  • 4Statement of changes in beneficial ownership9 Jun 2011
  • 4Statement of changes in beneficial ownership18 Apr 2011
  • 4Statement of changes in beneficial ownership7 Feb 2011
  • 4Statement of changes in beneficial ownership3 Dec 2010
  • 4Statement of changes in beneficial ownership6 Oct 2010
  • 4Statement of changes in beneficial ownership10 Sep 2010
  • 4Statement of changes in beneficial ownership9 Aug 2010
  • 4Statement of changes in beneficial ownership4 May 2010

BEW ROBERT ERNEST(28)

  • 4Statement of changes in beneficial ownership31 Aug 2012
  • 4Statement of changes in beneficial ownership24 May 2012
  • 4Statement of changes in beneficial ownership14 May 2012
  • 4Statement of changes in beneficial ownership7 Mar 2012
  • 4Statement of changes in beneficial ownership24 Feb 2012
  • 4Statement of changes in beneficial ownership6 Jul 2011
  • 4Statement of changes in beneficial ownership23 Feb 2011
  • 4Statement of changes in beneficial ownership6 Jul 2010
  • 4Statement of changes in beneficial ownership1 Apr 2010
  • 4Statement of changes in beneficial ownership19 Feb 2010

PADFIELD Larry(27)

  • 4Statement of changes in beneficial ownership3 Mar
  • 4/AStatement of changes in beneficial ownership (amendment)6 Mar
  • 4Statement of changes in beneficial ownership24 Feb
  • 4Statement of changes in beneficial ownership27 Feb 2025
  • 4Statement of changes in beneficial ownership25 Feb 2025
  • 4Statement of changes in beneficial ownership28 Feb 2024
  • 4Statement of changes in beneficial ownership15 Nov 2023
  • 4Statement of changes in beneficial ownership16 May 2023
  • 4Statement of changes in beneficial ownership2 Mar 2023
  • 4Statement of changes in beneficial ownership1 Mar 2022

Jones David B.(27)

  • 4Statement of changes in beneficial ownership5 Oct
  • 4Statement of changes in beneficial ownership3 Mar
  • 4Statement of changes in beneficial ownership25 Feb
  • 4Statement of changes in beneficial ownership18 Feb
  • 4Statement of changes in beneficial ownership27 Feb 2025
  • 4Statement of changes in beneficial ownership24 Feb 2025
  • 4Statement of changes in beneficial ownership6 Mar 2024
  • 4Statement of changes in beneficial ownership28 Feb 2024
  • 4Statement of changes in beneficial ownership23 Feb 2024
  • 4Statement of changes in beneficial ownership20 Feb 2024

BRACEWELL Mark(25)

  • 4Statement of changes in beneficial ownership9 Dec 2013
  • 4/AStatement of changes in beneficial ownership (amendment)9 Jan 2014
  • 4Statement of changes in beneficial ownership23 May 2013
  • 4/AStatement of changes in beneficial ownership (amendment)13 May 2013
  • 4Statement of changes in beneficial ownership10 May 2013
  • 4Statement of changes in beneficial ownership22 Feb 2013
  • 4Statement of changes in beneficial ownership19 Feb 2013
  • 4Statement of changes in beneficial ownership20 Aug 2012
  • 4/AStatement of changes in beneficial ownership (amendment)15 Aug 2012
  • 4/AStatement of changes in beneficial ownership (amendment)29 May 2012

Curran Philip(25)

  • 4Statement of changes in beneficial ownership28 Feb 2020
  • 4Statement of changes in beneficial ownership5 Jun 2019
  • 4/AStatement of changes in beneficial ownership (amendment)1 Mar 2019
  • 4Statement of changes in beneficial ownership27 Feb 2019
  • 4Statement of changes in beneficial ownership27 Feb 2019
  • 4Statement of changes in beneficial ownership12 Jun 2018
  • 4Statement of changes in beneficial ownership15 May 2018
  • 4Statement of changes in beneficial ownership16 Mar 2018
  • 4Statement of changes in beneficial ownership9 Mar 2018
  • 4Statement of changes in beneficial ownership23 Feb 2018

ROESER Joachim(24)

  • 4Statement of changes in beneficial ownership26 Feb 2020
  • 4Statement of changes in beneficial ownership27 Feb 2019
  • 4Statement of changes in beneficial ownership23 Feb 2018
  • 4Statement of changes in beneficial ownership1 Dec 2017
  • 4Statement of changes in beneficial ownership23 Feb 2017
  • 4Statement of changes in beneficial ownership16 Nov 2016
  • 4Statement of changes in beneficial ownership24 Feb 2016
  • 4Statement of changes in beneficial ownership19 May 2015
  • 4Statement of changes in beneficial ownership24 Feb 2015
  • 4Statement of changes in beneficial ownership18 Feb 2014

Williams David Earl(24)

  • 4Statement of changes in beneficial ownership25 May 2018
  • 4Statement of changes in beneficial ownership26 Feb 2018
  • 4Statement of changes in beneficial ownership27 Feb 2017
  • 4Statement of changes in beneficial ownership23 Feb 2017
  • 4Statement of changes in beneficial ownership24 Feb 2016
  • 4/AStatement of changes in beneficial ownership (amendment)19 Mar 2015
  • 4Statement of changes in beneficial ownership12 Mar 2015
  • 4Statement of changes in beneficial ownership24 Feb 2015
  • 4Statement of changes in beneficial ownership25 Feb 2015
  • 4Statement of changes in beneficial ownership9 Jun 2014

Hartley Andrew(23)

  • 4Statement of changes in beneficial ownership7 Mar 2012
  • 4Statement of changes in beneficial ownership25 Nov 2011
  • 4Statement of changes in beneficial ownership16 Mar 2011
  • 4/AFORM 4 - AH16 Mar 2011
  • 4Statement of changes in beneficial ownership7 Mar 2011
  • 4/AFORM 4 - AH13 May 2011
  • 4Statement of changes in beneficial ownership2 Mar 2011
  • 4Statement of changes in beneficial ownership28 Feb 2011
  • 4Statement of changes in beneficial ownership23 Feb 2011
  • 4Statement of changes in beneficial ownership5 Mar 2010

LANDLESS DAVID(23)

  • 4/AStatement of changes in beneficial ownership (amendment)6 Mar
  • 4Statement of changes in beneficial ownership3 Mar
  • 4Statement of changes in beneficial ownership24 Feb
  • 4Statement of changes in beneficial ownership27 Feb 2025
  • 4Statement of changes in beneficial ownership25 Feb 2025
  • 4Statement of changes in beneficial ownership28 Feb 2024
  • 4Statement of changes in beneficial ownership23 Feb 2024
  • 4Statement of changes in beneficial ownership2 Mar 2023
  • 4Statement of changes in beneficial ownership27 Feb 2023
  • 4Statement of changes in beneficial ownership1 Mar 2022

GENDELL JEFFREY L ET AL(20)

  • 4Statement of changes in beneficial ownership28 Jun 2011
  • 4Statement of changes in beneficial ownership16 Jun 2011
  • 4Statement of changes in beneficial ownership9 Jun 2011
  • 4Statement of changes in beneficial ownership18 Apr 2011
  • 4Statement of changes in beneficial ownership7 Feb 2011
  • 4Statement of changes in beneficial ownership3 Dec 2010
  • 4Statement of changes in beneficial ownership6 Oct 2010
  • 4Statement of changes in beneficial ownership10 Sep 2010
  • 4Statement of changes in beneficial ownership9 Aug 2010
  • 4Statement of changes in beneficial ownership4 May 2010

BARNES CORBIN(18)

  • 4Statement of changes in beneficial ownership5 Oct
  • 4Statement of changes in beneficial ownership3 Mar
  • 4Statement of changes in beneficial ownership25 Feb
  • 4Statement of changes in beneficial ownership18 Feb
  • 5Annual statement of beneficial ownership17 Feb
  • 4Statement of changes in beneficial ownership15 May 2025
  • 4Statement of changes in beneficial ownership26 Feb 2025
  • 4Statement of changes in beneficial ownership27 Feb 2025
  • 4Statement of changes in beneficial ownership24 Feb 2025
  • 4Statement of changes in beneficial ownership30 Jan 2025

SHONE RICHARD TUDOR(17)

  • 4Statement of changes in beneficial ownership19 May 2008
  • 4Statement of changes in beneficial ownership24 May 2007
  • 4Statement of changes in beneficial ownership22 May 2007
  • 4Statement of changes in beneficial ownership12 Mar 2007
  • 4Statement of changes in beneficial ownership16 Nov 2006
  • 4Statement of changes in beneficial ownership22 May 2006
  • 4Statement of changes in beneficial ownership24 Mar 2006
  • 4Statement of changes in beneficial ownership22 Aug 2005
  • 4Statement of changes in beneficial ownership14 Mar 2005
  • 4Statement of changes in beneficial ownership24 Feb 2005

TONTINE CAPITAL OVERSEAS MASTER FUND II, L.P.(17)

  • 4Statement of changes in beneficial ownership28 Jun 2011
  • 4Statement of changes in beneficial ownership16 Jun 2011
  • 4Statement of changes in beneficial ownership9 Jun 2011
  • 4Statement of changes in beneficial ownership18 Apr 2011
  • 4Statement of changes in beneficial ownership7 Feb 2011
  • 4Statement of changes in beneficial ownership3 Dec 2010
  • 4Statement of changes in beneficial ownership6 Oct 2010
  • 4Statement of changes in beneficial ownership10 Sep 2010
  • 4Statement of changes in beneficial ownership9 Aug 2010
  • 4Statement of changes in beneficial ownership4 May 2010

TONTINE ASSET ASSOCIATES, L.L.C.(17)

  • 4Statement of changes in beneficial ownership28 Jun 2011
  • 4Statement of changes in beneficial ownership16 Jun 2011
  • 4Statement of changes in beneficial ownership9 Jun 2011
  • 4Statement of changes in beneficial ownership18 Apr 2011
  • 4Statement of changes in beneficial ownership7 Feb 2011
  • 4Statement of changes in beneficial ownership3 Dec 2010
  • 4Statement of changes in beneficial ownership6 Oct 2010
  • 4Statement of changes in beneficial ownership10 Sep 2010
  • 4Statement of changes in beneficial ownership9 Aug 2010
  • 4Statement of changes in beneficial ownership4 May 2010

HALE CHARLES M(16)

  • 4Statement of changes in beneficial ownership7 Mar 2008
  • 4Statement of changes in beneficial ownership31 Aug 2007
  • 4/AFORM 4A - C HALE - AUG 31, 200710 Sep 2007
  • 4Statement of changes in beneficial ownership9 Jul 2007
  • 4Statement of changes in beneficial ownership22 Feb 2007
  • 4Statement of changes in beneficial ownership5 Dec 2006
  • 4Statement of changes in beneficial ownership4 Dec 2006
  • 4Statement of changes in beneficial ownership16 Aug 2006
  • 4Statement of changes in beneficial ownership5 Jul 2006
  • 4Statement of changes in beneficial ownership14 Feb 2006

KERRISON DENNIS GRAHAM JOHN(15)

  • 4/AFORM 4A2 - D KERRISON - 4 MARCH 200514 Mar 2005
  • 4/AFORM 4A - D KERRISON - 4 MARCH 20057 Mar 2005
  • 4Statement of changes in beneficial ownership7 Mar 2005
  • 4Statement of changes in beneficial ownership4 Mar 2005
  • 4Statement of changes in beneficial ownership28 Feb 2005
  • 4Statement of changes in beneficial ownership24 Feb 2005
  • 4Statement of changes in beneficial ownership22 Feb 2005
  • 4Statement of changes in beneficial ownership7 Feb 2005
  • 5Annual statement of beneficial ownership14 Jan 2005
  • 4Statement of changes in beneficial ownership8 Nov 2004

TONTINE CAPITAL MANAGEMENT LLC(15)

  • 4Statement of changes in beneficial ownership28 Jun 2011
  • 4Statement of changes in beneficial ownership16 Jun 2011
  • 4Statement of changes in beneficial ownership9 Jun 2011
  • 4Statement of changes in beneficial ownership18 Apr 2011
  • 4Statement of changes in beneficial ownership7 Feb 2011
  • 4Statement of changes in beneficial ownership3 Dec 2010
  • 4Statement of changes in beneficial ownership6 Oct 2010
  • 4Statement of changes in beneficial ownership10 Sep 2010
  • 4Statement of changes in beneficial ownership9 Aug 2010
  • 4Statement of changes in beneficial ownership4 May 2010

GRIFFIN HARDY LOUIS III(15)

  • 4Statement of changes in beneficial ownership5 Oct
  • 4Statement of changes in beneficial ownership3 Mar
  • 4Statement of changes in beneficial ownership25 Feb
  • 4Statement of changes in beneficial ownership18 Feb
  • 4Statement of changes in beneficial ownership15 May 2025
  • 4Statement of changes in beneficial ownership27 Feb 2025
  • 4Statement of changes in beneficial ownership25 Feb 2025
  • 4Statement of changes in beneficial ownership30 Jan 2025
  • 4Statement of changes in beneficial ownership22 May 2024
  • 4Statement of changes in beneficial ownership16 May 2024

PUCKRIDGE JAMES MARTIN COMBE(14)

  • 4Statement of changes in beneficial ownership19 Feb 2010
  • 4Statement of changes in beneficial ownership7 Jul 2009
  • 4Statement of changes in beneficial ownership26 Mar 2009
  • 4Statement of changes in beneficial ownership8 Jul 2008
  • 4Statement of changes in beneficial ownership7 Mar 2008
  • 4Statement of changes in beneficial ownership13 Nov 2007
  • 4Statement of changes in beneficial ownership9 Jul 2007
  • 4Statement of changes in beneficial ownership22 Feb 2007
  • 4Statement of changes in beneficial ownership5 Jul 2006
  • 4Statement of changes in beneficial ownership14 Feb 2006

Poccia Claudia(14)

  • 4/AStatement of changes in beneficial ownership (amendment)6 Mar
  • 4Statement of changes in beneficial ownership3 Mar
  • 4Statement of changes in beneficial ownership24 Feb
  • 4Statement of changes in beneficial ownership27 Feb 2025
  • 4Statement of changes in beneficial ownership25 Nov 2024
  • 4Statement of changes in beneficial ownership28 Feb 2024
  • 4Statement of changes in beneficial ownership14 Aug 2023
  • 4Statement of changes in beneficial ownership24 May 2023
  • 4Statement of changes in beneficial ownership2 Mar 2023
  • 4Statement of changes in beneficial ownership24 Feb 2022

PARRETTE LESLIE J(13)

  • 4Statement of changes in beneficial ownership24 Feb
  • 4Statement of changes in beneficial ownership17 Nov 2025
  • 4Statement of changes in beneficial ownership15 May 2025
  • 4Statement of changes in beneficial ownership27 Feb 2025
  • 4Statement of changes in beneficial ownership14 Aug 2024
  • 4Statement of changes in beneficial ownership20 May 2024
  • 4Statement of changes in beneficial ownership28 Feb 2024
  • 4Statement of changes in beneficial ownership23 Feb 2024
  • 4Statement of changes in beneficial ownership11 May 2023
  • 4Statement of changes in beneficial ownership6 Mar 2023

Tontine 25 Overseas Master Fund, L.P.(11)

  • 4Statement of changes in beneficial ownership7 Feb 2011
  • 4Statement of changes in beneficial ownership3 Dec 2010
  • 4Statement of changes in beneficial ownership6 Oct 2010
  • 4Statement of changes in beneficial ownership10 Sep 2010
  • 4Statement of changes in beneficial ownership9 Aug 2010
  • 4Statement of changes in beneficial ownership4 May 2010
  • 4Statement of changes in beneficial ownership28 Apr 2010
  • 4Statement of changes in beneficial ownership18 Mar 2010
  • 4Statement of changes in beneficial ownership10 Mar 2010
  • 4/AStatement of changes in beneficial ownership (amendment)10 Mar 2010

HAUBOLD SAMUEL ALLEN(10)

  • 4Statement of changes in beneficial ownership7 Mar 2008
  • 4Statement of changes in beneficial ownership9 Jul 2007
  • 4Statement of changes in beneficial ownership22 Feb 2007
  • 4Statement of changes in beneficial ownership5 Jul 2006
  • 4Statement of changes in beneficial ownership14 Feb 2006
  • 4Statement of changes in beneficial ownership14 Nov 2005
  • 4Statement of changes in beneficial ownership21 Jul 2005
  • 4Statement of changes in beneficial ownership17 Feb 2005
  • 4Statement of changes in beneficial ownership2 Jul 2004
  • 4Statement of changes in beneficial ownership24 May 2004

Tontine Capital Overseas Master Fund, L.P.(10)

  • 4Statement of changes in beneficial ownership3 Dec 2010
  • 4Statement of changes in beneficial ownership6 Oct 2010
  • 4Statement of changes in beneficial ownership10 Sep 2010
  • 4Statement of changes in beneficial ownership9 Aug 2010
  • 4Statement of changes in beneficial ownership4 May 2010
  • 4Statement of changes in beneficial ownership28 Apr 2010
  • 4Statement of changes in beneficial ownership18 Mar 2010
  • 4Statement of changes in beneficial ownership10 Mar 2010
  • 4/AStatement of changes in beneficial ownership (amendment)10 Mar 2010
  • 4Statement of changes in beneficial ownership3 Feb 2010

Tontine Capital Overseas GP, LLC(10)

  • 4Statement of changes in beneficial ownership3 Dec 2010
  • 4Statement of changes in beneficial ownership6 Oct 2010
  • 4Statement of changes in beneficial ownership10 Sep 2010
  • 4Statement of changes in beneficial ownership9 Aug 2010
  • 4Statement of changes in beneficial ownership4 May 2010
  • 4Statement of changes in beneficial ownership28 Apr 2010
  • 4Statement of changes in beneficial ownership18 Mar 2010
  • 4Statement of changes in beneficial ownership10 Mar 2010
  • 4Statement of changes in beneficial ownership3 Feb 2010
  • 4/AStatement of changes in beneficial ownership (amendment)10 Mar 2010

JARVIS ALAN GEOFFREY(9)

  • 4Statement of changes in beneficial ownership2 Oct 2003
  • 4Statement of changes in beneficial ownership18 Sep 2003
  • 4Statement of changes in beneficial ownership16 Sep 2003
  • 4Statement of changes in beneficial ownership15 Sep 2003
  • 4Statement of changes in beneficial ownership11 Sep 2003
  • 4Statement of changes in beneficial ownership10 Sep 2003
  • 4Statement of changes in beneficial ownership9 Sep 2003
  • 4Statement of changes in beneficial ownership5 Sep 2003
  • 4Statement of changes in beneficial ownership2 Sep 2003

HANSLIP HILARY ALAN(7)

  • 4Statement of changes in beneficial ownership22 Mar 2004
  • 4Statement of changes in beneficial ownership17 Mar 2004
  • 4Statement of changes in beneficial ownership15 Mar 2004
  • 4Statement of changes in beneficial ownership2 Dec 2003
  • 4Statement of changes in beneficial ownership1 Dec 2003
  • 4/A26 NOV FORM 4A- ALAN HANSLIP2 Dec 2003
  • 4Statement of changes in beneficial ownership2 Oct 2003

Dawson William Martin(7)

  • 4Statement of changes in beneficial ownership30 Nov 2007
  • 4Statement of changes in beneficial ownership29 Nov 2007
  • 4Statement of changes in beneficial ownership28 Feb 2006
  • 4Statement of changes in beneficial ownership27 Feb 2006
  • 4Statement of changes in beneficial ownership14 Feb 2006
  • 4Statement of changes in beneficial ownership21 Nov 2005
  • 3Initial statement of beneficial ownership4 May 2005

Arnold Elizabeth K(7)

  • 4Statement of changes in beneficial ownership25 Feb
  • 4Statement of changes in beneficial ownership27 Feb 2025
  • 4Statement of changes in beneficial ownership28 Feb 2024
  • 4Statement of changes in beneficial ownership2 Mar 2023
  • 4Statement of changes in beneficial ownership23 Feb 2022
  • 4Statement of changes in beneficial ownership10 May 2021
  • 3Initial statement of beneficial ownership3 Nov 2020

HIGNETT GEOFFREY JOHN(6)

  • 4Statement of changes in beneficial ownership24 Feb 2005
  • 5Annual statement of beneficial ownership14 Jan 2005
  • 4Statement of changes in beneficial ownership14 May 2004
  • 4Statement of changes in beneficial ownership4 Mar 2004
  • 4Statement of changes in beneficial ownership3 Mar 2004
  • 4Statement of changes in beneficial ownership2 Mar 2004

TODD SHARON ELIZABETH(6)

  • 4Statement of changes in beneficial ownership5 Jul 2005
  • 4/AFORM 4 - S TODD - 4 MARCH 20057 Mar 2005
  • 4Statement of changes in beneficial ownership7 Mar 2005
  • 4Statement of changes in beneficial ownership4 Mar 2005
  • 4Statement of changes in beneficial ownership24 Feb 2005
  • 4Statement of changes in beneficial ownership18 Feb 2005

CLARK WILLIAM ORR(6)

  • 4Statement of changes in beneficial ownership18 May 2004
  • 4Statement of changes in beneficial ownership17 May 2004
  • 4Statement of changes in beneficial ownership13 May 2004
  • 4Statement of changes in beneficial ownership12 May 2004
  • 4Statement of changes in beneficial ownership2 Oct 2003
  • 4Statement of changes in beneficial ownership11 Jun 2003

TAYLER JOHN PHILIP(5)

  • 4Statement of changes in beneficial ownership26 May 2004
  • 4Statement of changes in beneficial ownership25 May 2004
  • 4Statement of changes in beneficial ownership24 May 2004
  • 4Statement of changes in beneficial ownership17 May 2004
  • 4Statement of changes in beneficial ownership8 Mar 2004

MCDUFF PATRICK JOSEPH(5)

  • 4Statement of changes in beneficial ownership18 Mar 2016
  • 4Statement of changes in beneficial ownership1 Mar 2016
  • 4Statement of changes in beneficial ownership23 Feb 2016
  • 4Statement of changes in beneficial ownership19 Nov 2015
  • 3Initial statement of beneficial ownership20 May 2015

HALIS JEFFREY S(4)

  • 4Statement of changes in beneficial ownership9 Jun 1999
  • 4Statement of changes in beneficial ownership11 Jan 1999
  • 4Statement of changes in beneficial ownership4 Dec 1998
  • 3Initial statement of beneficial ownership4 Dec 1998

REVINGTON TIMOTHY PETER(4)

  • 4Statement of changes in beneficial ownership15 Dec 2003
  • 4Statement of changes in beneficial ownership24 Oct 2003
  • 4Statement of changes in beneficial ownership2 Oct 2003
  • 4Statement of changes in beneficial ownership5 Jun 2003

ASHWORTH HEATHER ELIZABETH(4)

  • 4Statement of changes in beneficial ownership24 Feb 2005
  • 4Statement of changes in beneficial ownership18 Feb 2005
  • 4Statement of changes in beneficial ownership14 May 2004
  • 4Statement of changes in beneficial ownership8 Mar 2004

PERRINS NEALE(4)

  • 4Statement of changes in beneficial ownership14 Feb 2006
  • 4Statement of changes in beneficial ownership14 Mar 2005
  • 4Statement of changes in beneficial ownership18 Feb 2005
  • 4Statement of changes in beneficial ownership14 May 2004

FEARN Peter(4)

  • 4Statement of changes in beneficial ownership26 Mar 2009
  • 4Statement of changes in beneficial ownership8 Jul 2008
  • 4Statement of changes in beneficial ownership9 May 2008
  • 3Initial statement of beneficial ownership20 Dec 2007

Blair Graeme(4)

  • 4Statement of changes in beneficial ownership25 Feb
  • 4Statement of changes in beneficial ownership27 Feb 2025
  • 4Statement of changes in beneficial ownership28 Feb 2024
  • 3Initial statement of beneficial ownership1 Jul 2020

FLORE BENITO(3)

  • 4Statement of changes in beneficial ownership21 Jul 2005
  • 4Statement of changes in beneficial ownership17 Feb 2005
  • 4Statement of changes in beneficial ownership2 Jul 2004

Nuttall Simon Kirkpatrick(3)

  • 4Statement of changes in beneficial ownership4 Aug 2006
  • 4Statement of changes in beneficial ownership14 Feb 2006
  • 3Initial statement of beneficial ownership30 Jan 2006

HALE MARTIN M SR(2)

  • 4Statement of changes in beneficial ownership9 Jul 2007
  • 4Statement of changes in beneficial ownership9 Mar 2004

LAWSON DUNCAN(2)

  • 4Statement of changes in beneficial ownership25 May 2004
  • 4Statement of changes in beneficial ownership14 May 2004

DOBBIE ALEXANDER ARCHIBALD(1)

  • 4Statement of changes in beneficial ownership14 May 2004

Cartmell David(1)

  • 3Initial statement of beneficial ownership4 May 2005

Lawler James Fintain(1)

  • 3Initial statement of beneficial ownership30 Aug 2005

Bausch Shelley J(1)

  • 3Initial statement of beneficial ownership1 Jul

≥5% Ownership

FMR LLC(24)

  • SC 13G/AInnospec Inc.10 Aug 2021
  • SC 13G/AInnospec Inc.8 Feb 2021
  • SC 13G/AInnospec Inc.7 Feb 2020
  • SC 13G/AInnospec Inc.13 Feb 2019
  • SC 13G/AInnospec Inc.13 Feb 2018
  • SC 13G/AInnospec Inc.14 Feb 2017
  • SC 13G/AInnospec Inc.10 May 2016
  • SC 13G/AInnospec Inc.12 Feb 2016
  • SC 13G/AInnospec Inc.12 Jan 2015
  • SC 13G/AInnospec Inc.14 Feb 2014

PRICE T ROWE ASSOCIATES INC /MD/(22)

  • SC 13G/AInnospec Inc.7 Feb 2017
  • SC 13G/AInnospec Inc.11 Feb 2016
  • SC 13G/AInnospec Inc.13 Oct 2015
  • SC 13G/AInnospec Inc.10 Feb 2015
  • SC 13G/AInnospec Inc.10 Feb 2014
  • SC 13G/AInnospec Inc.8 Feb 2013
  • SC 13G/AInnospec Inc.9 Feb 2012
  • SC 13G/AInnospec Inc.10 Feb 2011
  • SC 13G/AInnospec Inc.12 Feb 2010
  • SC 13G/AInnospec Inc.12 Feb 2009

VANGUARD GROUP INC(13)

  • SC 13G/AInnospec Inc.27 Mar
  • SC 13G/AInnospec Inc.13 Feb 2024
  • SC 13G/AInnospec Inc.9 Feb 2023
  • SC 13G/AInnospec Inc.10 Feb 2022
  • SC 13G/AInnospec Inc.10 Feb 2021
  • SC 13G/AInnospec Inc.12 Feb 2020
  • SC 13G/AInnospec Inc.11 Feb 2019
  • SC 13G/AInnospec Inc.10 Jul 2018
  • SC 13G/AInnospec Inc.9 Feb 2018
  • SC 13G/AInnospec Inc.10 Feb 2017

BlackRock Inc.(13)

  • SC 13G/AInnospec Inc.22 Jan 2024
  • SC 13G/AInnospec Inc.26 Jan 2023
  • SC 13G/AInnospec Inc.20 Jan 2023
  • SC 13G/AInnospec Inc.27 Jan 2022
  • SC 13G/AInnospec Inc.26 Jan 2022
  • SC 13GInnospec Inc.25 Jan 2021
  • SC 13G/AInnospec Inc.4 Feb 2020
  • SC 13G/AInnospec Inc.28 Jan 2019
  • SC 13G/AInnospec Inc.19 Jan 2018
  • SC 13G/AInnospec Inc.12 Jan 2017

HALIS JEFFREY S(9)

  • SC 13D/AOctel Corp5 Jul 2000
  • SC 13D/AOctel Corp5 Jan 2000
  • SC 13D/AOctel Corp9 Nov 1999
  • SC 13D/AOctel Corp12 Aug 1999
  • SC 13D/AOctel Corp9 Jun 1999
  • SC 13D/AOctel Corp25 Nov 1998
  • SC 13D/AOctel Corp5 Aug 1998
  • SC 13D/AOctel Corp11 Jun 1998
  • SC 13DOctel Corp8 Jun 1998

ROYCE & ASSOCIATES LP(9)

  • SC 13G/AInnospec Inc.31 Jan 2023
  • SC 13G/AInnospec Inc.21 Jan 2022
  • SC 13G/AInnospec Inc.3 Feb 2016
  • SC 13G/AInnospec Inc.5 May 2015
  • SC 13G/AInnospec Inc.9 Jan 2015
  • SC 13G/AInnospec Inc.10 Jan 2014
  • SC 13G/AInnospec Inc.5 Sep 2013
  • SC 13G/AInnospec Inc.11 Jan 2013
  • SC 13GInnospec Inc.13 Jan 2012

GENDELL JEFFREY L ET AL(8)

  • SC 13G/AInnospec Inc.8 Feb 2013
  • SC 13G/AInnospec Inc.10 Feb 2012
  • SC 13G/AInnospec Inc.1 Feb 2008
  • SC 13G/AInnospec Inc.17 Jan 2007
  • SC 13G/AInnospec Inc.15 Feb 2006
  • SC 13G/AOctel Corp2 Aug 2005
  • SC 13G/AOctel Corp10 Feb 2005
  • SC 13GOctel Corp18 Nov 2004

TONTINE CAPITAL PARTNERS L P(8)

  • SC 13GInnospec Inc.17 Jun 2011
  • SC 13D/AInnospec Inc.6 Oct 2010
  • SC 13D/AInnospec Inc.17 Sep 2010
  • SC 13D/AInnospec Inc.7 May 2010
  • SC 13D/AInnospec Inc.11 Mar 2010
  • SC 13D/AInnospec Inc.4 Feb 2010
  • SC 13D/AInnospec Inc.23 Oct 2009
  • SC 13DInnospec Inc.10 Nov 2008

Allspring Global Investments Holdings, LLC(8)

  • SC 13G/AInnospec Inc.7 Oct
  • SC 13GInnospec Inc.7 Oct
  • SC 13G/AInnospec Inc.31 Jul
  • SC 13G/AInnospec Inc.12 Jan 2024
  • SC 13G/AInnospec Inc.4 May 2023
  • SC 13G/AInnospec Inc.13 Jan 2023
  • SC 13G/AInnospec Inc.8 Feb 2022
  • SC 13GInnospec Inc.18 Jan 2022

DIMENSIONAL FUND ADVISORS LP(7)

  • SC 13GInnospec Inc.14 Jul
  • SC 13G/AInnospec Inc.8 Feb 2022
  • SC 13G/AInnospec Inc.12 Feb 2021
  • SC 13G/AInnospec Inc.12 Feb 2020
  • SC 13G/AInnospec Inc.8 Feb 2019
  • SC 13G/AInnospec Inc.9 Feb 2018
  • SC 13GInnospec Inc.9 Feb 2017

KESTREL INVESTMENT MANAGEMENT CORP(6)

  • SC 13G/AOctel Corp14 Feb 2005
  • SC 13G/AOctel Corp10 Feb 2004
  • SC 13G/AOctel Corp13 Feb 2003
  • SC 13G/AOctel Corp13 Feb 2002
  • SC 13G/AOctel Corp14 Feb 2001
  • SC 13GOctel Corp14 Feb 2000

WHITE MOUNTAINS INSURANCE GROUP LTD(5)

  • SC 13GInnospec Inc.14 Feb 2007
  • SC 13G/AInnospec Inc.14 Feb 2006
  • SC 13G/AOctel Corp11 Feb 2005
  • SC 13G/AOctel Corp13 Feb 2004
  • SC 13GOctel Corp5 Feb 2003

BARCLAYS GLOBAL INVESTORS NA /CA/(5)

  • SC 13G/AInnospec Inc.22 Jan 2008
  • SC 13GInnospec Inc.23 Jan 2007
  • SC 13G/AInnospec Inc.18 Jan 2007
  • SC 13GInnospec Inc.26 Jan 2006
  • SC 13GOctel Corp14 Feb 2005

Huber Capital Management LLC(5)

  • SC 13G/AInnospec Inc.13 Feb 2018
  • SC 13G/AInnospec Inc.13 Feb 2017
  • SC 13G/AInnospec Inc.12 Feb 2016
  • SC 13GInnospec Inc.12 Feb 2015
  • SC 13GInnospec Inc.10 Feb 2014

WELLS FARGO & COMPANY/MN(4)

  • SC 13G/AInnospec Inc.8 Dec 2021
  • SC 13G/AInnospec Inc.10 Nov 2021
  • SC 13G/AInnospec Inc.11 Feb 2021
  • SC 13GInnospec Inc.4 Feb 2020

WASATCH ADVISORS LP(4)

  • SC 13G/AInnospec Inc.13 May 2025
  • SC 13G/AInnospec Inc.12 Feb 2025
  • SC 13G/AInnospec Inc.9 Feb 2024
  • SC 13GInnospec Inc.8 Feb 2023

WELLINGTON MANAGEMENT GROUP LLP(4)

  • SC 13G/AInnospec Inc.11 Feb 2016
  • SC 13G/AInnospec Inc.12 Feb 2015
  • SC 13G/AInnospec Inc.14 Feb 2014
  • SC 13GInnospec Inc.14 Feb 2013

BAUPOST GROUP LLC /ADV(4)

  • SC 13GOctel Corp14 Feb 2002
  • SC 13G/AOctel Corp14 Feb 2001
  • SC 13G/AOctel Corp10 Feb 2000
  • SC 13GOctel Corp10 Jun 1999

STATE STREET BANK & TRUST CO(2)

  • SC 13GOctel Corp11 Feb 2000
  • SC 13GOctel Corp16 Feb 1999

ARTISAN PARTNERS LTD PARTNERSHIP(2)

  • SC 13G/AInnospec Inc.26 Jan 2007
  • SC 13GInnospec Inc.27 Jan 2006

PROSPECTOR PARTNERS LLC(2)

  • SC 13G/AInnospec Inc.13 Feb 2007
  • SC 13GInnospec Inc.14 Feb 2006

BARCLAYS PLC(1)

  • SC 13GInnospec Inc.10 Feb 2006

BAUPOST GROUP LLC/MA(1)

  • SC 13G/AOctel Corp9 Aug 2002

BlackRock, Inc.(1)

  • SC 13G/AInnospec Inc.30 Apr 2025

VANGUARD CAPITAL MANAGEMENT LLC(1)

  • SC 13GInnospec Inc.30 Apr

VANGUARD PORTFOLIO MANAGEMENT LLC(1)

  • SC 13GInnospec Inc.29 Apr