Ian Lowitt

Chief Executive Officer at MAREX GROUP PLC

Net worth: 150 M $ as of 31/05/2026

62 year

78 connections

Finance

Consumer Services

Technology Services

Profile

Ian Theo Lowitt is currently Chief Executive Officer at Marex Spectron International Ltd. since 2016, Marex Group Plc since 2016, Marex Group, Inc., and Marex Financial since 2019.
Former roles include Chairman at Lehman Brothers Bancorp, Inc., Director at The Depository Trust & Clearing Corp., CFO, Co-Chief Administrative Officer & Controller at Lehman Brothers Holdings, Inc. from 1994 to 2008, and Chief Administrative Officer at Lehman Brothers Europe Ltd. from 2005 to 2006.
Education includes undergraduate and graduate degrees from the University of the Witwatersrand and the University of Oxford.

Known holdings in public companies

Company	Date	Number of shares	Valuation	Valuation date
MAREX GROUP PLC 3.87%	12/06/2026	2,831,358 ( 3.87% )	150 M $	31/05/2026

Ian Lowitt active positions

Companies	Position	Start
MAREX GROUP PLC	Chief Executive Officer	01/01/2016
Marex Financial Marex Financial Investment ManagersFinance Provides investment advice	Chief Executive Officer	09/12/2019
Marex Group, Inc. Marex Group, Inc. Internet Software/ServicesTechnology Services Operates as a platform that provides liquidity, market access and infrastructure services to clients in commodities and financial markets	Chief Executive Officer	-
Marex Spectron International Ltd. Marex Spectron International Ltd. Investment Banks/BrokersFinance Provides brokerage services	Chief Executive Officer	01/01/2016

All active positions of Ian Lowitt

Former positions of Ian Lowitt

Companies	Position	End
Lehman Brothers Holdings, Inc. Lehman Brothers Holdings, Inc. Financial ConglomeratesFinance Provides financial and investment banking services	Director of Finance/CFO	22/09/2008
Lehman Brothers Europe Ltd. Lehman Brothers Europe Ltd. Investment Banks/BrokersFinance Provides financial services	Chief Administrative Officer	01/10/2006
The Depository Trust & Clearing Corp. The Depository Trust & Clearing Corp. Financial ConglomeratesFinance Operates as a financial company that provides institutional trade processing, clearing, settlement and wealth management services	Director/Board Member	-
Lehman Brothers Bancorp, Inc. Lehman Brothers Bancorp, Inc. Regional BanksFinance Provides banking and financial services	Chairman	-

See the detail of Ian Lowitt's experience

Training of Ian Lowitt

Experiences
Positions held

Active

Inactive

Listed companies

Private companies

See the detail of Ian Lowitt's experience

Connections

1st degree connections

1st degree companies

Male

Female

Members of the board

Executives

See the personal network

Linked companies

Private companies	10
Lehman Brothers Holdings, Inc. Lehman Brothers Holdings, Inc. Financial ConglomeratesFinance Provides financial and investment banking services	Finance
Marex Financial Marex Financial Investment ManagersFinance Provides investment advice	Finance
University of Oxford University of Oxford Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
The Depository Trust & Clearing Corp. The Depository Trust & Clearing Corp. Financial ConglomeratesFinance Operates as a financial company that provides institutional trade processing, clearing, settlement and wealth management services	Finance
Lehman Brothers Bancorp, Inc. Lehman Brothers Bancorp, Inc. Regional BanksFinance Provides banking and financial services	Finance
University of the Witwatersrand University of the Witwatersrand Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Lehman Brothers Europe Ltd. Lehman Brothers Europe Ltd. Investment Banks/BrokersFinance Provides financial services	Finance
Marex Group, Inc. Marex Group, Inc. Internet Software/ServicesTechnology Services Operates as a platform that provides liquidity, market access and infrastructure services to clients in commodities and financial markets	Technology Services
Marex Group Plc Marex Group Plc Internet Software/ServicesTechnology Services Operates as a financial services platform that provides essential liquidity, market access and infrastructure services to energy, commodities and financial markets	Technology Services
Marex Spectron International Ltd. Marex Spectron International Ltd. Investment Banks/BrokersFinance Provides brokerage services	Finance