John Pietrowicz

Director/Board Member at MAREX GROUP PLC

Net worth: 1 M $ as of 2026-05-30

62 year

60 connections

Finance

Technology Services

Consumer Services

Profile

John William Pietrowicz is on the board of NEX International Ltd., NEX Group Holdings Ltd. and S&P Dow Jones Indices LLC and Chief Financial Officer & Senior Managing Director at CME Group, Inc. In the past Mr. Pietrowicz was Chief Financial Officer for Merchant's Exchange LLC and Principal at Ameritech Corp. He received an MBA from Loyola University of Chicago and an undergraduate degree from the University of Notre Dame.

Known holdings in public companies

Company	Date	Number of shares	Valuation	Valuation date
MAREX GROUP PLC 0.03%	2026-06-08	23,771 ( 0.03% )	1 M $	2026-05-30

John Pietrowicz active positions

Companies	Position	Start
MAREX GROUP PLC	Director/Board Member	2024-04-23
S&P Dow Jones Indices LLC S&P Dow Jones Indices LLC Internet Software/ServicesTechnology Services Provides index-based concepts, benchmarks and data solutions	Director/Board Member	-
NEX Group Holdings Ltd. NEX Group Holdings Ltd. Investment Banks/BrokersFinance Operates as a holding company with interests in brokerage services and financial services software	Director/Board Member	2019-12-04
CME London Ltd. CME London Ltd. Financial ConglomeratesFinance Functions as an investment holding company	Director/Board Member	2018-03-25
World Federation of Exchanges World Federation of Exchanges Miscellaneous Commercial ServicesCommercial Services Operate as a global industry association for exchanges and clearing houses	Director/Board Member	2021-09-08
Federal Home Loan Bank of Chicago Federal Home Loan Bank of Chicago Finance/Rental/LeasingFinance Provides mortgage lending services	Director/Board Member	2024-12-31

All active positions of John Pietrowicz

Former positions of John Pietrowicz

Companies	Position	End
ICAP PLC	Director/Board Member	2023-12-30
CME GROUP INC.	Director of Finance/CFO	2023-02-27
Bursa Malaysia Derivatives Bhd. Bursa Malaysia Derivatives Bhd. Investment Banks/BrokersFinance Provides derivatives trading and transaction processing services	Director/Board Member	-
░░░ ░░░░░░░░ ░░░░░░ ░░░░	░░░░░░░░░░░░░░ ░░░░░░	-
░░░░░░░░░ ░░░░░	░░░░░░░░░ ░░░░░░░░░░░░░░░░░	-

See the detail of John Pietrowicz's experience

Training of John Pietrowicz

Experiences
Positions held

Active

Inactive

Listed companies

Private companies

See the detail of John Pietrowicz's experience

Connections

1st degree connections

1st degree companies

Male

Female

Members of the board

Executives

See the personal network

Linked companies

Private companies	15
Ameritech Corp. Ameritech Corp. Specialty TelecommunicationsCommunications Provides telecommunications services	Communications
CME Group, Inc. CME Group, Inc. Investment Banks/BrokersFinance Provides clearing and transaction fees, market data & information services	Finance
University of Notre Dame University of Notre Dame Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
NEX International Ltd. NEX International Ltd. Investment Banks/BrokersFinance Provides electronic brokerage services	Finance
Bolsa Mexicana de Valores SAB de CV Bolsa Mexicana de Valores SAB de CV Investment Banks/BrokersFinance Operates as a stock exchange	Finance
Loyola University of Chicago Loyola University of Chicago Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Federal Home Loan Bank of Chicago Federal Home Loan Bank of Chicago Finance/Rental/LeasingFinance Provides mortgage lending services	Finance
Merchant's Exchange LLC
World Federation of Exchanges World Federation of Exchanges Miscellaneous Commercial ServicesCommercial Services Operate as a global industry association for exchanges and clearing houses	Commercial Services
NEX Group Holdings Ltd. NEX Group Holdings Ltd. Investment Banks/BrokersFinance Operates as a holding company with interests in brokerage services and financial services software	Finance
Bursa Malaysia Derivatives Bhd. Bursa Malaysia Derivatives Bhd. Investment Banks/BrokersFinance Provides derivatives trading and transaction processing services	Finance
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
CME Clearing Europe Ltd. CME Clearing Europe Ltd. Packaged SoftwareTechnology Services Develops and operates software applications	Technology Services
S&P Dow Jones Indices LLC S&P Dow Jones Indices LLC Internet Software/ServicesTechnology Services Provides index-based concepts, benchmarks and data solutions	Technology Services
CME London Ltd. CME London Ltd. Financial ConglomeratesFinance Functions as an investment holding company	Finance