Marc Grynberg

Director/Board Member at NEXANS

Net worth: 303 285 $ as of 2026-07-30

61 year

70 connections

Non-Energy Minerals

Consumer Services

Distribution Services

Profile

Marc Grynberg is a Belgian businessperson who has been at the head of 5 different companies and holds the position of Chairman-Supervisory Board of Umicore Management AG. Mr. Grynberg is also on the board of Nexans SA, Umicore Marketing Services Hong Kong Ltd., Umicore Japan KK and Umicore Marketing Services Korea Co. Ltd. and Chief Executive Officer & Executive Director at Umicore. Marc Grynberg received an undergraduate degree from Solvay Business School of Economics & Management.

Known holdings in public companies

Company	Date	Number of shares	Valuation	Valuation date
NEXANS SA 0%	2025-12-30	2,000 ( 0% )	303 285 $	2026-07-30

Marc Grynberg active positions

Companies	Position	Start
NEXANS	Director/Board Member	2017-05-10
WIENERBERGER AG	Director/Board Member	2022-05-02
UMICORE	Director/Board Member	2023-04-26
Umicore AG & Co. KG Umicore AG & Co. KG Other Consumer ServicesConsumer Services Manufactures automotive emission control catalysts	Chairman	-
Umicore Marketing Services (Hong Kong) Ltd. Umicore Marketing Services (Hong Kong) Ltd. Wholesale DistributorsDistribution Services Engages in imports and exports of metals	Director/Board Member	-
Umicore Japan KK	Director/Board Member	-
Umicore Marketing Services Korea Co. Ltd.	Director/Board Member	-
Umicore Management AG Umicore Management AG Wholesale DistributorsDistribution Services Supplies gold and precious metals	Chairman	-
Umicore Autocat Poland Sp zoo	Chairman	-
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All active positions of Marc Grynberg

Former positions of Marc Grynberg

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See the detail of Marc Grynberg's experience

Training of Marc Grynberg

Experiences
Positions held

Active

Inactive

Listed companies

Private companies

See the detail of Marc Grynberg's experience

Connections

1st degree connections

1st degree companies

Male

Female

Members of the board

Executives

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Linked companies

Private companies	13
Umicore SA Umicore SA Other Metals/MineralsNon-Energy Minerals Mines, refines, fabricates zinc, copper and other metals and manufactures metal-based advanced material solutions	Non-Energy Minerals
Umicore AG & Co. KG Umicore AG & Co. KG Other Consumer ServicesConsumer Services Manufactures automotive emission control catalysts	Consumer Services
Wienerberger AG Wienerberger AG Construction MaterialsNon-Energy Minerals Manufactures and markets clay bricks and roof tiles	Non-Energy Minerals
Nexans SA Nexans SA Electrical ProductsProducer Manufacturing Manufactures copper and fiber optics cables	Producer Manufacturing
Agoria VZW Agoria VZW Miscellaneous Commercial ServicesCommercial Services Operates employers and trade association	Commercial Services
Umicore Marketing Services (Hong Kong) Ltd. Umicore Marketing Services (Hong Kong) Ltd. Wholesale DistributorsDistribution Services Engages in imports and exports of metals	Distribution Services
Umicore Japan KK
Umicore Korea Ltd. Umicore Korea Ltd. Other Metals/MineralsNon-Energy Minerals Part of Umicore SA, Umicore Korea Ltd. is a company based in Seoul, South Korea. The CEO of the South Korean company is Marc Grynberg.	Non-Energy Minerals
Solvay Business School of Economics & Management Solvay Business School of Economics & Management Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Umicore Autocat Poland Sp zoo
Umicore Marketing Services Korea Co. Ltd.
Umicore International Luxembourg
Umicore Management AG Umicore Management AG Wholesale DistributorsDistribution Services Supplies gold and precious metals	Distribution Services