Arnt Marius By • 1984 • Løkken verk • 6 roles • 4 shareholdings

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Roles

Management

Name	Role	Total operating income	Total equity	Shares
O OPTITUNING AS	Managing Director/CEO	12,059,937	-520,711	100 % directly
A ARNHEIM AS	Managing Director/CEO	256,432	120,810	100 % directly

Boards

Name	Role	Total operating income	Total equity	Shares
O OPTITUNING AS	Chairman	12,059,937	-520,711	100 % directly
A ARNHEIM AS	Chairman	256,432	120,810	100 % directly
O OPTITUNING TRONDHEIM AS	Chairman	1,855,025	124,990	51 % indirectly
O OPTIFILES AS Closed	Chairman	3,124,764	-200,298	45 % directly

Last update: Apr 13, 2023

Related industries1

Services
/ IT services

Direct relationships3

AH
Anders Halvorsen Bjørgan1992
OPTITUNING AS, OPTITUNING TRONDHEIM AS
JH
Jan Henriksen1988
OPTIFILES AS
AF
Atle Fredrik By1989
ARNHEIM AS

Shares owned by Arnt Marius By

Name	Share class	Total operating income	Total equity	Share
O OPTITUNING AS	Ordinære aksjer	12,059,937	-520,711	100 % directly
A ARNHEIM AS	Ordinære aksjer	256,432	120,810	100 % directly
O OPTITUNING TRONDHEIM AS		1,855,025	124,990	51 % indirectly
O OPTIFILES AS Closed	Ordinære aksjer	3,124,764	-200,298	45 % directly

Limited to direct ownership positions of 0.5% or more.

Last update: Jun 2, 2025