Jon Fredrik Mostraum

Private shareholder 5915 HJELMÅS NO

Jon Fredrik Mostraum is a private shareholder with an estimated portfolio value of NOK 8.1m. Jon Fredrik Mostraum holds stakes in 2 companies, and roles in several others.

Estimated portfolio value

NOK 8.1m

The sum of estimated values across all known holdings in Norwegian AS/ASA companies

Companies Jon Fredrik Mostraum owns

Company	Stake	Value (est.)
MOSTRAUM HOLDING AS	70.0%	NOK 8.1m
HJELMÅS HANDELSLAG LL	0.3%	NOK 10,000

Roles

Styrets leder

5 selskaper

HJELMÅS MEKANISKE VERKSTED AS 921590903

ROSLAGEN CHARTERING AS 920178731

MOSTRAUM HOLDING AS 919974117

ROSLAGEN SHIPPING AS 921590865

MOSTRAUM MANAGEMENT AS 921590830

Daglig leder

3 selskaper

HJELMÅS MEKANISKE VERKSTED AS 921590903

ROSLAGEN CHARTERING AS 920178731

MOSTRAUM MANAGEMENT AS 921590830

Styremedlem

1 selskap

OCEANBYTE AS 937205554

Active roles recorded in the Register of Business Enterprises / the Central Coordinating Register

Source: Biztrac.no · Data from the Brønnøysund Register Centre and the Norwegian Tax Administration · Last updated 02.09.2026.