Mary Holstein is a private shareholder. Mary Holstein holds a stake in 1 company, and roles in several others.

Companies Mary Holstein owns

Company	Stake
RRB AS	32.9%

Roles

Styremedlem

1 selskap

RRB AS 995939444

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 03.10.2026.