Mariken Birgit Massi Seip Blakstad is a private shareholder. Mariken Birgit Massi Seip Blakstad holds stakes in 3 companies.

Companies Mariken Birgit Massi Seip Blakstad owns

Company	Stake
HOFF OG GULLKROKEN NÆRINGSUTLEIE AS	12.6%
GUMØY GOLF AS	0.4%
HAGA GOLF AS	0.1%

Source: Biztrac.no · Data from the Brønnøysund Register Centre and the Norwegian Tax Administration · Last updated 03.10.2026.