Per Harald Mathisen is a private shareholder. Per Harald Mathisen holds stakes in 2 companies.

Companies Per Harald Mathisen owns

Company	Stake
INTEROIL EXPLORATION AND PRODUCTION ASA	0.9%
BRYGGERIET 1899 AS	0.1%

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