MARY SYLVIA OLSEN is a private shareholder. MARY SYLVIA OLSEN har eierandeler i 1 selskap.

Selskaper MARY SYLVIA OLSEN eier

Company	Stake	Value (est.)
PHARMASUM THERAPEUTICS AS	1.3%	–

Source: Biztrac.no · Data from the Brønnøysund Register Centre and the Norwegian Tax Administration · Last updated 15.06.2026.