Halvor Søren Marstrander • 1981 • Oslo • 2 roles • 17 shareholdings

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Roles

Boards

Name	Role	Total operating income	Total equity	Shares
W WAYSTAR ROYCO AS	Chairman	-	-345,847	68 % directly
G G4 INVEST AS	Chairman	-	200,506	50 % directly

Last update: Apr 13, 2023

Related industries

No related industries

Direct relationships3

KK
Kristoffer Kittilsen Johansson1985
WAYSTAR ROYCO AS
TA
Thomas Aleksander Nordli Stenersen1981
G4 INVEST AS
MB
Martin Brækhus-Sjølie1979
G4 INVEST AS

Shares owned by Halvor Søren Marstrander

Name	Share class	Total operating income	Total equity	Share
W WAYSTAR ROYCO AS	Ordinære aksjer	0	-345,847	68 % directly
G G4 INVEST AS	Ordinære aksjer	0	200,506	50 % directly
I ISOLA HOLDING AS	Ordinære aksjer	18,824,000	185,322,000	7.5 % directly
T TUSENTAK AS		0	24,430	7.5 % indirectly
I ISOLA AS		953,415,000	78,725,000	7.5 % indirectly
I ISOLA SKIFER ROGNE AS		0	58,793	7.5 % indirectly
F FLØYSAND TAK AS		278,241,590	19,157,798	7.5 % indirectly
H HESSELBERGTAK AS		70,834,027	-1,302,103	6.37 % indirectly
N NYE NORDLANDTAK AS		30,224,023	2,211,362	5.62 % indirectly
I ISOLA SOLAR AS		23,291,872	9,312,360	4.95 % indirectly
T TRONDHEIM TAK AS		52,672,689	7,038,908	4.88 % indirectly
H HESSELBERGTAK BVT AS		31,269,749	-8,070,816	4.46 % indirectly
L LABELI AS	Ordinære aksjer	0	-264,727	3.23 % directly
T TAKTEKKING SØR ISOLA AS		17,300,958	3,875,225	2.95 % indirectly
A AKER ASA	NO0010234552	0	20,435,000,000	< 0.01 % directly
A AKER HORIZONS ASA	NO0010921232	0	4,048,000,000	< 0.01 % directly
E EQUINOR ASA	NO0010096985	72,543,000,000	41,090,000,000	< 0.01 % directly

Limited to direct ownership positions of 0.5% or more.

Last update: Jun 2, 2025