Senior Management

Per Sjöstrand
Born 1958
CEO and Board Member. Chair of the Board 2021-2025
Other board positions
Chair: Green Landscaping Group, Uniwater, Håndverksgruppen AS, Eltel and ByggPartnerGruppen. Board member: Nordic Climate Group.
Work experience
Founder of Instalco and CEO 2014–2021. CEO of several companies
and both director and manager of major projects at the Swedish Transport Administration.
Education
MSc Engineering, Chalmers University of Technology,Gothenburg
Holdings in Instalco: 22,957,835 shares

Christina Kassberg
Born 1968
CFO
Work experience
CFO Climeon, Addtech, Resurs Holding, Stim and Medivir. Auditor Öhrling PricewaterhouseCoopers
Education
BSc Business & Economics, Stockholm University
Holdings in Instalco: 31,550 shares, 25,000 options (2023/2026), 50,000 options (2024/2027), 50,000 options (2025/2028).

Fredrik Trahn
Born 1969
Head of Communications and Sustainability
Work experience
Journalist SvD, Head of Information Bristol Myers Squibb, Press Officer
Electrolux, Press Officer SEB in the Volvo Ocean Race, Head of Communications Swedish Athletics Association
Education
Degree from the Institute of Graphic Design (GI), studies in communications and Swedish language at Stockholm University
Holdings in Instalco: 27,565 shares, 50,000 options (2023/2026), 10 000 options (2024/2027), 15,000 options (2025/2028),.
Extended Senior Management
Instalco's extend Senior Management is in addition to the senior management above made up of the following persons.

Johan Larsson
Born 1976
Country Manager Sweden
Work experience
CEO DALAB Dala Luftbehandling, CEO DALAB Group AB
Education
Upper secondary school and training in sheet metal and ventilation installations
Holdings in Instalco: 1,656,610 shares, 35,000 options (2023/2026), 50,000 options (2024/2027).

Roger Aksnes
Born 1972
Country Manager Norway
Work experience
Project Manager and Head of Department at Bravida, CEO Andersen og Aksnes Rørleggerbedrift
Education
Plumbing and heating technician and master pipe layer, technical college
Holdings in Instalco: 531,152 shares, 35,000 options (2023/2026).

Jukka-Pekka Kujala
Born 1979
Country Manger Finland
Work experience
CEO Aviator Airport Services Finland Oy. Variety of positions in industrial and facility service industries
Education
Master of Science (M.Sc.), Automation Engineer Technology
Holdings in Instalco: 4 000 shares

Patrik Persson
Born 1964
COO Sweden
Work experience
Deputy CEO and CEO Rörläggaren
Education
Plumbing and heating technician, technical college
Holdings in Instalco: 44,780 shares, 35,000 options (2023/2026), 35,000 options (2024/2027), 35,000 options (2025/2028).

Anders Lundin
Born 1966
President Tech & Consulting
Work experience
30 years’ experience in the consulting industry in a variety of positions.
Regional Manager and Business Area President ÅF Buildings. CEO Intec Nordic
Education
Heating & Plumbing Engineer, Marketing and organisational theory
at Linköping University
Holdings in Instalco: 26,150 shares, 20,000 options (2023/2026), 10,000 options (2024/2027), 10,000 options (2025/2028).

Mathilda Eriksson
Born 1990
Head of IR
Work experience
Journalist at Vestmanlands Läns Tidning. IR and communications roles at, among others, Kinnevik, Alimak Group and Kreab
Education
MSc Business Management and BSc Business and Economics, Stockholm School of Economics
Holdings in Instalco: 1 300 shares, 10 000 options (2023/2026), 10 000 options (2024/2027), 15 000 options (2025/2028).
Holding as of 1 September 2025. Including closely related physical and legal persons’ holdings.