Maria Sidén leaving as Chief Financial Officer for John Mattson

Following seven years as the CFO for the property company John Mattson, Maria Sidén has announced her intent to step down from her position.

John Mattson Fastighetsföretagen AB became a listed company in 2019. The company was previously family-owned by heirs to the master builder John Mattson. Following many years of operations concentrated in Lidingö, after the listing John Mattson has expanded through acquisitions, and is now also established in the City of Stockholm as well as Sollentuna, Upplands Väsby and Nacka Municipality. 

“I’m proud of the work that I and my colleagues have done together to develop John Mattson into a listed company. It has been exciting and educational to be part of the company’s growth and to contribute to increased property value. After seven years, I believe it’s time to move on to new challenges,” says Maria Sidén.

“I would like to extend warm thanks to Maria for her valuable contributions during an important part of the company’s history. She played an important role in successfully establishing the company on the stock exchange and under Maria’s management, the company has grown, economically and financially, from a family business to a listed company. I wish Maria all the best in her continued career,” comments Siv Malmgren, CEO of John Mattson.

Maria Sidén will remain in her current role during the notice period. The recruitment process for a new Chief Financial Officer will begin immediately.

Lidingö, 23 September 2021
John Mattson Fastighetsföretagen AB (publ)


For further information, please contact:
Siv Malmgren, CEO of John Mattson.
+46 (0)70-539 35 07, [email protected]

Johan Ljungberg, Chairman of the Board, John Mattson
+46 (0)73-960 58 87,
[email protected]


This information is information that John Mattson Fastighetsföretagen AB is obliged to disclose pursuant to the EU Market Abuse Regulation. The information was submitted for publication, through the agency of the contact person set out above, at 8.30 a.m. CEST on 23 September 2021.

About John Mattson Fastighetsföretagen AB (publ)
John Mattson is a residential property owner with 2,800 rental apartments as well as commercial premises and leaseholds in five municipalities in the Stockholm region: Lidingö, Sollentuna, Stockholm, Nacka and Upplands Väsby. As of 30 June 2021, the property value was SEK 8.7 billion. The focus of the company’s strategy is on property management, refinement, densification and acquisitions. The management of John Mattson’s properties is characterised by an overall perspective and close customer relationships. The company’s vision is to create great neighbourhoods across generations. John Mattson’s shares are listed under the symbol JOMA on Nasdaq Stockholm, Mid Cap. Read more at: and


Mari Edberg
Head of Communications
08- 613 35 04