Extraordinary General Meeting of Castellum AB (publ)

At the Extraordinary General Meeting of Castellum AB (publ) on May 20, 2014, it
was resolved to approve the Board of Director’s resolution of April 13, 2016, to
carry out a new issue of shares with preferential rights for Castellum AB’s
shareholders. Upon full subscription of the rights issue, Castellum AB will
receive an amount of SEK 6,314 million, before deduction of transaction costs.
The rights issue is carried out as part of the company’s financing of the
acquisition of all of the shares in Norrporten AB (publ). For more information
on the rights issue, please refer to previous press releases from the company
which were published on April, 13 2016 and May, 18 2016.

Further, the Extraordinary General Meeting resolved, in accordance with the
Board of Directors’ proposal, to authorise the Board of Directors to resolve on
new issues of shares, whereby payment for the subscribed shares shall be made by
the contribution of shares in Norrporten AB (payment in kind). The purpose of
the authorisation is to carry out a new issue of shares against payment in kind
to the Second and Sixth AP funds as part of the purchase price for the company’s
acquisition of all of the shares in Norrporten AB.

In light of the General Meeting’s above resolutions, all of the condition
precedents set out in the company’s share purchase agreement with Second and
Sixth AP funds regarding the company’s acquisition of all of the shares in
Norrporten AB have been fulfilled.

On the basis that the rights issue is fully subscribed for and assuming that all
of the company’s re-purchased own shares are transferred to the Second and Sixth
AP funds, the company’s share capital will increase from SEK 127,003,354 to SEK
136,600,583 by way of the new issue of shares against payment in kind to the
Second and Sixth AP funds. After the completion of the acquisition, the Second
and Sixth AP funds will be the owners of a total of 14,666,195 shares in the
company (including the 1,065,612 shares in the company which the Second AP fund
holds on the date of this press release) and 13,600,583 shares in the company,
respectively, corresponding to approximately 5.37 percent and approximately 4.98
percent of all of the shares and votes in the company, respectively.

For additional information, please contact:
Charlotte Strömberg, Chairman of the Board of Directors. Phone +46 702 77 04 03
Henrik Saxborn, CEO, Phone +46 31-60 74 50

www.castellum.se

Castellum AB (publ) publishes this information in compliance with the Swedish
Securities Market Act and/or the Swedish Act on Trading in Financial
Instruments. This information was announced on May 20, 2016, at 11.15 (CET).

Castellum is one of the major listed real estate companies in Sweden. The fair
value of the real estate portfolio, prior to the contemplated acquisition of
Norrporten, amounts to approx. SEK 45 billion, and comprises premises for
office, retail, warehouse and industrial purposes with a total lettable area of
approx. 3.6 million sq.m. After the acquisition of Norrporten, Castellum’s real
estate portfolio will increase by 60 percent to SEK 71 billion, as per pro forma
March 31, 2016.

After acquiring Norrporten, Castellum will own and manage properties through one
common brand in five geographical regions with strong local presence. The five
geographical regions are: West, Öresund, Stockholm, North and Central.

In 2015, Castellum sustainability performance was awarded two top distinctions:
the World Green Building Council’s award Business Leadership in Sustainability
and “Green Star 2015” by GRESB. This means that Castellum is one of the highest
ranking companies in the world in the real estate sector.

The Castellum share is listed on Nasdaq Stockholm Large Cap.

Castellum AB (publ), Box 2269, SE-403 14 Gothenburg | Org nr/Corp Id no SE
556475-5550 | Phone +46 31 60 74 00 Fax +46 31 13 17 55