Tekla - Major shareholder announcements

Notification of a change in shareholding according to Securities Markets Act 2:10

Tekla Corporation       Stock Exchange Announcement   14.12.2007  at
3.40 p.m.


Notification of a change in shareholding according to Securities
Markets Act 2:10


Tekla Corporation has received the following notification on December
13, 2007: Fidelity International Ltd's and its direct and indirect
subsidiaries' holdings in Tekla Corporation have crossed below the 5%
threshold by means of sales of shares on December 12, 2007. The
holdings of Fidelity International Limited and its subsidiaries are
divided as follows:



Name of the Fund       Amount of shares   Proportion of share capital
                                                    and voting rights
FIJ IT EURO SMLLR COS            66,020                         0.29%
OPN MTHR
FID FDS - EURO SMALLER        1,059,136                         4.70%
CO POOL
Total                         1,125,156                         4.99%



According to their previous notification of March 23, 2007, they
informed that the holdings were 8.37%.

The stock of Tekla Corporation comprises a total of 22,586,200
shares.


Tekla Corporation


Ari Kohonen, President and CEO
phone +358 50 64 124
ari.kohonen(at)tekla.com


Distribution:     Helsinki Exchanges, main media

Tekla is the industry-leading international software company whose
innovative software solutions make customers' core businesses more
effective in building and construction, energy distribution and in
municipalities.  The company's model-based software products and
related services are used in more than 80 countries. Tekla Group's
net sales for 2006 amounted to approximately 50 million euros and
operating result 13.6 million euros. At the moment international
operations account for more than 80% of net sales.

Tekla has offices in 12 countries and a worldwide partner network.
Its headquarters are situated in Espoo, Finland. Tekla Group employs
nearly 400 people, of whom about a third work outside Finland. Tekla
was established in 1966 and is one of the oldest software companies
in Finland.  Additional information on Tekla at www.tekla.com