Wolters Kluwer €175 million Share Buy-back Program, Update November 19 – 23

Amsterdam . – Wolters Kluwer, a leading global information services and publishing company, today announces that in line with the launch of its €175 million share buy-back program on November 7, 2007, the company has repurchased 2,019,324 ordinary shares in the period November 19 until November 23, 2007.

Shares were repurchased at an average price of €21.19 for a total amount of €42.8 million. For detailed information on the daily repurchased shares, see the Wolters Kluwer website at
http://www.wolterskluwer.com/WK/Investors/Share+Information/Share+Buy-back+Programs/

The total number of shares repurchased under this program to date is 3,313,549 ordinary shares for a total consideration of €70.5 million.