ADECCO HAS BEEN INFORMED THAT JACOBS GROUP HAS AUTHORIZED THE SALE OF APPROXIMATELY 16% OF ADECCO ISSUED SHARES

Adecco S.A. has been informed, that the Jacobs group (comprising Jacobs family members, Jacobs Holding AG, Jacobs Foundation and other affiliated entities), holders of a combined 34.9 million registered shares or approximately 18.4% of Adecco S.A., has authorized the sale of just over 30.2 million Adecco Shares corresponding to approximately 16.0% of Adecco.