Shareholder letter

Unsponsored ADRs: As of October 10, 2008, the US Securities and Exchange Commission (SEC) published revisions to Exchange Act Rule 12g3-2(b) which permits depository institutions to establish unsponsored ADR programs without the participation of a non-US issuer. Adyen NV does not consent to the establishment of any unsponsored ADR program, and further does not authorize, endorse, support or encourage the creation of any such unsponsored ADR program in respect of its securities. Adyen NV will not actively, directly or indirectly participate in the creation of any unsponsored ADR program. Adyen NV specifically disclaims any liability whatsoever arising out of or in connection with any unsponsored ADR program. Adyen NV does not represent to any depository institution or any other person, nor should any depository institution or any person rely on a belief that the website of Adyen NV includes all published information in English or that Adyen NV otherwise satisfies the exemption criteria set forth in Exchange Act Rule 12g3-2(b)