IMPORTANT INFORMATION PERTAINING TO ONE OF YOUR SECURITIES

        RIDGE CLEARING & OUTSOURCING INC.

        Dear Customer:

        This is information regarding  A TENDER OFFER 
        for ACTIVISION BLIZZARD INC
        The offer is made by ACTIVISION BLIZZARD INC

The offer expires on   08/13/2008 05:00 PM ET

You must reply by:  08/11/2008   11:59 PM ET

        Your position in the above security is currently being held in your account at our firm and is the subject of a corporate reorganization. The terms and conditions of this offer are outlined in the offer material (click here to see the offer material). Should you wish to participate in the offer, we will forward your instructions. In order to submit instructions electronically we must receive your instructions by 11:59 PM ET on the reply date specified. Any instructions submitted after the reply date must be received by us via mail or telephone and will be processed on a "best efforts" basis.

        Additional shares purchased or received following receipt of this notice will require separate instructions to be submitted. You are responsible for canceling any open sell orders and verifying any option positions pertaining to this security. We will not be held liable for any short positions resulting from acting on your instructions.

        Please be advised that we cannot act in absence of instructions, and will not be held liable for any instructions that are received after the reply date. The reply date is prior to the expiration of the offer in order to properly fulfill your instructions.

        Please note most offers can be amended, terminated, or extended without further notice to shareholders. This is permitted because in most cases only a public announcement of the change is required. Therefore, it is advisable to review authoritative financial publications to stay informed of any changes. Should additional material with regard to the offer be provided to us on a timely basis, we will mail this information to you whenever possible. However, if we do not receive any additional material or insufficient material is provided to us, you may not receive notification from us regarding an important change to the terms or conditions of this offer. Any information given to us, either verbally or in writing, is intended as a guide and is not to be used as the basis for any decision regarding this offer. You are responsible for full compliance with the terms of this offer. In the event of a discrepancy between these terms and the offer material, the offer material will prevail.

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        Please note: 
        WE WILL ASSUME NO LIABILITY IN THE EVENT A LATE INSTRUCTION IS RECEIVED - IT WILL BE PROCESSED ON A BEST EFFORTS BASIS. WITHDRAWAL INSTRUCTIONS (IF ALLOWED) MUST BE RECEIVED IN WRITING NO LATER THAN 48 HOURS PRIOR TO EXPIRATION. IN THE ABSENCE OF YOUR WRITTEN INSTRUCTIONS, NO ACTION WILL BE TAKEN ON OUR PART. FUNDS MUST BE AVAILABLE IN YOUR ACCOUNT IN ORDER TO PROCESS RIGHTS AND WARRANT SUBSCRIPTIONS. A $30.00 PROCESSING FEE WILL APPLY TO ALL VOLUNTARY TRANSACTIONS. FAX #: (916) 858-8814 ATTN: REORG ***PLEASE CONSIDER THE $30.00 PROCESSING FEE IN DETERMINING PARTICIPATION IN ODD LOT OFFERS.***