MasterCard’s Class B Common Stock Voluntary Conversion Program – the Open Conversion Program is now in operation.

Click here for a detailed Description of the Open Conversion Program. Click here for Open Conversion Program FAQs. Participants must complete forms obtained from Computershare’s website and submit them by mail to Computershare. Prior activation of access to Computershare’s website is required.

Upcoming Blackout Periods for the Open Conversion Program

Conversion and Sale Instruction forms received by Computershare between July 2, 2013 and July 9, 2013 will be reviewed upon receipt and if approved the stock tendered will be converted on July 10, 2013.

Conversion and Transfer Instruction forms - no blackout period currently scheduled.

Retirement of Class M common stock

On June 1, 2010, the percentage of shares of Class B common stock first dropped below 15% of the aggregate outstanding shares of the Class A common stock and Class B common stock. Accordingly, pursuant to Article IV Section 4.3(G)(2)(b) of the MasterCard Incorporated Amended and Restated Certificate of Incorporation dated June 10, 2009, all outstanding shares of MasterCard Incorporated Class M common stock were automatically transferred to MasterCard Incorporated and are no longer available for issue or reissue. For more information please read the Form 8-K filed on June 2, 2010, available in the Investor Relations section of MasterCard’s corporate website.