Mastercard Class B Share Sales

EQ Shareowner Services

The information on this web page is intended for shareholders holding Class B shares of Mastercard Incorporated (the "Company") who are interested in selling their Class B shares. 

There is no requirement that you sell your shares. If, however, you wish to sell your Class B shares, please review the information provided below.

Sales Procedure

A Class B shareholder may convert Class B shares to Class A Shares and use the Mastercard Sales Facility provided by EQ Shareowner Services to sell those shares. Please note that EQ Shareowner Services will convert the Class B shares into Class A shares in accordance with the applicable 1 for 1 conversion rate for Class A shares for the settlement of such sales when they are sold into the public market.

Although Class B shares are eligible for sale at any time, outside of blackout periods, the Company reserves the right to restrict such sale if law prohibits it.

In order to complete a sale, please complete the below Mastercard Class B Conversion and Sale Request form and send to EQ Shareowner Services:

If you wish to update your account Authorized Individual, mailing address, account registration name, or need to update access to your Shareowner Online account, please complete the below Mastercard Account Information Change form and send to EQ Shareowner Services:


Read further details in EQ Shareowner Services Frequently Asked Questions (PDF*).

Contact Us

Please feel free to contact EQ Shareowner Services, where representatives are available to answer your questions Monday through Friday from 7:00 a.m. – 7:00 p.m. Central Time.

By Mail

EQ Shareowner Services
Attn: Mastercard Processing
P.O. Box 64874
St. Paul, MN 55164-0874

By Courier

EQ Shareowner Services
Attn: Mastercard Processing
1110 Centre Pointe Curve, Suite 101 
Mendota Heights MN 55120-4100


  • From within the U.S.: 1-800-837-7579
  • From outside the U.S.: +1-651-450-4064

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Neither Mastercard Incorporated, EQ Shareowner Services, nor any of their affiliates provides advice and makes no recommendations with respect to purchasing or selling investments. Any investment decision must be made by the individual plan participants guided by their own research and judgment. The information contained herein is for informational purposes only and does not constitute advice, a solicitation, or an offer to buy or sell investment securities.

Neither EQ Shareowner Services nor any of its affiliates guarantee the accuracy or completeness of the information contained herein and makes no express or implied warranties including any warranty or merchantability or fitness for a particular use. Neither EQ Shareowner Services nor any of its affiliates is liable for inaccuracies or omissions in the information contained herein or for actions taken in reliance on that information.

Investments, Insurance, and Identity theft protection products:

  • Are NOT insured by the FDIC or any other federal government agency
  • May lose value