Joseph L. Hooley Chairman, President and Chief Executive Officer April 4, 2013 Dear Shareholder: We cordially invite you to attend the 2013 annual meeting of shareholders of State Street Corporation. The meeting will be held at One Lincoln Street, 36th Floor, Boston, Massachusetts, on Wednesday, May 15, 2013, at 10:00 a.m. Details regarding admission to the meeting and the business to be conducted are more fully described in the accompanying notice of annual meeting and proxy statement. Your vote is very important. Whether or not you plan to attend the meeting, please carefully review the enclosed proxy statement and then cast your vote. We urge you to vote regardless of the number of shares you hold. Please mark, sign, date and mail promptly the accompanying proxy card. If you hold your shares in “street name,” meaning they are held for your account by a broker, bank or other nominee, you will receive separate voting instructions for your shares from your broker, bank or other nominee. Registered shareholders may also vote electronically by telephone or over the Internet by following the instructions included with your proxy card. For shares held in “street name,” please follow the relevant instructions for telephone and Internet voting provided by the broker, bank or other nominee. To be sure that your vote will be received in time, please cast your vote by your choice of available means at your earliest convenience. We are pleased to take advantage of the Securities and Exchange Commission rule allowing companies to furnish proxy materials to their shareholders over the Internet. We believe that this e-proxy process expedites shareholders’ receipt of proxy materials and lowers the costs and reduces the environmental impact of the annual meeting. Shareholders receiving e-proxy materials have been sent a notice containing instructions on how to access the proxy statement and annual report over the Internet and how to vote. We look forward to seeing you at the annual meeting. Your continuing interest in State Street is very much appreciated. Sincerely, PLEASE NOTE: If you plan to attend the meeting, please allow time for registration and security clearance. You will be asked to present a valid picture identification acceptable to our security personnel, such as a driver’s license or passport. If your State Street shares are held in “street name” through a broker, bank or other nominee, you should also bring proof of beneficial ownership (for further details, see “Meeting Admission” in the attached Notice of State Street Corporation 2013 Annual Meeting of Shareholders). For security reasons, you and your bags are subject to search prior to your admittance to the meeting, and no large bags, packages or electronic devices, including cell phones, are permitted in the meeting. Public fee-based parking is available at State Street’s headquarters at One Lincoln Street (entrance from Kingston Street). Other public fee-based parking facilities available near One Lincoln Street include the LaFayette Corporate Center and the Hyatt Hotel (entrances from Rue de LaFayette). South Station is the closest MBTA station to One Lincoln Street. State Street Corporation One Lincoln Street Boston, MA 02111-2900