STATE STREET CORPORATION 4.30% Senior Notes Due 2014

Exhibit 4.1

FORM OF NOTE

THIS SECURITY IS A GLOBAL SECURITY WITHIN THE MEANING OF THE INDENTURE HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF A DEPOSITARY OR A NOMINEE THEREOF. THIS SECURITY MAY NOT BE EXCHANGED IN WHOLE OR IN PART FOR A SECURITY REGISTERED, AND NO TRANSFER OF THIS SECURITY IN WHOLE OR IN PART MAY BE REGISTERED, IN THE NAME OF ANY PERSON OTHER THAN SUCH DEPOSITARY OR A NOMINEE THEREOF, EXCEPT IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE INDENTURE.

Unless this certificate is presented by an authorized representative of The Depository Trust Company, a limited-purpose trust company organized under the New York Banking Law (“ DTC ”), to the Company or its agent for registration of transfer, exchange or payment, and any certificate issued is registered in the name of Cede & Co. or in such other name as is requested by an authorized representative of DTC (and any payment is made to Cede & Co. or to such other entity as is requested by an authorized representative of DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL inasmuch as the registered owner hereof, Cede & Co., has an interest herein.

State Street Corporation, a corporation duly organized and existing under the laws of The Commonwealth of Massachusetts (herein called the “ Company ,” which term includes any successor Person under the Indenture hereinafter referred to), for value received, hereby promises to pay to Cede & Co., or registered assigns, the principal sum of FIVE HUNDRED MILLION Dollars ($500,000,000) on May 30, 2014, and to pay interest thereon from May 22, 2009, or from the most recent Interest Payment Date to which interest has been paid or duly provided for, semi-annually in arrears on May 30 and November 30 in each year, commencing November 30, 2009, at the rate of 4.30% per annum, until the principal hereof is paid or made available for payment. The interest so payable, and punctually paid or duly provided for, on any Interest Payment Date will, as provided in such Indenture, be paid to the Person in whose name this Security (or one or more Predecessor Securities) is registered at the close of business on the Regular Record Date for such interest, which shall be May 15 or November 15 (whether or not a Business Day), as the case may be, next preceding such Interest Payment Date. Any such interest not so punctually paid or duly provided for will forthwith cease to be payable to the Holder on such Regular Record Date and may either be paid to the Person in whose name this Security (or one or more Predecessor Securities) is registered at the close of business on a Special Record Date for the payment of such Defaulted Interest to be

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fixed by the Trustee, notice whereof shall be given to Holders of Securities of this series not less than 10 days prior to such Special Record Date, or be paid at any time in any other lawful manner not inconsistent with the requirements of any securities exchange on which the Securities of this series may be listed, and upon such notice as may be required by such exchange, all as more fully provided in said Indenture.

Payment of the principal of (and premium, if any) and any such interest on this Security will be made at the office or agency of the Company maintained for that purpose in the City of Boston, Massachusetts (the “ Place of Payment ”), in such coin or currency of the United States of America as at the time of payment is legal tender for payment of public and private debts; provided that for so long as this Security is a Global Security, payment of the principal of (and premium, if any) and any interest on this Security will be made by the Paying Agent by wire transfer of immediately available funds to a separate account of the Depositary or its nominee at the Federal Reserve Bank of New York; provided that, in the case of payments made at maturity of such Global Security, the Global Security is presented to the Paying Agent in time for the Paying Agent to make such payments in accordance with its normal procedures.

Interest on this Security will be computed on the basis of a 360-day year comprised of twelve 30-day months. In the event that an Interest Payment Date is not a Business Day, the Company will pay interest on the next day that is a Business Day, with the same force and effect as if made on the Interest Payment Date, and without any interest or other payment with respect to the delay. If the date of maturity for this Security is not a Business Day, payment of principal and interest on this S