STATE STREET CORP — Director's Dealing 2008

Mar 3, 2008

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: STATE STREET CORP (STT)
CIK: 0000093751
Period of Report: 2008-02-28

Reporting Person: Antonellis Joseph C (Vice Chairman)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2008-02-28	Common Stock	A	29291	—	Acquired	68904	Direct
2008-02-28	Common Stock	F	12042	$81.71	Disposed	56862	Direct
2008-02-28	Common Stock	A	29279	—	Acquired	86141	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2008-02-28	Stock Appreciation Right	$81.71	A	124395	Acquired	2018-02-27	Common Stock (124395)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	6629	Indirect

Footnotes

F1: Vesting of a performance award granted on March 1, 2006.

F2: These shares were withheld to satisfy tax withholding obligations in connection with the vesting of a performance award granted on March 1, 2006.

F3: Restricted stock award granted pursuant to State Street Corporation 2006 Equity Incentive Plan.

F4: The balance reflects the amount of shares beneficially owned, including shares received due to dividend reinvestment, as of the date of this report.

F5: The reporting person indirectly beneficially owns 6,629 shares of State Street common stock under State Street's 401(k) plan, based on a plan statement dated as of January 31, 2008. The plan accounts for interest in units consisting of shares of State Street common stock and a small amount of cash. As a result, the number of underlying shares may fluctuate from time to time.

F6: Stock appreciation right granted pursuant to State Street Corporation 2006 Equity Incentive Plan.

F7: Stock appreciation right becomes exercisable in four equal annual increments commencing February 28, 2009.