SEC FORM 4

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

CHOW JOSEPH W

(Last)

(First)

(Middle)

STATE STREET CORPORATION

ONE LINCOLN STREET

(Street)

BOSTON

02111

(City)

(State)

(Zip)

2. Issuer Name and Ticker or Trading Symbol
STATE STREET CORP [ STT ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	EVP, Head of Risk & Corp.Admin

3. Date of Earliest Transaction (Month/Day/Year)
04/22/2005

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	04/22/2005		M		8,000	A	$13.2031	18,125	D
Common Stock	04/22/2005		S		1,000	D	$45.3	17,125	D
Common Stock	04/22/2005		S		7,000	D	$45.27	10,125	D
Common Stock								4,369	I	401(k) Plan⁽¹⁾
Common Stock								1,000	I	By a family member⁽²⁾

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Employee Stock Option (right to buy)	$13.2031	04/22/2005		M			8,000	06/20/2001	06/21/2006	Common Stock	8,000	$13.2031	0	D
Employee Stock Option (right to buy)	$44.53							⁽³⁾	03/01/2015	Common Stock	42,400		42,400	D
Employee Stock Option (right to buy)	$15.875							12/19/1999	12/20/2006	Common Stock	24,000		24,000	D
Employee Stock Option (right to buy)	$33.7187							12/17/2001	12/18/2008	Common Stock	38,400		38,400	D
Employee Stock Option (right to buy)	$34.6406							12/16/2002	12/17/2009	Common Stock	50,000		50,000	D
Employee Stock Option (right to buy)	$60.7375							12/21/2003	12/22/2010	Common Stock	38,400		38,400	D
Employee Stock Option (right to buy)	$51.975							12/20/2004	12/21/2011	Common Stock	51,500		51,500	D
Employee Stock Option (right to buy)	$49.705							02/21/2004	02/22/2012	Common Stock	7,200		7,200	D
Employee Stock Option (right to buy)	$40.22							⁽⁴⁾	12/19/2012	Common Stock	40,000		40,000	D

Explanation of Responses:

1. The reporting person indirectly beneficially owns 4,369 shares of common stock of State Street Corporation through State Street Corporation's 401(k) plan, as of April 25, 2005. The plan accounts for interest in units of shares and a small amount of cash. As a result, the number of underlying shares may fluctuate from time to time.

2. Shares held in an IRA account by a member of the reporting person's family, with respect to which the reporting person disclaims beneficial ownership of any such shares.

3. Options become exercisable in 25% installments over a four-year period commencing on March 2, 2006.

4. Options become exercisable in 33 1/3% installments over a three-year period commencing on December 19, 2004.

Remarks:

	Richard P. Jacobson, Attorney-in-fact	04/26/2005
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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