Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
SMITH HAROLD B
   2. Issuer Name and Ticker or Trading Symbol
NORTHERN TRUST CORP [NTRS] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
50 S. LA SALLE ST.		 3. Date of Earliest Transaction (Month/Day/Year)
10/19/2007
(Street)

CHICAGO, IL 60603		 4. If Amendment, Date 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
(City)
(State)
(Zip)
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)
Code V Amount (A) or (D) Price
Common Stock 10/19/2007   S   2,225 D $ 69.4 162,707 I By Trust
Common Stock 10/19/2007   S   79 D $ 69.4033 162,628 I By Trust
Common Stock 10/19/2007   S   79 D $ 69.4067 162,549 I By Trust
Common Stock 10/19/2007   S   105 D $ 69.4077 162,444 I By Trust
Common Stock 10/19/2007   S   185 D $ 69.41 162,259 I By Trust
Common Stock 10/19/2007   S   79 D $ 69.4133 162,180 I By Trust
Common Stock 10/19/2007   S   26 D $ 69.415 162,154 I By Trust
Common Stock 10/19/2007   S   132 D $ 69.42 162,022 I By Trust
Common Stock 10/19/2007   S   110 D $ 69.43 161,912 I By Trust
Common Stock 10/19/2007   S   277 D $ 69.44 161,635 I By Trust
Common Stock 10/19/2007   S   594 D $ 69.4442 161,041 I By Trust
Common Stock 10/19/2007   S   264 D $ 69.449 160,777 I By Trust
Common Stock 10/19/2007   S   581 D $ 69.45 160,196 I By Trust
Common Stock 10/19/2007   S   158 D $ 69.4517 160,038 I By Trust
Common Stock 10/19/2007   S   324 D $ 69.46 159,714 I By Trust
Common Stock 10/19/2007   S   53 D $ 69.485 159,661 I By Trust
Common Stock 10/19/2007   S   106 D $ 69.4875 159,555 I By Trust
Common Stock 10/19/2007   S   1,128 D $ 69.49 158,427 I By Trust
Common Stock 10/19/2007   S   106 D $ 69.495 158,321 I By Trust
Common Stock 10/19/2007   S   343 D $ 69.5 157,978 I By Trust
Common Stock 10/19/2007   S   105 D $ 69.5008 157,873 I By Trust
Common Stock 10/19/2007   S   333 D $ 69.51 157,540 I By Trust
Common Stock 10/19/2007   S   158 D $ 69.52 157,382 I By Trust
Common Stock 10/19/2007   S   354 D $ 69.5264 157,028 I By Trust
Common Stock 10/19/2007   S   53 D $ 69.53 156,975 I By Trust
Common Stock 10/19/2007   S   26 D $ 69.535 156,949 I By Trust
Common Stock 10/19/2007   S   64 D $ 69.5368 156,885 I By Trust
Common Stock 10/19/2007   S   369 D $ 69.54 156,516 I By Trust
Common Stock 10/19/2007   S   76 D $ 69.56 156,440 I By Trust
Common Stock 10/19/2007   S   660 D $ 69.5684 155,780 I By Trust (1)

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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 Underlying Securities
(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 of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)		 11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
SMITH HAROLD B
50 S. LA SALLE ST.
CHICAGO, IL 60603		   X      

Signatures

 Paul A. Bernacki Attorney-in-Fact for Harold B. Smith   10/23/2007
**Signature of Reporting Person Date

Explanation of Responses:

* 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).
(1) This Form 4 is being filed as Part 4 and is continued on two additional Form 4s as Parts 5 and 6 (due to the thirty row maximum allowed on Table I)

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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