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
                                                                                  
OMB APPROVAL
OMB Number: 3235-0287
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

MARTEL ROLAND M 		2. Issuer Name and Ticker or Trading Symbol

ILLINOIS TOOL WORKS INC [ ITW ] 		5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ Director                      _____ 10% Owner
__ X __ Officer (give title below)      _____ Other (specify below)
Executive Vice President
(Last)          (First)          (Middle)

ILLINOIS TOOL WORKS INC., 155 HARLEM AVENUE 		3. Date of Earliest Transaction (MM/DD/YYYY)

2/15/2018
(Street)

GLENVIEW, IL 60025
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

 
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. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. 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   2/15/2018     M    4579   A $0   30801   D    
Common Stock   2/15/2018     F    1356   D $163.36   29445   D    

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3) 		2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. 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 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 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
Employee Stock Option   $78.59                    2/14/2015   2/14/2024   Common Stock   29702.0     29702   D    
Employee Stock Option   $63.25                    2/15/2014   2/15/2023   Common Stock   42387.0     42387   D    
Employee Stock Option   $55.81                    2/11/2012   2/11/2021   Common Stock   48622.0     48622   D    
Employee Stock Option   $55.71                    2/10/2013   2/10/2022   Common Stock   52265.0     52265   D    
Employee Stock Option   $91.88                    2/12/2017   (1) 2/12/2026   Common Stock   22477.0     22477   D    
Employee Stock Option   $98.26                    2/13/2016   (1) 2/13/2025   Common Stock   21865.0     21865   D    
Employee Stock Option   $128.0                    2/10/2018   (1) 2/10/2027   Common Stock   25158.0     25158   D    
Performance Restricted Stock Unit (granted 2/12/2016)   (2) $0.0                      (3)   (3) Common Stock   4897.0     4897   D    
Performance Restricted Stock Unit (granted 2/13/15)   (2) $0.0   2/15/2018     M         4579      (4)   (4) Common Stock   4579.0   $0   0   D    
Performance Share Units (granted 2/10/17)   (2) (5) $0.0                      (3)   (3) Common Stock   2686.0     2686   D    
Performance Share Units (granted 2/15/18)   (2) (5) $0.0   2/15/2018     A      2065         (3)   (3) Common Stock   2065.0   $0   2065   D    
Employee Stock Option   $163.36   2/15/2018     A      17605       2/15/2019   (1) 2/15/2028   Common Stock   17605.0   $0   17605   D    

Explanation of Responses:
(1)  Options vest in four (4) equal annual installments beginning one year from date of grant.
(2)  Each performance restricted stock unit (PRSU) and performance share unit (PSU) represents a contingent right to receive one share of the Company's common stock.
(3)  Each PRSU and PSU vests 100% three years from date of grant if performance goals are met.
(4)  The PRSU award became vested and payable on February 15, 2018.
(5)  PSUs accrue dividends in shares of common stock, subject to fulfillment of vesting period and performance goals; the PSUs shown include dividend equivalents, if any, accrued to date.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
MARTEL ROLAND M
ILLINOIS TOOL WORKS INC.
155 HARLEM AVENUE
GLENVIEW, IL 60025

Executive Vice President

Signatures
Roland M. Martel by Janet O. Love, Deputy General Counsel & Assistant Secretary, Attorney-In-Fact POA on File 2/20/2018
** 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.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.
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