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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1. Name and Address of Reporting Person * MARTINDALE STEVEN L   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 (Month/Day/Year) 02/10/2017 (Street) GLENVIEW, IL 60025 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               27,379 D

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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

Employee Stock Option

$ 98.26

02/13/2016(1)

02/13/2025

Common Stock

17,816

17,816

D

Employee Stock Option

$ 55.71

02/10/2013

02/10/2022

Common Stock

52,265

52,265

D

Employee Stock Option

$ 55.81

02/11/2012

02/11/2021

Common Stock

48,622

48,622

D

Employee Stock Option

$ 78.59

02/14/2015(1)

02/14/2024

Common Stock

24,202

24,202

D

Employee Stock Option

$ 63.25

02/14/2014(1)

02/15/2023

Common Stock

42,387

42,387

D

Employee Stock Option

$ 43.64

02/12/2011

02/12/2020

Common Stock

64,818

64,818

D

Performance Restricted Stock Unit (granted 2/13/15) (2)

$ 0

(3)

(3)

Common Stock

3,731

3,731

D

Performance Restricted Stock Unit (granted 2/14/2014) (2)

$ 0

(3)

(3)

Common Stock

4,665

4,665

D

Employee Stock Option

$ 91.88

02/12/2017(1)

02/12/2026

Common Stock

18,315

18,315

D

Performance Restricted Stock Unit (granted 2/12/2016) (2)

$ 0

(3)

(3)

Common Stock

3,990

3,990

D

Employee Stock Option

$ 128

02/10/2017

A

22,363

02/10/2018(1)

02/10/2027

Common Stock

22,363

$ 0

22,363

D

Performance Share Units (granted 2/10/17) (2)

$ 0

02/10/2017

A

2,343

(3)

(3)

Common Stock

2,343

$ 0

2,343

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
MARTINDALE STEVEN L ILLINOIS TOOL WORKS INC. 155 HARLEM AVENUE GLENVIEW, IL 60025			Executive Vice President

Signatures

Steven L. Martindale by Janet O. Love, Deputy General Counsel & Assistant Secretary, Attorney-In-Fact POA on File		02/14/2017
**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)	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 the date of grant if performance goals are met.

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