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
OMB APPROVAL
OMB Number: 3235-0287
Expires: January 31, 2005
Estimated average burden hours per response... 0.5

(Print or Type Responses)
1. Name and Address of Reporting Person *
NAGARAJAN SUNDARAM
  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)
04/25/2016
(Street)

GLENVIEW, IL 60026
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 04/25/2016   I   2,698 D $ 104.48 0 I See Footnote (1)
Common Stock               20,217 D  

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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. SEC 1474 (9-02)

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(2) 02/13/2025 Common Stock 21,056   21,056 D  
Employee Stock Option $ 78.59             02/14/2015(2) 02/14/2024 Common Stock 27,502   27,502 D  
Employee Stock Option $ 55.71             02/10/2013 02/10/2022 Common Stock 34,299   34,299 D  
Employee Stock Option $ 63.25             02/15/2014(2) 02/15/2023 Common Stock 37,301   37,301 D  
Employee Stock Option $ 91.88             02/12/2017(2) 02/12/2026 Common Stock 22,893   22,893 D  
Employee Stock Option $ 55.81             02/11/2012 02/11/2021 Common Stock 18,234   18,234 D  
Performance Restricted Stock Unit (granted 2/12/2016) (3) $ 0               (4)   (4) Common Stock 4,988   4,988 D  
Performance Restricted Stock Unit (granted 2/13/15) (3) $ 0               (4)   (4) Common Stock 4,410   4,410 D  
Performance Restricted Stock Unit (granted 2/14/2014) (3) $ 0               (4)   (4) Common Stock 5,301   5,301 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
NAGARAJAN SUNDARAM
ILLINOIS TOOL WORKS INC
155 HARLEM AVENUE
GLENVIEW, IL 60026
      Executive Vice President  

Signatures

 Sundaram Nagarajan by Janet O. Love, Deputy General Counsel & Assistant Secretary, Attorney-In-Fact POA on File   04/27/2016
**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) By 401(k) Plan.
(2) Options vest in four (4) equal annual installments beginning one year from date of grant.
(3) Each performance restricted stock unit (PRSU) represents a contingent right to receive one share of the Company's common stock.
(4) Each PRSU vests 100% three years from the date of grant if performance goals are met.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.