Initial Statement of Beneficial Ownership (Form 3)

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES 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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(Print or Type Responses)

1. Name and Address of Reporting Person * Pigozzo Matteo C. 2. Date of Event Requiring Statement (Month/Day/Year) 07/01/2026 3. Issuer Name and Ticker or Trading Symbol ILLINOIS TOOL WORKS INC [ITW] (Last) (First) (Middle) 155 HARLEM AVE. 4. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) VP & Chief Accounting Officer 5. If Amendment, Date Original Filed (Month/Day/Year) (Street) GLENVIEW, IL 60025 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 Beneficially Owned

1.Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5) Common Stock 3,669.412(1) D Common Stock 1,097 I See Footnote(2)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.			SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Units(3)	(4)	(4)	Common Stock	556.321	$255.75	D
Restricted Stock Units(3)	(5)	(5)	Common Stock	559.104	$258.11	D
Restricted Stock Units(3)	(6)	(6)	Common Stock	537.147	$299.6	D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Pigozzo Matteo C. 155 HARLEM AVE. GLENVIEW, IL 60025			VP & Chief Accounting Officer

Signatures

/s/ Anna Oliveira, Attorney-in-Fact for Matteo C. Pigozzo		07/01/2026
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 5(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 includes 182.599 shares of ITW Common Stock held directly in a Roth IRA account for the benefit of the Reporting Person. The Reporting Person exercises control over the IRA, and as such, has voting and investment power over these shares.
(2)	Shares of common stock held through the Reporting Person's ITW 401(k) Savings and Investment Plan, as of July 1, 2026.
(3)	Each restricted stock unit ("RSU") represents a contingent right to receive one share of common stock. Dividend equivalent units accrue with respect to the Reporting Person's restricted stock units and are payable upon vesting of the underlying RSU.
(4)	This RSU award was granted on February 9, 2024 and is scheduled to vest 100% on February 9, 2027.
(5)	This RSU award was granted on February 14, 2025 and is scheduled to vest 100% on February 14, 2028.
(6)	This RSU award was granted on February 13, 2026 and is scheduled to vest 100% on February 13, 2029.
Remarks: Exhibit 24. Power of Attorney

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