Form 3 Filing for Matteo C. Pigozzo

This filing details the ownership of ILLINOIS TOOL WORKS INC (ITW) by Reporting Person Matteo C. Pigozzo, the VP & Chief Accounting Officer. As of July 1, 2026, Pigozzo directly holds 3669.412 shares of Common Stock, including 182.599 shares held in a Roth IRA. Additionally, 1097 shares are held indirectly through the ITW 401(k) Savings and Investment Plan. The filing also reports holdings of Restricted Stock Units (RSUs) granted on February 9, 2024, February 14, 2025, and February 13, 2026, scheduled to vest in 2027, 2028, and 2029, respectively. Each RSU represents a contingent right to one share of common stock, with dividend equivalents accruing upon vesting. The Power of Attorney document (Exhibit 24) indicates Anna Oliveira is acting as Attorney-in-Fact for Matteo C. Pigozzo in this filing.