ITW · Illinois Tool Works Inc

This transaction was executed at multiple trades at prices ranging from $247.85 to $248.03. The price reported above reflects the weighted average sale price. Ms. Scanlon hereby undertakes to provide upon request to the SEC staff, ITW, or a shareholder of ITW full information regarding the number of shares and the prices at which the transaction was effected.

Includes 846 shares of deferred stock credited under the ITW Directors' Deferred Fee Plan as of June 2, 2026.

Represents shares of common stock acquired pursuant to the Issuer's 2024 Long Term Incentive Plan, including an annual stock grant and shares acquired in lieu of cash retainer.

Includes 6,778 shares of deferred stock under the ITW Directors' Deferred Fee Plan as of May 8, 2026.

Represents shares of common stock acquired pursuant to the Issuer's 2024 Long Term Incentive Plan in connection with the annual stock grant.

Includes 5,634 shares of deferred stock under the ITW Directors' Deferred Fee Plan as of May 8, 2026.

Represents shares of common stock acquired pursuant to the Issuer's 2024 Long Term Incentive Plan in connection with the annual stock grant.

Includes 2,463 shares acquired under a dividend reinvestment plan.

Represents shares of common stock acquired pursuant to the Issuer's 2024 Long Term Incentive Plan in connection with the annual stock grant.

Includes 32,565 shares of deferred stock under the ITW Directors' Deferred Fee Plan as of May 8, 2026.

Represents shares of common stock acquired pursuant to the Issuer's 2024 Long Term Incentive Plan, including an annual stock grant and shares acquired in lieu of cash retainer.

Includes 21,278 shares of deferred stock under the ITW Directors' Deferred Fee Plan as of May 8, 2026.

Represents shares of common stock acquired pursuant to the Issuer's 2024 Long Term Incentive Plan in connection with the annual stock grant.

Includes 17,604 shares of deferred stock under the ITW Directors' Deferred Fee Plan as of May 8, 2026.

Includes 8 shares owned jointly with his spouse and 2,575 shares held as tenants in common with his spouse through revocable trusts.

Represents shares of common stock acquired pursuant to the Issuer's 2024 Long Term Incentive Plan in connection with the annual stock grant.

Includes 16,516 shares of deferred stock under the ITW Directors' Deferred Fee Plan as of May 8, 2026.

Represents shares of common stock acquired pursuant to the Issuer's 2024 Long Term Incentive Plan, including an annual stock grant and shares acquired in lieu of cash retainer.

Includes 846 shares of deferred stock under the ITW Directors' Deferred Fee Plan as of May 8, 2026.

Represents shares of common stock acquired pursuant to the Issuer's 2024 Long Term Incentive Plan in connection with the annual stock grant.

Includes 7,787 shares of deferred stock under the ITW Directors' Deferred Fee Plan as of May 8, 2026.

Represents shares of common stock acquired pursuant to the Issuer's 2024 Long Term Incentive Plan, including an annual stock grant and shares acquired in lieu of cash retainer.

Represents shares of common stock acquired pursuant to the Issuer's 2024 Long Term Incentive Plan in connection with the annual stock grant.

Includes 211 shares of deferred stock under the ITW Directors' Deferred Fee Plan as of May 8, 2026.

Represents shares of common stock acquired pursuant to the Issuer's 2024 Long Term Incentive Plan in connection with the annual stock grant.

Options vested in four (4) equal annual installments beginning one year from date of grant.

Options vest in four (4) equal annual installments beginning one year from date of grant.

Options vest in four (4) equal annual installments beginning one year from date of grant.

Options vest in four (4) equal annual installments beginning one year from date of grant.

Options vest in four (4) equal annual installments beginning one year from date of grant.

Options vest in four (4) equal annual installments beginning one year from date of grant.

Options vest in four (4) equal annual installments beginning one year from date of grant.

Options vest in four (4) equal annual installments beginning one year from date of grant.

Options vest in four (4) equal annual installments beginning one year from date of grant.

Options vest in four (4) equal annual installments beginning one year from date of grant.

Options vest in four (4) equal annual installments beginning one year from date of grant.

Options vest in four (4) equal annual installments beginning one year from date of grant.

Each performance share unit represents a contingent right to receive one share of the Company's common stock.

Performance share units were certified and settled on February 12, 2026.

Common stock acquired upon settlement of performance share units and accrued dividend equivalents thereon, following certification of applicable performance metrics.

Each performance share unit represents a contingent right to receive one share of the Company's common stock.

Each performance share unit represents a contingent right to receive one share of the Company's common stock.

Performance share units were certified and settled on February 12, 2026.

Each performance share unit represents a contingent right to receive one share of the Company's common stock.

Performance share units were certified and settled on February 12, 2026.

Common stock acquired upon settlement of performance share units and accrued dividend equivalents thereon, following certification of applicable performance metrics.

Each performance share unit represents a contingent right to receive one share of the Company's common stock.

Each performance share unit represents a contingent right to receive one share of the Company's common stock.

Performance share units were certified and settled on February 12, 2026.

Includes 4,866 shares of deferred stock under the ITW Directors' Deferred Fee Plan as of February 12, 2026.

Common stock acquired upon settlement of performance share units and accrued dividend equivalents thereon, following certification of applicable performance metrics.

Each performance share unit represents a contingent right to receive one share of the Company's common stock.

Each performance share unit represents a contingent right to receive one share of the Company's common stock.

Performance share units were certified and settled on February 12, 2026.

Each performance share unit represents a contingent right to receive one share of the Company's common stock.

Performance share units were certified and settled on February 12, 2026.

Common stock acquired upon settlement of performance share units and accrued dividend equivalents thereon, following certification of applicable performance metrics.

Each performance share unit represents a contingent right to receive one share of the Company's common stock.

Common stock acquired upon settlement of performance share units and accrued dividend equivalents thereon, following certification of applicable performance metrics.

Each performance share unit represents a contingent right to receive one share of the Company's common stock.

Each performance share unit represents a contingent right to receive one share of the Company's common stock.

Performance share units were certified and settled on February 12, 2026.

Each performance share unit represents a contingent right to receive one share of the Company's common stock.

Performance share units were certified and settled on February 12, 2026.

Each performance share unit represents a contingent right to receive one share of the Company's common stock.

Performance share units were certified and settled on February 12, 2026.

Common stock acquired upon settlement of performance share units and accrued dividend equivalents thereon, following certification of applicable performance metrics.

Each performance share unit represents a contingent right to receive one share of the Company's common stock.

Each performance share unit represents a contingent right to receive one share of the Company's common stock.

Performance share units were certified and settled on February 12, 2026.