TKR · Timken Co

This transaction was executed in multiple trades at prices ranging from $130.77 to $131.60. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

This transaction was executed in multiple trades at prices ranging from $127.13 to $127.94. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

Grant of restricted stock units that vest 100% one year from date of grant.

Grant of restricted share units that vest 100% one year from date of grant.

Grant of restricted share units that vest 100% one year from date of grant.

Grant of restricted share units that vest 100% one year from date of grant.

Grant of restricted share units that vest 100% one year from date of grant.

This transaction was executed in multiple trades at prices ranging from $116.95 to $117.76. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

Grant of restricted share units that vest 100% one year from date of grant.

Grant of restricted share units that vest 100% one year from date of grant.

This transaction was executed in multiple trades at prices ranging from $116.48 to $117.25. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

Grant of restricted share units that vest 100% one year from date of grant.

Grant of restricted share units that vest 100% one year from date of grant.

Grant of restricted share units that vest 100% one year from date of grant.

Grant of restricted share units that vest 100% one year from date of grant.

Represents vesting of 100% of the time-based restricted share units granted on May 2, 2025.

The reporting person has elected to defer the receipt of such shares until a later date under the issuer's deferred compensation plan for directors.

Represents vesting of 100% of the time-based restricted share units granted on May 2, 2025.

Represents vesting of 100% of the time-based restricted share units granted on May 2, 2025.

Represents vesting of 100% of the time-based restricted share units granted on May 2, 2025.

Represents vesting of 100% of the time-based restricted share units granted on May 2, 2025.

Represents vesting of 100% of the time-based restricted share units granted on May 2, 2025.

Represents vesting of 100% of the time-based restricted share units granted on May 2, 2025.

Represents vesting of 100% of the time-based restricted share units granted on May 2, 2025.

The reporting person has elected to defer the receipt of such shares until a later date under the issuer's deferred compensation plan for directors.

Represents vesting of 100% of the time-based restricted share units granted on May 2, 2025.

The reporting person has elected to defer the receipt of such shares until a later date under the issuer's deferred compensation plan for directors.

Includes 96 shares received through dividend investment in 2025.

Represents vesting of 100% of the time-based restricted share units granted on May 2, 2025.

By self as beneficiary of the The Jane M Timken Irrev Trust.

Represents gift of shares by the reporting person's spouse (also reported in the subsequent line) to The Jane M Timken Irrev Trust with the reporting person as a beneficiary of that trust.

DISCLAIMER: Undersigned disclaims all beneficial ownership.

DISCLAIMER: Undersigned disclaims all beneficial ownership.

All transactions described in this report on Form 4 represent gifts by the reporting person and the reporting person's spouse made for estate planning purposes.

Represents gift of shares (also reported in the subsequent line) to the The Ward J Timken Jr Irrev Trust with the reporting person's spouse as a beneficiary.

DISCLAIMER: Undersigned disclaims all beneficial ownership.

By spouse as a beneficiary to the The Ward J Timken Jr Irrev Trust.

Represents gift of shares to the reporting person's spouse (also reported in the subsequent line).

1,825 stock options from 2/12/2018 grant of 5,650 stock options that vested in 25% increments per year from the date of grant.

This transaction was executed in multiple trades at prices ranging from $109.58 to $109.62. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

This transaction was executed in multiple trades at prices ranging from $106.93 to $107.75. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

This transaction was executed in multiple trades at prices ranging from $107.91 to $108.86. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

This transaction was executed in multiple trades at prices ranging from $106.37 to $106.95. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

Represents vesting of 25% of the time-based restricted share units granted on February 13, 2025.

Represents vesting of 25% of the time-based restricted share units granted on February 13, 2025.

Represents vesting of 25% of the time-based restricted share units granted on February 13, 2025.

Represents vesting of 25% of the time-based restricted share units granted on February 13, 2025.

Represents vesting of 25% of the time-based restricted share units granted on February 13, 2025.

Represents vesting of 25% of the time-based restricted share units granted on February 13, 2025.