Transaction Details

Footnotes

Acquired upon the settlement of performance stock units granted on May 8, 2023 under the Ducommun Incorporated Stock Incentive Plan as a result of the satisfaction of performance metrics underlying the award. | Granted as compensation for services. | Represents a reduction in shares to satisfy the tax withholding obligations of the Issuer with respect to the settlement, on March 4, 2026, of 14,315 performance stock units as described in footnote (1) above. | Represents a reduction of shares to satisfy the tax withholding obligations of the Issuer with respect to the vesting, on March 5, 2026, of 2,532 restricted stock units. | This transaction was executed in multiple trades at prices ranging from $127.00 to $138.50. 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, full information regarding the number of shares and the prices at which the transaction was effectuated. | This option represents the right to purchase common stock under Ducommun Incorporated's Stock Incentive Plan, which is a Rule 16b-3 plan. | This option vested in one-third increments on each of June 17, 2020, 2021 and 2022.