Rajiv A. Tata - 04 Mar 2026 Form 4 Insider Report for DUCOMMUN INC /DE/ (DCO)

Role
V.P., G.C. & Corp. Secretary
Signature
Rajiv A. Tata
Issuer symbol
DCO
Transactions as of
04 Mar 2026
Net transactions value
$0
Form type
4
Filing time
06 Mar 2026, 17:02:39 UTC
Previous filing
23 Jun 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Tata Rajiv A. V.P., G.C. & Corp. Secretary 600 ANTON BLVD., SUITE 1100, COSTA MESA Rajiv A. Tata 06 Mar 2026 0001801226

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction DCO Common Stock Award +7,622 +26% $0.000000* 37,005 04 Mar 2026 Direct F1, F2, F3
transaction DCO Common Stock Tax liability -4,097 -11% $139.45* 32,908 04 Mar 2026 Direct F4
transaction DCO Common Stock Award +1,489 +4.5% $0.000000* 34,397 04 Mar 2026 Direct
transaction DCO Common Stock Tax liability -615 -1.8% $130.19* 33,782 05 Mar 2026 Direct F5
transaction DCO Common Stock Options Exercise +5,840 +17% $42.25* 39,622 05 Mar 2026 Direct
transaction DCO Common Stock Tax liability -3,958 -10% $139.45* 35,664 05 Mar 2026 Direct
transaction DCO Common Stock Options Exercise +2,500 +7% $40.44* 38,164 05 Mar 2026 Direct
transaction DCO Common Stock Tax liability -1,680 -4.4% $139.45* 36,484 05 Mar 2026 Direct
transaction DCO Common Stock Options Exercise +1,833 +5% $32.90* 38,317 05 Mar 2026 Direct
transaction DCO Common Stock Tax liability -1,186 -3.1% $139.45* 37,131 05 Mar 2026 Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction DCO Option - Right to Purchase Options Exercise +5,840 +20% $0.000000* 35,664 05 Mar 2026 Common Stock 1,882 $42.25 Direct F6, F7
transaction DCO Option - Right to Purchase Options Exercise +2,500 +7.4% $139.45* 36,484 05 Mar 2026 Common Stock 820 $40.44 Direct F8
transaction DCO Option - Right to Purchase Options Exercise +1,833 +5.2% $139.45* 37,131 05 Mar 2026 Common Stock 647 $32.90 Direct F9
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 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.
F2 Granted as compensation for services.
F3 The total number of securities listed includes 72 shares of common stock acquired on July 31, 2025 and 52 shares of common stock acquired on January 30, 2026, both through the Ducommun Incorporated Employee Stock Purchase Plan.
F4 Represents a reduction in shares to satisfy the tax withholding obligations of the Issuer with respect to the settlement, on March 4, 2026, of 7,622 performance stock units as described in footnote (1) above.
F5 Represents a reduction in shares to satisfy the tax withholding obligations of the Issuer with respect to the settlement, on March 5, 2026, of 1,143 restricted stock units.
F6 This option represents the right to purchase commun stock under Ducommun Incorporated's Stock Incentive Plan, which is a Rule 16b-3 plan.
F7 This option vested in one-third increments on each of June 17, 2020, 2021 and 2022.
F8 This option represents the right to purchase common stock under Ducommun Incorporated's Stock Incentive Plan, which is a Rule 16b-3 plan.
F9 This option vested in one-third increments on each of October 10, 2020, 2021 and 2022.