Ducommun (NYSE: DCO) VP Rajiv Tata exercises options and gets stock awards

Rhea-AI Filing Summary

Ducommun Inc. executive Rajiv A. Tata reported mixed equity compensation activity, primarily involving stock option exercises, stock awards, and related tax withholding. On March 4, 2026, he acquired 7,622 common shares upon settlement of performance stock units and a further 1,489 shares as compensation, while 4,097 shares were withheld to cover taxes.

On March 5, 2026, he exercised several stock options into common stock, including blocks of 5,840, 2,500, and 1,833 shares granted under Ducommun’s Stock Incentive Plan. That same day, shares totaling 615, 3,958, 1,680, and 1,186 were disposed of solely to satisfy tax and exercise-price obligations, rather than open-market selling.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Tata Rajiv A.

(Last) (First) (Middle)

600 ANTON BLVD.

SUITE 1100

(Street)

COSTA MESA CA 92626

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
DUCOMMUN INC /DE/ [ DCO ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	V.P., G.C. & Corp. Secretary

3. Date of Earliest Transaction (Month/Day/Year)
03/04/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	03/04/2026		A		7,622(1)	A	$0(2)	37,005(3)	D
Common Stock	03/04/2026		F		4,097(4)	D	$139.45	32,908	D
Common Stock	03/04/2026		A		1,489	A	$0	34,397	D
Common Stock	03/05/2026		F		615(5)	D	$130.19	33,782	D
Common Stock	03/05/2026		M		5,840	A	$42.25	39,622	D
Common Stock	03/05/2026		F		3,958	D	$139.45	35,664	D
Common Stock	03/05/2026		M		2,500	A	$40.44	38,164	D
Common Stock	03/05/2026		F		1,680	D	$139.45	36,484	D
Common Stock	03/05/2026		M		1,833	A	$32.9	38,317	D
Common Stock	03/05/2026		F		1,186	D	$139.45	37,131	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Option - Right to Purchase(6)	$42.25	03/05/2026		M		5,840		06/17/2022(7)	06/17/2029	Common Stock	1,882	$0	35,664	D
Option - Right to Purchase(8)	$40.44	03/05/2026		M		2,500		10/10/2022	10/10/2029	Common Stock	820	$139.45	36,484	D
Option - Right to Purchase	$32.9	03/05/2026		M		1,833		10/10/2022(9)	10/10/2029	Common Stock	647	$139.45	37,131	D

Explanation of Responses:

1. 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.

2. Granted as compensation for services.

3. 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.

4. 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.

5. 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.

6. This option represents the right to purchase commun stock under Ducommun Incorporated's Stock Incentive Plan, which is a Rule 16b-3 plan.

7. This option vested in one-third increments on each of June 17, 2020, 2021 and 2022.

8. This option represents the right to purchase common stock under Ducommun Incorporated's Stock Incentive Plan, which is a Rule 16b-3 plan.

9. This option vested in one-third increments on each of October 10, 2020, 2021 and 2022.

	Rajiv A. Tata	03/06/2026
	** Signature of Reporting Person	Date
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FAQ

What insider transactions did Ducommun (DCO) executive Rajiv A. Tata report?

Rajiv A. Tata reported option exercises, stock awards, and tax-related share withholdings. He received common shares from performance stock units and compensation grants, exercised several stock option blocks, and had multiple share reductions strictly to cover exercise costs and tax obligations.

Were any of Rajiv A. Tata’s Ducommun (DCO) Form 4 transactions open-market sales?

No open-market sales are indicated. Dispositions coded “F” represent shares withheld to pay exercise prices or satisfy tax liabilities. The filing describes these as reductions in shares for issuer tax withholding, not discretionary selling into the market.

How many Ducommun (DCO) shares did Rajiv A. Tata acquire through awards on March 4, 2026?

On March 4, 2026, he acquired 7,622 common shares upon settlement of performance stock units plus 1,489 common shares granted as compensation. Footnotes explain these awards were under Ducommun’s Stock Incentive Plan after performance metrics for the units were satisfied.

What stock option activity did Rajiv A. Tata report for Ducommun (DCO) on March 5, 2026?

On March 5, 2026, he exercised options for blocks of 5,840, 2,500, and 1,833 shares of common stock. The options were granted under Ducommun’s Stock Incentive Plan and had vesting schedules that completed in prior years, enabling these exercises.

Why were Ducommun (DCO) shares withheld from Rajiv A. Tata in this Form 4?

Shares withheld were to satisfy tax and related obligations. Footnotes state that reductions in holdings on March 4 and 5, 2026 reflect shares used to cover the issuer’s tax withholding tied to performance stock unit and restricted stock unit settlements.

What do the Form 4 footnotes reveal about Rajiv A. Tata’s Ducommun (DCO) awards?

Footnotes note that performance stock units granted May 8, 2023 settled after meeting performance metrics, that some shares were granted as compensation, and that options come from a Rule 16b-3 Stock Incentive Plan with vesting completed in earlier years.