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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * REARDON ANTHONY J   2. Issuer Name and Ticker or Trading Symbol DUCOMMUN INC /DE/ [DCO] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 23301 WILMINGTON AVENUE 3. Date of Earliest Transaction (Month/Day/Year) 02/23/2017 (Street) CARSON, CA 90745 4. If Amendment, Date 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 (City) (State) (Zip) 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 02/23/2017   M   11,000 A $ 24.9 128,924 D   Common Stock 02/23/2017   M   5,500 A $ 25.51 134,424 D   Common Stock 02/23/2017   M   28,125 A $ 22.84 162,549 D   Common Stock 02/23/2017   F   39,067 D $ 31.4 123,482 D

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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 Underlying Securities (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 of Derivative Security: 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 Buy (1)

$ 24.9

02/23/2017

M

11,000

03/18/2015(2)

03/17/2021

Common Stock

11,000

$ 0

11,000

D

Option - Right to Buy (1)

$ 25.51

02/23/2017

M

5,500

03/30/2016(3)

03/29/2022

Common Stock

5,500

$ 0

16,500

D

Option - Right to Buy (1)

$ 22.84

02/23/2017

M

28,125

07/31/2014(4)

07/30/2020

Common Stock

28,125

$ 0

9,375

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
REARDON ANTHONY J 23301 WILMINGTON AVENUE CARSON, CA 90745	X

Signatures

Anthony J. Reardon		02/27/2017
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	The option represents the right to purchase common stock granted under the Ducommun Incorporated Employee Stock Option Plans, which are Rule 16b-3plans.
(2)	The option vested or will vest as to 5,500 shares on each of March 18, 2015, 2016, 2017 and 2018.
(3)	The option vested or will vest as to 5,500 shares on each of March 30, 2016, 2017, 2018, and 2019.
(4)	The option vested or will vest as to 9,250 shares on each of July 31, 2014, 2015, 2016 and 2017.

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