DUCOMMUN INC /DE/ — Director's Dealing 2013

May 3, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: DUCOMMUN INC /DE/ (DCO)
CIK: 0000030305
Period of Report: 2013-05-03

Reporting Person: WILLIAMS SAMUEL D (VP, Accounting)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-05-03	Common Stock	M	5000	$24.34	Acquired	10099	Direct
2013-05-03	Common Stock	F	4899	$25.40	Disposed	5200	Direct
2013-05-03	Common Stock	M	3750	$18.23	Acquired	8950	Direct
2013-05-03	Common Stock	F	3240	$25.40	Disposed	5710	Direct
2013-05-03	Common Stock	M	3000	$18.04	Acquired	8710	Direct
2013-05-03	Common Stock	F	2581	$25.40	Disposed	6129	Direct
2013-05-03	Common Stock	M	1750	$21.61	Acquired	7879	Direct
2013-05-03	Common Stock	F	1623	$25.40	Disposed	6256	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2013-05-03	Option - Right to Buy	$24.34	D	5000	Disposed	2015-06-17	Common Stock (5000)	Direct
2013-05-03	Option - Right to Buy	$18.23	D	3750	Disposed	2016-06-28	Common Stock (3750)	Direct
2013-05-03	Option - Right to Buy	$18.04	D	3000	Disposed	2017-06-22	Common Stock (3000)	Direct
2013-05-03	Option - Right to Buy	$21.61	D	1750	Disposed	2018-07-26	Common Stock (1750)	Direct

Footnotes

F1: The option represents the right to purchase common stock granted under the Ducommun Incorporated Employee Stock Option Plans, which are Rule 16b-3 plans.

F2: The option vested as to 1,250 shares on each of June 18, 2009, June 18, 2010, June 18, 2011 and June 18, 2012.

F3: The option vested or will vest as to 1,250 shares on each of June 29, 2010, June 29, 2011, June 29, 2012 and June 29, 2013.

F4: The option vested or will vest as to 1,500 shares on each of June 23, 2011, June 23, 2012, June 23, 2013 and June 23, 2014.

F5: The option vested or will vest as to 1,750 shares on each of July 27, 2012, July 27, 2013, July 27, 2014 and July 27, 2015.