<SEC-DOCUMENT>0001037389-20-000113-index.html : 20200213
<SEC-HEADER>0001037389-20-000113.hdr.sgml : 20200213
<ACCEPTANCE-DATETIME>20200212182247
ACCESSION NUMBER:		0001037389-20-000113
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20200213
DATE AS OF CHANGE:		20200212

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			DUCOMMUN INC /DE/
		CENTRAL INDEX KEY:			0000030305
		STANDARD INDUSTRIAL CLASSIFICATION:	AIRCRAFT PART & AUXILIARY EQUIPMENT, NEC [3728]
		IRS NUMBER:				950693330
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-17994
		FILM NUMBER:		20606090

	BUSINESS ADDRESS:	
		STREET 1:		23301 WILMINGTON AVE.
		CITY:			CARSON
		STATE:			CA
		ZIP:			90745
		BUSINESS PHONE:		3105137280

	MAIL ADDRESS:	
		STREET 1:		23301 WILMINGTON AVE.
		CITY:			CARSON
		STATE:			CA
		ZIP:			90745

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			RENAISSANCE TECHNOLOGIES LLC
		CENTRAL INDEX KEY:			0001037389
		IRS NUMBER:				260385758
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		800 THIRD AVE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
		BUSINESS PHONE:		2124866780

	MAIL ADDRESS:	
		STREET 1:		800 THIRD AVE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	RENAISSANCE TECHNOLOGIES CORP
		DATE OF NAME CHANGE:	19990324
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>dco-13g_20191231.txt
<TEXT>
Document 1 - file: dco-13g_20191231.txt

</DOCUMENT>
</SEC-DOCUMENT>