<SEC-DOCUMENT>0001104659-23-017466-index.html : 20230209
<SEC-HEADER>0001104659-23-017466.hdr.sgml : 20230209
<ACCEPTANCE-DATETIME>20230209135300
ACCESSION NUMBER:		0001104659-23-017466
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20230209
DATE AS OF CHANGE:		20230209

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:		23605402

	BUSINESS ADDRESS:	
		STREET 1:		200 SANDPOINTE AVENUE
		STREET 2:		SUITE 700
		CITY:			SANTA ANA
		STATE:			CA
		ZIP:			92707
		BUSINESS PHONE:		657-335-3665

	MAIL ADDRESS:	
		STREET 1:		200 SANDPOINTE AVENUE
		STREET 2:		SUITE 700
		CITY:			SANTA ANA
		STATE:			CA
		ZIP:			92707

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
		CENTRAL INDEX KEY:			0001644956
		IRS NUMBER:				472614791
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		150 NORTH RIVERSIDE PLAZA
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606
		BUSINESS PHONE:		312-236-1600

	MAIL ADDRESS:	
		STREET 1:		150 NORTH RIVERSIDE PLAZA
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>tm235848d7_sc13ga.htm
<DESCRIPTION>SC 13G/A
<TEXT>
Document 1 - file: tm235848d7_sc13ga.htm

</DOCUMENT>
</SEC-DOCUMENT>