<SEC-DOCUMENT>0001104659-21-020598-index.html : 20210211
<SEC-HEADER>0001104659-21-020598.hdr.sgml : 20210211
<ACCEPTANCE-DATETIME>20210211150557
ACCESSION NUMBER:		0001104659-21-020598
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20210211
DATE AS OF CHANGE:		20210211

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			HEALTHCARE SERVICES GROUP INC
		CENTRAL INDEX KEY:			0000731012
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-NURSING & PERSONAL CARE FACILITIES [8050]
		IRS NUMBER:				232018365
		STATE OF INCORPORATION:			PA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-35875
		FILM NUMBER:		21619019

	BUSINESS ADDRESS:	
		STREET 1:		3220 TILLMAN DRIVE
		STREET 2:		SUITE 300
		CITY:			BENSALEM
		STATE:			PA
		ZIP:			19020
		BUSINESS PHONE:		2159381661

	MAIL ADDRESS:	
		STREET 1:		3220 TILLMAN DRIVE
		STREET 2:		SUITE 300
		CITY:			BENSALEM
		STATE:			PA
		ZIP:			19020

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>tm216055-13_sc13ga.htm
<DESCRIPTION>SC 13G/A
<TEXT>
Document 1 - file: tm216055-13_sc13ga.htm

</DOCUMENT>
</SEC-DOCUMENT>