<SEC-DOCUMENT>0000201772-24-000006-index.html : 20241010
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<ACCEPTANCE-DATETIME>20241010171537
ACCESSION NUMBER:		0000201772-24-000006
CONFORMED SUBMISSION TYPE:	13F-HR
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20240930
FILED AS OF DATE:		20241010
DATE AS OF CHANGE:		20241010
EFFECTIVENESS DATE:		20241010

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ESSEX INVESTMENT MANAGEMENT CO LLC
		CENTRAL INDEX KEY:			0000201772
		ORGANIZATION NAME:           	
		IRS NUMBER:				004260191
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1130

	FILING VALUES:
		FORM TYPE:		13F-HR
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	028-00878
		FILM NUMBER:		241365856

	BUSINESS ADDRESS:	
		STREET 1:		125 HIGH STREET
		STREET 2:		SUITE 1803
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02110
		BUSINESS PHONE:		6174824870

	MAIL ADDRESS:	
		STREET 1:		125 HIGH STREET
		STREET 2:		SUITE 1803
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02110

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ESSEX INVESTMENT MANAGEMENT CO INC
		DATE OF NAME CHANGE:	19920929
</SEC-HEADER>
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<DOCUMENT>
<TYPE>INFORMATION TABLE
<SEQUENCE>2
<FILENAME>essex13f2024q3.xml
<TEXT>
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