Chief Operating Officer and Chief Compliance Officer

0001172661-18-000257.txt : 20180205 0001172661-18-000257.hdr.sgml : 20180205 20180205140508 ACCESSION NUMBER: 0001172661-18-000257 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20171231 FILED AS OF DATE: 20180205 DATE AS OF CHANGE: 20180205 EFFECTIVENESS DATE: 20180205 FILER: COMPANY DATA: COMPANY CONFORMED NAME: ESSEX INVESTMENT MANAGEMENT CO LLC CENTRAL INDEX KEY: 0000201772 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: 18573724 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 13F-HR 1 primary_doc.xml 13F-HR LIVE false true false 0000201772 XXXXXXXX 12-31-2017 12-31-2017 false ESSEX INVESTMENT MANAGEMENT CO LLC

125 High Street Suite 1803 Boston MA 02110

13F HOLDINGS REPORT 028-00878 N Michael McCarthy Chief Operating Officer and Chief Compliance Officer 617-342-3245 /s/ Michael McCarthy Boston MA 02-05-2018 0 355 758323 INFORMATION TABLE 2 infotable.xml 2U INC COM 90214J101 5620 87118 SH SOLE 85317 0 1801 AAR CORP COM 000361105 1680 42758 SH SOLE 29025 0 13733 ACUITY BRANDS INC COM 00508Y102 485 2756 SH SOLE 2756 0 0 ADAPTIMMUNE THERAPEUTICS PLC SPONDS ADR 00653A107 583 87307 SH SOLE 87307 0 0 ADESTO TECHNOLOGIES CORP COM 00687D101 1528 236875 SH SOLE 127376 0 109499 AERIE PHARMACEUTICALS INC COM 00771V108 4605 77072 SH SOLE 77072 0 0 AEROHIVE NETWORKS INC COM 007786106 71 12164 SH SOLE 12164 0 0 AEROVIRONMENT INC COM 008073108 1351 24060 SH SOLE 16210 0 7850 AGNICO EAGLE MINES LTD COM 008474108 10880 235609 SH SOLE 227197 0 8412 AIR TRANSPORT SERVICES GRP I COM 00922R105 1518 65610 SH SOLE 44369 0 21241 ALIBABA GROUP HLDG LTD SPONSORED ADS 01609W102 13108 76019 SH SOLE 74915 0 1104 ALLEGION PUB LTD CO ORD SHS G0176J109 424 5334 SH 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