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Filing Detail
Form 13F-HR - Quarterly report filed by institutional managers, Holdings:
SEC Accession No. 0001172661-13-000218
Filing Date
2013-02-05
Accepted
2013-02-04 17:46:28
Documents
1
Period of Report
2012-12-31
Effectiveness Date
2013-02-05

Document Format Files

Seq Description Document Type Size
1 FORM 13F HOLDINGS REPORT EssexInvestments4q12.txt 13F-HR 45174
  Complete submission text file 0001172661-13-000218.txt   46263
Mailing Address 125 HIGH STREET 29TH FLOOR BOSTON MA 02110
Business Address 125 HIGH STREET 29TH FLOOR BOSTON MA 02110 6174824870
ESSEX INVESTMENT MANAGEMENT CO LLC (Filer) CIK: 0000201772 (see all company filings)

IRS No.: 004260191 | State of Incorp.: DE | Fiscal Year End: 1130
Type: 13F-HR | Act: 34 | File No.: 028-00878 | Film No.: 13571291