Form 13F-HR - Quarterly report filed by institutional managers, Holdings:
SEC Accession No. 0000201772-25-000005
Filing Date
2025-05-07
Accepted
2025-05-07 16:46:25
Documents
2
Period of Report
2025-03-31
Effectiveness Date
2025-05-07

Document Format Files

Seq Description Document Type Size
1 primary_doc.html 13F-HR  
1 primary_doc.xml 13F-HR 2058
2 essex13f2025q1a.html INFORMATION TABLE  
2 essex13f2025q1a.xml INFORMATION TABLE 159610
  Complete submission text file 0000201772-25-000005.txt   163002
Mailing Address 125 HIGH STREET SUITE 1803 BOSTON MA 02110
Business Address 125 HIGH STREET SUITE 1803 BOSTON MA 02110 6174824870
ESSEX INVESTMENT MANAGEMENT CO LLC (Filer) CIK: 0000201772 (see all company filings)

EIN.: 004260191 | State of Incorp.: DE | Fiscal Year End: 1130
Type: 13F-HR | Act: 34 | File No.: 028-00878 | Film No.: 25922198