ESSEX INVESTMENT MANAGEMENT CO LLC: CECO position timeline
Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of ESSEX INVESTMENT MANAGEMENT CO LLC on CECO, newest first. How the timeline and the estimate are built.
ESSEX INVESTMENT MANAGEMENT CO LLC held 150,416 CECO shares at 2026-06-30 per its 13F-HR filed 2026-08-06.
the latest 13F is the newest step
- period ended2026-06-3013F 150,416 sharesChange vs previous 13F -6,830 shares
1.79% of the 13F portfolio, value $13,648,748.
13F-HR 0000201772-26-000005 filed by ESSEX INVESTMENT MANAGEMENT CO LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2026-03-3113F 157,246 sharesChange vs previous 13F +2,789 shares
1.48% of the 13F portfolio, value $9,368,717.
13F-HR 0000201772-26-000004 filed by ESSEX INVESTMENT MANAGEMENT CO LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-12-3113F 154,457 sharesChange vs previous 13F -3,523 shares
1.41% of the 13F portfolio, value $9,244,251.
13F-HR 0000201772-26-000001 filed by ESSEX INVESTMENT MANAGEMENT CO LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-09-3013F 157,980 sharesChange vs previous 13F +5,237 shares
1.24% of the 13F portfolio, value $8,088,576.
13F-HR 0000201772-25-000008 filed by ESSEX INVESTMENT MANAGEMENT CO LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-06-3013F 152,743 sharesChange vs previous 13F -1,103 shares
0.79% of the 13F portfolio, value $4,324,154.
13F-HR 0000201772-25-000006 filed by ESSEX INVESTMENT MANAGEMENT CO LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-03-3113F 153,846 sharesChange vs previous 13F -1,200 shares
0.73% of the 13F portfolio, value $3,507,689.
13F-HR 0000201772-25-000005 filed by ESSEX INVESTMENT MANAGEMENT CO LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2024-12-3113F 155,046 sharesChange vs previous 13F -53,380 shares
0.84% of the 13F portfolio, value $4,687,041.
13F-HR 0000201772-25-000001 filed by ESSEX INVESTMENT MANAGEMENT CO LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2024-09-3013F 208,426 sharesChange vs previous 13F not available
1.02% of the 13F portfolio, value $5,877,613.
13F-HR 0000201772-24-000006 filed by ESSEX INVESTMENT MANAGEMENT CO LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).