ESSEX INVESTMENT MANAGEMENT CO LLC
Position in OESX — Orion Energy Systems, Inc.
CIK 201772
BOSTON, MA
Position in OESX
as of Jun 30, 2026
· filed Aug 6, 2026
Position Value
$240,907
+$131,159 QoQ
Shares Held
20,608
+64.1% QoQ
Ownership
0.504%
of shares outstanding
% of Portfolio
0.03%
of 13F equity value
Holder Rank
#14
of 34 holders
Holding Since
Mar 2026
2 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in OESX Over Time
Shares Held
Position Value (USD)
Position in Electrical Equipment & Parts
Industrials · as of Jun 30, 2026ESSEX INVESTMENT MANAGEMENT CO LLC holds $5,825,111 across 8 Electrical Equipment & Parts names. OESX ranks #5 (4.1% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | AMPX |
Amprius Technologies, Inc.
|
284,595 | $3,944,486 | |
| 2 | ELVA |
Electrovaya Inc.
|
71,791 | $753,805 | |
| 3 | RFIL |
R F Industries Ltd
|
17,864 | $378,895 | |
| 4 | EOSE |
Eos Energy Enterprises, Inc.
|
60,425 | $355,299 | |
| 5 | OESX |
Orion Energy Systems, Inc.
This page
|
20,608 | $240,907 | |
| 6 | NVT |
nVent Electric plc
|
508 | $86,161 | |
| 7 | AYI |
Acuity Inc. (De)
|
131 | $49,342 | |
| 8 | CYATY |
Contemporary Amperex Technology Co., Limited/ADR
|
722 | $16,216 |
All Filings in OESX
Export CSV
2 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $240,907 | 20,608 | Shares | Sole | 2026-08-06 | |
| 2026-03-31 | $109,748 | 12,557 | Shares | Sole | 2026-05-11 | |
| No filing history on record for this holder in this stock. | ||||||