# ORION ENERGY SYSTEMS INC Stock

ORION ENERGY SYSTEMS INC Stock is a security (CUSIP 686275207) tracked across SEC portfolio filings. 33 institutional managers reported $18.8M on Form 13F as of 2026-06-30; 2 registered fund positions totaling $297K via N-PORT as of 2026-03-31.

## Summary

- Issuer: ORION ENERGY SYSTEMS INC
- Class: Stock
- CUSIP: 686275207
- Asset category: EC
- 13F holders: 33
- 13F value: $18.8M
- 13F period: 2026-06-30
- N-PORT fund positions: 2
- N-PORT value: $297K
- N-PORT report: 2026-03-31

## Top institutional holders (Form 13F)

_Showing 15 of 33 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| North Star Investment Management Corp. | CHICAGO, IL | $6.2M | 526,952 |
| [GRACE & WHITE INC /NY](https://search.stillhousedata.com/firm/110761) | NY, NY | $3.1M | 263,613 |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $2.0M | 129,958 |
| [RENAISSANCE TECHNOLOGIES LLC](https://search.stillhousedata.com/firm/106661) | NEW YORK, NY | $1.6M | 178,469 |
| [MYDA Advisors LLC](https://search.stillhousedata.com/firm/168658) | WOODMERE, NY | $1.2M | 133,505 |
| SEI INVESTMENTS CO | OAKS, PA | $1.1M | 130,101 |
| [Manatuck Hill Partners, LLC](https://search.stillhousedata.com/firm/160689) | WESTPORT, CT | $624K | 71,428 |
| US BANCORP \\DE\\ | MINNEAPOLIS, MN | $613K | 70,155 |
| [MARSHALL WACE, LLP](https://search.stillhousedata.com/firm/160885) | LONDON, X0 | $498K | 56,924 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $351K | 40,098 |
| [ESSEX INVESTMENT MANAGEMENT CO LLC](https://search.stillhousedata.com/firm/109962) | BOSTON, MA | $241K | 20,608 |
| JANE STREET GROUP, LLC | NEW YORK, NY | $237K | 27,150 |
| BlackRock, Inc. | New York, NY | $212K | 24,209 |
| NewEdge Advisors, LLC | New Orleans, LA | $211K | 24,140 |
| [BRIDGEWAY CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/111441) | HOUSTON, TX | $209K | 23,940 |

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $273K | 0.03% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $25K | 0.00% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/686275207.md)
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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.