Latest Period
Q1 2026
Security Snapshot
ORION ENERGY SYSTEMS, INC. - Common stock, no par value (OESX) Institutional Ownership
CUSIP: 686275207
13F Institutional Holders and Ownership History from Q3 2025 to Q1 2026
Institutions Reporting
36
Shares (Excl. Options)
1,996,475
Price
$8.74
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- Security type / class
- Equity / Common stock, no par value
- Symbol
- OESX on Nasdaq
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 1,996,475
- Total 13F value
- $17,449,328
- Portfolio coverage rank
- 0%
- Share change
- +586,566
- Value change
- +$5,113,100
- Number of holders
- 36
- Shares outstanding
- 3,530,710
- SEC-reported price per share
- $8.74
- Insider filing price
- $8.74
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- OESX - ORION ENERGY SYSTEMS, INC. - Common stock, no par value is tracked under CUSIP 686275207.
- 36 institutions reported positions in Q1 2026.
- 1 significant owner is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 26 to 36 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $21,665,706 to $17,449,328.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 36 institutions filings for Q1 2026.
Security key
686275207
Latest holder period
Q1 2026
13F holders
36
13D/G owners
1
CIK / CUSIP context first
Open Q1 2026 holders
OESX full holder history
ORION ENERGY SYSTEMS, INC. SEC filings
ORION ENERGY SYSTEMS, INC. company facts
ORION ENERGY SYSTEMS, INC. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 686275207:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
1
Security
OESX
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| GRACE & WHITE INC /NY | 6.3% | $3,612,891 | 223,847 | Grace & White, Inc. | 31 Dec 2025 |
As of 31 Mar 2026, 36 institutional investors reported holding 1,996,475 shares of ORION ENERGY SYSTEMS, INC. - Common stock, no par value (OESX). This represents 57% of the company’s total 3,530,710 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
57%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| North Star Investment Management Corp. | 15% | 525,552 | +29% | 0.28% | $4,593,324 |
| Tieton Capital Management, LLC | 7.5% | 266,476 | +4% | 0.78% | $2,329,000 |
| GRACE & WHITE INC /NY | 6.8% | 241,387 | +9.2% | 0.37% | $2,109,722 |
| RENAISSANCE TECHNOLOGIES LLC | 5.1% | 178,469 | +32% | 0% | $1,559,819 |
| MYDA Advisors LLC | 3.8% | 133,505 | 0.28% | $1,166,834 | |
| SEI INVESTMENTS CO | 3.7% | 130,101 | +114% | 0% | $1,137,083 |
| VANGUARD CAPITAL MANAGEMENT LLC | 3.2% | 111,924 | 0% | 0% | $978,216 |
| Manatuck Hill Partners, LLC | 2% | 71,428 | 0.2% | $624,281 | |
| US BANCORP \DE\ | 2% | 70,155 | +20% | 0% | $613,155 |
| MARSHALL WACE, LLP | 1.6% | 56,924 | +24% | 0% | $497,516 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.1% | 40,098 | +15% | 0% | $350,530 |
| JANE STREET GROUP, LLC | 0.77% | 27,150 | 0% | $237,291 | |
| BlackRock, Inc. | 0.69% | 24,209 | 0% | 0% | $211,587 |
| NewEdge Advisors, LLC | 0.68% | 24,140 | +60% | 0% | $210,985 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 0.68% | 23,940 | 0% | $209,236 | |
| VANGUARD FIDUCIARY TRUST CO | 0.49% | 17,312 | 0% | 0% | $151,307 |
| ESSEX INVESTMENT MANAGEMENT CO LLC | 0.36% | 12,557 | 0.02% | $109,748 | |
| Trexquant Investment LP | 0.35% | 12,376 | 0% | $108,166 | |
| XTX Topco Ltd | 0.32% | 11,194 | 0% | $97,836 | |
| Quadrature Capital Ltd | 0.29% | 10,080 | -23% | 0% | $88,099 |
| IAG Wealth Partners, LLC | 0.05% | 1,700 | 0% | 0% | $14,858 |
| Firsthand Capital Management, Inc. | 0.04% | 1,400 | 0% | 0.03% | $12,236 |
| Axiom Investment Management LLC | 0.03% | 1,206 | 0% | 0.01% | $10,540 |
| MORGAN STANLEY | 0.02% | 877 | 0% | 0% | $7,665 |
| Vanguard Global Advisers, LLC | 0.02% | 722 | 0% | 0% | $6,310 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
3
Latest
Q1 2026
Rows shown
1-3 of 3