Who owns ORION ENERGY SYSTEMS, INC.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of OESX from SEC Form 13F filings across 36 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 36 institutions disclosed 1.8M shares of ORION ENERGY SYSTEMS, INC. worth $17.9M — about 44.7% of shares outstanding; the largest disclosed holder is North Star Investment Management Corp.. Source: SEC Form 13F filings, parsed by EvidInvest.
36
13F holders
$17.9M
value, 2026 filers
44.7%
of shares outstanding (1.8M sh)
8
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of OESX's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | North Star Investment Management Corp. | 526,952 | $6.2M | 0.3% | 13% | +0.3% |
| 2 | Tieton Capital Management, LLC | 284,526 | $3,326 | 0.0% | 7% | +6.8% |
| 3 | GRACE & WHITE INC /NY | 263,613 | $3.1M | 0.5% | 6.5% | +9.2% |
| 4 | RENAISSANCE TECHNOLOGIES LLC | 181,669 | $2.1M | 0.0% | 4.5% | +1.8% |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | 127,484 | $1.5M | 0.0% | 3.1% | +13.9% |
| 6 | US BANCORP \DE\ | 70,155 | $820,112 | 0.0% | 1.7% | 0.0% |
| 7 | MARSHALL WACE, LLP | 61,342 | $717,088 | 0.0% | 1.5% | +7.8% |
| 8 | SEI INVESTMENTS CO | 55,406 | $647,690 | 0.0% | 1.4% | -57.4% |
| 9 | JANE STREET GROUP, LLC | 53,685 | $627,578 | 0.0% | 1.3% | +97.7% |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | 38,125 | $445,788 | 0.0% | 0.9% | -4.9% |
| 11 | BlackRock, Inc. | 36,890 | $431,244 | 0.0% | 0.9% | +52.4% |
| 12 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | 31,140 | $364,027 | 0.0% | 0.8% | +30.1% |
| 13 | VANGUARD FIDUCIARY TRUST CO | 22,796 | $266,485 | 0.0% | 0.6% | +31.7% |
| 14 | ESSEX INVESTMENT MANAGEMENT CO LLC | 20,608 | $240,908 | 0.0% | 0.5% | +64.1% |
| 15 | Quadrature Capital Ltd | 20,219 | $236,360 | 0.0% | 0.5% | +100.6% |
| 16 | Farther Finance Advisors, LLCNEW | 9,700 | $113,393 | 0.0% | 0.2% | new |
| 17 | MORGAN STANLEY | 1,747 | $20,422 | 0.0% | 0% | +99.2% |
| 18 | IAG Wealth Partners, LLC | 1,700 | $19,873 | 0.0% | 0% | 0.0% |
| 19 | Firsthand Capital Management, Inc. | 1,400 | $16,366 | 0.0% | 0% | 0.0% |
| 20 | Axiom Investment Management LLC | 1,206 | $14,098 | 0.0% | 0% | 0.0% |
| 21 | Vanguard Global Advisers, LLC | 722 | $8,440 | 0.0% | 0% | 0.0% |
| 22 | ROYAL BANK OF CANADANEW | 634 | $7,000 | 0.0% | 0% | new |
| 23 | JPMORGAN CHASE & CONEW | 591 | $7,000 | 0.0% | 0% | new |
| 24 | JONES FINANCIAL COMPANIES LLLP | 378 | $4,279 | 0.0% | 0% | +195.3% |
| 25 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 344 | $4,021 | 0.0% | 0% | 0.0% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.