Orion Energy Systems Inc
Ownership
Ownership Structure
Who owns Orion Energy Systems Inc (OESX)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 83.3% of the shares are freely tradable; institutional investors hold 50.2%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| North Star Investment Management Corp | 12.99 | 526,952 | +0.3 | 06/30/2026 |
| Tieton Capital Management, LLC | 7.01 | 284,526 | +6.8 | 06/30/2026 |
| Grace & White Inc | 6.50 | 263,613 | +9.2 | 06/30/2026 |
| Renaissance Technologies Corp | 4.40 | 178,469 | +32.4 | 03/31/2026 |
| MYDA Advisors LLC | 3.29 | 133,505 | +0.0 | 03/31/2026 |
| SEI Investments Co | 3.21 | 130,101 | +114.3 | 03/31/2026 |
| Vanguard Capital Management, LLC | 2.76 | 111,924 | +0.0 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| North Star Opportunity I | 7.27 | 295,000 | +0.0 | 07/31/2026 |
| Tieton Small Cap Value | 7.01 | 284,526 | +6.8 | 06/30/2026 |
| Vanguard MStar Total Stk Mkt Idx Invest | 2.09 | 84,610 | +0.0 | 07/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Green Scott A. | President and COO | 129,678 | 3,760,662 $ | Aug 11, 2026 | direct |
| Brodin J Per | EVP, CFO, CAO & Treasurer | 85,263 | 2,472,627 $ | Aug 11, 2026 | direct |
| Washlow Sally A. | Chief Executive Officer | 61,259 | 1,776,511 $ | Aug 11, 2026 | direct |
| Richstone Ellen B | Director | 35,897 | 1,041,013 $ | Aug 11, 2026 | direct |
| Otten Anthony L. | Director | 25,973 | 753,217 $ | Aug 11, 2026 | direct |
| Wishart-Smith Heather L | Director | 11,405 | 330,745 $ | Aug 20, 2026 | direct |
| Shapiro Richard A | Director | 9,219 | 267,351 $ | Aug 11, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 20, 2026 | Wishart-Smith Heather L | Director | Buy | 1,054 | 18.96 | 19,988 |
| Aug 11, 2026 | Wishart-Smith Heather L | Director | Other | 2,532 | 0.00 | – |
| Aug 11, 2026 | Washlow Sally A. | Chief Executive Officer | Other | 12,000 | 0.00 | – |
| Aug 11, 2026 | Shapiro Richard A | Director | Other | 2,532 | 0.00 | – |
| Aug 11, 2026 | Richstone Ellen B | Director | Other | 2,532 | 0.00 | – |
| Aug 11, 2026 | Otten Anthony L. | Director | Other | 2,532 | 0.00 | – |
| Aug 11, 2026 | Green Scott A. | President and COO | Other | 9,000 | 0.00 | – |
| Aug 11, 2026 | Brodin J Per | EVP, CFO, CAO & Treasurer | Other | 9,000 | 0.00 | – |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: September 22, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.