ORION ENERGY SYSTEMS INC (OESX) Institutional Ownership Changes & 13F Activity
ORION ENERGY SYSTEMS INC (OESX). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q3 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Aigh Capital Management Llc, Tieton Capital Management, Llc, Renaissance Technologies LLC, Vanguard Capital Management Llc, and Us Bancorp \De\.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Aigh Capital Management Llc | Buy | +407,000 | — | 407,000 | $12.41M | Q3 2026 | Nov 02, 2026 |
| Caitong International Asset Management Co., Ltd | Buy | +4 | — | 4 | $122.00 | Q3 2026 | Oct 29, 2026 |
| North Star Investment Management Corp. | Buy | +600 | +0.1% | 527,552 | $16.09M | Q3 2026 | Oct 27, 2026 |
| Grace & White Inc | Sell | -11,345 | -4.3% | 252,268 | $7.69M | Q3 2026 | Oct 23, 2026 |
| Sbi Securities Co., Ltd. | Sell | -9 | -29.0% | 22 | $671.00 | Q3 2026 | Oct 22, 2026 |
| Essex Investment Management Co Llc | Buy | +1,481 | +7.2% | 22,089 | $673.72K | Q3 2026 | Oct 19, 2026 |
| Farther Finance Advisors, Llc | Sell | -1,200 | -12.4% | 8,500 | $259.25K | Q3 2026 | Oct 08, 2026 |
| Sei Investments Co | Sell | -55,406 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Jane Street Group, Llc | Sell | -53,685 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Bridgeway Capital Management, Llc | Sell | -31,140 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Firsthand Capital Management, Inc. | Sell | -1,400 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Royal Bank Of Canada | Sell | -634 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Jones Financial Companies Lllp | Sell | -378 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Wells Fargo & Company/Mn | Sell | -200 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Osaic Holdings, Inc. | Sell | -119 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Barclays Plc | Sell | -1 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 14, 2026 |
| Renaissance Technologies LLC | Sell | -181,669 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 13, 2026 |
| Vanguard Capital Management Llc | Sell | -127,484 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 13, 2026 |
| Marshall Wace, Llp | Sell | -61,342 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 13, 2026 |
| Vanguard Fiduciary Trust Co | Sell | -22,796 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 13, 2026 |
| Morgan Stanley | Sell | -1,747 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 13, 2026 |
| Vanguard Global Advisers, Llc | Sell | -722 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 13, 2026 |
| Ubs Group Ag | Sell | -41 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 13, 2026 |
| Us Bancorp \De\ | Sell | -70,155 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 12, 2026 |
| Geode Capital Management, Llc | Sell | -38,125 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 12, 2026 |
| Jpmorgan Chase & Co | Sell | -591 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 12, 2026 |
| Harbour Investments, Inc. | Sell | -60 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 12, 2026 |
| Tieton Capital Management, Llc | Sell | -284,526 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 10, 2026 |
| National Bank Of Canada | Sell | -15 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 10, 2026 |
| Blackrock, Inc. | Sell | -36,890 | -100.0% | 0 | $0.00 | Q3 2026 | Aug 07, 2026 |
Frequently asked questions about OESX activity
Which institutional owners are buying OESX?
Institutional owners buying OESX include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in OESX activity?
"Buy" means an investor increased their reported position in OESX compared to the prior reporting period. This reflects growing exposure to ORION ENERGY SYSTEMS INC (OESX) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in OESX increasing?
Institutional interest in OESX can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.
Related OESX Institutional Insights
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