Orion Energy Systems OESX Institutional Ownership

Ownership Summary

Orion Energy Systems, Inc. (NASDAQ:OESX) has 34 institutional investors that have filed 13F reports for the period ending March 2026.

• Collectively, these holders controlled 55.7% of Orion Energy Systems's outstanding shares in March 2026, up from 39.8% in December 2025.
• They increased total shares held in Orion Energy Systems by 56.24% from the prior quarter, while the number of investors in OESX decreased 19.05% year over year.
• Of these 34 holders, 22 added to their stakes in Orion Energy Systems, 3 trimmed positions, and 9 made no changes.
• Institutional investors collectively held 1.97Mn shares in Orion Energy Systems as of March 2026, up by 709.5K shares quarter on quarter, and up 505.1K shares year over year.
• As of March 31, 2026, the biggest holder of Orion Energy Systems is North Star Investment Management Corp. at 525.55K shares, representing 14.84% of shares outstanding.
• The largest buyers of Orion Energy Systems for the quarter ending March 2026 were MYDA Advisors LLC (133.5K), North Star Investment Management Corp. (118.1K), VANGUARD CAPITAL MANAGEMENT LLC (111.92K), Manatuck Hill Partners, LLC (71.43K), Sei Investments Co (69.39K).
• The largest sales of OESX for the quarter ending March 2026 came from Quadrature Capital Ltd (3.08K), OSAIC HOLDINGS, INC. (42), SBI Securities Co., Ltd. (5).
• Per Business Quant data, the top 10 holders of Orion Energy Systems for the quarter ending March 2026 are North Star Investment Management Corp. (525.55K), Tieton Capital Management, LLC (266.48K), GRACE & WHITE INC /NY (241.39K), RENAISSANCE TECHNOLOGIES LLC (178.47K), MYDA Advisors LLC (133.5K), Sei Investments Co (130.1K), VANGUARD CAPITAL MANAGEMENT LLC (111.92K), Manatuck Hill Partners, LLC (71.43K), Us Bancorp De (70.16K), MARSHALL WACE, LLP (56.92K).