Orion Energy Systems, Inc.
OESX- Exchange
- Nasdaq
- Industry
- Electric Lighting & Wiring Equipment
- SEC CIK
- 0001409375
In the last 90 days, Orion Energy Systems, Inc. insiders filed 1 open-market purchase and 0 sales; 34 institutions reported holding it in 13F filings for Q2 2026, worth $21.2M in total; no superinvestor holds it.
Holders of 5% or more of OESX
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Orion Energy Systems, Inc., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| North Star Investment Management Corp. | 13G/A | 12.99%527.0K shares | −1.94 ppfrom 14.93% | Jan 5, 20216 filings | Jul 2, 2026 | SEC |
| Connors Kathleen Marie | 13G | 7.50%2.66M shares | New | Aug 15, 20251 filing | Aug 15, 2025 | SEC |
| Tieton Capital Management, LLC | 13G/A | 6.60%266.7K shares | −1.50 ppfrom 8.10% | Feb 11, 20252 filings | May 13, 2026 | SEC |
| Grace & White Inc | 13G/A | 6.34%223.8K shares | −2.13 ppfrom 8.47% | Feb 5, 20252 filings | Jan 27, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
21 Schedule 13D and 13G filings on Orion Energy Systems, Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Jul 2, 202612:52 PM ET | North Star Investment Management Corp. | 13G/A | 12.99%527.0K shares | −1.94 ppfrom 14.93% | Jul 2, 2026 | SEC |
| May 13, 20262:01 PM ET | Tieton Capital Management, LLC | 13G/A | 6.60%266.7K shares | −1.50 ppfrom 8.10% | Mar 31, 2026 | SEC |
| Apr 6, 202611:47 AM ET | North Star Investment Management Corp. | 13G/A | 14.93%525.6K shares | +1.21 ppfrom 13.72% | Apr 6, 2026 | SEC |
| Mar 3, 202612:08 PM ET | North Star Investment Management Corp. | 13G/A | 13.72%483.1K shares | +2.44 ppfrom 11.28% | Mar 3, 2026 | SEC |
| Jan 27, 20265:16 PM ET | Grace & White Inc | 13G/A | 6.34%223.8K shares | −2.13 ppfrom 8.47% | Dec 31, 2025 | SEC |
| Aug 15, 202511:36 AM ET | Connors Kathleen Marie | 13G | 7.50%2.66M shares | New | Jul 16, 2024 | SEC |
| May 2, 20254:22 PM ET | Acuitas Investments, LLC | 13G/A | 3.09%1.02M shares | −2.12 ppfrom 5.21%Below 5% | Mar 31, 2025 | SEC |
| Feb 11, 20255:00 PM ET | Tieton Capital Management, LLC | 13G/A | 8.10%2.66M shares | – | Dec 31, 2024 | SEC |
| Feb 5, 20254:55 PM ET | Grace & White Inc | 13G/A | 8.47%2.79M shares | – | Dec 31, 2024 | SEC |
| Feb 3, 20254:34 PM ET | Acuitas Investments, LLC | 13G | 5.21%1.72M shares | New | Dec 31, 2024 | SEC |
| Jan 7, 20254:39 PM ET | North Star Investment Management Corp. | 13G/A | 11.28%3.71M shares | – | Dec 31, 2024 | SEC |
| Feb 11, 2022 | Renaissance Technologies LLC | 13G/AOld format | – | – | – | SEC |
| Jan 7, 2022 | North Star Investment Management Corp. | 13G/AOld format | – | – | – | SEC |
| Jan 4, 2022 | BNP Paribas Asset Management UK Ltd | 13G/AOld format | – | – | – | SEC |
| Oct 5, 2021 | BNP Paribas Asset Management UK Ltd | 13G/AOld format | – | – | – | SEC |
| Jul 12, 20218:29 AM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
| Mar 3, 2021 | BNP Paribas Asset Management UK Ltd | 13G/AOld format | – | – | – | SEC |
| Feb 11, 2021 | Renaissance Technologies LLC | 13G/AOld format | – | – | – | SEC |
| Feb 9, 2021 | BNP Paribas Asset Management UK Ltd | 13GOld format | – | New | – | SEC |
| Feb 2, 20212:56 PM ET | BlackRock Inc. | 13GOld format | – | New | – | SEC |
| Jan 5, 2021 | North Star Investment Management Corp. | 13G/AOld format | – | – | – | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Orion Energy Systems, Inc. shares.
No Form 144 notices for Orion Energy Systems, Inc. are on file.