Orion Energy Systems, Inc.: which funds bought and sold

Institutions that bought and sold Orion Energy Systems shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.

Between March 31, 2026 and June 30, 2026, 20 institutions that filed 13F reports for both quarters added to or opened positions in Orion Energy Systems, and 11 cut or closed them. Together they sold a net 183K shares, −9.2% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 13K shares (+4.5%); index fund managers were net buyers of 32K shares (+16.4%). 5 opened a new position and 8 sold out entirely.

Bought, Q2 2026 20 institutions, 5 of them new holders Sold, Q2 2026 11 institutions, 8 of them sold out

Net change, all compared −183K shares (−9.2%)

Net change, active managers +13K shares (+4.5%), 4 bought, 1 sold

Buyers versus sellers

institutions compared, 41

20 bought 10 11 sold

Active managers and hedge funds 4 bought · 1 sold · +13K

Index fund managers 3 bought · 1 sold · +32K

Other institutions 13 bought · 9 sold · −227K

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
Jane Street Group, LLC	+27K +97.7%	54K	$627,578
Grace & White Inc	+22K +9.2%	264K	$3.1M
Tieton Capital Management, LLC	+18K +6.8%	285K	$3.3M
Vanguard Capital Management LLC Index funds	+16K +13.9%	127K	$1.5M
Blackrock, Inc. Index funds	+13K +52.4%	37K	$431,244
Quadrature Capital Ltd Hedge fund	+10K +100.6%	20K	$236,360
Farther Finance Advisors, LLC	+9,700 New position	9,700	$113,393
Essex Investment Management Co LLC	+8,051 +64.1%	21K	$240,908
Bridgeway Capital Management, LLC Active manager	+7,200 +30.1%	31K	$364,027
Vanguard Fiduciary Trust Co Index funds	+5,484 +31.7%	23K	$266,485
Marshall Wace, LLP Hedge fund	+4,418 +7.8%	61K	$717,088
Renaissance Technologies LLC Hedge fund	+3,200 +1.8%	182K	$2.1M
North Star Investment Management Corp.	+1,400 +0.3%	527K	$6.2M
Morgan Stanley	+870 +99.2%	1,747	$20,422
Royal Bank Of Canada	+634 New position	634	$7,000
Jpmorgan Chase & Co	+591 New position	591	$7,000
Jones Financial Companies LLLP	+250 +195.3%	378	$4,279
Harbour Investments, Inc.	+20 +50.0%	60	$701
National Bank Of Canada	+15 New position	15	$174
Barclays PLC	+1 New position	1	$12

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Quadrature Capital Ltd Hedge fund	+10K +100.6%	20K	$236,360
Bridgeway Capital Management, LLC Active manager	+7,200 +30.1%	31K	$364,027
Marshall Wace, LLP Hedge fund	+4,418 +7.8%	61K	$717,088
Renaissance Technologies LLC Hedge fund	+3,200 +1.8%	182K	$2.1M

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
Myda Advisors LLC	−134K Sold out	0	—
Sei Investments Co	−75K −57.4%	55K	$647,690
Manatuck Hill Partners, LLC	−71K Sold out	0	—
Newedge Advisors, LLC	−24K Sold out	0	—
Trexquant Investment LP Hedge fund	−12K Sold out	0	—
Xtx Topco Ltd	−11K Sold out	0	—
Geode Capital Management, LLC Index funds	−1,973 −4.9%	38K	$445,788
UBS Group AG	−379 −90.2%	41	$479
Tower Research Capital LLC (TRC)	−288 Sold out	0	—
Ifp Advisors, Inc	−3 Sold out	0	—
Citigroup Inc	−1 Sold out	0	—

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Trexquant Investment LP Hedge fund	−12K Sold out	0	—

New positions

largest by value

Institution	Shares	Value June 30, 2026
Farther Finance Advisors, LLC	9,700	$113,393
Jpmorgan Chase & Co	591	$7,000
Royal Bank Of Canada	634	$7,000
National Bank Of Canada	15	$174
Barclays PLC	1	$12

Sold out

largest by value

Institution	Shares	Value March 31, 2026
Myda Advisors LLC	134K	$1.2M
Manatuck Hill Partners, LLC	71K	$624,281
Newedge Advisors, LLC	24K	$210,985
Trexquant Investment LPHedge fund	12K	$108,166
Xtx Topco Ltd	11K	$97,836
Tower Research Capital LLC (TRC)	288	$2,517
Ifp Advisors, Inc	3	$26
Citigroup Inc	1	$9

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 34
Ten largest holders: 91.7%
Index fund managers: 12.4%
Active managers and hedge funds: 16.2%

Buying and selling by type of institution, March 31, 2026 to June 30, 2026
Type	Bought	Sold	New	Sold out	Net change in shares	Net %
Active managers and hedge funds	4	1	0	1	+13K	+4.5%
Index fund managers	3	1	0	0	+32K	+16.4%
Other institutions	13	9	5	7	−227K	−14.9%

Active managers and hedge funds: a list we maintain of about 400 well-known stock-picking firms and hedge funds, matched by SEC registration number (CIK) and checked against the filer names each quarter. Index fund managers: the large index houses, such as BlackRock, Vanguard, State Street, Geode and Northern Trust. Every other filer (banks, brokers, wealth managers, pension funds, insurers and firms not on the list) counts as another institution. A firm that files under several SEC registrations appears once for each.

What these filings can and cannot tell you

Form 13F lists the long positions in US-listed shares held by investment managers with more than $100 million in such holdings. Managers file it up to 45 days after each quarter ends, so this page shows what funds held at the end of each quarter, not what they are doing now: a position may have changed since. Short positions, most derivatives and smaller managers are not included, and a cut can mean a fund lost clients or rebalanced rather than a view on Orion Energy Systems.

Only managers that filed a holdings report for both quarters are compared (41 here). 1 other holder is left out: first-time or late filers, firms that changed their SEC registration, and filings that withheld positions under confidential treatment, any of which would otherwise look like a new position or a sale. Figures are as reported by each manager in the SEC's quarterly 13F data sets; option positions are excluded.

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