ORION ENERGY SYSTEMS, INC.

PublicCIK: 1409375
OESXNASDAQ
Location

MANITOWOC, WI

13F Filings

Institutional Holders

ORION ENERGY SYSTEMS, INC.OESX— Latest position per institution from SEC 13F filings

15

Institutional holders

2.11M

Total shares held

17.04M

Estimated value

105.26K

Avg. position size

1

NORTH STAR INVESTMENT MANAGEMENT CORP.

CIK 1342857

Shares

525.55K

Value

4.59M

Filed

Mar 31, 2026

2

TIETON CAPITAL MANAGEMENT, LLC

CIK 1381954

Shares

266.48K

Value

2.33K

Filed

Mar 31, 2026

3

GRACE & WHITE INC /NY

CIK 903064

Shares

241.39K

Value

2.11M

Filed

Mar 31, 2026

4

RENAISSANCE TECHNOLOGIES LLC

CIK 1037389

Shares

178.47K

Value

1.56M

Filed

Mar 31, 2026

5

MYDA ADVISORS LLC

CIK 1589689

Shares

133.50K

Value

1.17M

Filed

Mar 31, 2026

6

SEI INVESTMENTS CO

CIK 350894

Shares

130.10K

Value

1.14M

Filed

Mar 31, 2026

7

VANGUARD GROUP INC

CIK 102909

Shares

129.96K

Value

2M

Filed

Dec 31, 2025

8

VANGUARD CAPITAL MANAGEMENT LLC

CIK 2100119

Shares

111.92K

Value

978.22K

Filed

Mar 31, 2026

9

MANATUCK HILL PARTNERS, LLC

CIK 1467902

Shares

71.43K

Value

624.28K

Filed

Mar 31, 2026

10

US BANCORP \DE\

CIK 36104

Shares

70.16K

Value

613.15K

Filed

Mar 31, 2026

11

MARSHALL WACE, LLP

CIK 1318757

Shares

56.92K

Value

497.52K

Filed

Mar 31, 2026

12

GEODE CAPITAL MANAGEMENT, LLC

CIK 1214717

Shares

40.10K

Value

350.53K

Filed

Mar 31, 2026

13

JANE STREET GROUP, LLC

CIK 1595888

Shares

27.15K

Value

237.29K

Filed

Mar 31, 2026

14

BLACKROCK, INC.

CIK 2012383

Shares

24.21K

Value

211.59K

Filed

Mar 31, 2026

15

BRIDGEWAY CAPITAL MANAGEMENT, LLC

CIK 1107261

Shares

23.94K

Value

209.24K

Filed

Mar 31, 2026

16

VANGUARD FIDUCIARY TRUST CO

CIK 933478

Shares

17.31K

Value

151.31K

Filed

Mar 31, 2026

17

PENBROOK MANAGEMENT LLC

CIK 1381055

Shares

16.64K

Value

145.80K

Filed

Sep 30, 2025

18

NEWEDGE ADVISORS, LLC

CIK 1633516

Shares

15.08K

Value

231.96K

Filed

Dec 31, 2025

19

ESSEX INVESTMENT MANAGEMENT CO LLC

CIK 201772

Shares

12.56K

Value

109.75K

Filed

Mar 31, 2026

20

TREXQUANT INVESTMENT LP

CIK 1633445

Shares

12.38K

Value

108.17K

Filed

Mar 31, 2026

Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.