J. Per Brodin - 27 Feb 2026 Form 4 Insider Report for ORION ENERGY SYSTEMS, INC. (OESX)

Role: EVP, CFO, CAO & Treasurer
Signature: /s/ Steven R. Barth, Attorney-in-Fact for J. Per Brodin
Issuer symbol: OESX
Transactions as of: 27 Feb 2026
Net transactions value: +$5,535
Form type: 4
Filing time: 27 Feb 2026, 18:19:11 UTC
Previous filing: 18 Jul 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
BRODIN J PER	EVP, CFO, CAO & Treasurer	2210 WOODLAND DRIVE, MANITOWOC	/s/ Steven R. Barth, Attorney-in-Fact for J. Per Brodin	27 Feb 2026	0001184632

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	OESX	Common Stock	Purchase	$5,535	+500	+0.54%	$11.07	92,811	27 Feb 2026	Direct	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
holding	OESX	Stock Options (right to buy)						12,500	27 Feb 2026	Common Stock	12,500	$6.00	Direct	F2, F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	On August 22, 2025, the issuer effected a 1-for-10 reverse stock split of the issued and outstanding shares of its common stock. Upon effectiveness of the reverse stock split, every 10 shares of common stock was automatically converted into one share of common stock, resulting in the reporting person's beneficial ownership of 830,802 less shares of common stock held directly.
F2	Grant to reporting person of option to buy shares under the Orion Energy Systems, Inc. 2016 Omnibus Incentive Plan. This option was granted July 16, 2025 and becomes exercisable, if at all, in three equal increments if the average closing sale price of Orion Energy Systems, Inc.'s common stock, for five consecutive trading days during the three calendar years immediately following the date of the grant, equals or exceeds $30.00, $40.00 and $50.00, respectively.
F3	On August 22, 2025, the issuer effected a 1-for-10 reverse stock split of the issued and outstanding shares of its common stock. Upon effectiveness of the reverse stock split, every 10 shares of common stock was automatically converted into one share of common stock, and the number of shares subject to the reporting person's option was divided by 10, such that the option is exercisable for 112,500 less shares of common stock. Additionally, proportionate equitable adjustments were made to the exercise price of the option and the vesting requirements for the performance-vesting portion of the option.