Acorn Energy director exercises 625 stock options

Acorn Energy director exercises stock options and adds shares Acorn Energy director Samuel M. Zentman exercised 625 stock options at an exercise price of $4.96 per share on February 5, 2026, receiving the same number of common shares.

Rhea-AI Filing Summary

Acorn Energy director exercises stock options and adds shares

Acorn Energy director Samuel M. Zentman exercised 625 stock options at an exercise price of $4.96 per share on February 5, 2026, receiving the same number of common shares. These options were originally granted on February 5, 2019 under the company’s Amended and Restated 2006 Stock Incentive Plan for his Board service.

Following this transaction, Zentman directly owns 7,242 shares of Acorn Energy common stock. The option position reported in this filing was fully exercised, leaving 0 derivative securities of this grant outstanding.

Insider Trade Summary

625 shares exercised/converted

Exercise 2 txns

Insider ZENTMAN SAMUEL M

Role Director

Type	Security	Shares	Price	Value
Exercise	stock options	625	$0.00	$0.00
Exercise	common stock	625	$4.96	$3K

Holdings After Transaction: stock options — 0 contracts (Direct); common stock — 7,242 shares (Direct)

Footnotes (2)

1. F1. Granted on 2/5/19 pursuant to the issuer's Amended and Restated 2006 Stock Incentive Plan in connection with the reporting person's service on the Board of Directors.
2. F2. One-fourth of the options vested and became exercisable on each of 2/5/19, 4/1/19, 7/1/19 and 10/1/19.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did Acorn Energy (ACFN) report for Samuel M. Zentman?

Acorn Energy reported that director Samuel M. Zentman exercised 625 stock options, receiving 625 common shares. The options were part of a 2019 grant under the company’s 2006 Stock Incentive Plan related to his Board of Directors service.

At what price did Samuel M. Zentman exercise his Acorn Energy (ACFN) stock options?

Samuel M. Zentman exercised 625 Acorn Energy stock options at an exercise price of $4.96 per share. This exercise converted the options into the same number of common shares, as disclosed in the Form 4 insider trading report.

How many Acorn Energy (ACFN) shares does Samuel M. Zentman own after this Form 4 transaction?

After exercising 625 stock options, Samuel M. Zentman directly owns 7,242 shares of Acorn Energy common stock. This total reflects his updated direct beneficial ownership following the February 5, 2026 option exercise transaction.

What happened to the Acorn Energy (ACFN) stock options reported in this Form 4?

The 625 Acorn Energy stock options reported were fully exercised on February 5, 2026, resulting in 625 common shares issued. Following this transaction, the number of derivative securities from this grant remaining beneficially owned is reported as zero.

When were the Acorn Energy (ACFN) options exercised by Samuel M. Zentman originally granted?

The options exercised by Samuel M. Zentman on February 5, 2026 were originally granted on February 5, 2019. They were issued under Acorn Energy’s Amended and Restated 2006 Stock Incentive Plan for his service on the Board of Directors.

How did Samuel M. Zentman’s Acorn Energy (ACFN) options vest before this exercise?

The options vested in four equal installments: one-fourth became exercisable on each of February 5, 2019, April 1, 2019, July 1, 2019 and October 1, 2019. This schedule allowed full vesting before the 2026 exercise reported.

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Accepted by SEC EDGAR 02/09/2026 - 10:43 AM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

ZENTMAN SAMUEL M

(Last) (First) (Middle)

C/O ACORN ENERGY, INC.

1000 N WEST ST, SUITE 1200

(Street)

WILMINGTON DE 19801

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
ACORN ENERGY, INC. [ ACFN ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
02/05/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
common stock	02/05/2026		M		625	A	$4.96	7,242	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
stock options(1)	$4.96	02/05/2026		M			625	(2)	02/05/2026	common stock	625	$0	0	D

Explanation of Responses:

1. Granted on 2/5/19 pursuant to the issuer's Amended and Restated 2006 Stock Incentive Plan in connection with the reporting person's service on the Board of Directors.

2. One-fourth of the options vested and became exercisable on each of 2/5/19, 4/1/19, 7/1/19 and 10/1/19.

	/s/ Samuel M. Zentman	02/06/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.