Genelux (GNLX) CEO sells shares to cover RSU tax obligations

Rhea-AI Filing Summary

GENELUX Corp President and CEO Thomas Zindrick reported an open-market sale of 3,582 shares of Common Stock on March 24, 2026 at an average price of $2.42 per share. According to the footnote, the sale was made to cover estimated taxes related to vesting restricted stock units, and he now directly holds 534,849 shares.

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

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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^*

Zindrick Thomas

(Last) (First) (Middle)

C/O GENELUX CORPORATION

2625 TOWNSGATE ROAD, SUITE 230

(Street)

WESTLAKE VILLAGE CALIFORNIA 91361

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
GENELUX Corp [ GNLX ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/24/2026

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

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

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

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	03/24/2026		S(1)		3,582	D	$2.42	534,849	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

Explanation of Responses:

1. Represents shares sold by the Reporting Person to cover estimated taxes to be paid by the Reporting Person in connection with the vesting of restricted stock units.

	/s/ Thomas Zindrick, J.D.	03/26/2026
	** 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.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did GENELUX Corp (GNLX) report for Thomas Zindrick?

GENELUX Corp reported that President and CEO Thomas Zindrick sold 3,582 shares of Common Stock on March 24, 2026. The sale was an open-market transaction at an average price of $2.42 per share, disclosed on a Form 4 filing.

Why did GENELUX Corp CEO Thomas Zindrick sell shares according to the Form 4?

The Form 4 footnote states Zindrick sold shares to cover estimated taxes from vesting restricted stock units. This indicates the transaction was primarily tax-related, linked to equity compensation, rather than a discretionary sale motivated by a change in his investment view.

How many GENELUX Corp (GNLX) shares does Thomas Zindrick hold after the reported sale?

After the reported transaction, Thomas Zindrick directly holds 534,849 shares of GENELUX Corp Common Stock. This post-transaction balance is disclosed in the Form 4 and reflects his remaining direct ownership following the 3,582-share sale to cover estimated tax obligations.

What was the price per share in Thomas Zindrick’s GENELUX (GNLX) stock sale?

The reported sale was executed at an average price of $2.42 per share. This price applies to the 3,582 GENELUX Corp Common Stock shares sold on March 24, 2026, as disclosed in the Form 4 insider transaction details.

Is the GENELUX Corp CEO’s Form 4 transaction part of equity compensation activity?

Yes. The footnote explains that the shares were sold to cover estimated taxes due on vesting restricted stock units. This links the sale directly to equity compensation, indicating a tax-related liquidity event rather than a standalone portfolio adjustment.