Genelux CEO sells 34,463 shares for tax bill

GENELUX’s CEO sold shares primarily to cover tax obligations from RSU vesting and continues to hold over 1.2 million shares.

Rhea-AI Filing Summary

GENELUX Corp (GNLX) reported that President and CEO Thomas Zindrick sold 34,463 shares of common stock on August 31, 2026 at a weighted average price of $2.6666 per share, in transactions with prices between $2.59 and $2.81. The company states these shares were sold to cover the reporting person's estimated taxes related to the vesting of restricted stock units. Following the sale, Zindrick directly holds 1,226,427 shares of GENELUX common stock, and no Rule 10b5-1 trading plan is reported for this transaction.

Insider Trade Summary

Net Seller: 34,463 shares

Net Sell 1 txn

Insider Zindrick Thomas

Role President and CEO

Sold 34,463 shs ($92K)

Type	Security	Shares	Price	Value
Sale	Common Stock F1, F2	34,463	$2.6666	$92K

Holdings After Transaction: Common Stock — 1,226,427 shares (Direct)

Footnotes (2)

1. F1. 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.
2. F2. The weighted average sale price for the transaction reported was $2.6666, and the range of prices were between $2.59 and $2.81. Upon request by the SEC staff, the Issuer, or any security holder of the Issuer, full information regarding the number of shares sold at each separate price will be provided

Key Figures

Shares sold: 34,463 shares Weighted average sale price: $2.6666 per share Sale price range: $2.59–$2.81 per share +1 more

4 metrics

Shares sold 34,463 shares Non-derivative sale by CEO on August 31, 2026

Weighted average sale price $2.6666 per share CEO sale on August 31, 2026

Sale price range $2.59–$2.81 per share Prices for the CEO’s August 31, 2026 transactions

Shares held after transaction 1,226,427 shares CEO’s direct GENELUX common stock holdings after the sale

Key Terms

restricted stock units, weighted average sale price, non-derivative

3 terms

restricted stock units financial

"in connection with the vesting of restricted stock units"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

weighted average sale price financial

"The weighted average sale price for the transaction reported was $2.6666"

non-derivative financial

"The sale is classified as a non-derivative transaction"

FAQ

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

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

GENELUX disclosed that President and CEO Thomas Zindrick sold 34,463 shares of common stock on August 31, 2026 at a weighted average price of $2.6666 per share, with trade prices ranging between $2.59 and $2.81.

Why did the GENELUX (GNLX) CEO sell 34,463 shares?

The filing states the shares were sold by the CEO to cover estimated taxes due in connection with the vesting of restricted stock units. This indicates the sale was tied to a compensation-related vesting event rather than a discretionary liquidation.

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

After the reported sale, Thomas Zindrick directly holds 1,226,427 shares of GENELUX common stock. This post-transaction holding is disclosed as his direct ownership position following the August 31, 2026 transactions.

At what prices were the GENELUX (GNLX) shares sold by the CEO?

The filing reports a weighted average sale price of $2.6666 per share, with individual trades executed in a price range between $2.59 and $2.81. Full breakdowns by price level are available upon request to the issuer or SEC staff.

Was the GENELUX (GNLX) CEO’s sale under a Rule 10b5-1 trading plan?

No Rule 10b5-1 plan is reported. The document-level checkbox for Rule 10b5-1 is unchecked, and the footnotes do not state that the sale was made under a pre-arranged trading plan.

What type of GENELUX (GNLX) security did Thomas Zindrick sell?

Thomas Zindrick sold common stock of GENELUX Corp. The sale is classified as a non-derivative transaction and is associated with tax obligations arising from the vesting of restricted stock units.

AI-generated analysis. How Rhea-AI works. Not financial advice.

Form 4 Insider Transactions: What Each Field Means →

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Available on EDGAR 09/02/2026 - 07:05 PM EDT Accepted by SEC EDGAR 09/02/2026 - 07:05 PM EDT 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^*

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)
08/31/2026

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	08/31/2026		S(1)		34,463	D	$2.6666(2)	1,226,427	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.

2. The weighted average sale price for the transaction reported was $2.6666, and the range of prices were between $2.59 and $2.81. Upon request by the SEC staff, the Issuer, or any security holder of the Issuer, full information regarding the number of shares sold at each separate price will be provided

	/s/ Thomas Zindrick	09/02/2026
	** 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)