Qualys (NASDAQ: QLYS) CEO covers RSU tax bill with 6,748 shares

Rhea-AI Filing Summary

Qualys, Inc. CEO and President Sumedh S. Thakar reported a tax-withholding disposition of 6,748 shares of common stock on August 1, 2026, at $144.75 per share. The shares were withheld to cover his tax liability from vesting restricted stock units, leaving him with 186,738 shares held directly afterward.

Insider Trade Summary

Net Seller: 6,748 shares

Net Sell 1 txn

Insider Thakar Sumedh S

Role CEO & PRESIDENT

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock F1	6,748	$144.75	$977K

Holdings After Transaction: Common Stock — 186,738 shares (Direct)

Footnotes (1)

1. F1. The reported shares were withheld to cover the Reporting Person's tax liability in connection with the vesting of restricted stock units.

Key Figures

Shares withheld for taxes: 6,748 shares Per-share value for tax: $144.75 per share Shares held after transaction: 186,738 shares

3 metrics

Shares withheld for taxes 6,748 shares Tax-withholding disposition on August 1, 2026 for RSU vesting

Per-share value for tax $144.75 per share Value applied to the 6,748 withheld shares

Shares held after transaction 186,738 shares Direct Qualys common stock holdings after August 1, 2026 event

Key Terms

restricted stock units, tax liability, withheld to cover

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.

tax liability financial

"were withheld to cover the Reporting Person's tax liability"

withheld to cover financial

"The reported shares were withheld to cover"

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

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 08/03/2026 - 04:59 PM Accepted by SEC EDGAR 08/03/2026 - 04:59 PM Learn about SEC filing dates

FAQ

What insider transaction did Qualys (QLYS) report for its CEO?

Qualys reported that CEO Sumedh S. Thakar had 6,748 shares of common stock withheld on August 1, 2026. The shares were used to cover his tax liability arising from the vesting of restricted stock units, rather than being sold in the open market.

How many Qualys (QLYS) shares were withheld to cover the CEO's taxes?

A total of 6,748 Qualys shares were withheld from CEO Sumedh S. Thakar. These shares, valued at $144.75 per share, were applied to satisfy his tax obligations triggered by vesting restricted stock units.

What is Sumedh Thakar's Qualys (QLYS) shareholding after this Form 4 event?

After the tax-withholding transaction, CEO Sumedh S. Thakar directly holds 186,738 shares of Qualys common stock. This figure reflects his position immediately following the August 1, 2026 restricted stock unit vesting and related tax settlement.

Was the Qualys (QLYS) CEO's Form 4 transaction an open-market sale?

No. The Form 4 shows a code F transaction, meaning shares were withheld to pay taxes. According to the footnote, the 6,748 shares covered the CEO's tax liability from restricted stock unit vesting, not a discretionary market sale.

What price per share applied to the Qualys (QLYS) CEO's withheld shares?

The withheld shares were valued at $144.75 per share. This per-share amount is used to determine the tax-withholding value on the 6,748 shares connected to the vesting of the CEO’s restricted stock units on August 1, 2026.

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^*

Thakar Sumedh S

(Last) (First) (Middle)

C/O QUALYS, INC.

919 E. HILLSDALE BLVD.

(Street)

FOSTER CITY CALIFORNIA 94404

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
QUALYS, INC. [ QLYS ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/01/2026

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	08/01/2026		F		6,748(1)	D	$144.75	186,738	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. The reported shares were withheld to cover the Reporting Person's tax liability in connection with the vesting of restricted stock units.

	/s/ Bruce Posey by power of attorney for Sumedh S. Thakar	08/03/2026
	** 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)