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Qualys (QLYS) CEO Thakar has shares withheld to cover RSU tax liability

Filing Impact
(Very High)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

QUALYS, INC. CEO and President Sumedh S. Thakar reported a routine tax-related share disposition. On the RSU vesting date, 6,748 shares of common stock were withheld at $88.53 per share to cover his tax liability, rather than being sold on the open market.

After this withholding, he directly holds 263,086 shares of Qualys common stock. This total includes 193 shares acquired on February 15, 2026 through the company’s Employee Stock Purchase Plan in an exempt transaction.

Positive

  • None.

Negative

  • None.
Insider Thakar Sumedh S
Role CEO & PRESIDENT
Type Security Shares Price Value
Tax Withholding Common Stock 6,748 $88.53 $597K
Holdings After Transaction: Common Stock — 263,086 shares (Direct, null)
Footnotes (1)
  1. The reported shares were withheld to cover the Reporting Person's tax liability in connection with the vesting of restricted stock units. Includes 193 shares that were acquired on February 15, 2026 through the Issuer's Employee Stock Purchase Plan in a transaction that was exempt under both Rule 16b-3(d) and Rule 16b-3(c).
Shares withheld for taxes 6,748 shares Tax-withholding disposition tied to RSU vesting
Implied share value $88.53 per share Value used for 6,748 withheld shares
Shares held after transaction 263,086 shares Direct Qualys common stock holdings after withholding
ESPP shares included 193 shares Acquired on February 15, 2026 via Employee Stock Purchase Plan
restricted stock units financial
"tax liability 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.
Employee Stock Purchase Plan financial
"acquired on February 15, 2026 through the Issuer's Employee Stock Purchase Plan"
An employee stock purchase plan is a company program that lets workers buy shares through small payroll deductions, often at a discount to the market price and after a set offering period. Think of it like a workplace savings plan that turns into ownership: it encourages employees to share in the company’s success and can create predictable buying or selling of stock that investors watch because it affects supply, demand and employee incentives.
Rule 16b-3(d) regulatory
"in a transaction that was exempt under both Rule 16b-3(d) and Rule 16b-3(c)."
Rule 16b-3(c) regulatory
"in a transaction that was exempt under both Rule 16b-3(d) and Rule 16b-3(c)."
An SEC rule that lets corporate insiders avoid automatic "short‑swing" profit recovery when they buy or sell their company’s stock under a pre‑approved, written plan that meets specific conditions. For investors, it matters because it clarifies when insider trades are treated as routine, reducing legal uncertainty and helping distinguish trades made for ordinary compensation or pre‑planned reasons from those that might signal opportunistic or timely insider advantage.
tax-withholding disposition financial
"transaction_action": "tax-withholding disposition""
A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.
SEC Form 4
FORM 4UNITED 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)
XDirector10% Owner
XOfficer (give title below)Other (specify below)
CEO & PRESIDENT
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
05/01/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Common Stock05/01/2026F6,748(1)D$88.53263,086(2)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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount 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.
2. Includes 193 shares that were acquired on February 15, 2026 through the Issuer's Employee Stock Purchase Plan in a transaction that was exempt under both Rule 16b-3(d) and Rule 16b-3(c).
/s/ Bruce Posey by power of attorney for Sumedh S. Thakar05/04/2026
** Signature of Reporting PersonDate
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 Qualys (QLYS) CEO Sumedh Thakar report?

Qualys CEO Sumedh Thakar reported a tax-withholding disposition of 6,748 common shares. The shares were withheld by the company to satisfy taxes due upon vesting of restricted stock units, rather than sold in an open-market transaction.

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

No, the Form 4 shows a tax-withholding disposition, not an open-market sale. Shares were withheld by Qualys to cover Sumedh Thakar’s tax obligations tied to restricted stock unit vesting, a common administrative process for equity compensation.

How many Qualys (QLYS) shares does CEO Sumedh Thakar hold after this filing?

After the reported tax-withholding transaction, Sumedh Thakar directly holds 263,086 Qualys common shares. This figure includes 193 shares acquired on February 15, 2026 under the Employee Stock Purchase Plan in an exempt transaction.

What price per share is shown in the Qualys (QLYS) Form 4 transaction?

The Form 4 lists a value of $88.53 per share for the 6,748 shares withheld. This figure reflects the price used to determine the tax-withholding amount in connection with the vesting of restricted stock units for the CEO.

What do the Qualys (QLYS) Form 4 footnotes explain about the transaction?

The footnotes state the reported shares were withheld to cover the CEO’s tax liability from restricted stock unit vesting, and that 193 additional shares were acquired on February 15, 2026 through Qualys’ Employee Stock Purchase Plan in exempt transactions.