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  4. [Form 4] QUALYS, INC. Insider Trading Activity

Qualys (NASDAQ: QLYS) CFO Kim sells shares under 10b5-1 trading plan

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

Rhea-AI Filing Summary

Qualys, Inc.'s chief financial officer Joo Mi Kim reported share sales and tax withholding transactions in company stock. On February 1, 2026, 2,769 shares of common stock were withheld at $131.90 per share to cover tax liabilities from vesting restricted stock units. On February 2, 2026, she sold 2,108 shares at a weighted average price of $135.0468, 1,006 shares at $136.37, and 300 shares at $137.1908 per share. These sales were made under a pre-arranged Rule 10b5-1 trading plan adopted on August 12, 2025. Following the last reported transaction, Kim directly owned 88,489 shares of Qualys common stock.

Positive

  • None.

Negative

  • None.
Insider Kim Joo Mi
Role CHIEF FINANCIAL OFFICER
Sold 3,414 shs ($463K)
Type Security Shares Price Value
Sale Common Stock 2,108 $135.0468 $285K
Sale Common Stock 1,006 $136.37 $137K
Sale Common Stock 300 $137.1908 $41K
Tax Withholding Common Stock 2,769 $131.90 $365K
Holdings After Transaction: Common Stock — 89,795 shares (Direct)
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. The sale transaction reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 12, 2025. The sale price represents the weighted average price of the shares sold ranging from $134.44 to $135.32 per share. Upon request by the Commission staff, the Issuer or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4. The sale price represents the weighted average price of the shares sold ranging from $135.86 to $136.59 per share. Upon request by the Commission staff, the Issuer or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4. The sale price represents the weighted average price of the shares sold ranging from $137.03 to $137.43 per share. Upon request by the Commission staff, the Issuer or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.
Form 4 Insider Transactions: What Each Field Means →
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).
X
 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*
Kim Joo Mi
(Last) (First) (Middle)
C/O QUALYS, INC.
919 E. HILLSDALE BLVD.
(Street)
FOSTER CITY CA 94404
(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
QUALYS, INC. [ QLYS ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
X Officer (give title below) Other (specify below)
CHIEF FINANCIAL OFFICER
3. Date of Earliest Transaction (Month/Day/Year)
02/01/2026
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 02/01/2026 F 2,769(1) D $131.9 91,903 D
Common Stock 02/02/2026 S(2) 2,108 D $135.0468(3) 89,795 D
Common Stock 02/02/2026 S(2) 1,006 D $136.37(4) 88,789 D
Common Stock 02/02/2026 S(2) 300 D $137.1908(5) 88,489 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.
2. The sale transaction reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 12, 2025.
3. The sale price represents the weighted average price of the shares sold ranging from $134.44 to $135.32 per share. Upon request by the Commission staff, the Issuer or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.
4. The sale price represents the weighted average price of the shares sold ranging from $135.86 to $136.59 per share. Upon request by the Commission staff, the Issuer or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.
5. The sale price represents the weighted average price of the shares sold ranging from $137.03 to $137.43 per share. Upon request by the Commission staff, the Issuer or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.
/s/ Bruce Posey by power of attorney for Joo Mi Kim 02/03/2026
** 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.

Source: View Original Filing on SEC EDGAR

FAQ

What insider transactions did Qualys (QLYS) CFO Joo Mi Kim report?

Qualys CFO Joo Mi Kim reported tax-related share withholding and multiple stock sales. Shares were withheld on February 1, 2026, to cover taxes from vesting RSUs, and she executed several open-market sales of common stock on February 2, 2026, at varying prices.

How many Qualys (QLYS) shares were withheld for taxes for the CFO?

On February 1, 2026, 2,769 Qualys common shares were withheld at $131.90 per share. This withholding covered Joo Mi Kim’s tax liability arising from the vesting of restricted stock units, rather than being an open-market sale initiated for portfolio or liquidity reasons.

At what prices did the Qualys (QLYS) CFO sell shares on February 2, 2026?

On February 2, 2026, the CFO reported three sale tranches of Qualys common stock. She sold 2,108 shares at $135.0468, 1,006 shares at $136.37, and 300 shares at $137.1908, each reflecting weighted average sale prices within disclosed intraday price ranges.

Were the Qualys (QLYS) CFO’s stock sales made under a Rule 10b5-1 plan?

Yes. The filing states the sale transactions were effected under a Rule 10b5-1 trading plan adopted on August 12, 2025. Such pre-arranged plans allow insiders to systematically sell shares according to preset instructions, helping separate trading activity from later information.

How many Qualys (QLYS) shares does CFO Joo Mi Kim hold after these transactions?

After the reported February 2026 transactions, Joo Mi Kim directly owned 88,489 shares of Qualys common stock. This figure reflects her holdings following both the tax-withholding event tied to restricted stock units and the subsequent open-market sales disclosed in the Form 4.

What do the weighted average prices mean in the Qualys (QLYS) CFO’s Form 4?

The reported sale prices are weighted averages of multiple trades within stated price ranges. For example, one tranche averaged $135.0468 between $134.44 and $135.32. The filing notes that detailed per-trade price and size information is available upon request to the company or regulators.