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

Qualys (QLYS) CFO Joo Mi Kim sells 1,031 shares in pre-set 10b5-1 trades

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

Rhea-AI Filing Summary

QUALYS, INC. Chief Financial Officer Joo Mi Kim reported selling a total of 1,031 shares of Common Stock on June 2, 2026 in open-market transactions. Sale prices ranged from about $109 to $114 per share, reported as weighted averages by price band.

The filing notes these sales were executed under a pre-arranged Rule 10b5-1 trading plan adopted on August 12, 2025, indicating they were scheduled in advance. After the reported transactions, Form 4 line items show Ms. Kim continuing to hold a sizable direct stake in Qualys shares.

Positive

  • None.

Negative

  • None.
Insider Kim Joo Mi
Role CHIEF FINANCIAL OFFICER
Sold 1,031 shs ($115K)
Type Security Shares Price Value
Sale Common Stock 306 $109.785 $34K
Sale Common Stock 153 $110.60 $17K
Sale Common Stock 153 $112.0467 $17K
Sale Common Stock 419 $113.2917 $47K
Holdings After Transaction: Common Stock — 82,905 shares (Direct, null)
Footnotes (1)
  1. 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 $109.24 to $110.18 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 $110.25 to $110.78 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 $111.63 to $112.43 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. The sale price represents the weighted average price of the shares sold ranging from $113.07 to $113.53 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.
Total shares sold 1,031 shares Net open-market sales by CFO on June 2, 2026
Highest reported weighted-average price $113.2917 per share One transaction line for Common Stock sale
Lowest reported weighted-average price $109.7850 per share One transaction line for Common Stock sale
Price range from footnotes $109.24–$113.53 per share Combined price bands for reported sales
Shares held after one transaction 82,180 shares Total shares following a reported sale line
Rule 10b5-1 trading plan regulatory
"The sale transaction reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted..."
A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.
weighted average price financial
"The sale price represents the weighted average price of the shares sold ranging from $109.24 to $110.18 per share."
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
open-market sale financial
"transaction_action": "open-market sale""
An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.
Common Stock financial
"security_title": "Common Stock""
Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.
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Form 4 Insider Transactions: What Each Field Means →
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).
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 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)
Director10% Owner
XOfficer (give title below)Other (specify below)
CHIEF FINANCIAL OFFICER
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/02/2026		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 Stock06/02/2026S(1)306D$109.785(2)82,905D
Common Stock06/02/2026S(1)153D$110.6(3)82,752D
Common Stock06/02/2026S(1)153D$112.0467(4)82,599D
Common Stock06/02/2026S(1)419D$113.2917(5)82,180D
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 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.
2. The sale price represents the weighted average price of the shares sold ranging from $109.24 to $110.18 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.
3. The sale price represents the weighted average price of the shares sold ranging from $110.25 to $110.78 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 $111.63 to $112.43 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.
5. The sale price represents the weighted average price of the shares sold ranging from $113.07 to $113.53 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 Kim06/03/2026
** 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)

Source: View Original Filing on SEC EDGAR

FAQ

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

Qualys reported that CFO Joo Mi Kim sold 1,031 shares of Common Stock in multiple open-market trades on June 2, 2026. The sales were made at different weighted-average prices and disclosed on a Form 4 insider filing with the SEC.

At what prices did the Qualys (QLYS) CFO sell her shares?

The CFO’s sales occurred at weighted-average prices within several ranges, from $109.24 up to $113.53 per share. Each transaction line reports a specific average price, and footnotes describe the full price bands for the underlying individual trades.

How many Qualys (QLYS) shares did the CFO sell in total?

The Form 4 shows that CFO Joo Mi Kim sold a total of 1,031 Qualys Common Stock shares. These were split across four separate open-market sale transactions, each with its own share count and weighted-average sale price on June 2, 2026.

Were the Qualys (QLYS) CFO share sales under a Rule 10b5-1 plan?

Yes. A footnote states the sale transactions were effected under a Rule 10b5-1 trading plan adopted on August 12, 2025. Such plans pre-schedule trades, suggesting the timing of these June 2, 2026 sales was arranged in advance.

How many Qualys (QLYS) shares does the CFO hold after these sales?

Individual transaction lines report direct holdings after each sale, including one entry showing 82,180 shares following a transaction. These figures indicate that, despite the 1,031 shares sold, the CFO continues to maintain a substantial direct ownership position.