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

Qualys CFO sells 1,030 shares under trading plan

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

Rhea-AI Filing Summary

QUALYS, INC. (QLYS) reports that Chief Financial Officer Joo Mi Kim sold a total of 1,030 shares of common stock on September 2, 2026 in multiple open-market transactions under a Rule 10b5-1 trading plan adopted on August 12, 2025. The reported weighted average sale prices for the tranches were approximately $167.49, $168.75, $170.05, $171.14, and $172.37 per share, based on price ranges disclosed in the footnotes.

Positive

  • None.

Negative

  • None.
Insider Kim Joo Mi
Role CHIEF FINANCIAL OFFICER
Sold 1,030 shs ($175K)
Type Security Shares Price Value
Sale Common Stock F1, F2 293 $167.4897 $49K
Sale Common Stock F1, F3 166 $168.754 $28K
Sale Common Stock F1, F4 204 $170.0475 $35K
Sale Common Stock F1, F5 265 $171.1442 $45K
Sale Common Stock F1, F6 102 $172.37 $18K
Holdings After Transaction: Common Stock — 74,713 shares (Direct)
Footnotes (6)
  1. F1. 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. F2. The sale price represents the weighted average price of the shares sold ranging from $166.97 to $167.85 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. F3. The sale price represents the weighted average price of the shares sold ranging from $168.37 to $169.01 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. F4. The sale price represents the weighted average price of the shares sold ranging from $169.68 to $170.64 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. F5. The sale price represents the weighted average price of the shares sold ranging from $170.69 to $171.49 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.
  6. F6. The sale price represents the weighted average price of the shares sold ranging from $172.15 to $172.59 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.
Total shares sold 1,030 shares Aggregate common stock sales by the CFO on September 2, 2026
First tranche 293 shares at $167.4897 per share Open-market sale of common stock on September 2, 2026
Second tranche 166 shares at $168.7540 per share Open-market sale of common stock on September 2, 2026
Third tranche 204 shares at $170.0475 per share Open-market sale of common stock on September 2, 2026
Fourth tranche 265 shares at $171.1442 per share Open-market sale of common stock on September 2, 2026
Fifth tranche 102 shares at $172.3700 per share Open-market sale of common stock on September 2, 2026
Rule 10b5-1 trading plan adoption date August 12, 2025 Plan under which the reported sales were effected
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 by the Reporting Person on August 12, 2025."
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 $166.97 to $167.85 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 or private transaction market
"Sale in open market or private transaction"

FAQ

What insider transaction did QUALYS, INC. (QLYS) disclose for September 2, 2026?
QUALYS, INC. disclosed that its Chief Financial Officer, Joo Mi Kim, sold a total of 1,030 shares of the company’s common stock on September 2, 2026 in a series of open-market transactions reported on Form 4.

At what prices did the QLYS CFO sell shares reported in this Form 4?
The reported transactions show weighted average sale prices of about $167.49, $168.75, $170.05, $171.14, and $172.37 per share, each corresponding to trades within specified price ranges disclosed in the footnotes.

How many QUALYS (QLYS) shares did the CFO sell in each tranche?
The CFO sold 293 shares at a weighted average of about $167.49, 166 shares at about $168.75, 204 shares at about $170.05, 265 shares at about $171.14, and 102 shares at about $172.37, totaling 1,030 shares.

Were the September 2, 2026 QLYS insider sales made under a Rule 10b5-1 plan?
Yes. The filing states that the sale transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by Chief Financial Officer Joo Mi Kim on August 12, 2025.

What price ranges are associated with the QLYS insider sales reported in this Form 4?
Footnotes state that the weighted average prices reflect sales within ranges of $166.97–$167.85, $168.37–$169.01, $169.68–$170.64, $170.69–$171.49, and $172.15–$172.59 per share. The insider will provide exact breakdowns upon request.

Who is the insider involved in the latest QUALYS (QLYS) Form 4 filing and what is their role?
The insider is Joo Mi Kim, who serves as Chief Financial Officer of QUALYS, INC. The Form 4 reports her open-market sales of the company’s common stock executed on September 2, 2026.

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

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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)
09/02/2026		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 Stock09/02/2026S(1)293D$167.4897(2)75,450D
Common Stock09/02/2026S(1)166D$168.754(3)75,284D
Common Stock09/02/2026S(1)204D$170.0475(4)75,080D
Common Stock09/02/2026S(1)265D$171.1442(5)74,815D
Common Stock09/02/2026S(1)102D$172.37(6)74,713D
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 $166.97 to $167.85 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 $168.37 to $169.01 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 $169.68 to $170.64 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 $170.69 to $171.49 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.
6. The sale price represents the weighted average price of the shares sold ranging from $172.15 to $172.59 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.
/s/ Bruce Posey by power of attorney for Joo Mi Kim09/03/2026
** 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