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

Qualys, Inc. (QLYS) legal chief sells 882 shares under 10b5-1 plan

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

Rhea-AI Filing Summary

Bruce K. Posey, Chief Legal Officer of Qualys, Inc., sold a total of 882 shares of Qualys common stock on July 20, 2026 in a series of open market or private transactions. The sales were executed under a Rule 10b5-1 trading plan adopted on August 21, 2025. The transactions occurred in four tranches: 243 shares at a weighted average price of $156.7107 per share (with individual prices ranging from $156.28 to $157.08), 334 shares at a weighted average price of $158.0580 (ranging from $157.79 to $158.49), 262 shares at a weighted average price of $159.3459 (ranging from $158.91 to $159.76), and 43 shares at $160.18 per share.

Positive

  • None.

Negative

  • None.
Insider POSEY BRUCE K
Role CHIEF LEGAL OFFICER
Sold 882 shs ($140K)
Type Security Shares Price Value
Sale Common Stock F1, F2 243 $156.7107 $38K
Sale Common Stock F1, F3 334 $158.058 $53K
Sale Common Stock F1, F4 262 $159.3459 $42K
Sale Common Stock F1 43 $160.18 $7K
Holdings After Transaction: Common Stock — 62,689 shares (Direct)
Footnotes (4)
  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 21, 2025.
  2. F2. The sale price represents the weighted average price of the shares sold ranging from $156.28 to $157.08 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 $157.79 to $158.49 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.
  4. F4. The sale price represents the weighted average price of the shares sold ranging from $158.91 to $159.76 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 882 shares Aggregate Qualys common shares sold by Bruce K. Posey on July 20, 2026
Tranche 1 sale 243 shares at $156.7107 per share Weighted average sale price; individual trades between $156.28 and $157.08
Tranche 2 sale 334 shares at $158.0580 per share Weighted average sale price; individual trades between $157.79 and $158.49
Tranche 3 sale 262 shares at $159.3459 per share Weighted average sale price; individual trades between $158.91 and $159.76
Tranche 4 sale 43 shares at $160.18 per share Direct per-share sale price reported for the final tranche
10b5-1 plan adoption date August 21, 2025 Date Bruce K. Posey adopted the Rule 10b5-1 trading plan used for these sales
Rule 10b5-1 trading plan regulatory
"The sale transaction ... was effected pursuant to a Rule 10b5-1 trading plan"
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"
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 regulatory
"Sale in open market or private transaction"

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

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FAQ

What insider stock sale did Qualys (QLYS) report for Bruce K. Posey?
Qualys Chief Legal Officer Bruce K. Posey reported selling 882 shares of Qualys common stock on July 20, 2026. The sales were executed in four separate transactions at weighted average prices between $156.28 and $160.18 per share.

At what prices did Bruce K. Posey sell Qualys (QLYS) shares?
Bruce K. Posey sold Qualys shares at weighted average prices of $156.7107, $158.0580, $159.3459, and $160.18 per share. Footnotes state the underlying individual trades occurred within price ranges from $156.28 up to $159.76 per share.

How many Qualys (QLYS) share-sale tranches did Bruce K. Posey execute?
Bruce K. Posey executed four tranches of Qualys common stock sales on July 20, 2026. These tranches covered 243, 334, 262, and 43 shares, respectively, for a total of 882 shares sold in open market or private transactions.

Were Bruce K. Posey’s Qualys (QLYS) stock sales under a Rule 10b5-1 plan?
Yes. All reported sales were effected under a Rule 10b5-1 trading plan adopted by Bruce K. Posey on August 21, 2025. Such pre-arranged plans allow insiders to schedule trades in advance according to predetermined instructions.

What does the Form 4 reveal about the nature of Bruce K. Posey’s Qualys (QLYS) transactions?
The Form 4 shows that Bruce K. Posey’s transactions involved non-derivative common stock and were coded as “S” for sales. Each transaction is described as a sale in an open market or private transaction, with prices presented on a weighted average basis.
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*
POSEY BRUCE K
(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 LEGAL OFFICER
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
07/20/2026		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 Stock07/20/2026S(1)243D$156.7107(2)63,328D
Common Stock07/20/2026S(1)334D$158.058(3)62,994D
Common Stock07/20/2026S(1)262D$159.3459(4)62,732D
Common Stock07/20/2026S(1)43D$160.1862,689D
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 21, 2025.
2. The sale price represents the weighted average price of the shares sold ranging from $156.28 to $157.08 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 $157.79 to $158.49 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.
4. The sale price represents the weighted average price of the shares sold ranging from $158.91 to $159.76 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 K. Posey07/21/2026
** 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