[Form 4] Qualys, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Bruce K. Posey, Chief Legal Officer of Qualys, Inc. (QLYS), reported sales of common stock on 08/20/2025 executed under a Rule 10b5-1 trading plan adopted on 08/21/2024. The Form 4 discloses three sale entries: 308 shares at a weighted average price of $131.8922, 192 shares at $132.7383, and 25 shares at $133.618, leaving the reporting person with 57,840 shares beneficially owned after the transactions.

The filing indicates the sales were planned pursuant to the pre-established 10b5-1 plan and provides price ranges for the component trades. The reporting person signed the Form 4 on 08/21/2025. All information above is taken directly from the filed Form 4.

Positive

• Transactions were executed under a Rule 10b5-1 plan, indicating pre-planned, procedural sales
• Filing provides weighted average prices and price ranges for transparency
• Form 4 is signed and filed, meeting disclosure requirements

Negative

• Officer sold 525 shares, reducing beneficial ownership to 57,840 shares
• No information on total percentage ownership of the company is provided in this filing

Insights

Securities Analyst

TL;DR: Insider sales were executed under a pre-established 10b5-1 plan; transaction sizes are modest relative to typical insider holdings.

The filing shows scheduled dispositions by the Chief Legal Officer executed under a Rule 10b5-1 plan adopted in August 2024. The reported sales total 525 shares across three trades at weighted average prices between $131.89 and $133.62, resulting in 57,840 shares remaining beneficially owned. From a regulatory and governance perspective, use of a 10b5-1 plan signals the transactions were pre-planned to avoid timing concerns. The filing contains explicit per-trade weighted average prices and ranges and is procedurally complete.

Corporate Governance Expert

TL;DR: Disclosure is compliant and transparent about the 10b5-1 plan and weighted-average pricing ranges.

The Form 4 clearly states the trades were effected pursuant to a Rule 10b5-1 trading plan and provides weighted average prices and price ranges for each reported sale. The reporting person attested and signed the Form 4 on 08/21/2025. There are no derivative transactions reported and the filing identifies the reporting person as an officer (Chief Legal Officer). This is a routine, non-material disclosure in the absence of other context in the filing.

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^*

POSEY BRUCE K

(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 LEGAL OFFICER

3. Date of Earliest Transaction (Month/Day/Year)
08/20/2025

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	08/20/2025		S(1)		308	D	$131.8922(2)	58,057	D
Common Stock	08/20/2025		S(1)		192	D	$132.7383(3)	57,865	D
Common Stock	08/20/2025		S(1)		25	D	$133.618(4)	57,840	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 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, 2024.

2. The sale price represents the weighted average price of the shares sold ranging from $131.40 to $132.31 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 $132.44 to $133.30 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 $133.45 to $133.73 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. Posey	08/21/2025
	** 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.

FAQ

What transactions did Bruce K. Posey file for QLYS on Form 4?

The Form 4 reports sales of 308, 192, and 25 shares of Qualys common stock on 08/20/2025 executed under a Rule 10b5-1 trading plan.

Were the sales by the QLYS reporting person pre-planned under a trading plan?

Yes. The Form 4 states the sales were effected pursuant to a Rule 10b5-1 trading plan adopted on 08/21/2024.

What prices were reported for the QLYS insider sales?

The filing lists weighted average prices of $131.8922, $132.7383, and $133.618, with price ranges provided for each sale.

How many QLYS shares does the reporting person own after the sales?

After the reported transactions, the Form 4 shows the reporting person beneficially owned 57,840 shares.

Did the Form 4 report any derivative transactions for QLYS?

No. Table II for derivative securities contains no reported transactions; only non-derivative common stock sales are disclosed.